Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
SWP2702817_3
Cedar River at Renton Flood Damage Reduction Project Operation and Maintenance Manual January 6, 2003 1 INTRODUCTION 4 1.1 Project Description....................................................................................................................... 4 1.2 Authorization................................................................................................................................4 1.3 Location.........................................................................................................................................4 1.4 Project Purpose............................................................................................................................ 4 1.5 Construction History.................................................................................................................... 5 2 PROJECT COOPERATION AGREEMENT 6 2.1 Responsibility of Local Interests................................................................................................. 6 2.2 Failure of Non -Federal Interests to Operate and Maintain...................................................... 6 3 GENERAL PROCEDURES 7 3.1 Approved Regulations.................................................................................................................. 7 3.2 General Rules and Procedures.................................................................................................... 7 3.3 Duties of the Superintendent....................................................................................................... 7 3.4 Trespass on Rights-of-way........................................................................................................... 7 3.5 Improvements or Alterations....................................................................................................... 8 3.6 Annual Report..............................................................................................................................8 3.7 Periodic Inspections..................................................................................................................... 8 3.8 Surveys.......................................................................................................................................... 9 3.9 Checklists...................................................................................................................................... 9 3.10 Sequence of Operations................................................................................................................ 9 4 OPERATIONS DURING HIGH WATER FLOW 10 4.1 General........................................................................................................................................10 4.2 Procedures to be followed at Flood Stage................................................................................. 10 4.3 Bridge Operation........................................................................................................................ 11 4.4 Levee Operation......................................................................................................................... 12 4.5 Closure Gate Operation............................................................................................................. 12 4.6 Emergency Repairs.................................................................................................................... 14 5 PROJECT MAINTENANCE 15 5.1 Project Plans............................................................................................................................... 15 5.2 General Notes on Maintenance................................................................................................. 15 5.3 Specific Maintenance Procedures............................................................................................. 16 6 REPAIR, REPLACEMENT, AND REHABILITATION 19 6.1 Levee............................................................................................................................................19 6.2 Drainage Structures................................................................................................................... 19 6.3 TideFex Check Valves............................................................................................................... 19 7 OUTLINE OF ANNUAL REPORT 20 7.1 General........................................................................................................................................20 7.2 Earthfill Levee............................................................................................................................ 20 7.3 River Channel............................................................................................................................. 20 7.4 South Boeing Bridge................................................................................................................... 20 7.5 Closure Gates.............................................................................................................................. 20 7.6 Culvert Tideflex Valve............................................................................................................... 20 7.7 Landscaping................................................................................................................................20 7.8 Conditions During Flood Period...............................................................................................20 Appendix A: Project Cooperation Agreement Appendix B: Flood Control Regulations Appendix C: Agreement between The City of Renton and The Boeing Company Appendix D: the WEST Report Appendix E: As -Built Drawings for Levees and Floodwalls, dated 98DEC03 1 Introduction 1.1 Project Description The project consists of levees and floodwalls along both banks of the river, a section of PCC curb wall, and a channel deepened by excavation. Levee sections are minimum 8'-0" wide on top, with 2H:1V or shallower slopes. Some sections of the levee are wider, with a road on top, and some sections in the park are wider with more gradual slopes. The left bank levee from station 0+00 to about station 19+00 is designed to overtop in events greater than the design event, to prevent other areas from overtopping. The floodwalls are steel sheetpile below ground, concrete wall above ground. The sheetpile wall is located on the left bank, from about station 19+00 to about station 29+50, and again on the left bank from about 35+00 to 38+00, and again on the left bank from station 40+00 to 55+50. On the right bank, from about station 68+00 to about 73+80, protection is provided by a PCC curb wall. In addition to the levees and floodwalls, the project includes mitigation features. The mitigation features are the groundwater side -channel and the revetment at the Maplewood golf course, the Landsburg gravel supplementation, lighting reduction at the Boeing plant, riparian plantings along the lower river, tide flex valves at outfalls along the lower river, and the Elliott rearing/spawning channel. 1.2 Authorization The Cedar River at Renton Flood Damage Reduction Project was constructed under authority of Section 205 of the 1948 Flood control Act, as amended, and subject to local cooperation as set forth in Section 3 of the Flood Control Act of 1936, Public Law 738 as modified be Section 103 of the water Resources Development Act (WRDA) of 1986, Public Law 99-662. 1.3 Location The project area is the lower 1-'/4 miles of the Cedar River in the City of Renton, located in King County, Washington, immediately southeast of the City of Seattle. The Cedar River drainage basin is located southeast of Seattle, Washington, and lies entirely within the boundaries of King County. The basin is approximately 40 miles long, has a maximum width of 10 miles, and drains 188 square miles into Lake Washington at Renton. 1.4 Project Purpose The project is designed to provide protection from the 100-year flood. The project protects portions of downtown Renton, including the Boeing plant and the Renton airport. 1.5 Construction History The river excavation was performed by equipment rental method, using equipment hired from Gary Merlino Construction, Seattle, WA, and DKR Construction Inc, Union Gap, WA. The levee construction was performed by Ceccanti Corp. of Spanaway, Washington. DATE EVENT April 1998 River excavation construction contract advertised May 1998 PCA executed June 1998 River excavation construction contract awarded June 1998 River excavation construction initiated August 1998 River excavation completed December 1998 Levee contract advertised March 1999 Levee contract awarded April 1999 Levee construction initiated November 1999 Levee construction complete December 2000 Flood control complete, transferred to local sponsor 2 Project Cooperation Agreement The Corps of Engineers and the City of Renton have entered into a PCA for this project on May 9, 1998, as required by Public Law (99-662). A copy of the duly executed PCA is included as Appendix A of the Manual. 2.1 Responsibility of Local Interests The responsibility of local interests is defined by Section 3 of the Flood Control Act approved 22 June 1936, Public Law 738 as modified by Section 103 of the WRDA approved 19 November 1986. The project cooperation agreement (appendix A) signed by the City of Renton on 9 May 1998, in accordance with Public Law 738, lists the following responsibilities of the City of Renton. • Accomplish normal items of cooperation listed in article II paragraphs a through j of the project cooperation agreement. • Assume full responsibility for all project costs in excess of Federal cost limitation $5 million as provided in Section 915(a) of the Water Resources Development Act of 1986 (Public Law 99-662, approved 17 November 1986). • Comply with Civil Rights, Uniform Relocation Assistance and Real Property Acquisition regulations as described in Article III paragraph d of the project cooperation agreement. • Guarantee the Government reasonable access to the project for the purpose of inspection and, if necessary, operating, repairing, and maintaining the project. 2.2 Failure of Non -Federal Interests to Operate and Maintain In accordance with Paragraph d, Section 221 of Public Law 91-661, "The Chief of Engineers may undertake performance of those items of cooperation necessary to the functioning of the project for its purposes, if he has first notified the non -Federal interest of its failure to perform the terms of its agreement and has given such interest a reasonable time after such notification to so perform." All costs incurred by the Federal Government in performing O&M of the project that is the responsibility of the non -Federal interest will be reimbursed by the non -Federal interest. Provisions for this are included in Article IX of the project cooperation agreement. 3 General Procedures 3.1 Approved Regulations Regulations for operation and maintenance of local flood control projects have been prescribed by the Secretary of the Army in accordance with authority contained in the Code of Federal Regulations, Title 33 - Navigation and Navigable Waters, Chapter II - Corps of Engineers, Part 208 - Flood Control Regulations, Section 208.10 - Local Flood Protection Works; Maintenance and Operations of Structures and Facilities, hereinafter referred to as the "regulations". Relevant portions of the regulations are included in appendix B. 3.2 General Rules and Procedures General rules for operation and maintenance of local flood control works are given in paragraph 208.10(a) of the regulations. Most duties outlined are self- explanatory. Features requiring clarification for application to this project are covered in the following paragraphs. 3.3 Duties of the Superintendent (Reference paragraph 208.10(a)(2) of the regulations.) The City of Renton shall appoint a permanent committee consisting of or headed by an official designated as the Superintendent who shall have charge of the operation and maintenance of the project. Details of the Superintendent's duties are presented in the regulations. The Superintendent's general duties include training key personnel in maintenance and emergency operations of the project. The Superintendent shall ascertain that all his key people have read the portions of this manual pertaining to their duties. The Superintendent should have addresses and telephone numbers of all key people and a reasonable number of substitutes; key people should in turn have similar information regarding all the people who will assist them. The District Engineer, U.S. Army Corps of Engineers, Seattle, Washington, should be kept advised of the names of the Superintendent and of his committee at all times. Experience has shown the key people should include: • An assistant Superintendent to act in the absence of the Superintendent; and • A sufficient number of people trained to lead maintenance work and inspection of the project during and following any flood fighting operations, and to provide inspection and maintenance during low flow periods. 3.4 Trespass on Rights -of -way (Reference paragraph 208.10(a)(4) of the regulations.) The Superintendent shall not permit any encroachment or trespass upon project rights -of -way which will adversely affect efficient operation and maintenance of the project. 3.5 Improvements or Alterations (Reference paragraph 208.10(a)(5) of the regulations.) No improvements or alterations affecting the flood protective works shall be made without prior determination by the District Engineer, U.S. Army Corps of Engineers, Seattle, Washington, that such improvements or alterations will not adversely affect the function of the protective facilities. Drawings or prints of proposed changes and information concerning methods of construction shall be submitted to the District Engineer sufficiently in advance of the proposed construction to permit adequate time for study and consideration of the work. If approved, drawings or prints in duplicate, showing improvements or alterations as finally constructed, shall be furnished to the District Engineer after work is completed and added to the Operation and Maintenance Manual. Improvements and alterations are defined as non -maintenance activities. Actions necessary to eliminate threats to life and/or property in emergency situations may be taken in advance of approval of drawings and other information describing the corresponding alterations. 3.6 Annual Report (Reference paragraph 208.10(a)(6) of the regulations.) Submission of an annual report is required. Seattle District requests that local sponsors compile all inspection, maintenance, and operation information for the year into one submittal, with an additional report following each flood event. The annual report shall be submitted by 1 October each year to the District Engineer, U.S. Army corps of Engineers, Post Office Box 3755, Seattle, Washington, 98124-2255, ATTN: Emergency Management Branch. The report shall cover the inspection, maintenance, and operation of the protective works, including a chronological log of all operations and dated copies of inspection checklists made during the period of the report. An outline of the Superintendent's annual report to the District Engineer is shown in appendix C. The nature and date of repairs shall be included in this report. Other items and suggestions relative to public sentiment on the project, its effectiveness, and other allied subjects are considered desirable data for inclusion in this report. 3.7 Periodic Inspections (Reference paragraph 208.10(b)(1), (d)(1), and (h)(1) of the regulations.) Periodic inspections of the levee, drainage and bridge structures are required. Ideally, intervals between periodic inspections should not exceed 90 days. Inspections are required also at such intermediate times as may be necessary to ensure the best possible care of the flood protection project. Periodic inspections shall be made under the supervision of the Superintendent. The following times for conduct of periodic inspections of the levees and drainage structures are furnished for guidance: • prior to the beginning of flood season (1 October); • throughout the duration of high water events; • immediately following each high water period; • during the spring (March or April); • following repair or reconstruction of any portion of the project; • during extreme low flow conditions (15 August - 30 September); • intermediate times as necessary. 3.8 Surveys Surveys of the levees shall be made within 4 years after completion of the O&M manual, and at any time visual inspection indicates surveys are warranted to ensure detection of any settling of the levee. The City of Renton shall perform surveys. Surveys shall include levee top elevations to nearest .10 foot at 100- foot intervals along the centerline. Surveys of the channel shall be made annually by the City of Renton until the City is able to develop a prediction of sedimentation rates based on flow events. An abbreviated survey is acceptable if the winter flows do not warrant an all-inclusive survey. At the City's discretion, no survey is required if winter flows do not exceed 2500 CFS. After the City is comfortable with their methodology for predicting the need to dredge the river channel, the time between river channel surveys may be increased at the City's discretion. 3.9 Checklists The Superintendent shall prepare checklists covering all features of the project for use on each inspection to ensure that no feature of the protective works is overlooked. Items requiring maintenance shall be noted thereon. 3.10 Sequence of Operations Maximum discharge of the Cedar River normally occurs between October and March. Flood season in the Cedar River basin coincides with winter rain and spring snowmelt runoff. During the months of October through March, the Superintendent shall conduct inspections of personnel, equipment, and materials and shall hold practice drills as necessary to ensure immediate and efficient flood fighting operations as outlined in section 4 of this manual. Periods of low flow during the summer months shall be utilized to the fullest extent to inspect the project for possible flood damage and to accomplish necessary repairs and maintenance work. The Corps anticipates that Boeing will participate as stated in the Agreement between Renton and Boeing. 4 Operations During High Water Flow 4.1 General This section presents supplementary procedures that are applicable during high water periods. A high water period is defined as a Phase IV flood exceeding 4800 cubic feet per second (CFS) as measured at the Landsburg gage. While the operation of the project is the responsibility of the City of Renton, the Corps has accepted that the City has delegated the operation of the South Boeing Bridge to the Boeing Company. A copy of the agreement between the City and Boeing on the operation of the bridge is included in this document. It is the City's responsibility to verify that Boeing is operating the South Boeing Bridge in accordance with this manual. If Boeing does not operate the bridge in accordance with this manual, it is the City's responsibility to operate the bridge. 4.2 Procedures to be followed at Flood Stage Levee observations shall be made during flood events noting time, location or levee station, and water level (on the riverside of the levee). These observations shall be correlated with U.S. Geological Survey (USGS) gage readings and records of streamflow. When King County announces a Phase IV alert for the Cedar River, the Superintendent shall initiate the following steps: a. Locate necessary tools and materials that can readily be made available (quarry spalls, shovels, sandbags, etc.). b. Locate earth moving equipment and trucks that can be made available. C. Assign persons in shifts to provide 24-hour patrol of the levee and project area. Initially, these persons shall make a detailed inspection and report the condition of the project to the Superintendent. d. Assure that persons patrolling the levee are aware of any treed areas and any structures (such as bridge abutments and piers, and gabion walls) on the riverside of the levee, and that these structures and treed areas are inspected frequently to assure that debris is not collecting along or behind them. If debris does collect, it must be cleared immediately to decrease the possibility of damage to the levee. e. Make needed emergency repairs as quickly as possible -New Section Sandbag Locations To maintain 100-year protection with the design level of reliability, there are several locations along the right levee that will need to be sandbagged. The commencement of sandbagging activities will begin when the flow at the USGS Renton gage is forecast to exceed 9000 cfs. The sandbag locations are: 1. Station RT 10+00 to Station 14+70. Station RT 10+00 needs to be sandbagged to elevation 26.00 feet (currently elevation is about 24.8 feet) and Station 14+70 needs to be sandbagged to elevation 26.50 feet (currently elevation is about 26.00 feet). The minimum elevations between these two points should be linear. Note: all elevations specified in this section are referenced to the NAVD88 datum. 2. Station RT 14+70 and Station RT 19+00. Station 19+00 needs to be sandbagged to elevation 26.90 feet. The current elevation of this location is about 26.56 feet. The minimum elevations between Stations RT 14+70 and 19+00 should be linear. 3. Station RT 19+00 and Station RT 26+60. Station RT 26+60 meets the 90% reliability requirement. The minimum elevations between RT 19+00 and RT 26+60 should be linear. 4. At about Station RT 68+50 to upstream end of project. This is a location noted on the construction drawings for sandbagging. The protection elevation needs to be 37.70 feet at RT68+50 rising linearly to 38.00 feet at the upstream end of the project. The sandbag elevations specified are for a condition where the river channel has aggraded to the level of the "Allowable Bed". Discussed in 4.9.3. At locations where the channel is known to be below the allowable elevation, sandbag elevations could be reduced. Sandbagging efforts shall be mobilized when flows at Landsburg reach 3500 cfs and are predicted to increase. 4.3 Bridge Operation Each year the Superintendent shall develop a rating curve for the Cedar River at the South Boeing bridge and determine at what flow the river stage will reach the lower chord of the bridge. That flow will be called the "bridge flow". During any high flow event, the Superintendent shall monitor the flow in the river using either the USGS gage at Landsburg or by monitoring the King County flood warnings. If the Landsburg gage readings are not available, the Superintendent shall rely on the King County flood phase warning system. When the Landsburg gage indicates that the bridge flow has occurred, or when the King County flood phase IV is announced, the process to raise the bridge shall begin. At the time the Landsburg gage indicates that the bridge flow has occurred, the Superintendent will have about 4 hours to raise the bridge before that flow arrives at the bridge. The bridge must be raised before the water surface reaches the bottom of the bridge. In the event that the warning system described above fails, the bridge shall be raised if the water is within six inches of the bottom of the bridge. For as long as Boeing operates the bridge in accordance with the O&M manual for the bridge, the intent of this O&M program is met. The City is responsible to verify that Boeing's O&M program for the bridge is adequate, and to assume O&M responsibilities if it is not. The agreement between Renton and Boeing is included in Appendix C. 4.4 Levee Operation During flood periods, the levee shall be patrolled on an ongoing basis to locate possible sand boils, animal holes, or unusual wetness of the landward slope and to be certain that: • no indications of slides or sloughs are developing; • no wave wash or scouring actions are occurring; • no low reaches of levees exist which may be overtopped except where such overtopping is an intentional part of the project; and • no other conditions exist which might endanger the structure. Immediate steps will be taken to control any condition that endangers the levee and to repair the damaged section. 4.5 Closure Gate Operation As part of the Lower Cedar River Flood Control Project, closure gates were constructed at each end of the South Boeing Bridge. These closure gates were designed to operate in conjunction with raising the bridge during a flood. Each gate leaf is normally inside a concrete pocket wall on the north and south sides of the bridge, and rolled out across the bridge approach during a flood. This would be accomplished after the bridge is raised. The following is a description of the steps that were demonstrated during the operation test. These steps apply to each of the four gates leafs. 1. Remove the steel plates covering the rail trench. 2. Remove the galvanize steel blocking plate attached to the river side of the pocket wall. This plate is attached to stainless steel bolts embedded in the concrete pocket wall using stainless steel nuts. The plate is designed to block the gap between the pocket wall and the steel ribbed skin of the gate. The blocking plate is "stored" on the pocket wall by turning the plate so that the ribbed edge faces the river. 3. Once the blocking plate is removed, the gate can be pulled out of the pocket wall either manually, or by using a vehicle and towline. Normally, the gate can be pulled out manually. The gate rolls on a steel rail that is inset a trench in the concrete approach to the bridge. The gate should be rolled out to the center of the bridge until the stainless steel arrow welded on the bottom of the gate aligns with the stainless steel arrow welded on the top edge of the trench. 4. Once the gate is in location, a series of J-bolts located along the bottom of the gate must be lowered into position by loosening the lock nut. After lowering each J-bolt, turned it 901 so that the leg of the J-bolt engages in a corresponding slot cut in the rail web. Hold the J-bolt in this position and tighten the lock nut. 5. After all the J-bolts are tightened and the gate is secured to the rail, a series of nonadjustable struts are attached to the gate and anchored to the bridge approach using steel pins that are inserted into a hole in the concrete. A small square steel plate is welded to the one end of the steel pin. The pins are used to cover the holes in the concrete, when not used to secure the struts. NOTE: Each strut is a different length and cannot be interchanged. A number is painted on each strut corresponds to number painted to the attachment slot on the gate. The strut closest to the pocket wall is adjustable. There are two parts to the adjustable strut, which slide together and allow the strut to be either shortened or lengthened. The adjustable strut is used to hold the gate tight against the blocking plate, which is installed as described in the following step. 6. Attach the blocking plate to the end of the pocket wall using the stainless steel nuts. After the blocking plate is in place, adjust the strut to minimize the gap between the blocking plate and the face of the ribbed skin of the gate. The strut can be tightened by hand using the handles attached to the strut screw. 7. After one gate leaf is in place, pull the opposite gate leaf into place. A vertical steel angle on each gate leaf overlap. A rubber seal is attached to the steel angle one gate, and minimizes the flow of water between the ends of the gates. 8. After each gate leaf is in place, the J-bolts tightened, and the struts and blocking plates installed, place a row of sand bags along the bottom of the gate, on the river side. This will minimize water from flowing under the gate. 9. Reversing the procedures described above opens the gates. It is important to raise the J-bolts until the leg of each J-bolt is inside the bottom rail of the gate. Otherwise, the J-bolts rub against the side of the rail making it difficult to roll the gate into place. 4.6 Emergency Repairs Emergency repairs described in the following paragraphs may be required during high water stages. These repairs are independent of those that may be required as a result of routine inspections referred to in paragraphs 208.10(a)(2), (b)(1), (c)(1), and (h)(1) of the regulations (see appendix B). Repairs are to be made with semi -impervious to impervious material similar to that in the existing levee. 4.6.1 Degradation Levee bank failures are most likely where there are fluctuating water levels and high stream bank or levee erosion. The use of quarry spalls or larger rock, as required, is recommended to prevent further damage. If it is determined during the post -flood inspection that the emergency repairs were not adequate for bank stabilization, permanent repairs shall be made using materials of adequate size. Permanent repairs shall be coordinated with Seattle District, Corps of Engineers. 4.6.2 Seepage Ground seepage can be removed locally by pumping. The interior drainage watershed is small and capable of temporary ponding of any local storm water runoff. Existing interior drainage conditions do not require installation of permanent pumping facilities. New Section Debris Removal at Bridges At the onset of a flood event expected to approach the magnitude of the 100-year flood event; the bridges within the project, including the North Boeing Bridge, should be inspected for accumulated debris and such debris should be removed prior to the flood event. In addition, the bridges within the project should be inspected during a large flood event for the accumulation of debris at bridges that might impede the flow of water through said structures. Project Maintenance 4.7 Project Plans Location, sections, and details of the project are shown on the drawings at the end of this manual. 4.8 General Notes on Maintenance 4.8.1 Inspections Thorough inspection of project facilities before each flood season and after each flood is vital. Use of the Superintendent's checklist will ensure that no project feature is overlooked during inspection. 4.8.2 Utilities The location of water, sewer, electrical, and gas lines within the project limits shall be determined before any maintenance measures are taken or repairs are made. 4.8.3 Improvements Improvements shall be inspected to see that all construction is in accordance with standard engineering practice. Fences constructed across the levee must have a 16-foot wide vehicle gate to allow authorized vehicles to travel along the top of the levee as necessary. The City of Renton shall have their own locks on all gates and cables located on the levee ramps or the levee itself. All locks shall be keyed alike. A master key shall be made available to the Superintendent, another master key shall be deposited where it is available at any time to emergency or maintenance personnel, and a master key shall be provided to Seattle District, Corps of Engineers, Emergency Management Branch. Any improvements that might be expected to alter the 100-year surface elevations shall be brought to the attention of Seattle District, Corps of Engineers for evaluation. 4.8.4 Maintenance agreement with Boeing While the City of Renton is responsible for the maintenance of all project features, including the South Boeing Bridge, the Corps accepts the agreement between the City and the Boeing Company delegating maintenance of the bridge to the Boeing Company. For as long as Boeing maintains the bridge in accordance with the O&M manual for the bridge, the intent of this O&M program is met. The City is responsible to verify that Boeing's maintenance program for the bridge is adequate, and to assume maintenance responsibilities if it is not. The agreement between Renton and Boeing is included in Appendix C. 4.9 Specific Maintenance Procedures 4.9.1 Embankment Levee (Reference paragraph 208.10(b)(1) and (2) of the regulations. See appendix B.) The Superintendent shall provide at all times such maintenance as may be required to ensure serviceability of the structure in time of flood. Measures shall be taken to ensure, among other things, that: • A good growth of sod, substantially free of noxious weeds and invasive non- native plant species, is maintained where turf is indicated on the drawings; • All brush, trees and other growth which violate the criteria set forth in this Section are removed from the levee embankment (vegetation specifically planted or preserved by this project shall remain); • All animal burrows, when found, are backfilled with compacted material; • The levee is maintained free of debris and drift, and other encroachments such as buildings, structures, and refuse dumps; and Periodic inspections of the levee prism shall be made under the supervisions of the Superintendent to ensure that the above maintenance measures are being effectively carried out and further to be certain that: • No unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; • No revetment work or riprap has been displaced, washed out, or removed; • No action is taken which will retard or destroy the growth of sod, such as burning grass and weeds during inappropriate seasons and/or applying herbicides; and • No encroachments are being made on the levee rights -of -way which might endanger the structure or hinder its proper and efficient functioning during times of emergency. Immediate steps shall be taken to correct dangerous conditions disclosed by such inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. Vegetation on the levees shall be maintained as follows: • Grass or sod, where turf is indicated on the drawings, shall be maintained in good condition free of noxious weeds and invasive non-native species. Turf shall be mowed to maintain a length between 2 and 12 inches. • All existing trees or shrubs specifically preserved or planted within the rights - of -way for this project shall be inspected to ensure that fallen limbs or trunks are removed, that the top of the levee is unimpeded to vehicle passage, and that erosion of the riverward embankment in the root zones has not occurred. Dead vegetation shall be removed and replaced with suitable species when and where feasible. Vegetation on the riverward side of the levee system not specifically preserved for this project shall be managed by mowing or by selective cutting or pruning to maintain a maximum height of growth of less than 25 feet and a maximum individual stem diameter at 4 feet above the ground of approximately 4 inches. Woody vegetation is allowed on the levee slopes where the levee is overbuilt (i.e. the levee side slope is shallower than 1 on 2). When tree trunks become larger than 10 inches in diameter at breast height, then the trees would be considered for removal. Dead or uprooted trees must be removed if the trees could impact levee integrity. Shrubs and blackberries shall not be allowed to grow so thick in the levee slopes that they would obscure visual inspection of the levee. Please refer to EM 1110-2-301, Landscape planting on flood control structures", for guidance. 4.9.2 South Boeing Bridge Specific maintenance procedures for the South Boeing Bridge are beyond the scope of this manual. Renton is responsible for operation and maintenance as advised in the O&M manual that was prepared for the bridge. As the bridge is property of Boeing, and Boeing has agreed to operate and maintain the bridge, the Superintendent should satisfy himself that the Boeing Company is performing the maintenance and that the bridge is operational. For Boeing's agreement to maintain the bridge, see Appendix C. 4.9.3 River Channel The Superintendent shall obtain surveys of the river channel as indicated in Section 4, and shall have the river bottom excavated as needed to remove the gravel that will fill the channel. Each year, the Superintendent shall have a HEC- RAS model of the river's current conditions created to verify the level of protection. If the 100-year flow is not contained, proceed with excavation. If the 100-year flow is contained, then estimate the condition for the following year, and proceed with dredging if it is anticipated that the 100-year flow would not be contained in the following year. The Superintendent shall obtain surveys of the river channel as indicated in Section 3.8. These surveys shall be compared with the "Allowable Average Bed" shown in Figure 11 of the Northwest Hydraulic Consultants December 2001 report Lower Cedar River Sedimentation Analysis of Existing Data -Final Report. This figure is shown in Appendix E of this document. Note that elevations on this in are referenced to the NGVD1929 datum. This bed profile has been determined (with the sandbagging specified in Section 4.XX in place) to produce river stages within the project boundaries such that the right levee provides 100- year flood event protection with approximately 90% reliability. As the bed approaches the specified allowable elevation, anywhere within the project, provisions should be made for channel excavation to maintain the design level of protection. A HEC-RAS model shall be used to verify that any changes to the river channel and associated overbank areas do not have an adverse affect on the resulting water surface elevation and the ability of the project to contain the 100-year flood event. 4.9.4 Closure aates at the South Boeina Bridae The superintendent shall inspect the closure gates annually to verify that all parts are still present and in working order. All tools, equipment, and parts required to operate the gates shall be stored together. and shall be inventoried during each inspection. The Boeing Company has accepted responsibility for the South Boeing Bridge, as stated in the Renton -Boeing Agreement. See Appendix C. 5 Repair, Replacement, and Rehabilitation 5.1 Levee. Immediate steps will be taken to correct dangerous conditions disclosed by inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. 5.2 Drainage Structures. Immediate steps will be taken to repair damage, replace missing or broken parts, or remedy adverse conditions disclosed by inspections. 5.3 TideFlex Check Valves. The valve should be opened utilizing smooth instruments without scouring or abrading the sides of the valve lip. Debris can then be removed without damage to the valve sides. 6 Outline of Annual Report 6.1 General a. Date inspection made. b. Name and official capacities of persons making the inspection. 6.2 Earthfill Levee a. General condition of levee and stream bank riverward of setback levee. b. Erosion or piping. C. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.3 River Channel a. Date of survey, and summary of HEC-RAS modeling results. a. Date of survey, survey results (channel geometry, and summary of any hydraulic modeling results. 6.4 South Boeing Bridge a. Condition of bridge, including truck and equipment on truck. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.5 Closure Gates a. Condition of gates, rails, and braces. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.6 Culvert Tideflex Valve a. Condition of culvert and Tideflex Valve attachment. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.7 Landscaping a. Condition of plants and project area. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.8 Conditions During Flood Period In the first annual report following a flood period, the Superintendent shall give a complete chronological log of operations accomplished before, during, and after the flood period, relating particularly to the following items: a. Inspections made immediately prior to the flood, during the flood, and after the flood. b. The continual patrolling of the project during flood periods and a record of events occurring during the flood. C. Record of water levels during the flood. d. Adequacy of personnel and equipment employed during the flood, and detailed information on any deficiencies. Appendix A: Project Cooperation Agreement Appendix B: Flood Control Regulations Appendix C: Agreement between The City of Renton and The Boeing Company Appendix D: the WEST Report S A Wrg*,WSELof Lake Washitqto 10- 4' 1 2 3 4 a 6 7 LEGEND NOTES: Distance above Lake Washirdon TW of L4 Levee Vulaki surfaIr, llas been ramau Top DI Right Levee AlowaLle 100. yr WES Low Chom Avefagk, Rec. Pruriles AllowablP AvefaqA Bed we . t-xs overtopprig the overtle w section (top c and 33001) ---------- COE - I 00-yt WS COG - AflowaMe Bed 9.55 USCOE Crass SeMltl Ntnbaring =MW ------------- 1198 (Post Oreage) Average Bed (055) N141C Cross Section Nurneft catmeritm tlie :)rcv:,,u,3 "'GE: study, 2001 Average Bed aE Cedar River at Renton Flood Damage Reduction Project Operation and Maintenance Manual __-._A. HuyUbL5 «ruc F , 1 INTRODUCTION 4 1.1 Project Description.......................................................................................................................4 1.2 Authorization................................................................................................................................4 1.3 Location.........................................................................................................................................4 1.4 Project Purpose.............................................................................................................................4 1.5 Construction History ....................................................................................................................5 2 PROJECT COOPERATION AGREEMENT 6 2.1 Responsibility of Local Interests..................................................................................................6 2.2 Failure of Non -Federal Interests to Operate and Maintain......................................................6 3 GENERAL PROCEDURES 7 3.1 Approved Regulations..................................................................................................................7 3.2 General Rules and Procedures.....................................................................................................7 3.3 Duties of the Superintendent........................................................................................................7 3.4 Trespass on Rights-of-way...........................................................................................................7 3.5 Improvements or Alterations.......................................................................................................8 3.6 Annual Report...............................................................................................................................8 3.7 Periodic Inspections......................................................................................................................8 3.8 Surveys...........................................................................................................................................9 3.9 Checklists.......................................................................................................................................9 3.10 Sequence of Operations................................................................................................................9 4 OPERATIONS DURING HIGH WATER FLOW 10 4.1 General.........................................................................................................................................10 4.2 Procedures to be followed at Flood Stage.................................................................................10 4.3 Bridge Operation........................................................................................................................10 4.4 Levee Operation..........................................................................................................................11 4.5 Closure Gate Operation..............................................................................................................11 4.6 Emergency Repairs.....................................................................................................................13 5 PROJECT MAINTENANCE 14 5.1 Project Plans................................................................................................................................14 5.2 General Notes on Maintenance..................................................................................................14 5.3 Specific Maintenance Procedures..............................................................................................15 6 REPAIR, REPLACEMENT, AND REHABILITATION 17 6.1 Levee............................................................................................................................................17 6.2 Drainage Structures....................................................................................................................17 6.3 TideFex Check Valves...............................................................................................................17 7 OUTLINE OF ANNUAL REPORT 18 7.1 General.........................................................................................................................................18 7.2 Earthfill Levee.............................................................................................................................18 7.3 River Channel..............................................................................................................................18 7.4 South Boeing Bridge...................................................................................................................18 7.5 Closure Gates..............................................................................................................................18 7.6 Culvert Tideflex Valve................................................................................................................18 7.7 Landscaping.................................................................................................................................18 7.8 Conditions During Flood Period................................................................................................18 Appendix A: Project Cooperation Agreement Appendix B: Flood Control Regulations Appendix C: Agreement between The City of Renton and The Boeing Company Appendix D: the WEST Report Appendix E: As -Built Drawings for Levees and Floodwalls, dated 98DEC03 Introduction 1.1 Proiect Description The project consists of levees and floodwalls along both banks of the river, a section of PCC curb wall, and a channel deepened by excavation. Levee sections are minimum 8'-0" wide on top, with 2H:1V or shallower slopes. Some sections of the levee are wider, with a road on top, and some sections in the park are wider with more gradual slopes. The left bank levee from station 0+00 to about station 19+00 is designed to overtop in events greater than the design event, to prevent other areas from overtopping. The floodwalls are steel sheetpile below ground, concrete wall above ground. The sheetpile wall is located on the left bank, from about station 19+00 to about station 29+50, and again on the left bank from about 35+00 to 38+00, and again on the left bank from station 40+00 to 55+50. On the right bank, from about station 68+00 to about 73+80, protection is provided by a PCC curb wall. In addition to the levees and floodwalls, the project includes mitigation features. The mitigation features are the groundwater side -channel and the revetment at the Maplewood golf course, the Landsburg gravel supplementation, lighting reduction at the Boeing plant, riparian plantings along the lower river, tide flex valves at outfalls along the lower river, and the Elliott rearing/spawning channel. 1.2 Authorization The Cedar River at Renton Flood Damage Reduction Project was constructed under authority of Section 205 of the 1948 Flood control Act, as amended, and subject to local cooperation as set forth in Section 3 of the Flood Control Act of 1936, Public Law 738 as modified be Section 103 of the water Resources Development Act (WRDA) of 1986, Public Law 99-662. 1.3 Location The project area is the lower 1-'/4 miles of the Cedar River in the City of Renton, located in King County, Washington, immediately southeast of the City of Seattle. The Cedar River drainage basin is located southeast of Seattle, Washington, and lies entirely within the boundaries of King County. The basin is approximately 40 miles long, has a maximum width of 10 miles, and drains 188 square miles into Lake Washington at Renton. 1.4 Project Purpose The project is designed to provide protection from the 100-year flood. The project protects portions of downtown Renton, including the Boeing plant and the Renton airport. 1.5 Construction History The river excavation was performed by equipment rental method, using equipment hired from Gary Merlino Construction, Seattle, WA, and DKR Construction Inc, Union Gap, WA. The levee construction was performed by Ceccanti Corp. of Spanaway, ashington. - - - - - DATE EVENT April 1998 River excavation construction contract advertised May 1998 PCA executed June 1998 River excavation construction contract awarded June 1998 River excavation construction initiated August 1998 River excavation completed December 1998 Levee contract advertised March 1999 Levee contract awarded April 1999 Levee construction initiated November 1999 Levee construction complete December 2000 Flood control complete, transferred to local sponsor 2 Project Cooperation Agreement The Corps of Engineers and the City of Renton have entered into a PCA for this project on May 9, 1998, as required by Public Law (99-662). A copy of the duly executed PCA is included as Appendix A of the Manual. 2.1 Responsibility of Local Interests The responsibility of local interests is defined by Section 3 of the Flood Control Act approved 22 June 1936, Public Law 738 as modified by Section 103 of the WRDA approved 19 November 1986. The project cooperation agreement (appendix A) signed by the City of Renton on 9 May 1998, in accordance with Public Law 738, lists the following responsibilities of the City of Renton. • Accomplish normal items of cooperation listed in article II paragraphs a through j of the project cooperation agreement. • Assume full responsibility for all project costs in excess of Federal cost limitation $5 million as provided in Section 915(a) of the Water Resources Development Act of 1986 (Public Law 99-662, approved 17 November 1986). • Comply with Civil Rights, Uniform Relocation Assistance and Real Property Acquisition regulations as described in Article III paragraph d of the project cooperation agreement. • Guarantee the Government reasonable access to the project for the purpose of inspection and, if necessary, operating, repairing, and maintaining the project. 2.2 Failure of Non -Federal Interests to Operate and Maintain In accordance with Paragraph d, Section 221 of Public Law 91-661, "The Chief of Engineers may undertake performance of those items of cooperation necessary to the functioning of the project for its purposes, if he has first notified the non -Federal interest of its failure to perform the terms of its agreement and has given such interest a reasonable time after such notification to so perform." All costs incurred by the Federal Government in performing O&M of the project that is the responsibility of the non -Federal interest will be reimbursed by the non -Federal interest. Provisions for this are included in Article IX of the project cooperation agreement. 3 General Procedures 3.1 Approved Regulations Regulations for operation and maintenance of local flood control projects have been prescribed by the Secretary of the Army in accordance with authority contained in the Code of Federal Regulations, Title 33 - Navigation and Navigable Waters, Chapter II - Corps of Engineers, Part 208 - Flood Control Regulations, Section 208.10 - Local Flood Protection Works; Maintenance and Operations of Structures and Facilities, hereinafter referred to as the "regulations". Relevant portions of the regulations are included in appendix B. 3.2 General Rules and Procedures General rules for operation and maintenance of local flood control works are given in paragraph 208.10(a) of the regulations. Most duties outlined are self- explanatory. Features requiring clarification for application to this project are covered in the following paragraphs. 3.3 Duties of the Superintendent (Reference paragraph 208.10(a)(2) of the regulations.) The City of Renton shall appoint a permanent committee consisting of or headed by an official designated as the Superintendent who shall have charge of the operation and maintenance of the project. Details of the Superintendent's duties are presented in the regulations. The Superintendent's general duties include training key personnel in maintenance and emergency operations of the project. The Superintendent shall ascertain that all his key people have read the portions of this manual pertaining to their duties. The Superintendent should have addresses and telephone numbers of all key people and a reasonable number of substitutes; key people should in turn have similar information regarding all the people who will assist them. The District Engineer, U.S. Army Corps of Engineers, Seattle, Washington, should be kept advised of the names of the Superintendent and of his committee at all times. Experience has shown the key people should include: • An assistant Superintendent to act in the absence of the Superintendent; and • A sufficient number of people trained to lead maintenance work and inspection of the project during and following any flood fighting operations, and to provide inspection and maintenance during low flow periods. 3.4 Trespass on Rights -of -way (Reference paragraph 208.10(a)(4) of the regulations.) The Superintendent shall not permit any encroachment or trespass upon project rights -of -way which will adversely affect efficient operation and maintenance of the project. 3.5 Improvements or Alterations (Reference paragraph 208.10(a)(5) of the regulations.) No improvements or alterations affecting the flood protective works shall be made without prior determination by the District Engineer, U.S. Army Corps of Engineers, Seattle, _ _Washington, that such improvements or alterations will not adversely affect the function of the protective facilities. D-rawmgs or prints of proposed changes and — - -- information concerning methods of construction shall be submitted to the District Engineer sufficiently in advance of the proposed construction to permit adequate time for study and consideration of the work. If approved, drawings or prints in duplicate, showing improvements or alterations as finally constructed, shall be furnished to the District Engineer after work is completed and added to the Operation and Maintenance Manual. Improvements and alterations are defined as non -maintenance activities. Actions necessary to eliminate threats to life and/or property in emergency situations may be taken in advance of approval of drawings and other information describing the corresponding alterations. 3.6 Annual Report (Reference paragraph 208.10(a)(6) of the regulations.) Submission of an annual report is required. Seattle District requests that local sponsors compile all inspection, maintenance, and operation information for the year into one submittal, with an additional report following each flood event. The annual report shall be submitted by 1 January each year to the District Engineer, U.S. Army corps of Engineers, Post Office Box 3755, Seattle, Washington, 98124-2255, ATTN: Emergency Management Branch. The report shall cover the inspection, maintenance, and operation of the protective works, including a chronological log of all operations and dated copies of inspection checklists made during the period of the report. An outline of the Superintendent's annual report to the District Engineer is shown in appendix C. The nature and date of repairs shall be included in this report. Other items and suggestions relative to public sentiment on the project, its effectiveness, and other allied subjects are considered desirable data for inclusion in this report. 3.7 Periodic Inspections (Reference paragraph 208.10(b)(1), (d)(1), and (h)(1) of the regulations.) Periodic inspections of the levee, drainage and bridge structures are required. Ideally, intervals between periodic inspections should not exceed 90 days. Inspections are required also at such intermediate times as may be necessary to ensure the best possible care of the flood protection project. Periodic inspections shall be made under the supervision of the Superintendent. The following times for conduct of periodic inspections of the levees and drainage structures are furnished for guidance: • prior to the beginning of flood season (1 October); • throughout the duration of high water events; • immediately following each high water period; • during the spring (March or April); following repair or reconstruction of any portion of the project; during extreme low flow conditions (15 August - 30 September); intermediate times as necessary. 3.8 Surveys Surveys of the levees shall be made within 4 years after completion of the O&M manual, and at any time visual inspection indicates surveys are warranted to ensure detection of any settling of the levee. The City of Renton shall perform surveys. Surveys shall include levee top elevations to nearest .10 foot at 100- foot intervals along the centerline. Surveys of the channel shall be made annually by the City of Renton until the City is able to develop a prediction of sedimentation rates based on flow events. An abbreviated survey is acceptable if the winter flows do not warrant an all-inclusive survey. At the City's discretion, no survey is required if winter flows do not exceed 2500 CFS. After the City is comfortable with their methodology for predicting the need to dredge the river channel, the time between river channel surveys may be increased at the City's discretion. 3.9 Checklists The Superintendent shall prepare checklists covering all features of the project for use on each inspection to ensure that no feature of the protective works is overlooked. Items requiring maintenance shall be noted thereon. 3.10 Sequence of Operations Maximum discharge of the Cedar River normally occurs between October and March. Flood season in the Cedar River basin coincides with winter rain and spring snowmelt runoff. During the months of October through March, the Superintendent shall conduct inspections of personnel, equipment, and materials and shall hold practice drills as necessary to ensure immediate and efficient flood fighting operations as outlined in section 4 of this manual. Periods of low flow during the summer months shall be utilized to the fullest extent to inspect the project for possible flood damage and to accomplish necessary repairs and maintenance work. The Corps anticipates that Boeing will participate as stated in the Agreement between Renton and Boeing. 4 Operations During High Water Flow 4.1 General This section presents supplementary procedures that are applicable during high water periods. A high water period is defined as a Phase IV flood exceeding 4800 cubic feet per second (CFS) as measured at the Landsburg gage. While the operation of the project is the responsibility of the City of Renton, the Corps has accepted that the City has delegated the operation of the South Boeing Bridge to the Boeing Company. A copy of the agreement between the City and Boeing on the operation of the bridge is included in this document. It is the City's responsibility to verify that Boeing is operating the South Boeing Bridge in accordance with this manual. If Boeing does not operate the bridge in accordance with this manual, it is the City's responsibility to operate the bridge. 4.2 Procedures to be followed at Flood Stage Levee observations shall be made during flood events noting time, location or levee station, and water level (on the riverside of the levee). These observations shall be correlated with U.S. Geological Survey (USGS) gage readings and records of streamflow. When King County announces a Phase IV alert for the Cedar River, the Superintendent shall initiate the following steps: a. Locate necessary tools and materials that can readily be made available (quarry spalls, shovels, sandbags, etc.). b. Locate earth moving equipment and trucks that can be made available. C. Assign persons in shifts to provide 24-hour patrol of the levee and project area. Initially, these persons shall make a detailed inspection and report the condition of the project to the Superintendent. d. Assure that persons patrolling the levee are aware of any treed areas and any structures (such as bridge abutments and piers, and gabion walls) on the riverside of the levee, and that these structures and treed areas are inspected frequently to assure that debris is not collecting along or behind them. If debris does collect, it must be cleared immediately to decrease the possibility of damage to the levee. e. Make needed emergency repairs as quickly as possible. 4.3 Bridge Operation Each year the Superintendent shall develop a rating curve for the Cedar River at the South Boeing bridge and determine at what flow the river stage will reach the lower chord of the bridge. That flow will be called the "bridge flow". During any high flow event, the Superintendent shall monitor the flow in the river using either the USGS gage at Landsburg or by monitoring the King County flood warnings. If the Landsburg gage readings are not available, the Superintendent shall rely on the King County flood phase warning system. When - --- ---thetandsburg-gage-indicates that -the bridge-flow-has-oeeu-irred, or whey; he -- King County flood phase IV is announced, the process to raise the bridge shall begin. At the time the Landsburg gage indicates that the bridge flow has occurred, the Superintendent will have about 4 hours to raise the bridge before that flow arrives at the bridge. The bridge must be raised before the water surface reaches the bottom of the bridge. In the event that the warning system described above fails, the bridge shall be raised if the water is within six inches of the bottom of the bridge. For as long as Boeing operates the bridge in accordance with the O&M manual for the bridge, the intent of this O&M program is met. The City is responsible to verify that Boeing's O&M program for the bridge is adequate, and to assume O&M responsibilities if it is not. The agreement between Renton and Boeing is included in Appendix C. 4.4 Levee Operation During flood periods, the levee shall be patrolled on an ongoing basis to locate possible sand boils, animal holes, or unusual wetness of the landward slope and to be certain that: • no indications of slides or sloughs are developing; • no wave wash or scouring actions are occurring; • no low reaches of levees exist which may be overtopped except where such overtopping is an intentional part of the project; and • no other conditions exist which might endanger the structure. Immediate steps will be taken to control any condition that endangers the levee and to repair the damaged section. 4.5 Closure Gate Operation As part of the Lower Cedar River Flood Control Project, closure gates were constructed at each end of the South Boeing Bridge. These closure gates were designed to operate in conjunction with raising the bridge during a flood. Each gate leaf is normally inside a concrete pocket wall on the north and south sides of the bridge, and rolled out across the bridge approach during a flood. This would be accomplished after the bridge is raised. The following is a description of the steps that were demonstrated during the operation test. These steps apply to each of the four gates leafs. 1. Remove the steel plates covering the rail trench. 2. Remove the galvanize steel blocking plate attached to the river side of the pocket wall. This plate is attached to stainless steel bolts embedded in the concrete-pocke taintessstee�nuts.The-piate-is-designed-tom block the gap between the pocket wall and the steel ribbed skin of the gate. The blocking plate is "stored" on the pocket wall by turning the plate so that the ribbed edge faces the river. 3. Once the blocking plate is removed, the gate can be pulled out of the pocket wall either manually, or by using a vehicle and towline. Normally, the gate can be pulled out manually. The gate rolls on a steel rail that is inset a trench in the concrete approach to the bridge. The gate should be rolled out to the center of the bridge until the stainless steel arrow welded on the bottom of the gate aligns with the stainless steel arrow welded on the top edge of the trench. 4. Once the gate is in location, a series of J-bolts located along the bottom of the gate must be lowered into position by loosening the lock nut. After lowering each J-bolt, turned it 900 so that the leg of the J-bolt engages in a corresponding slot cut in the rail web. Hold the J-bolt in this position and tighten the lock nut. 5. After all the J-bolts are tightened and the gate is secured to the rail, a series of nonadjustable struts are attached to the gate and anchored to the bridge approach using steel pins that are inserted into a hole in the concrete. A small square steel plate is welded to the one end of the steel pin. The pins are used to cover the holes in the concrete, when not used to secure the struts. NOTE: Each strut is a different length and cannot be interchanged. A number is painted on each strut corresponds to number painted to the attachment slot on the gate. The strut closest to the pocket wall is adjustable. There are two parts to the adjustable strut, which slide together and allow the strut to be either shortened or lengthened. The adjustable strut is used to hold the gate tight against the blocking plate, which is installed as described in the following step. 6. Attach the blocking plate to the end of the pocket wall using the stainless steel nuts. After the blocking plate is in place, adjust the strut to minimize the gap between the blocking plate and the face of the ribbed skin of the gate. The strut can be tightened by hand using the handles attached to the strut screw. 7. After one gate leaf is in place, pull the opposite gate leaf into place. A vertical steel angle on each gate leaf overlap. A rubber seal is attached to the steel angle one gate, and minimizes the flow of water between the ends of the gates. 8. After each gate leaf is in place, the J-bolts tightened, and the struts and blocking plates installed, place a row of sand bags along the bottom of the gate, on the river side. This will minimize water from flowing under the gate. 9. Reversing the procedures described above opens the gates. It is important to raise the J-bolts until the leg of each J-bolt is inside the bottom rail of the gate. Otherwise, the J-bolts rub against the side of the rail making it difficult to roll the gate into place. 4.6 Emergency Repairs Emergency repairs described in the following paragraphs may be required during high water stages. These repairs are independent of those that may be required as a result of routine inspections referred to in paragraphs 208.10(a)(2), (b)(1), (c)(1), and (h)(1) of the regulations (see appendix B). Repairs are to be made with semi -impervious to impervious material similar to that in the existing levee. 4.6.1 Degradation Levee bank failures are most likely where there are fluctuating water levels and high stream bank or levee erosion. The use of quarry spalls or larger rock, as required, is recommended to prevent further damage. If it is determined during the post -flood inspection that the emergency repairs were not adequate for bank stabilization, permanent repairs shall be made using materials of adequate size. Permanent repairs shall be coordinated with Seattle District, Corps of Engineers. 4.6.2 Seepage Ground seepage can be removed locally by pumping. The interior drainage watershed is small and capable of temporary ponding of any local storm water runoff. Existing interior drainage conditions do not require installation of permanent pumping facilities. 5 Project Maintenance 5.1 Proiect Plans Location, sections, and details of the project are shown on the drawings at the end of this manual. 5.2 General Notes on Maintenance 5.2.1 Inspections Thorough inspection of project facilities before each flood season and after each flood is vital. Use of the Superintendent's checklist will ensure that no project feature is overlooked during inspection. 5.2.2 Utilities The location of water, sewer, electrical, and gas lines within the project limits shall be determined before any maintenance measures are taken or repairs are made. 5.2.3 Improvements Improvements shall be inspected to see that all construction is in accordance with standard engineering practice. Fences constructed across the levee must have a 16-foot wide vehicle gate to allow authorized vehicles to travel along the top of the levee as necessary. The City of Renton shall have their own locks on all gates and cables located on the levee ramps or the levee itself. All locks shall be keyed alike. A master key shall be made available to the Superintendent, another master key shall be deposited where it is available at any time to emergency or maintenance personnel, and a master key shall be provided to Seattle District, Corps of Engineers, Emergency Management Branch. 5.2.4 Maintenance agreement with Boeing While the City of Renton is responsible for the maintenance of all project features, including the South Boeing Bridge, the Corps accepts the agreement between the City and the Boeing Company delegating maintenance of the bridge to the Boeing Company. For as long as Boeing maintains the bridge in accordance with the O&M manual for the bridge, the intent of this O&M program is met. The City is responsible to verify that Boeing's maintenance program for the bridge is adequate, and to assume maintenance responsibilities if it is not. The agreement between Renton and Boeing is included in Appendix C. 5.3 Specific Maintenance Procedures 5.3.1 Embankment Levee (Reference paragraph 208.10(b)(1) and (2) of the regulations. See appendix B.) The Superintendent shall provide at all times such maintenance as may be required to ensure serviceability of the structure in time of flood. Measures shall be taken to ensure, among other things, that: • A good growth of sod, substantially free of noxious weeds and invasive non- native plant species, is maintained where turf is indicated on the drawings; • All brush, trees and other growth which violate the criteria set forth in this Section are removed from the levee embankment (vegetation specifically planted or preserved by this project shall remain); • All animal burrows, when found, are backfilled with compacted material; • The levee is maintained free of debris and drift, and other encroachments such as buildings, structures, and refuse dumps; and Periodic inspections of the levee prism shall be made under the supervisions of the Superintendent to ensure that the above maintenance measures are being effectively carried out and further to be certain that: • No unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; • No revetment work or riprap has been displaced, washed out, or removed; • No action is taken which will retard or destroy the growth of sod, such as burning grass and weeds during inappropriate seasons and/or applying herbicides; and • No encroachments are being made on the levee rights -of -way which might endanger the structure or hinder its proper and efficient functioning during times of emergency. Immediate steps shall be taken to correct dangerous conditions disclosed by such inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. Vegetation on the levees shall be maintained as follows: • Grass or sod, where turf is indicated on the drawings, shall be maintained in good condition free of noxious weeds and invasive non-native species. Turf shall be mowed to maintain a length between 2 and 12 inches. • All existing trees or shrubs specifically preserved or planted within the rights - of -way for this project shall be inspected to ensure that fallen limbs or trunks are removed, that the top of the levee is unimpeded to vehicle passage, and that erosion of the riverward embankment in the root zones has not occurred. Dead vegetation shall be removed and replaced with suitable species when and where feasible. • Vegetation on the riverward side of the levee system not specifically preserved for this project shall be managed by mowing or by selective cutting or pruning to maintain a maximum height of growth of less than 25 feet and a maximum individual stem diameter at 4 feet above the ground of approximately 4 inches. • Woody vegetation is allowed on the levee slopes where the levee is overbuilt (i.e. the levee side slope is shallower than 1 on 2). When tree trunks become larger than 10 inches in diameter at breast height, then the trees would be considered for removal. Dead or uprooted trees must be removed if the trees could impact levee integrity. Shrubs and blackberries shall not be allowed to grow so thick in the levee slopes that they would obscure visual inspection of the levee. Please refer to EM 1110-2-301, Landscape planting on flood control structures", for guidance. 5.3.2 South Boeing Bridge Specific maintenance procedures for the South Boeing Bridge are beyond the scope of this manual. Renton is responsible for operation and maintenance as advised in the O&M manual that was prepared for the bridge. As the bridge is property of Boeing, and Boeing has agreed to operate and maintain the bridge, the Superintendent should satisfy himself that the Boeing Company is performing the maintenance and that the bridge is operational. For Boeing's agreement to maintain the bridge, see Appendix C. 5.3.3 River Channel The Superintendent shall obtain surveys of the river channel as indicated in Section 4, and shall have the river bottom excavated as needed to remove the gravel that will fill the channel. Each year, the Superintendent shall have a HEC- RAS model of the river's current conditions created to verify the level of protection. If the 100-year flow is not contained, proceed with excavation. If the 100-year flow is contained, then estimate the condition for the following year, and proceed with dredging if it is anticipated that the 100-year flow would not be contained in the following year. 5.3.4 Closure gates at the South Boeing Bridge The superintendent shall inspect the closure gates annually to verify that all parts are still present and in working order. All tools, equipment, and parts required to operate the gates shall be stored together, and shall be inventoried during each inspection. The Boeing Company has accepted responsibility for the South Boeing Bridge, as stated in the Renton -Boeing Agreement. See Appendix C. 6 Repair, Replacement, and Rehabilitation 6.1 Levee. Immediate steps will be taken to correct dangerous conditions disclosed by inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. 6.2 Drainage Structures. Immediate steps will be taken to repair damage, replace missing or broken parts, or remedy adverse conditions disclosed by inspections. 6.3 TideFlex Check Valves. The valve should be opened utilizing smooth instruments without scouring or abrading the sides of the valve lip. Debris can then be removed without damage to the valve sides. 7 Outline of Annual Report 7.1 General a. Date inspection made. b. Name and official capacities of persons making the inspection. 7.2 Earthfill Levee a. General condition of levee and stream bank riverward of setback levee. b. Erosion or piping. C. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.3 River Channel a. Date of survey, and summary of HEC-RAS modeling results. 7.4 South Boeing Bridge a. Condition of bridge, including truck and equipment on truck. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.5 Closure Gates a. Condition of gates, rails, and braces. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.6 Culvert Tideflex Valve a. Condition of culvert and Tideflex Valve attachment. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.7 Landscaping a. Condition of plants and project area. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.8 Conditions During Flood Period In the first annual report following a flood period, the Superintendent shall give a complete chronological log of operations accomplished before, during, and after the flood period, relating particularly to the following items: a. Inspections made immediately prior to the flood, during the flood, and after the flood. b. The continual patrolling of the project during flood periods and a record of events occurring during the flood. C. Record of water levels during the flood. d. Adequacy of personnel and equipment employed during the flood, and detailed information on any deficiencies. Appendix A: Project Cooperation Agreement CAG-98-064 MODEL PROJECT COOPERATION AGREEMENT FOR SECTION 205 STRUCTURAL FLOOD CONTROL PROJECTS PROJECT COOPERATION AGREEMENT BETWEEN THE DEPARTMENT OF THE ARMY AND THE CITY OF RENTON, WASHINGTON FOR CONSTRUCTION OF THE CEDAR RIVER FLOOD DAMAGE REDUCTION PROJECT Th THIS AGREEMENT is entered into this day of a , 1998, by and between the DEPARTMENT OF THE ARMY (hereinafter the "Government"), represented by the U.S. Army Engineer for the Seattle District (hereinafter the "District Engineer") and the City of Renton, Washington, (hereinafter the "Non -Federal Sponsor) represented by the Mayor. WITNESSETH, THAT: WHEREAS, the Cedar River Flood Damage Reduction Project at Renton, Washington, (hereinafter the "Project") was approved for construction by CENWD-ET- P approval of 31g14 $ pursuant to the authority contained in Section 205 of the Flood Control Act of 1948, as amended, 33 U.S.C. 701s; WHEREAS, the Government and the Non -Federal Sponsor desire to enter into a Project Cooperation Agreement for construction of the Project, as defined in Article I.A. of this Agreement; WHEREAS, Section 103 (a) of the Water Resources Development Act of 1986, Public Law 99-662, as amended, specifies the cost -sharing requirements applicable to the Project; WHEREAS, under Section 205 of the Flood Control Act of 1948, as amended, the Government may expend up to $5,000,000 on a single flood control project; WHEREAS, Section 221 of the Flood Control Act of 1970, Public Law 91-611, as amended, and Section 103 of the Water Resources Development Act of 1986, Public Law 99-662, as amended, provide that the Secretary of the Army shall not commence construction of any water resources project, or separable element thereof, until each non -Federal sponsor has entered into a written agreement to furnish its required cooperation for the project or separable element; WHEREAS, the Non -Federal Sponsor does not qualify for a reduction of the maximum Non -Federal cost share pursuant to the guidelines that implement Section 103(m) of the Water Resources Development Act of 1986, Public Law 99-662, as amended; WHEREAS, the Government and Non -Federal Sponsor have the full authority and capability to perform as hereinafter set forth and intend to cooperate in cost - sharing and financing of the construction of the Project in accordance with the terms of this Agreement. NOW, THEREFORE, the Government and the Non -Federal Sponsor agree as follows: ARTICLE I -- DEFINITIONS AND GENERAL PROVISIONS For purposes of this Agreement: A. The term "Project" shall mean construction of one and one -quarter miles of levees and floodwalls along each bank of the Cedar River, Federal dredging of one and one -quarter miles off the river during initial construction to a depth of approximately four (4) feet, and construction of a spawing channel as generally described in the Cedar River, Renton, Washington, Flood Damage Reduction Study Detailed Project Report of January 14, 1998, approved by the Assistant Secretary of the Army (Civil Works) / Chief of Engineers on February 5, 1998. B. The term "total project costs" shall mean all costs incurred by the Non - Federal Sponsor and the Government in accordance with the terms of this Agreement directly related to construction of the Project. Subject to the provisions of this Agreement, the term shall include, but is not necessarily limited to: engineering and design costs during the preparation of contract plans and specifications; engineering and design costs during construction; the costs of investigations to identify the existence and extent of hazardous substances in accordance with Article XV.A. of this Agreement; costs of historic preservation activities in accordance with Article XVIII.A. of this Agreement; actual construction costs, including the costs of alteration, lowering, raising, or replacement and attendant removal of existing railroad bridges and approaches thereto; supervision and administration costs; costs of participation in the Project Coordination Team in accordance with Article V of this Agreement; costs of contract dispute settlements or awards; the value of lands, easements, rights -of - way, relocations, and suitable borrow and dredged or excavated material disposal areas for which the Government affords credit in accordance with Article IV of this Agreement; and costs of audit in accordance with Article X of this Agreement. The term does not include any costs for operation, maintenance, repair, replacement, or CED205.PCA 3/12/98 7:34 AM rehabilitation; any costs due to betterments; or any costs of dispute resolution under Article VII of this Agreement. C. The term "financial obligation for construction" shall mean a financial obligation of the Government, other than an obligation pertaining to the provision of lands, easements, rights -of -way, relocations, and borrow and dredged or excavated material disposal areas, that results or would result in a cost that is or would be included in total project costs. D. The term "Non -Federal proportionate share" shall mean the ratio of the Non - Federal Sponsor's total cash contribution required in accordance with Articles II.D.1. and II.D.3. of this Agreement to total financial obligations for construction, as projected by the Government. E. The term "period of construction" shall mean the time from the date the Government first notifies the Non -Federal Sponsor in writing, in accordance with Article VI.B. of this Agreement, of the scheduled date for issuance of the solicitation for the first construction contract to the date that the District Engineer notifies the Non -Federal Sponsor in writing of the Government's determination that construction of the Project is complete. F. The term "highway" shall mean any public highway, roadway, street, or way, including any bridge thereof. G. The term "relocation" shall mean providing a functionally equivalent facility to the owner of an existing utility, cemetery, highway or other public facility, or railroad (excluding existing railroad bridges and approaches thereto) when such action is authorized as between the Non -Federal Sponsor and the Facility owner in accordance with applicable, legal principles of just compensation. Providing a functionally equivalent facility may take the form of alteration, lowering, raising, or replacement and attendant removal of the affected facility or part thereof. H. The term "fiscal year" shall mean one fiscal year of the Government. The Government fiscal year begins on October 1 and ends on September 30. I. The term "functional portion of the Project" shall mean a portion of the Project that is suitable for tender to the Non -Federal Sponsor to operate and maintain in advance of completion of the entire Project. For a portion of the Project to be suitable for tender, the District Engineer must notify the Non -Federal Sponsor in writing of the Government's determination that the portion of the Project is complete and can function independently and for a useful purpose, although the balance of the Project is not complete. J. The term "betterment" shall mean a change in the design and construction of an element of the Project resulting from the application of standards that the Government determines exceed those that the Government would otherwise apply for accomplishing the design and construction of that element. 3 CED205TCA 3/12/98 7:34 AM ARTICLE II -- OBLIGATIONS OF THE GOVERNMENT AND THE NON-FEDERAL SPONSOR A. The Government, subject to the availability of funds and using those funds and funds provided by the Non -Federal Sponsor, shall expeditiously construct the Project (including alteration, lowering, raising, or replacement and attendant removal of existing railroad bridges and approaches thereto), applying those procedures usually applied to Federal projects, pursuant to Federal laws, regulations, and policies. 1. The Government shall afford the Non -Federal Sponsor the opportunity to review and comment on the solicitations for all contracts, including relevant plans and specifications, prior to the Government's issuance of such solicitations. The Government shall not issue the solicitation for the first construction contract until the Non -Federal Sponsor has confirmed in writing its willingness to proceed with the Project. To the extent possible, the Government shall afford the Non -Federal Sponsor the opportunity to review and comment on all contract modifications, including change orders, prior to the issuance to the contractor of a Notice to Proceed. In any instance where providing the Non -Federal Sponsor with notification of a contract modification or change order is not possible prior to issuance of the Notice to Proceed, the Government shall provide such notification in writing at the earliest date possible. To the extent possible, the Government also shall afford the Non -Federal Sponsor the opportunity to review and comment on all contract claims prior to resolution thereof. The Government shall consider in good faith the comments of the Non -Federal Sponsor, but the contents of solicitations, award of contracts, execution of contract modifications, issuance of change orders, resolution of contract claims, and performance of all work on the Project (whether the work is performed under contract or by Government personnel), shall be exclusively within the control of the Government. 2. Throughout the period of construction, the District Engineer shall furnish the Non -Federal Sponsor with a copy of the Government's Written Notice of Acceptance of Completed Work for each contract for the Project. B. The Non -Federal Sponsor may request the Government to accomplish betterments. Such requests shall be in writing and shall describe the betterments requested to be accomplished. If the Government in its sole discretion elects to accomplish the requested betterments or any portion thereof, it shall so notify the Non -Federal Sponsor in a writing that sets forth any applicable terms and conditions, which must be consistent with this Agreement. In the event of conflict between such a writing and this Agreement, this Agreement shall control. The Non -Federal Sponsor shall be solely responsible for all costs due to the requested betterments and shall pay all such costs in accordance with Article VI.C. of this Agreement. C. When the District Engineer determines that the entire Project is complete or that a portion of the Project has become a functional portion of the Project, the District Engineer shall so notify the Non -Federal Sponsor in writing and furnish the Non -Federal Sponsor with an Operation, Maintenance, Repair, Replacement, and Rehabilitation Manual (hereinafter the "OMRR&R Manual") and with copies of all of CED205TCA 3/12/98 7:34 AM the Government's Written Notices of Acceptance of Completed Work for all contracts for the Project or the functional portion of the Project that have not been provided previously. Upon such notification, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the entire Project or the functional portion of the Project in accordance with Article VIII of this Agreement. D. The Non -Federal Sponsor shall contribute a minimum of 35 percent, but not to exceed 50 percent, of total project costs in accordance with the provisions of this paragraph. 1. The Non -Federal Sponsor shall provide a cash contribution equal to 5 percent of total project costs in accordance with Article VI.B. of this Agreement. 2. In accordance with Article III of this Agreement, the Non -Federal Sponsor shall provide all lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas that the Government determines the Non -Federal Sponsor must provide for the construction, operation, and maintenance of the Project, and shall perform or ensure performance of all relocations that the Government determines to be necessary for the construction, operation, and maintenance of the Project. 3. If the Government projects that the value of the Non -Federal Sponsor's contributions under paragraphs D.1. and D.2. of this Article and Articles V, X, and XV.A. of this Agreement will be less than 35 percent of total project costs, the Non - Federal Sponsor shall provide an additional cash contribution, in accordance with Article VI.B. of this Agreement, in the amount necessary to make the Non -Federal Sponsor's total contribution equal to 35 percent of total project costs. 4. If the Government determines that the value of the Non -Federal Sponsor's contributions provided under paragraphs D.2. and D.3. of this Article and Articles V, X, and XV.A. of this Agreement has exceeded 45 percent of total project costs, the Government, subject to the availability of funds, shall reimburse the Non - Federal Sponsor for any such value in excess of 45 percent of total project costs. After such a determination, the Government, in its sole discretion, may provide any remaining Project lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas and perform any remaining Project relocations on behalf of the Non -Federal Sponsor. E. The Non -Federal Sponsor may request the Government to provide lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas or perform relocations on behalf of the Non -Federal Sponsor. Such requests shall be in writing and shall describe the services requested to be performed. If in its sole discretion the Government elects to perform the requested services or any portion thereof, it shall so notify the Non -Federal Sponsor in a writing that sets forth any applicable terms and conditions, which must be consistent with this Agreement. In the event of conflict between such a writing and this Agreement, this Agreement shall control. The Non -Federal Sponsor shall be solely responsible for all costs of the requested services and shall pay all such costs in accordance with Article VI.C. of this Agreement. Notwithstanding the provision of lands, easements, rights -of -way, and 5 CED205TCA 3/12/98 7:34 AM suitable borrow and dredged or excavated material disposal areas or performance of relocations by the Government, the Non -Federal Sponsor shall be responsible, as between the Government and the Non -Federal Sponsor, for the costs of cleanup and response in accordance with Article XV.C. of this Agreement. F. The Government shall perform a final accounting in accordance with Article VI.D. of this Agreement to determine the contributions provided by the Non -Federal Sponsor in accordance with paragraphs B., D., and E. of this Article and Articles V, X, and XV.A. of this Agreement and to determine whether the Non -Federal Sponsor has met its obligations under paragraphs B., D., and E. of this Article. G. The Non -Federal Sponsor shall not use Federal funds to meet the Non - Federal Sponsor's share of total project costs under this Agreement unless the Federal granting agency verifies in writing that the expenditure of such funds is expressly authorized by statute. H. In the exercise of their respective rights and obligations under this Agreement, the Non -Federal Sponsor and the Government agree to comply with all applicable Federal and State laws and regulations, including, but not limited to, Section 601 of the Civil Rights Act of 1964, Public Law 88-352 (42 U. S. C. 2000d), and Department of Defense Directive 5500.11 issued pursuant thereto, as well as Army Regulations 600- 7, entitled "Nondiscrimination on the Basis of Handicap in Programs and Activities Assisted or Conducted by the Department of the Army, and Section 402 of the Water Resources Development Act of 1986, as amended (33 U. S. C. 701b-12), requiring non -Federal preparation and implementation of flood plain management plans. I. Not less than once each year the Non -Federal Sponsor shall inform affected interests of the extent of protection afforded by the Project. J. The Non -Federal Sponsor shall publicize flood plain information in the area concerned and shall provide this information to zoning and other regulatory agencies for their use in preventing unwise future development in the flood plain and in adopting such regulations as may be necessary to prevent unwise future development and to ensure compatibility with protection levels provided by the Project. K. The Non -Federal Sponsor shall ensure that the modification to the south Boeing Bridge described in paragraph 4.06 of the DPR is provided, operated, maintained, repaired, replaced, and rehabilitated at no Federal expense, in a manner compatible with the project's authorized purposes and in accordance with applicable Federal and State laws and regulations and any specific directions prescribed by the Federal Government. ARTICLE III -- LANDS, RELOCATIONS, DISPOSAL AREAS, AND PUBLIC LAW 91-646 COMPLIANCE A. The Government, after consultation with the Non -Federal Sponsor, shall determine the lands, easements, and rights -of -way required for the construction, operation, and maintenance of the Project, including those required for relocations, CED205.PCA 3/12/98 7:34 AM borrow materials, and dredged or excavated material disposal. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions, including maps as appropriate, of the lands, easements, and rights -of - way that the Government determines the Non -Federal Sponsor must provide, in detail sufficient to enable the Non_Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with acquisition of such lands, easements, and rights -of -way. Prior to the end of the period of construction, the Non -Federal Sponsor shall acquire all lands, easements, and rights -of -way set forth in such descriptions. Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non - Federal Sponsor shall provide the Government with authorization for entry to all lands, easements, and rights -of -way the Government determines the Non -Federal Sponsor must provide for that contract. For so long as the Project remains authorized, the Non -Federal Sponsor shall ensure that lands, easements, and rights - of -way that the Government determines to be required for the operation and maintenance of the Project and that were provided by the Non -Federal Sponsor are retained in public ownership for uses compatible with the authorized purposes of the Project. B. The Government, after consultation with the Non -Federal Sponsor, shall determine the improvements required on lands, easements, and rights -of -way to enable the proper disposal of dredged or excavated material associated with the construction, operation, and maintenance of the Project. Such improvements may include, but are not necessarily limited to, retaining dikes, wasteweirs, bulkheads, embankments, monitoring features, stilling basins, and de -watering pumps and pipes. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions of such improvements in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with construction of such improvements. Prior to the end of the period of construction, the Non -Federal Sponsor shall provide all improvements set forth in such descriptions. Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non -Federal Sponsor shall prepare plans and specifications for all improvements the Government determines to be required for the proper disposal of dredged or excavated material under that contract, submit such plans and specifications to the Government for approval, and provide such improvements in accordance with the approved plans and specifications. C. The Government, after consultation with the Non -Federal Sponsor, shall determine the relocations necessary for the construction, operation, and maintenance of the Project, including those necessary to enable the removal of borrow materials and the proper disposal of dredged or excavated material. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions, including maps as appropriate, of such relocations in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with such relocations. Prior to the end of the period of construction, the Non -Federal Sponsor shall perform or ensure the performance of all relocations as set forth in such descriptions. CED205.PCA 3/12/98 7:34 AM Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non -Federal Sponsor shall prepare or ensure the preparation of plans and specifications for, and perform or ensure the performance of, all relocations the Government determines to be necessary for that contract. D. The Non -Federal Sponsor in a timely manner shall provide the Government with such documents as are sufficient to enable the Government to determine the value of any contribution provided pursuant to paragraph A., B., or C. of this Article. Upon receipt of such documents the Government, in accordance with Article IV of this Agreement and in a timely manner, shall determine the value of such contribution, include such value in total project costs, and afford credit for such value toward the Non -Federal Sponsor's share of total project costs. E. The Non -Federal Sponsor shall comply with the applicable provisions of the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970, Public Law 91-646, as amended by Title IV of the Surface Transportation and Uniform Relocation Assistance Act of 1987 (Public Law 100-17), and the Uniform Regulations contained in 49 C.F.R. Part 24, in acquiring lands, easements, and rights -of -way required for the construction, operation, and maintenance of the Project, including those necessary for relocations, borrow materials, and dredged or excavated material disposal, and shall inform all affected persons of applicable benefits, policies, and procedures in connection with said Act. ARTICLE IV -- CREDIT FOR VALUE OF LANDS, RELOCATIONS, AND DISPOSAL AREAS A. The Non -Federal Sponsor shall receive credit toward its share of total project costs for the value of the lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas that the Non -Federal Sponsor must provide pursuant to Article III of this Agreement, and for the value of the relocations that the Non -Federal Sponsor must perform or for which it must ensure performance pursuant to Article III of this Agreement. However, the Non -Federal Sponsor shall not receive credit for the value of any lands, easements, rights -of -way, relocations, or borrow and dredged or excavated material disposal areas that have been provided previously as an item of cooperation for another Federal project. The Non -Federal Sponsor also shall not receive credit for the value of lands, easements, rights -of -way, relocations, or borrow and dredged or excavated material disposal areas to the extent that such items are provided using Federal funds unless the Federal granting agency verifies in writing that such credit is expressly authorized by statute. B. For the sole purpose of affording credit in accordance with this Agreement, the value of lands, easements, and rights -of -way, including those necessary for relocations, borrow materials, and dredged or excavated material disposal, shall be CED205TCA 3/12/98 7:34 AM the fair market value of the real property interests, plus certain incidental costs of acquiring those interests, as determined in accordance with the provisions of this paragraph. 1. Date of Valuation. The fair market value of lands, easements, or rights - of -way owned by the Non -Federal Sponsor on the effective date of this Agreement shall be the fair market value of such real property interests as of the date the Non - Federal Sponsor provides the Government with authorization for entry thereto. The fair market value of lands, easements, or rights -of -way acquired by the Non -Federal Sponsor after the effective date of this Agreement shall be the fair market value of such real property interests at the time the interests are acquired. 2. General Valuation Procedure. Except as provided in paragraph B.3. of this Article, the fair market value of lands, easements, or rights -of -way shall be determined in accordance with paragraph B.2.a. of this Article, unless thereafter a different amount is determined to represent fair market value in accordance with paragraph B.2.b. of this Article. a. The Non -Federal Sponsor shall obtain, for each real property interest, an appraisal that is prepared by a qualified appraiser who is acceptable to the Non - Federal Sponsor and the Government. The appraisal must be prepared in accordance with the applicable rules of just compensation, as specified by the Government. The fair market value shall be the amount set forth in the Non -Federal Sponsor's appraisal, if such appraisal is approved by the Government. In the event the Government does not approve the Non -Federal Sponsor's appraisal, the Non -Federal Sponsor may obtain a second appraisal, and the fair market value shall be the amount set forth in the Non -Federal Sponsor's second appraisal, if such appraisal is approved by the Government. In the event the Government does not approve the Non -Federal Sponsor's second appraisal, or the Non -Federal Sponsor chooses not to obtain a second appraisal, the Government shall obtain an appraisal, and the fair market value shall be the amount set forth in the Government's appraisal, if such appraisal is approved by the Non -Federal Sponsor. In the event the Non -Federal Sponsor does not approve the Government's appraisal, the Government, after consultation with the Non -Federal Sponsor, shall consider the Government's and the Non -Federal Sponsor's appraisals and determine an amount based thereon, which shall be deemed to be the fair market value. b. Where the amount paid or proposed to be paid by the Non -Federal Sponsor for the real property interest exceeds the amount determined pursuant to paragraph B.2.a. of this Article, the Government, at the request of the Non -Federal Sponsor, shall consider all factors relevant to determining fair market value and, in its sole discretion, after consultation with the Non -Federal Sponsor, may approve in writing an amount greater than the amount determined pursuant to paragraph B.2.a. of this Article, but not to exceed the amount actually paid or proposed to be paid. If the Government approves such an amount, the fair market value shall be the lesser of the approved amount or the amount paid by the Non -Federal Sponsor, but no less than the amount determined pursuant to paragraph B.2.a. of this Article. CED205.PCA 3/12/98 7:34 AM 3. Eminent Domain Valuation Procedure. For lands, easements, or rights - of -way acquired by eminent domain proceedings instituted after the effective date of this Agreement, the Non -Federal Sponsor shall, prior to instituting such proceedings, submit to the Government notification in writing of its intent to institute such proceedings and an appraisal of the specific real property interests to be acquired in such proceedings. The Government shall have 60 days after receipt of such a notice and appraisal within which to review the appraisal, if not previously approved by the Government in writing. a. If the Government previously has approved the appraisal in writing, or if the Government provides written approval of, or takes no action on, the appraisal within such 60-day period, the Non -Federal Sponsor shall use the amount set forth in such appraisal as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. b. If the Government provides written disapproval of the appraisal, including the reasons for disapproval, within such 60-day period, the Government and the Non -Federal Sponsor shall consult in good faith to promptly resolve the issues or areas of disagreement that are identified in the Government's written disapproval. If, after such good faith consultation, the Government and the Non - Federal Sponsor agree as to an appropriate amount, then the Non -Federal Sponsor shall use that amount as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. If, after such good faith consultation, the Government and the Non -Federal Sponsor cannot agree as to an appropriate amount, then the Non -Federal Sponsor may use the amount set forth in its appraisal as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. c. For lands, easements, or rights -of -way acquired by eminent domain proceedings instituted in accordance with sub -paragraph B.3. of this Article, fair market value shall be either the amount of the court award for the real property interests taken, to the extent the Government determined such interests are required for the construction, operation, and maintenance of the Project, or the amount of any stipulated settlement or portion thereof that the Government approves in writing. 4. Incidental Costs. For lands, easements, or rights -of -way acquired by the Non -Federal Sponsor within a five-year period preceding the effective date of this Agreement, or at any time after the effective date of this Agreement, the value of the interest shall include the documented incidental costs of acquiring the interest, as determined by the Government, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. Such incidental costs shall include, but not necessarily be limited to, closing and title costs, appraisal costs, survey costs, attorney's fees, plat maps, and mapping costs, as well as the actual amounts expended for payment of any Public Law 91-646 relocation assistance benefits provided in accordance with Article III.E. of this Agreement. C. After consultation with the Non -Federal Sponsor, the Government shall determine the value of relocations in accordance with the provisions of this paragraph. 10 CED205TCA 3/12/98 7:34 AM 1. For a relocation other than a highway, the value shall be only that portion of relocation costs that the Government determines is necessary to provide a functionally equivalent facility, reduced by depreciation, as applicable, and by the salvage value of any removed items. 2. For a relocation of a highway, the value shall be only that portion of relocation costs that would be necessary to accomplish the relocation in accordance with the design standard that the State of Washington would apply under similar conditions of geography and traffic load, reduced by the salvage value of any removed items. 3. Relocation costs shall include, but not necessarily be limited to, actual costs of performing the relocation; planning, engineering and design costs; supervision and administration costs; and documented incidental costs associated with performance of the relocation, but shall not include any costs due to betterments, as determined by the Government, nor any additional cost of using new material when suitable used material is available. Relocation costs shall be subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. D. The value of the improvements made to lands, easements, and rights -of -way for the proper disposal of dredged or excavated material shall be the costs of the improvements, as determined by the Government, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. Such costs shall include, but not necessarily be limited to, actual costs of providing the improvements; planning, engineering and design costs; supervision and administration costs; and documented incidental costs associated with providing the improvements, but shall not include any costs due to betterments, as determined by the Government. ARTICLE V -- PROJECT COORDINATION TEAM A. To provide for consistent and effective communication, the Non -Federal Sponsor and the Government, not later than 30 days after the effective date of this Agreement, shall appoint named senior representatives to a Project Coordination Team. Thereafter, the Project Coordination Team shall meet regularly until the end of the period of construction. The Government's Project Manager and a counterpart named by the Non -Federal Sponsor shall co-chair the Project Coordination Team. B. The Government's Project Manager and the Non -Federal Sponsor's counterpart shall keep the Project Coordination Team informed of the progress of construction and of significant pending issues and actions, and shall seek the views of the Project Coordination Team on matters that the Project Coordination Team generally oversees. C. Until the end of the period of construction, the Project Coordination Team shall generally oversee the Project, including issues related to design; plans and specifications; scheduling; real property and relocation requirements; real property acquisition; contract awards and modifications; contract costs; the Government's cost CED205TCA 3/12/98 7:34 AM projections; final inspection of the entire Project or functional portions of the Project; preparation of the proposed OMRR&R Manual; anticipated requirements and needed capabilities for performance of operation, maintenance, repair, replacement, and rehabilitation of the Project; and other related matters. D. The Project Coordination Team may make recommendations that it deems warranted to the District Engineer on matters that the Project Coordination Team generally oversees, including suggestions to avoid potential sources of dispute. The Government in good faith shall consider the recommendations of the Project Coordination Team. The Government, having the legal authority and responsibility for construction of the Project, has the discretion to accept, reject, or modify the Project Coordination Team's recommendations. E. The costs of participation in the Project Coordination Team shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. ARTICLE VI -- METHOD OF PAYMENT A. The Government shall maintain current records of contributions provided by the parties and current projections of total project costs and costs due to betterments. At least quarterly, the Government shall provide the Non -Federal Sponsor w1th a report setting forth all contributions provided to date and the current projections of total project costs, of total costs due to betterments, of the components of total project costs, of each party's share of total project costs, of the Non -Federal Sponsor's total cash contributions required in accordance with Articles II.B., II.D., and II.E. of this Agreement, and of the non -Federal proportionate share. On the effective date of this Agreement, total project costs are projected to be $6,648,000, and the Non -Federal Sponsor's cash contribution required under Article II.D. of this Agreement is projected to be $2,327,000. Such amounts are estimates subject to adjustment by the Government and are not to be construed as the total financial responsibilities of the Government and the Non -Federal Sponsor. B. The Non -Federal Sponsor shall provide the cash contribution required under Articles II.D.1. and II.D.3. of this Agreement in accordance with the following provisions: Not less than 30 calendar days prior to the scheduled date for issuance of the solicitation for the first construction contract, the Government shall notify the Non -Federal Sponsor in writing of such scheduled date and the funds the Government determines to be required from the Non -Federal Sponsor to meet its projected cash contribution under Articles II.D.1. and II.D.3. of this Agreement. Not later than such scheduled date, the Non -Federal Sponsor shall provide the Government with the full amount of the required funds by delivering a check payable to "FAO, USAED, Portland (Seattle)" to the District Engineer. The Government shall draw from the funds provided by the Non -Federal Sponsor such sums as the Government deems necessary to cover: (a) the non -Federal proportionate share of financial obligations for construction incurred prior to the commencement of the period of construction; and (b) the non -Federal proportionate share of financial obligations for construction as they are incurred during the period of construction. In the event the Government determines that the Non -Federal Sponsor must provide 12 CED205TCA 3/12/98 7:34 AM additional funds to meet the Non -Federal Sponsor's cash contribution, the Government shall notify the Non -Federal Sponsor in writing of the additional funds required. Within 60 calendar days thereafter, the Non -Federal Sponsor shall provide the Government with a check for the full amount of the additional required funds. C. In advance of the Government incurring any financial obligation associated with additional work under Article II.B. or II.E. of this Agreement, the Non -Federal Sponsor shall provide the Government with the full amount of the funds required to pay for such additional work by delivering a check payable to "FAO, USAED, Portland (Seattle)" to the District Engineer. The Government shall draw from the funds provided by the Non -Federal Sponsor such sums as the Government deems necessary to cover the Government's financial obligations for such additional work as they are incurred. In the event the Government determines that the Non -Federal Sponsor must provide additional funds to meet its cash contribution, the Government shall notify the Non -Federal Sponsor in writing of the additional funds required. Within 30 calendar days thereafter, the Non -Federal Sponsor shall provide the Government with a check for the full amount of the additional required funds. D. Upon completion of the Project or termination of this Agreement, and upon resolution of all relevant claims and appeals, the Government shall conduct a final accounting and furnish the Non -Federal Sponsor with the results of the final accounting. The final accounting shall determine total project costs, each party's contribution provided thereto, and each party's required share thereof. The final accounting also shall determine costs due to betterments and the Non -Federal Sponsor's cash contribution provided pursuant to Article II.B. of this Agreement. 1. In the event the final accounting shows that the total contribution provided by the Non -Federal Sponsor is less than its required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement, the Non -Federal Sponsor shall, no later than 90 calendar days after receipt of written notice, make a cash payment to the Government of whatever sum is required to meet the Non -Federal Sponsor's required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement. 2. In the event the final accounting shows that the total contribution provided by the Non -Federal Sponsor exceeds its required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement, the Government shall, subject to the availability of funds, refund the excess to the Non -Federal Sponsor no later than 90 calendar days after the final accounting is complete; however, the Non -Federal Sponsor shall not be entitled to any refund of the 5 percent cash contribution required pursuant to Article II.D.1. of this Agreement. In the event existing funds are not available to refund the excess to the Non -Federal Sponsor, the Government shall seek such appropriations as are necessary to make the refund. 13 CED205.PCA 3/12/98 7:34 AM ARTICLE VII -- DISPUTE RESOLUTION As a condition precedent to a party bringing any suit for breach of this Agreement, that party must first notify the other party in writing of the nature of the purported breach and seek in good faith to resolve the dispute through negotiation. If the parties cannot resolve the dispute through negotiation, they may agree to a mutually acceptable method of non -binding alternative dispute resolution with a qualified third party acceptable to both parties. The parties shall each pay 50 percent of any costs for the services provided by such a third party as such costs are incurred. The existence of a dispute shall not excuse the parties from performance pursuant to this Agreement. ARTICLE VIII -- OPERATION, MAINTENANCE, REPAIR, REPLACEMENT, AND REHABILITATION (OMRR&R) A. Upon notification in accordance with Article II.C. of this Agreement and for so long as the Project remains authorized, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the entire Project or the functional portion of the Project, at no cost to the Government, in a manner compatible with the Project's authorized purposes and in accordance with applicable Fcdcral and State laws as provided in Article XI of this Agreement and specific directions prescribed by the Government in the OMRR&R Manual and any subsequent amendments thereto. B. The Non -Federal Sponsor hereby gives the Government a right to enter, at reasonable times and in a reasonable manner, upon property that the Non -Federal Sponsor owns or controls for access to the Project for the purpose of inspection and, if necessary, for the purpose of completing, operating, maintaining, repairing, replacing, or rehabilitating the Project. If an inspection shows that the Non -Federal Sponsor for any reason is failing to perform its obligations under this Agreement, the Government shall send a written notice describing the non-performance to the Non -Federal Sponsor. If, after 30 calendar days from receipt of notice, the Non -Federal Sponsor continues to fail to perform, then the Government shall have the right to enter, at reasonable times and in a reasonable manner, upon property that the Non -Federal Sponsor owns or controls for access to the Project for the purpose of completing, operating, maintaining, repairing, replacing, or rehabilitating the Project. No completion, operation, maintenance, repair, replacement, or rehabilitation by the Government shall operate to relieve the Non -Federal Sponsor of responsibility to meet the Non -Federal Sponsor's obligations as set forth in this Agreement, or to preclude the Government from pursuing any other remedy at law or equity to ensure faithful performance pursuant to this Agreement. ARTICLE IX -- INDEMNIFICATION The Non -Federal Sponsor shall hold and save the Government free from all damages arising from the construction, operation, maintenance, repair, replacement, and rehabilitation of the Project and any Project -related betterments, except for damages due to the fault or negligence of the Government or its contractors. 14 CED205.PCA 3/12/98 7:34 AM ARTICLE X -- MAINTENANCE OF RECORDS AND AUDIT A. Not later than 60 calendar days after the effective date of this Agreement, the Government and the Non -Federal Sponsor shall develop procedures for keeping books, records, documents, and other evidence pertaining to costs and expenses incurred pursuant to this Agreement. These procedures shall incorporate, and apply as appropriate, the standards for financial management systems set forth in the Uniform Administrative Requirements for Grants and Cooperative Agreements to State and Local Governments at 32 C.F.R. Section 33.20. The Government and the Non - Federal Sponsor shall maintain such books, records, documents, and other evidence in accordance with these procedures and for a minimum of three years after the period of construction and resolution of all relevant claims arising therefrom. To the extent permitted under applicable Federal laws and regulations, the Government and the Non -Federal Sponsor shall each allow the other to inspect such books, documents, records, and other evidence. B. Pursuant to 32 C.F.R. Section 33.26, the Non -Federal Sponsor is responsible for complying with the Single Audit Act of 1984, 31 U.S.C. Sections 7501-7507, as implemented by Office of Management and Budget (OMB) Circular No. A-133 and Department of Defense Directive 7600.10. Upon request of the Non -Federal Sponsor and to the extent permitted under applicable Federal laws and regulations, the Government shall provide to the Non -Federal Sponsor and independent auditors any information necessary to enable an audit of the Non -Federal Sponsor's activities under this Agreement. The costs of any non -Federal audits performed in accordance with this paragraph shall be allocated in accordance with the provisions of OMB Circulars A-87 and A-133, and such costs as are allocated to the Project shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. C. In accordance with 31 U.S.C. Section 7503, the Government may conduct audits in addition to any audit that the Non -Federal Sponsor is required to conduct under the Single Audit Act. Any such Government audits shall be conducted in accordance with Government Auditing Standards and the cost principles in OMB Circular No. A-87 and other applicable cost principles and regulations. The costs of Government audits performed in accordance with this paragraph shall be included in total project costs and cost shared in accordance with the provisions of this agreement. ARTICLE XI -- FEDERAL AND STATE LAWS In the exercise of their respective rights and obligations under this Agreement, the Non -Federal Sponsor and the Government agree to comply with all applicable Federal and State laws and regulations, including, but not limited to, Section 601 of the Civil Rights Act of 1964, Public Law 88-352 (42 U.S.C. 2000d), and Department of Defense Directive 5500.11 issued pursuant thereto, as well as Army Regulations 600- 7, entitled "Nondiscrimination on the Basis of Handicap in Programs and Activities Assisted or Conducted by the Department of the Army". 15 CED205.PCA 3/12/98 7:34 AM ARTICLE XII -- RELATIONSHIP OF PARTIES A. In the exercise of their respective rights and obligations under this Agreement, the Government and the Non -Federal Sponsor each act in an independent capacity, and neither is to be considered the officer, agent, or employee of the other. B. In the exercise of its rights and obligations under this Agreement, neither party shall provide, without the consent of the other party, any contractor with a release that waives or purports to waive any rights such other party may have to seek relief or redress against such contractor either pursuant to any cause of action that such other party may have or for violation of any law. ARTICLE XIII -- OFFICIALS NOT TO BENEFIT No member of or delegate to the Congress, nor any resident commissioner, shall be admitted to any share or part of this Agreement, or to any benefit that may arise therefrom. ARTICLE XIV -- TERMINATION OR SUSPENSION A. If at any time the Non -Federal Sponsor fails to fulfill its obligations under Article II. B., II.D., II.E., VI, or XVIII.C. of this Agreement, the Government shall terminate this Agreement or suspend future performance under this Agreement unless the Assistant Secretary of the Army (Civil Works) determines that continuation of work on the Project is in the interest of the United States or is necessary in order to satisfy agreements with any other non -Federal interests in connection with the Project. B. If the Government fails to receive annual appropriations in amounts sufficient to meet Project expenditures for the then -current or upcoming fiscal year, the Government shall so notify the Non -Federal Sponsor in writing, and 60 calendar days thereafter either party may elect without penalty to terminate this Agreement or to suspend future performance under this Agreement. In the event that either party elects to suspend future performance under this Agreement pursuant to this paragraph, such suspension shall remain in effect until such time as the Government receives sufficient appropriations or until either the Government or the Non -Federal Sponsor elects to terminate this Agreement. C. In the event that either party elects to terminate this Agreement pursuant to this Article or Article XV of this Agreement, both parties shall conclude their activities relating to the Project and proceed to a final accounting in accordance with Article VI.D. of this Agreement. D. Any termination of this Agreement or suspension of future performance under this Agreement in accordance with this Article or Article XV of this Agreement shall not relieve the parties of liability for any obligation previously incurred. Any delinquent payment shall be charged interest at a rate, to be determined by the 16 CED205. PCA 3/12/98 7:34 AM Secretary of the Treasury, equal to 150 per centum of the average bond equivalent rate of the 13-week Treasury bills auctioned immediately prior to the date on which such payment became delinquent, or auctioned immediately prior to the beginning of each additional 3-month period if the period of delinquency exceeds 3 months. ARTICLE XV -- HAZARDOUS SUBSTANCES A. After execution of this Agreement and upon direction by the District Engineer, the Non -Federal Sponsor shall perform, or cause to be performed, any investigations for hazardous substances that the Government or the Non -Federal Sponsor determines to be necessary to identify the existence and extent of any hazardous substances regulated under the Comprehensive Environmental Response, Compensation, and Liability Act (hereinafter "CERCLA"), 42 U.S.C. Sections 9601- 9675, that may exist in, on, or under lands, easements, and rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project. However, for lands that the Government determines to be subject to the navigation servitude, only the Government shall perform such investigations unless the District Engineer provides the Non -Federal Sponsor with prior specific written direction, in which case the Non - Federal Sponsor shall perform such investigations in accordance with such written direction. All actual costs incurred by the Non -Federal Sponsor for such investigations for hazardous substances shall be included in total project costs and cost shared in accordance with the provisions of this Agreement, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. B. In the event it is discovered through any investigation for hazardous substances or other means that hazardous substances regulated under CERCLA exist in, on, or under any lands, easements, or rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project, the Non -Federal Sponsor and the Government shall provide prompt written notice to each other, and the Non - Federal Sponsor shall not proceed with the acquisition of the real property interests until both parties agree that the Non -Federal Sponsor should proceed. C. The Government and the Non -Federal Sponsor shall determine whether to initiate construction of the Project, or, if already in construction, whether to continue with work on the Project, suspend future performance under this Agreement, or terminate this Agreement for the convenience of the Government, in any case where hazardous substances regulated under CERCLA are found to exist in, on, or under any lands, easements, or rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project. Should the Government and the Non -Federal Sponsor determine to initiate or continue with construction after considering any liability that may arise under CERCLA, the Non -Federal Sponsor shall be responsible, as between the Government and the Non -Federal Sponsor, for the costs of clean-up and response to include the costs of any studies and investigations necessary to determine an appropriate response to the contamination. Such costs shall not be considered a part of total project costs. In the event the Non -Federal Sponsor fails to provide any funds 17 CED205.PCA 3/12/98 7:34 AM necessary to pay for clean up and response costs or to otherwise discharge the Non - Federal Sponsor's responsibilities under this paragraph upon direction by the Government, the Government may, in its sole discretion, either terminate this Agreement for the convenience of the Government, suspend future performance under this Agreement, or continue work on the Project. D. The Non -Federal Sponsor and the Government shall consult with each other in accordance with Article V of this Agreement in an effort to ensure that responsible parties bear any necessary clean up and response costs as defined in CERCLA. Any decision made pursuant to paragraph C. of this Article shall not relieve any third party from any liability that may arise under CERCLA. E. As between the Government and the Non -Federal Sponsor, the Non -Federal Sponsor shall be considered the operator of the Project for purposes of CERCLA liability. To the maximum extent practicable, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the Project in a manner that will not cause liability to arise under CERCLA. ARTICLE XVI -- NOTICES A. Any notice, request, demand, or other communication required or permitted to be given under this Agreement shall be deemed to have been duly given if inwriting and either delivered personally or by telegram or mailed by first-class, registered, or certified mail, as follows: If to the Non -Federal Sponsor: Mayor, City of Renton 200 Mill Street Renton, Washington 98055 If to the Government: District Engineer U.S. Army Engineer District P. O. Box 3755 Seattle, Washington 98124-3755 B. A party may change the address to which such communications are to be directed by giving written notice to the other party in the manner provided in this Article. Is CED205. PCA 3/12/98 7:34 AM C. Any notice, request, demand, or other communication made pursuant to this Article shall be deemed to have been received by the addressee at the earlier of such time as it is actually received or seven calendar days after it is mailed. ARTICLE XVII -- CONFIDENTIALITY To the extent permitted by the laws governing each party, the parties agree to maintain the confidentiality of exchanged information when requested to do so by the providing party. ARTICLE XVIII -- HISTORIC PRESERVATION A. The costs of identification, survey and evaluation of historic properties shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. B. As specified in Section 7(a) of Public Law 93-291 (16 U.S.C. Section 469c(a)), the costs of mitigation and data recovery activities associated with historic preservation shall be borne entirely by the Government and shall not be included in total project costs, up to the statutory limit of one percent of the total amount the Government is authorized to expend for the Project. C. The Government shall not incur costs for mitigation and data recovery that exceed the statutory one percent limit specified in paragraph B. of this Article unless and until the Assistant Secretary of the Army (Civil Works) has waived that limit in accordance with Section 208(3) of Public Law 96-515 (16 U.S.C. Section 469c-2(3)). Any costs of mitigation and data recovery that exceed the one percent limit shall not be included in total project costs but shall be cost shared between the Non -Federal Sponsor and the Government consistent with the minimum non -Federal cost sharing requirements for the underlying flood control purpose, as follows: 35 percent borne by the Non -Federal Sponsor, and 65 percent borne by the Government. ARTICLE XIX -- LIMITATION ON GOVERNMENT EXPENDITURES In accordance with Section 205 of the Flood Control Act of 1948, as amended, the Government's financial participation in the Project is limited to $5,000,000 which shall include all Federal funds expended by the Government for planning, design, and implementation of the project except for coordination account funds expended prior to the first work allowance for study initiation. Notwithstanding any other provision of this Agreement, the Non -Federal Sponsor shall be responsible for all costs in excess of this amount. 19 CED205.PCA 3/12/98 7:34 AM IN WITNESS WHEREOF, the parties hereto have executed this Agreement, which shall become effective upon the date it is signed by the District Engineer. THE DEPARTMENT OF THE ARMY VYt BY: e�' J MES M. RIGSBY C lonel, Corps of Engineers Seattle District Engineer DATE: ' l THE CITY OF RENTON, WASH GTON BY: JESSE TANNER Mayor DATE: 20 CED205.PCA 3/12/98 7:34 AM CERTIFICATE OF AUTHORITY I, LAWRENCE J. WARREN, do hereby certify that I am the principal legal officer of the City of Renton, Washington, that the City of Renton is a legally constituted public body with full authority and legal capability to perform the terms of the Agreement between the Department of the Army and the City of Renton, Washington, in connection with the Cedar River, Renton, Washington Flood Damage Reduction Project, and to pay damages in accordance with the terms of this Agreement, if necessary, in the event of the failure to perform, as required by Section 221 of Public Law 91-911 (42 U.S.C. Section 1962d-5b), and that the persons who have executed this Agreement on behalf of the City of Renton have acted within their statutory authority. IN WITNESS WHEREOF, I have made and executed this certification this (o,& day of 1998. BY: LAWRENCE J. WARREN Renton City Attorney 21 CED205TCA 3/12/98 7:34 AM CERTIFICATION REGARDING LOBBYING The undersigned certifies, to the best of his or her knowledge and belief that: (1) No Federal appropriated funds have been paid or will be paid, by or on behalf of the undersigned, to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress, an officer or employee of Congress, or an employee of a Member of Congress in connection with the awarding of any Federal contract, the making of any Federal grant, the making of any Federal loan, the entering into of any cooperative agreement, and the extension, continuation, renewal, amendment, or modification of any Federal contract, grant, loan, or cooperative agreement. (2) If any funds other than Federal appropriated funds have been paid or will be paid to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress, an officer or employee of Congress, or an employee of a Member of Congress in connection with this Federal contract, grant, loan, or cooperative agreement, the undersigned shall complete and submit Standard Form-LLL, 'Disclosure Form to Report Lobbying," in accordance with its instructions. (3) The undersigned shall require that the language of this certification be included in the award documents for all subawards at all tiers (including subcontracts, subgrants, and contracts under grants, loans, and cooperative agreements) and that all subrecipients shall certify and disclose accordingly. This certification is a material representation of fact upon which reliance was placed when this transaction was made or entered into. Submission of this certification is a prerequisite for making or entering into this transaction imposed by Section 1352, Title 31, U.S. Code. Any person who fails to file the required certification shall be subject to a civil penalty of not less than $10,000 and not more than $100,000 for each such failure. CITY OF RENTON, WASHINGTON BY: JI-fSSE TANNER Mayor DATE: >�V� �, /,7� 9 22 CED205.PCA 3/12/98 7:34 AM Appendix B: Flood Control Regulations Pt. 208 Of Transportation, 33 CFR Ch. If (7_7_98 Commerce.Ciland Department of Edition) 5586' who will provide the requesting (vi) Data provided by portr local fa- person or entity with a reasonable cp- e ties, and State ments. or ibcal Portunity to Present evidence re govern- ing the issuance, modification, regard- ing Data from trade journals and rev- ocation of the proposed order. or publications. after, P There- (viii) Site visits and ins the Director of the inspections. sources Center shall issue a final erder. (2) Notice of Violation. Once a rep cases ing violation is determined to se Additional Remedies. t r report- Appropriate oc- curred, the Chief have oc- may also be referred to the Iocal Commerce Statistics Center will notif U ll Attorney for prosecution, Waterborne collection, injunctive, and other .relief the responsible penalty for the reports Pt° bend allow 30 day by the Chief of the Waterborne filed days merce Statistics Center. Com- fact. If the reports are after the this 30- th not filed within I56 FR 13765, Apr, q 19911 y notice period, then a priate civil or criminal actions will be undertaken b PPro- y the Arm PART 208—FLOOD CONTROL Engi- neers, including the Proposal Corps of REGULATIONS criminal penalties for nonP°sal of civil or Typical cases for criminal compliance. Sec. tion include, or civil ac- 208.10 Local flood those violation ut are not limited Hance and protection works; which are to, operation of structures and fa- peated, or have a substa �tizllful, re- ciIities. the opinion of the ntial impact in 208.11 Regulations for use borne Commerce Chief of the Water- cated for flood control or navigation storage allo- merce Statistics Center. or Project o navigation and/ (3) Administrative operation at reservoirs subject Civil Penalties. Assessment CO Prescription of rules and re assessed in the .Civil may of by the Secretary of the Army notations following manner. y be terest Of flood control and yin the in- (i) Authorization. If t the 208 19 Marshall Ford Dam navigation. Waterborne Commerce he Chief of (Mansfield Dam and and Reservoir ter finds that a merce Statistics Cen- rado River, Tex. Lake Travis), Colo - failed d Comply person or entit 208.22 Twin Buttes Dam and P y with an Y has die and South Concho Rivers iv Reservoir, Mid. failed specified herein, •y °f the provi- 208.25 to assess he is authorized Pensacola Dam and a civil penalty in accordance (Neosho) Raver. Reservoir, Grand with the Class I 208.26 Okla. 33 CFR Penalty Provisions of Red River, m and Reservoir, North Fork that the part 326. Provided, 208.27 Okla. procedures in 33 however, Fort Cobb Dam and Reservoir, specifically implement- CFR part 326 (Cobb) Creek, Oklahoma. Pond Water Act g the Clean 208.28 Foss Dam and Reservoir, (33 U.S.C. 1319 River, Oklahoma. Washita notice, comment ( (1)). Public P08 29 ordination, Period, and state co- Arbuckle Dam and shall not apply, buckles, Rock Creek, Lake of the qr_ (ii) Initiation. The Chief of the 208.32 Sanford Dam Okla. terborne Commerce Wa- nadian River, Tex Will Lake Meredith, Ca - will prepare and Statistics Center 208.33 Cheney Dam civil Process a proposed Fork of Ninnescah River North the amount order which shall 208.34 Norm Kans. mount of the penalt state an Dam and Lake Thunderbird, the a, describe b y to be as Little River, Okla. y reasonable s 208.82 Hetch Hetch ity the nature of the violation, specific- Don Pedro Dams a Cherry Valle dicate the applicable and in- and Resen'oirs, y' and CFR part 326.PP icable provisions of 33 AUTHortltY: Sec. 7, 709, 53 Stat. 390; 33 U.S.C. (iii) Hearing Re uests. a Proposed civil q Recipients of §208.10 Local a written request order may file maintenance flood Protection quest for a hearing or other structures and facilities. works; proceedin and operation g• This request shall of specified in 33 CFR part 326 and be as (a) General. I be addressed to shall ()The structures an Water the Director cilities constructed d fa - Resources Su of the States for local by the United Building,Support Center, Casey be continuouslylocflood Fort Belvoir,protection shall Virginia 22060- manner and o maintained in Aerated at such such a times and 96 Corps of Engineers, Dept. of the Army, DoD for such periods as may be necessary to obtain the maximum benefits. (2) The State, political subdivision thereof, or other responsible local agency, which furnished assurance that it will maintain and operate flood con- trol works in accordance with regula- tions prescribed by the Secretary of the Army, as required by law, shall ap- point a permanent committee consist- ing of or headed by an official herein- after called the "Superintendent," who shall be responsible for the develop- ment and maintenance of, and directly in charge of, an organization respon- sible for the efficient operation and maintenance of all of the structures and facilities during flood periods and for continuous inspection and mainte- nance of the project works during peri- ods of low water, all without cost to the United States. (3) A reserve supply of materials needed during a flood emergency shall be kept on hand at all times. (4) No encroachment or trespass which' will adversely affect the effi- cient operation or maintenance of the project works shall be permitted upon the rights -of -way for the protective fa- cilities. (5) No improvement shall be passed over, under, or through the walls, lev- ees, improved channels or floodways, nor shall any excavation or construc- tion be permitted within the limits of the project right-of-way, nor shall any change be made in any feature of the works without prior determination by the District Engineer of the Depart- ment of the Army or his authorized representative that such improvement, excavation, construction, or alteration will not adversely affect the function- ing of the protective facilities. Such improvements or alterations as may be found to be desirable and permissible under the above determination shall be constructed in accordance with stand- ard engineering practice. Advice re- garding the effect of proposed improve- ments or alterations on the function- ing of the project and information con- cerning methods of construction ac- ceptable under standard engineering practice shall be obtained from the District Engineer or, if otherwise ob- tained, shall be submitted for his ap- proval. Drawings or prints showing 97 § 208.10 such improvements or alterations as fi- nally constructed shall be furnished the District Engineer after completion of the work. (6) It shall be the duty of the super- intendent to submit a semiannual re- port to the District Engineer covering inspection, maintenance, and operation of the protective works. (7) The District Engineer or his au- thorized representatives shall have ac- cess at all times to all portions of the protective works. (8) Maintenance measures or repairs which the District Engineer deems nec- essary shall be promptly taken or made. (9) Appropriate measures shall be taken by. local authorities to insure that the activities of all local organiza- tions operating public or private facili- ties connected with the protective works are coordinated with those of the Superintendent's organization dur- ing flood periods. (10) The Department of the Army will furnish local interests with an Oper- ation and Maintenance Manual for each completed project, or separate useful part thereof, to assist them in carrying out their obligations under this part. (b) Levees —(I) Maintenance. The Su- perintendent shall provide at all times such maintenance as may be required to insure serviceability of the struc- tures in time of flood. Measures shall be taken to promote the growth of sod, exterminate burrowing animals, and to provide for routine mowing of the grass and weeds, removal of wild growth and drift deposits, and repair of damage caused by erosion or other forces. Where practicable, measures shall be taken to retard bank erosion by plant- ing of willows or other suitable growth on areas riverward of the levees. Peri- odic inspections shall be made by the Superintendent to insure that the above maintenance measures are being effectively carried out and, further, to be certain that: (i) No unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; (ii) No caving has occurred on either the land side or the river side of the levee which might affect the stability of the levee section; Corps of Engineers, Dept. of the Army, DoD for such periods as may be necessary to obtain the maximum benefits. (2) The State, political subdivision thereof, or other responsible local agency, which furnished assurance that it will maintain and operate flood con- trol works in accordance with regula- tions prescribed by the Secretary of the Army, as required by law, shall ap- point a permanent committee consist- ing of or headed by an official herein- after called the "Superintendent," who shall be responsible for the develop- ment and maintenance of, and directly in charge of, an organization respon- sible for the efficient operation and maintenance of all of the structures and facilities during flood periods and for continuous inspection and mainte- nance of the project works during peri- ods of low water, all without cost to the United States. (3) A reserve supply of materials needed during a flood emergency shall be kept on hand at all times. (4) No encroachment or trespass which' will adversely affect the effi- cient operation or maintenance of the project works shall be permitted upon the rights -of -way for the protective fa- cilities. (5) No improvement shall be passed over, under, or through the walls, lev- ees, improved channels or floodways, nor shall any excavation or construc- tion be permitted within the limits of the project right-of-way, nor shall any change be made in any feature of the works without prior determination by the District Engineer of the Depart- ment of the Army or his authorized representative that such improvement, excavation, construction, or alteration will not adversely affect the function- ing of the protective facilities. Such improvements or alterations as may be found to be desirable and permissible under the above determination shall be constructed in accordance with stand- ard engineering practice. Advice re- garding the effect of proposed improve- ments or alterations on the function- ing of the project and information con- cerning methods of construction ac- ceptable under standard engineering practice shall be obtained from the District Engineer or, if otherwise ob- tained, shall be submitted for his ap- proval. Drawings or prints showing 97 § 208.10 such improvements or alterations as fi- nally constructed shall be furnished the District Engineer after completion of the work. (6) It shall be the duty of the super- intendent to submit a semiannual re- port to the District Engineer covering inspection, maintenance, and operation of the protective works. (7) The District Engineer or his au- thorized representatives shall have ac- cess at all times to all portions of the protective works. (8) Maintenance measures or repairs which the District Engineer deems nec- essary shall be promptly taken or made. (9) Appropriate measures shall be taken by. local authorities to insure that the activities of all local organiza- tions operating public or private facili- ties connected with the protective works are coordinated with those of the Superintendent's organization dur- ing flood periods. (10) The Department of the Army will furnish local interests with an Oper- ation and Maintenance Manual for each completed project, or separate useful part thereof, to assist them in carrying out their obligations under this part. (b) Levees—(1) Maintenance. The Su- perintendent shall provide at all times such maintenance as may be required to insure serviceability of the struc- tures in time of flood. Measures shall be taken to promote the growth of sod, exterminate burrowing animals, and to provide for routine mowing of the grass and weeds, removal of wild growth and drift deposits, and repair of damage caused by erosion or other forces. Where practicable, measures shall be taken to retard bank erosion by plant- ing of willows or other suitable growth on areas riverward of the levees. Peri- odic inspections shall be made by the Superintendent to insure that the above maintenance measures are being effectively carried out and, further, to be certain that: (i) No unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; (ii) No caving has occurred on either the land side or the river side of the levee which might affect the stability of the levee section; § 208.10 (iii) No seepage, saturated areas, or sand boils are occurring; (iv) Toe drainage systems and pres- sure relief wells are in -good working condition, and that such facilities are. not becoming clogged; (v) Drains through the levees and gates on said drains are in good work- ing condition; (vi) No revetment work or riprap has been displaced, washed out, or re- moved; (vii) No action is being taken, such as burning grass and weeds during inap- propriate seasons, which will retard or destroy the growth of sod; (viii) Access roads to and on the levee are being properly maintained; (ix) Cattle guards and gates are in good condition; (x) Crown of levee is shaped so as to drain readily, and roadway thereon, if any, is well shaped and maintained; (xi) There is no unauthorized grazing or vehicular traffic on the levees; (xii) Encroachments are not being made on the levee right-of-way which might endanger the structure or hinder its proper and efficient functioning during times of emergency. Such inspections shall be made imme- diately prior to the beginning of the flood season; immediately following each major high water period, and oth- erwise at intervals not exceeding 90 days, and such intermediate times as may be necessary to insure the best possible care of the levee. Immediate. steps will be taken to correct dan- gerous conditions disclosed by such in- spections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. (2) Operation. During flood periods the levee shall be patrolled continu- ously to locate possible sand boils or unusual wetness of the landward slope and to be certain that: (i) There are no indications of slides or sloughs developing; (ii) Wave wash or scouring action is not occurring; (iii) No low reaches of leave exist which may be overtopped; (iv) No other conditions exist which might endanger the structure. Appropriate advance measures will be taken to insure the availability of ade- 33 CFR Ch. 11 (7-1-98 Edition) quate labor and materials to meet all contingencies. Immediate steps will be taken to control any condition which endangers the levee and to repair the damaged section. (c) Flood walls —(I) Maintenance. Peri- odic inspections shall be made by the Superintendent to be certain that: (i) No seepage, saturated areas, or sand boils are occurring; (ii) No undue settlement has occurred which affects the stability of the wall or its water tightness; (iii) No trees exist, the roots of which might extend under the wall and offer accelerated seepage paths; (iv) The concrete has not undergone cracking, chipping, or breaking to an extent which might affect the stability of the wall or its water tightness; (v) There are no encroachments upon the right-of-way which might endanger the structure or hinder its functioning in time of flood; (vi) Care is being exercised to prevent accumulation of trash and debris adja- cent to walls, and to insure that no fires are being built near them; (vii) No bank caving conditions exist riverward of the wall which might en- danger its stability; (viii) Toe drainage systems and pres- sure relief wells are in good working condition, and that such facilities are not becoming clogged. Such inspections shall be made imme- diately prior to the beginning of the flood season, immediately following each major high water period, and oth- erwise at intervals not exceeding 90 days. Measures to eliminate encroach- ments and effect repairs found nec- essary by such inspections shall be un- dertaken -immediately. All repairs shall be accomplished by methods ac- ceptable in standard engineering prac- tice. (2) Operation. Continuous patrol of the wall shall be maintained during flood periods to locate possible leakage at monolith joints or seepage under- neath the wall. Floating plant or boats will not be allowed to lie against or tie up to the wall. Should it become nec- essary during a flood emergency to pass anchor cables over the wall, ade- quate measures shall be taken to pro- tect the concrete and construction joints. Immediate steps shall be taken 98 Corps of Engineers, Dept. of the Army, DoD to correct any condition which endan- gers the stability of the wall. (d) Drainage structures—(1) Mainte- nance. Adequate measures shall be taken to insure that inlet and outlet channels are kept open and that trash, drift, or debris is not allowed to accu- mulate near drainage structures. Flap gates and manually operated gates and valves on drainage structures shall be examined, oiled, and trial operated at least once every 90 days. Where drain- age structures are provided with stop log or other emergency closures, the condition of the equipment and its housing shall be inspected regularly and a trial installation of the emer- gency closure shall be made at least once each year. Periodic inspections shall be made by the Superintendent to be certain that: (i) Pipes, gates, operating mecha- nism, riprap, and headwalls are in good condition: (ii) Inlet and outlet channels are open; (iii) Care is being exercised to pre- vent the accumulation of trash and de- bris near the structures and that no fires are being built near bituminous coated pipes; (iv) Erosion is not occurring adjacent to the structure which might endanger its water tightness or stability. Immediate steps will be taken to repair damage, replace missing or broken parts, or remedy adverse conditions disclosed by such inspections. (2) Operation. Whenever high water conditions impend, all gates will be in- spected a short time before water reaches the invert of the pipe and any object which might prevent closure of the gate shall be removed. Automatic gates shall be closely observed until it has been ascertained that they are se- curely closed. Manually operated gates and valves shall be closed as necessary to prevent inflow of flood xacer. All drainage structures in levees shall be inspected frequently during floods to ascertain whether seepage is taking place along the lines of their contact with the embankment. Immediate steps shall be taken to correct any ad- verse condition. (e) Closure structures —(I) Mainte- nance. Closure structures for traffic openings shall be inspected by the Su- 99 § 208.10 perintendent every 90 days to be cer- tain that: (i) No parts are missing: (ii) Metal parts are adequately cov- ered with paint; (iii) All movable parts are in satisfac- tory working order; (iv) Proper closure can be made promptly when necessary; (v) Sufficient materials* are on hand for the erection of sand bag closures and that the location of such materials will be readily accessible in times of emergency. Tools and parts shall not be removed for other use. Trial erections of one or more closure structures shall be made once each year, alternating the struc- tures chosen so that each gate will be erected at least once in each 3-year pe- riod. Trial erection of all closure struc- tures shall be made whenever a change is made in key operating personnel. Where railroad operation makes trial erection of a closure structure infeasi- ble, rigorous inspection and drill of op- erating personnel may be substituted therefor. Trial erection of sand bag clo- sures is not required. Closure materials will be carefully checked prior to and following flood periods, and damaged or missing parts shall be repaired or re- placed immediately. (2) Operation. Erection of each mov- able closure shall be started in suffi- cient time to permit completion before flood waters reach the top of the struc- ture sill. Information regarding the proper method of erecting each individ- ual closure structure, together with an estimate of the time required by an ex- perienced crew to complete its erection will be given _ in the Operation and Maintenance Manual which will be fur- nished local interests upon completion of the project. Closure structures will be inspected frequently during flood periods to ascertain that no undue leakage is occurring and that drains provided to care for ordinary leakage are functioning properly. Boats or floating plant shall not be allowed to tie up to closure structures or to dis- charge passengers or cargo over them. (f) Pumping plants-0) Maintenance. Pumping plants shall be inspected by the Superintendent at intervals not to exceed 30 days during flood seasons and § 208.10 90 days during off -flood seasons to in- sure that all equipment is in order for instant use. At regular intervals, prop- er measures shall be taken to provide for cleaning plant, buildings, and equipment, repainting as necessary, and lubricating all machinery. Ade- quate supplies of lubricants for all types of machines, fuel for gasoline or diesel powered equipment, and flash lights or lanterns for emergency light- ing shall be kept on hand at all times. Telephone service shall be maintained at pumping plants. All equipment, in- cluding switch gear, transformers, mo- tors, pumps, valves, and gates shall be trial operated and checked at least once every 90 days. Megger tests of all insulation shall be made whenever wir- ing has been subjected to undue damp- ness and otherwise at intervals not to exceed one year. A record shall be kept showing the results of such tests. Wir- ing disclosed to be in an unsatisfactory condition by such tests shall be brought to a satisfactory condition or shall be promptly replaced. Diesel and gasoline engines shall be started at such intervals and allowed to run for such length of time as may be nec- essary to insure their serviceability in times of emergency. Only skilled elec- tricians and mechanics shall be em- ployed on tests and repairs. Operating personnel for the plant shall be present during tests. Any equipment removed from the station for repair or replace- ment shall be returned or replaced as soon as practicable and shall be trial operated after reinstallation. Repairs requiring removal of equipment from the plant shall be made during off -flood seasons insofar as practicable. (2) Operation. Competent operators shall be on duty at pumping plants whenever it appears that necessity for pump operation is imminent. The oper- ator shall thoroughly inspect, trial op- erate, and place in readiness all plant equipment. The operator shall be fa- miliar with the equipment manufactur- ers' instructions and drawings and with the "Operating Instructions" for each station. The equipment shall be oper- ated in accordance with the above - mentioned "Operating Instructions" and care shall be exercised that proper lubrication is being supplied all equip- ment. and that no overheating, undue 33 CFR Ch. II (7-1-98 Edition) vibration or noise is occurring. Imme- diately upon final recession of flood waters, the pumping station shall be thoroughly cleaned, pump house sumps flushed, and equipment thoroughly in- spected, oiled and greased. A record or log of pumping plant operation shall be kept for each station, a copy of which shall be furnished the District Engi- neer following each flood. (g) Channels and toodways—(1) Main- tenance. Periodic inspections of im- proved channels and floodways shall be made by the Superintendent to be cer- tain that: (i) The channel or floodway is clear of debris, weeds, and wild growth; (ii) The channel or floodway is not being restricted by the depositing of waste materials, building of unauthor- ized structures or other encroach- ments; (iii) The capacity of the channel or floodway is not being reduced by the formation of shoals; (iv) Banks are not being damaged by rain or wave wash, and that no slough- ing of banks has occurred; (v) Riprap sections and deflection dikes and walls are in good condition: (vi) Approach and egress channels ad- jacent to the improved channel or floodway are sufficiently clear of ob- structions and debris to permit proper functioning of the project works. Such inspections shall be made prior to the beginning of the flood season and otherwise at intervals not to exceed 90 days. Immediate steps will be taken to remedy any adverse conditions dis- closed by such inspections. Measures will be taken by the Superintendent to promote the growth of grass on bank slopes and earth deflection dikes. The Superintendent shall provide for peri- odic repair and cleaning of debris ba- sins, check dams, and related struc- tures as may be necessary. (2) Operation. Both banks of the chan- nel shall be patrolled during periods of high water, and measures shall be taken to protect those reaches being attacked by the current or by wave wash. Appropriate measures shall be taken to prevent the formation of jams of ice or debris. Large objects which be- come lodged against the bank shall be removed. The improved channel or floodway shall be thoroughly inspected 100 Corps of Engineers, Dept. of the Army, DoD immediately following each major high water period. As soon as practicable thereafter, all snags and other debris shall be removed and all damage to banks, riprap, deflection dikes and walls, drainage outlets, or other flood control structures repaired. (h) Miscellaneous facilities—(1) Mainte- nance. Miscellaneous structures and fa- cilities constructed as a part of the protective works and other structures and facilities which function as a part of, or affect the efficient functioning of the protective works, shall be periodi- cally inspected by the Superintendent and appropriate maintenance measures taken. Damaged or unserviceable parts shall be repaired or replaced without delay. Areas used for ponding in con- nection with pumping plants or for temporary storage of interior run-off during flood periods shall not be al- lowed to become filled with silt, debris, or dumped material. The Superintend- ent shall take proper steps to prevent restriction of bridge openings and, where practicable, shall provide for temporary raising during floods of bridges which restrict channel capac- ities during high flows. (2) Operation. Miscellaneous facilities shall be operated to prevent or reduce flooding during periods of high water. Those facilities constructed as a part of the protective works shall not be used for purposes other than flood pro- tection without approval of the Dis- trict Engineer unless designed therefor. (Sec. 3, 49 Stat. 1571. as amended: 33 U.S.C. 701c) 19 FR 9999. Aug. 17, 1944: 9 FR 10203, Aug. 22, 19441 § 208.11 Regulations for use of storage allocated for flood control or navi- gation and/or project operation at reservoirs subject to prescription of rules and regulations by the Sec- retary of the Army in the interest of flood control and navigation. (a) Purpose. This regulation pre- scribes the responsibilities and general procedures for regulating reservoir projects capable of regulation for flood control or navigation and the use of storage allocated for such purposes and provided on the basis of flood control and navigation, except projects owned and operated by the Corps of Engi- § 208.11 neers; the International Boundary and Water Commission, United States and Mexico; and those under the jurisdic- tion of the International Joint Com- mission, United States, and Canada, and the Columbia River Treaty. The in- tent of this regulation is to establish an understanding between project own- ers, operating agencies, and the Corps of Engineers. (b) Responsibilities. The basic respon- sibilities of the Corps of Engineers re- garding project operation are set out in the cited authority and described in the following paragraphs: (1) Section 7 of the Flood Control Act of 1944 (58 Stat. 890. 33 U.S.C. 709) di- rects the Secretary of the Army to pre- scribe regulations for flood control and navigation in the following manner: Hereafter, it shall be the duty of the Sec- retary of War to prescribe regulations for the use of storage allocated for flood control or navigation at all reservoirs constructed wholly or in part with Federal funds pro- vided on the basis of such purposes. and the operation of any such project shall be in ac- cordance with such regulations: Provided. That this section shall not apply to the Ten- nessee Valley Authority, except that in case of danger from floods on the lower Ohio and Mississippi Rivers the Tennessee Valley Au- thority is directed to regulate the release of water from the Tennessee River into the Ohio River in accordance with such instruc- tions as may be issued by the War Depart- ment. (2) Section 9 of Public Law 436-83d Congress (68 Stat. 303) provides for the development of the Coosa River, Ala- bama and Georgia, and directs the Sec- retary of the Army to prescribe rules and regulations for project operation in the interest of flood control and navi- gation as follows: The operation and maintenance of the dams shall be subject to reasonable rules and regulations of the Secretary of the Army In the interest of flood control and navigation. NOTE: This Regulation will also be applica- ble to dam and reservoir projects operated under provisions of future legislative acts wherein the Secretary of the Army is di- rected to prescribe rules and regulations in the interest of flood control and navigation. The Chief of Engineers. U.S. Army Corps of Engineers, is desiggnated ti.e dully authorized representative of the Secretary of the army 101 Appendix C: Agreement between The City of Renton and The Boeing Company MA`S'-30-2002 14:46 CITY OF RENTON PEPW 425 430 7241 P.01i15 AGREEMENT between THE CITY OF RENTON THE BOEING COMPANY for THE CEDAR RIVER SECTION 205 FLOOD DAMAGE REDUCTION PROJECT Post -IV Fax Note 7671 Date F/I. /o X. pag s 15 ' 77m Shdw From Qr Sakm6k Co ioeoc. tl5*A C E co. k f o h Phone z Phone i Fazx Zo6 lb6 4-4V Faxz MAY-30-2002 14: 47 C I TY CIF RENTON PEPW 425 4'0 7241 P. 02115 THIS AGREEMENT, hereby made and entered into this ,Tr(. 1998) by and between the CITY OF RENTON, WASH NGTON, a municipal corporation of th State of Washington and the BOEING COMPANY a Delaware Corporation. WHEREAS, the Government of the United States of America has appropriated funds to provide for dredging, levees construction and modification of the South Boeing Bridge for a flood damage reduction project along the lower Cedar River in the City of Renton, and environmental mitigation measures for said flood damage reduction project, WHEREAS, the Government of the United States of America appropriation is administered by the United States Army Corps of Engineers, and the City of Renton will enter into an agreement (PCA) with the United States Army Corps of Engineers for construction and maintenance of said flood damage reduction project, WHEREAS, the United States of America appropriation is contingent upon a match of up to $5,000,000 from non -Federal sources, WHEREAS, the United States Army Corps of Engineers will perform the initial construction of said flood damage reduction project, and perform other obligations as described herein, and in the Project Cooperation Agreement (PCA) between the City and the United States Army Corps of Engineers, WHEREAS, the City of Renton wili perform certain tasks, provide 'funding including real estate for said flood damage reduction project, and perform other obligations as set forth in this Agreement, WHEREAS, Boeing will design and construct said bridge modifications, and perform such other obligations as set forth in this Agreement WHEREAS, Boeing desires to cooperate with the City of Renton in providing flood protection for the lower Cedar River, and WHEREAS, Boeing is willing to provide an equal share of the cost for construction and maintenance of said flood damage reduction project with the City of Renton. NOW THEREFORE, in consideration of the mutual covenants herein it is agreed as follows AGREEMENT BET\lv'EEN THE CITY OF RENTON AND THE BOEING COMPANY - Paee 2 MA`S'-30-2002 14:47 CITY OF RENTON PEPW 425 4_70 7241 P.03-'15 SECTION 1 : DEFINITIONS For purposes of this Agreement, the terms underlined below shall have the following meanings: Agreement - This Agreement; Best Efforts - To make all reasonable, legal, practicable, efforts; in good faith and with an understanding that time is of the essence; to facilitate, assist, and expedite the work, procedures, communication, and resolution of issues required to assure the success of the project within the known constraints. BOein - - The Boeing Company, a Delaware corporation. Boeing Project Manager - That individual or his/her designated representative(s) who shall be appointed by the Boeing Commercial Airplane Group Renton Division (BCAGRD), Director of Facilities, to carry out the responsibilities set forth in this Agreement. Boeing, Senior Manager The Boeing Senior Manager of Renton Facilities and Plant Engineering, City - The City of Renton, Washington, a municipal corporation and an optional code City of the State of Washington. City Administrator of Plannin uildin ublic Works Department, or his/her designee - The head of the department responsible for coordinating and facilitating City personnel and contractors directly involved with the project management, construction, and all applicable City permits and inspections. City Project Manager - That individual or his/her designated representative(s) who shall be appointed by the City Administrator of Planning/Building/Public Works to carry out the responsibilities set forth in this Agreement. City Council - The legislative body of the City of Renton comprised of seven (7) members elected at large with duties as prescribed in RCW 35A. 12.010 et seq., and as provided by law. City Utility Systems Division Director - The head of the Utility Systems Division of the City Planning/Building/Public Works Department who is responsible for coordinating and facilitating the management of the Project and the carrying out of responsibilities set forth in this Agreement. DNR - The Washington State Department of Natural Resources, a public agency of the State of Washington organized under Chapter 43,30 RCW. Dredging - The removal of sands, gravels; other unconsolidated sedimentation deposits from an in - water location using a clamshell, dragline, hydraulic mechanisrrt, or other means. Disposal - The permanent relocation of dredged materials, including unwanted sub -surface materials such as logs, stumps, and rootballs_ EIS - The Final Environmental impact Statement for the project initial construction and maintenance FCSA - The Feasibility Cost Share Agreement between the USACE and the City of Renton to provide initial planning, initial design and EIS for the project. AGREEMENT BETWEEN THE CITY OF RENTON AND THE BOEING CONIPAN7Y - Page 3 MAY-30-2002 14:47 CITY OF RENTON PEPW 425 430 7241 P.04i15 Inner Harbor Line - A line defining the boundary of an area to be protected for harbor uses. Coincidental with property o�med by Boeing (landward) and the State of Washington (lakeward) managed by the DNR. Levees - The placement of fill and/or structures for the containment of floodwaters. PCA - Project Cooperation Agreement. A specific agreement between the United States Army Corps of Engineers (USACE) and the City of Renton required by the USACE prior to construction of the project. Permitting, Pernut Review, Permit Processing - The procedures or process of analyzing or deciding upon any license, permit, approval or concurrence by the City with respect to the project. Plant - The Boeing Commercial Airplane Group Plant located at 800 Park Avenue North, Renton, WA. Project - The project scope as set forth in Exhibit "A', including dredging of the lower approximately 1.25 miles of the Cedar River, levees along the lower approximately 1.25 miles of the Cedar River, the modification of the South Boeing Bridge to include a lifting mechanism, required environmental mitigation measures and maintenance over the project life as identified in the PCA. Project Cost Sharing Matrix - The proposed distribution of project costs among the project funding partners as set forth in Exhibit "C", which defines the amount of funding to be provided by each member of the project funding partnership. Each partners share of the cost will depend on the final number of members that join the project funding partnership. Project cost will be distributed equally among the project funding partners. Project -Schedule - The schedule agreed to by the City and Boeing for permitting and constructing the project, as set forth in Exhibit "B". SEPA The State Environmental Policy Act, Chapter 43.21C RCW, and associated regulations, Chapter, 197-11 WAC. USACE - The United States Army Corps of Engineers, a public agency of the United States of America. Water Dependent Use - Referring to the uses or activities which necessarily require a shoreline location as a major and integral part of the use or activity. SECTION 2 : PURPOSE OF THIS AGREEMENT The purpose of this Agreement is to set forth the respective rights and obligations of Boeing and the City regarding the Project and its funding, The Project scope consists of the engineering design, permitting, project management, dredging the Cedar River, the construction of levees, the modification of the South Boeing Bridge to fit it with a lifting mechanism), and project maintenance as illustrated in Exhibit "A". Included is the assessment, design, perntting, construction and maintenance of aquatic and avian habitat incorporated as replacement mitigation for that which will be lost or displaced by the project dredging and levees. AGREEMENT BETWEEN THE CITY OF RENTON AND THE BOEING COMPANY - Page 4 MAY-3O-21ot_21 14:48 CIT`i CIF RENTON PEPW 425 430 7241 P.05%11� Boeing and the City will share equally in the non -Federal portion of the project cost, with reduction of said non -Federal portion by any additional partnerships and/or sale of the dredged material. Boeing will perform design and construction of the South Boeing Bridge Modifications (as illustrated in Exhibit "A") and required relocation of Boeing owned existing onsite utilities as part of the project. Notwithstanding the foregoing, the amount payable by Boeing will not exceed One Million Fifty Thousand Dollars ($1,050,000), provided, however (1) if additional partners beyond Boeing, the City and King County agree to share costs for the Project, the share paid by such partners shall be applied to the reduction of the shares of the City and Boeing ratably; (2) sale of dredged material which results in net proceeds beyond S853,000 shall be applied to reduce the shares of each partner ratably to such partner's share of costs; (3) any increase in costs of the South Boeing Bridge Modifications, not including design costs and the costs of the hydraulic truck and any equipment paid for by the City, above $1,040,000, which are due to requirements of Boeing over those provided for in this Agreement will be paid by Boeing; and (4) if the total project cost exceeds S8,515,000, for any other reason, the parties will in good faith attempt to agree (without either party being obliged to agree) on how such additional costs will be shared. The scope and intent of this Agreement is limited to the terms and conditions herein stated and shall not be construed to provide or allude to moneys, property rights, administrative procedures or physical restoration in any amount, kind or extent beyond those herein specified; nor, shall the provisions of this Agreement be construed to apply, in any manner, to any business between the parties other than those relating to the dredging of the river, the construction of the levees, modification of the South Boeing Bridge, requisite mitigation measures and project maintenance. SECTION 3 : TERM AND EFFECTIVE DATE OF AGREEMENT This agreement shall commence on the date first endorsed by both parties and, unless earlier terminated pursuant to Article 12, shall terminate at the end of the project life as specified in the PCA. SECTION 4 : PROJECT ADMINISTRATION The work described herein shall be performed under the coordination of the Boeing Company's Project Manager, and the City of Renton's Project Manager, who will provide assistance and guidance to the other party necessary in accordance with the terms of this Agreement, 4.1 Common Overall Responsibilities. The Boeing Commercial Airplane Group Renton Division (BCAGRD), Director of Facilities and Plant Engineering, and the City Administrator of the Planning/Building/Public Works Department shall use collaborative problem solving and negotiation techniques to review and attempt to resolve perceived conflicts that cannot be resolved by the Project Managers, or the Division Committee. 4.2 Common Division Manager Responsibilities. The BCAGRD Senior Manager of Facilities and Plant Eneineerina and the City Utility Systems Division Director shall: AGREEMENT BETIYEEN THE CITY OF RENTON AND THE BOEING COMPATvY - Pa[ze 5 MAY-30-2002 14:48 i_1T' Or RENTON PBPW 425 430 ^241 P.06'15 4.2.1 Serve as the point of contact and liaison during project implementation for each party. This responsibility may be delegated to other staff members for particular functions or purposes by mutual consent of the City Utility Systems Division Director and the BCAGRD Senior Manager of Facilities and Plant Engineering. This responsibility shall not abridge statutory or permit issuance responsibilities of other City officials, boards, or commissions. 4.2.2 Use collaborative problem solving and negotiation techniques to review and attempt to resolve perceived conflicts that cannot be resolved by the Project Managers. 4.2.3 Review and revise, as necessary, the Project Schedule set forth in Exhibit "B". 4.3 Common Project Manager Responsibilities.. The Boeing Company Project Manager shall have responsibility for the project for the Boeing Company. Tile City Project Manager shall have responsibility for the project for the City. The Project Managers shall: 4.3.1 Provide each other, within a reasonable amount of time, with current and necessary information as requested that pertains to their respective responsibilities under this Agreement, in order to expedite review. 4.3.2 Use collaborative problem solving and negotiation techniques to identify and attempt to resolve issues related to project implementation. 4.3.3 Convene meetings as necessary with the Division and Department Committees to discuss substantive issues, the Project Schedule, and activities related to the design, construction, and implementation of the project. 4.3.4 Meet with any City or Boeing Company technical, advisory, design review, or citizen advisory committees or other interested persons as needed to carry out the purposes of this Agreement. 4.3.5 Accommodate or utilize, —upon request, reasonable opportunities to brief the City Council or the management of the Boeing Company on the status of the project. SECTION 5. RESPONSIBILITIES OF THE CITY OF RENTON The City shall be responsible for the following: 5.1 Planning, engineering, (other than design and construction of the modification of the South Boeing Bridge), permitting and project management for the preparation of the construction plans, specifications, and cost estimates for the dredging, levees, mitigation and restoration portion of the contract for the project life as provided through FCSA and PCA between The City of Renton and the U.S. Army Corps of Engineers. 5.2 Contracting, including advertising, bidding, selection and award of dredging, levees and mitigation construction contract as provided through the PCA between The City of Renton and the U.S. Army Corps of Engineers. (Excluding those portions of the construction of the modification of the South Boeing Bridge to be done by Boeing) 5.3 Administering, inspecting and paying for the dredging, levee and mitigation construction contract as provided through the PCA between The City of Renton and the U.S. Army Corps of Engineers. (Excluding those portions of the construction of the modification of the South Boeing Bridge to be done by Boeing) �.4 Securing all necessary perrnits and approvals for the Project, including the City's Fill and Grade permit, Building Pernut (except the City Building permit for the Boeing Modifications to the South Boeing Bridge and utility relocation's), SEPA compliance in concurrence with AGREEINIENT BETWEEN T1;TE CITY OF RENTON AND THE BOEING COMPANY - Page 6 MAY-30-2002 14:48 CITY OF PENTON P$PW 425 430 7241 P.07.115 Boeing, and Shorelines Master Plan permit; the Army Corps of Engineers permits, the Washington State Department of Fisheries Hydraulics Project Approval permit, the Washington State Department of Ecology's Temporary Water Quality Modification permit, and the l) R permits as provided through the PCA between The City of Renton and the U.S. Army Corps of Engineers. 5.5 Verifying that the project and its construction and maintenance are at all times in compliance with Federal, State, and local laws, and the PCA between The City of Renton and the U.S. Army Corps of Engineers. (Excluding those portions of the maintenance of the South Boeing Bridge to be done by Boeing) 5.6 Maintaining accurate records of the planning, design, sediment sampling and analysis, permitting, and dredging and construction that are consistent with the USACE funding Agreement. 5.7 Satisfying Project mitigation identified for the project elements of this project as provided through the PCA between The City of Renton and the U.S. Army Corps of Engineers.. 5.8. Providing invoices to Boeing for payment of work in accordance with Section l 1 herein and Exhibit "C". 5.9 Paying for the design and engineering consultant for the work on the South Boeing Bridge modifications at the expense of approximately $280,000. The parties have chosen a design and engineering consultant for the work on the South Boeing Bridge modifications at the expense of approximately $280,000.00. The City of Renton will pay such amount. 5.10 Supplying a satisfactory operations and maintenance manual for the project in collaboration with Boeing, 5.11 Paying for the truck and equipment on the truck used for the hydraulic jacking of the South Boeing Bridge, which purchase shall be handled by Boeing in coordination with the City. SECTION 6 : RESPONSIBII.=S OF BOEING Boeing shall be responsible for the following 6A Providing the design and construction for the modification of the South Boeing Bridge. Providing all maintenance of the South Boeing Bridge and its modifications. 6.2 Designing and constructing utility relocation for those utilities held by Boeing requiring relocation due to the project. 6.3 Providing the City with funding in the amount determined pursuant to Section 2. 6.4 Keeping records: Boeing shall assist the City in maintaining accurate records of all work related to the Project necessary as supporting documentation for compliance with the all project funding Agreements. 6.5 Granting the City access over and across the north and south Boeing bridges for maintenance purposes. The City shall provide notice of the need for maintenance access, except in the event of an emergency in which case immediate access will be allowed. This agreement grants the City access over and across Boeing property for maintenance purposes. Boeing will develop. in cooperation with the City, the required time constraints and logistic; associated with any required access prior allowing maintenance access. AGREEi\1ENT BET1k'EEN THE CITY OF RENTON AND THE BOEING COTNIPANY - page 7 MAY-30-2002 14:49 CITY OF RENTON PBPW 425 430 7241 P.02/15 I - SECTION 7 :TIMING OF PROJECT The City and the Boeing Company will make all best efforts to assure that construction can occur and be completed in 1998 pursuant to the Project Schedule attached as Exhibit "B". SECTION 8 :ACCESS TO SITE The City of Renton, its contractor and authorized personnel, and agents of the City are hereby granted the right and permission of access and use of that portion of the Boeing Company property necessary for the removal and transport of dredge spoils and fill materials, levee construction and in order to make modification to the South Boeing Bridge as shown in Exhibit E attached hereto across the north and south Boeing bridges. Access to Boeing property shall be in accordance with Boeing Company Rules and Security requirements, and shall be limited to the duration of the project or during maintenance. SECTION 9 :LEGAL RELATIONS - HOLD HARMLESS 9.1 General Indemnity. To the maximum extent permitted by applicable law, the City of Renton and The Boeing Company shall protect, indemnify, defend and 'hold harmless each other, and their respective employees, agents, contractors, subcontractors, officers, directors, attorneys, successors and assigns, from and against any and all liabilities, damages, claims, demands, judgments, losses, harm, costs, expenses, suits or actions, including but not limited to appeals, caused by the negligent acts, omissions or intentional misconduct of the indemnifying party, its agents, employees, contractors, subcontractors, officers, directors, attornevs, successors or assigns, arising out of or in connection with or as a result of this Agreement or the performance by the indemnifying party of any of its obligations hereunder. The City and Boeing shall, to the maximum extent allowed through agreement between The City of Renton and the U.S. Army Corps of Engineers, ensure that each of their respective contractors and their subcontractors who perform work in connection with this Agreement, provide an indemnity, enforceable by and for the benefit of the City and Boeing, causing each such contractor and subcontractor to indemnify and hold harmless the City of Renton, Boeing, their respective subsidiaries, and their directors, officers, employees and agents from and against all actions, causes of action, liabilities, claims, suits, judgments, liens, awards, and damages, of any kind and nature whatsoever (hereinafter "Claims"), for property damage, personal injury or death (including without limitation, injury or death to employees of such contractors or any subcontractors) and expenses, costs of litigation and counsel fees related thereto, or incident to establishing the right to indemnification, to the extent such claims arise out of the negligence or intentional misconduct of such contractor or subcontractor in performance of work in conjunction with this Agreement. AGREEMENT BETw-EEN THE CITY OF RENTON AND THE BOEING COMPANY - Paae 8 • MAY-30-20u02 14:49 CITY OF PENTON PEPW 425 430 7241 P.09,15 The City and Boeing shall cause, to the extent allowed by the USACE, each such contractor and subcontractor to waive any immunity under industrial insurance, whether arising from Title 51 of the Revised Code of Washington or any other statute or source to the extent of the indemnity required in the paragraph above, and the City and Boeing do hereby similarly waive, as it relates to each other, any immunity under Title 51 RCW. In the event that either Boeing or the City is successful in proving that the foregoing indemmity is limited by RCW 4.24.115, the successful party shall defend, indemnify and hold harmless the Indemnitees to the full extent allowed by RCW 4.24,115, SECTION 10 : LEGAL RELATIONS - INSURANCE The City and Boeing shall endeavor, to the extent allowed through agreement between The City of Renton and the U.S. Army Corps of Engineers, to ensure that each of their respective contractors and any of their subcontractors who perform work in connection with this Agreement, provide Commercial General Liability insurance with limits of not less than One Million Dollars ($1,000,000) per occurrence, Two Million Dollars ($2,000,000) general aggregate, for bodily injury, including death and property damage combined. Such insurance shall contain coverage for all premises and operations, broad form property damage, contractual liability and products and completed operations insurance with limits of not less than One Million Dollars ($1,000,000) per occurrence and in the aggregate for up to a maximum of two -years following the completion and final acceptance of the project. Any policy which provides the insurance required under this paragraph shall be endorsed to name Boeing, its subsidiaries, and their directors, officers, agents, and employees, and the City, its elected officials, agents and employees, as additional insured with respect to liability arising out of or in any why related to contractor's or any subcontractor's work in connection with this Agreement without qualification, limitation or reservation. If licensed vehicles will be used by any of the City's or Boeing's contractors or any of their subcontractors in connection with this Agreement, the City and Boeing shall ensure that each such contractor and subcontractor carries and maintains Automobile Liability Insurance covering all velucles, whether. owned, hired, rented, borrowed or otherwise, with limits of liability of not less than One Million Dollars ($1,000,000) per occurrence combined single limit for bodily injury and property damage. SECTION 11 : PAYMENT OF FUNDS Subject to the conditions of this agreement, Boeing will make payment on invoices submitted by the City of the amounts provided for in Section 2, SECTION 12 : ABANDONMENT OF PROJECT AND TERMINATION OF AGREEMENT In the event of unanticipated financial or regulatory impediments, this Agreement may be terminated by Boeing or the City upon thirty (30) days advance written notice, only prior to the City signing the USACE PCA. After execution of the PCA, the agreement will remain in effect until termination of AGREE-MENT BETWEEN THE CITY OF RENTON AND THE BOEING COVPANY - Page 9 'MAY-13O-2002 14:50 CITY OF RENTON PBPW 425 430 7241 P.10/15 the PCA. Each party shall be responsible for fulfilling any obligation that has accrued prior to the date of termination. Section 9 (and all other provisions of this Agreement which may reasonably be interpreted or construed as surviving the completion, cancellation or termination of this Agreement) shall survive the completion, cancellation or termination of this Agreement. SECTION 13: WAIVER No waiver by either party of any term or condition of this Agreement shall be deemed or construed as a waiver of any other term or condition. No waiver shall be effective unless in writing. SECTION 14: AMENDMENTS Any amendments or modifications of this Agreement shall be made in writing executed by the parties hereto, and neither the City or Boeing shall be bound by verbal or implied agreements. SECTION 15 :DISPUTE RESOLUTION 15.1 Resolution by the Project Managers. The Project Managers shall use their best efforts to resolve disputes and issues arising out of or related to the project. 15.2 Boeing Company/City of Renton Department and Division Committees. The Boeing Company and the City shall establish Department and Division Committees that will meet as necessary to resolve issues related to the project and the carrying out of the provisions of this Agreement. The Project Managers will jointly provide staff support to the Department and DiNrision Committees by facilitating its meetings and by establishing mutually agreed upon meeting dates and agendas. The Department Committee shall consist of the Boeing Commercial Airplane Group Renton Division (BCAGRD), Director of Facilities or their designated representative and the City Administrator of the Planning/Building/Public Works Department, The Division Committee shall consist of the BCAGRD Senior Manager of Facilities and Plant Engineering and the City Utility Systems Division Director. 15.3 Resolution by the BCAGRD Senior Manager of Facilities and Plant Engineering and the City Utility Systems Division Director. In the event that disputes cannot be resolved by Project Managers the BCAGRD Senior Manager of Facilities and Plant Engineering and the City Utility Systems Division Director (together the "Division Committee") will apply their best efforts to resolve disputes and other matters between the Boeing Company and the City arising out of or related to the project. Each of the Division Managers will consult with responsible staff and officials from their respective organizations regarding existuig requirements or other policies and procedures before attempting to resolve disputes. 15.4 Resolution by the BCAGRD Director of Facilities and Plant Engineering and the City Administrator of Plaruung/Tuilding/Public Works Department. If the Division Committee is unable to resolve a matter within five (5) days of the time such matter is properly referred to them; the Division Managers shall ask the BCAGRD Director of Facilities and the City Administrator of the PlanninpiBuilding/Public Works Department (together the "Department AGREENIENT BETWEEN THE CITY OF RENTON AND THE BOUNG COMPANY - Page 10 MAY-30-2002 14:50 CITY OF RENTON PBPW 425 430 7241 P.11:15 Committee") to resolve the dispute. In the event of an emergency, a project dispute may be referred directly to the Department Committee for resolution. 15.5 Exhaustion of the Dispute Resolution Section. The Boeing Company and the City agree to exhaust each of these procedural steps before seeking to resolve disputes in a court of law or other tribunal. 15.6 Dispute resolution shall be included in every contract or subcontract unless prohibited by the U.S. Army Corps of Engineers. IN WITNESS WI-IF-REOF, the parties hereto have executed this agreement on the day last written below. CITY >Ii.ENTON MayVrJesse Tanner Date: �v ATTEST: Marilyn Jr. te6in City Clerk AP D AS T.FFO: Lawrence J.Warren City Attorney Date: 2/ city l 5.24. as. THE BOEING COMPANY Director ot Facilities and ervices, Boeing Commercial Airplane Group Renton Division Date: q /; AGREEMENT BETWEEN THE CITY OF RENTON AND THE BOEING COMPANY - Page 11 MAY--70-2002 14.50 CITY OF RENTiJN PEPW 425 43e 7241 P.12!15 EXHIBIT "A": PROJECT SCOPE The purpose of this project is to reduce flood hazards and associated flood damages caused by flooding of the Cedar River in Renton. The project consists of the following: A, Dredging to a depth of approximately four feet below the 1995 channel bottom from Lake Washington to the Logan Avenue North Bridge over the Cedar River, then tapering to a dredge depth of zero feet at or near the Williams Avenue North Bridge over the Cedar River at approximately river mile 1.25. B. Construction of levees/floodwalls along the right and left banks of the Cedar River from Lake Washington to approximately river nine 1.25, including restoration. C. Modification of the South Boeing Bridge with a hydraulic system that will jack the bridge up to allow flood flows to pass during extreme flood events. Boeing shall have sole authority for contract administration and construction management over the South Boeing Bridge. D. Planting_of habitat enhancement in the project construction area and the construction of a ground water salmonid spawning channel on City owned property east of the Maplewood Golf Course to mitigate for project impacts, E. Maintenance and operation of the project following construction. Maintenance dredging will be required. whenever sediment accumulation meets or exceeds the maximum acceptable figure for sediment accumulation in the operations and maintenance manual if financially feasible and the necessary permits can be obtained Annual maintenance of the South Boeing Bridge jacking system, floodwalls/levees and vegetation will also be required over the life of the project. Costs associated with maintenance and operation are separate from the total initial project construction cost. AGREEMENT BETWEEN THE CITY OF RENTON A -ND THE BOEING COMPANY - Page 12 MAY-_10-2002 14:51 CITY CIF RENTON PSPW 425 4'0 7241 P.1',/15 EXHIBIT "B" : PROJECT SCHEDULE The following is the General Project Schedule provided by the U.S. Army Corps of Engineers, Seattle Branch dated March 9, 1998. TASKS COMPLETION DATE USACE request project approval and construction funds 3/9/98 USACE approval of project and construction funds from HQ 3/10/98 Complete Plans and Specs. for Phase I Construction 3/13/98 Obtain all necessary local, state and federal permits for the project 4/17/98 Execute USACE Project Coo eration Agreement 4/20/98 Certify Real Estate 5/5/98 Phase 1 Construction - Dredging, Bridge & Mitigation Route USACE Form 1. to authorize advertisement 3/23/98 Advertise for Phase I construction bids 4/07/98 Open Phase 1 construction bids 5/07/98 Local sponsor funding prodded for non-federal share of project cost 5/11/98 Award Phase I construction contract 5/21/98 Notice to procced with Phase i construction is issued 6/3/98 Phase 1 construction starts 6/15/98 Phase 2 Construction - Levees & Floodwalls Route USACE Form 1 to authorize advertisement 5/27/98 Advertise for Phase 2 construction bids 6/10/98 Open Phase 2 construction bids 7/17/98 Award Phase 2 construction contract 7/31/98 Notice to proceed with Phase 2 construction is issued 8/13/98 Phase 2 construction starts 8/24/98 Phase 2 flood control facilities are operational 11/15/98 Complete restoration of project area and mitigation measures. Make final pa-ment to contractor 6/ 1/99 Start Project monitoring 6/2/99 Perform project 0&M as required by project O&M manual. On -going AGREENTENT BETWEEN THE CITY OF RENTON AND THE BOEING COMPANY - Page 13 MAY-30-22002 14:51 CITY OF RENTON PBPW 425 430 7241 P.14i15 EXHIBIT "C" : PROJECT COST SHARING MATRIX Attached is the project cost sharing matrix. AGREEMENT BETWEEN THE CITY OF RENTON AND THE BOEING COMPANY - Page 14 EXHIBIT " C" PROJECT COST SHARING MATRIX AGREEMENT between THE CITY OF RENTON and THE BOEING COMPANY fo r THE CEDAR RIVER SECTION 205 FLOOD DAMAGE REDUCTION PROJECT COST SHARING MATRIX SOURCE CONSTRUC'1TON CITY OF RENTON — - - BOEING COMPANY - - KING COUNTY - - - - SALB OF DREDGED MATERIAL—� TOTAL NUN -FEDERAL SHARE OMRR&R (ANNUAL COST, 1998 DOLLARS) CITY OF RENTON BOEING COMPANY SALE' OF DREDGED MATERIAL TOTAL NON-FEDERAL SNARE - PERCENT OF RENTON I BOEING I ESTIMATED NET PERCENTAGE SHARE OF NON-FEDERAL SHARE (1) SO% 50% -- 100% 5G% 100% _ 26 % 26 % 21% 100% 36% 100% ESTIMATED NET AMOUNT $ 1,048,667 $ $ 1.048,667 -- 1,048,667 $ S 853,000 3,999,000 $ 92,000 $ 253,000 (1) Ealhisted not amamts and eslknated pemenl shares based upon the Army Corps of Enpneen oust esthiate in the Ceder Rhror Seolbn 205 Detailed Pm)ed Report (June I N7), a preliminary Commitment of funds from King County, and a preliminary estimate of the value of the dredged material. Each partner's share of the total project cost will be based upon actual construction and maintenance costs and percent share. The value of the dredged material used to determine 'sale of dredged material' was estimated to be $5.40 per cubic yard based upon preliminary market research. Each partner's share of the total oonstruction and maintenance costs will be based on actual value of sold dredged material. These numbers are for generalized comparison purposes only. The maintenance cost assume maintenance is done once every ten years. If malntenarn.;e is stone more frequently (once every three years as estimated by the USACE), the annual maintenance costs will increase. AGRMNT2.XIS Proposal 518/98 1:54 PM C, -d' -r 1 z, m O z iI Appendix D: the WEST Report CEDAR RIVER, WASHINGTON OPERATIONS AND MAINTENANCE MANUAL HYDROLOGY AND HYDRAULICS INFORMATION FINAL REPORT Prepared for: U.S. Army Corps of Engineers Seattle District P.O. Box 3755 Seattle, WA 98124-2255 Prepared by: WEST Consultants, Inc. 12509 Bel -Red Road, Suite 100 Bellevue, WA 98005 (425) 646-8806 August 13`h, 1999 TABLE OF CONTENTS SECTION 1. INTRODUCTION.......................................................................1 1.1 Background.................................................................................................1 1.2 Scope of Work............................................................................................. I SECTION 2. MONITORING SEDIMENT DEPOSITION ...........................2 2.1 Purpose.......................................................................................................2 2.2 Cross -Section Locations............................................................................. 9 2.3 Survey Points..............................................................................................4 2.4 Survey Timing............................................................................................. 2.5 Abbreviated Survevs................................................................................... 6 SECTION 3. TIMING OF MAINTENANCE DREDGING ...........................7 3.1 Purpose.......................................................................................................7 3.2 HEC-RAS Model Development................................................................... 7 3.3 Estimating Bed Elevation Changes at a Cross -Section .............................. 8 3.4 Timing of Dredging.................................................................................. 11 SECTION 4. RAISING OF THE SOUTH BOEING BRIDGE ...................13 4.1 General.....................................................................................................13 4.2 Action Flow Level..................................................................................... 13 4.3 Flood Warning System..............................................................................14 4.4 Monitoring Flood Flows........................................................................... 14 4.5 Raising South Boeing Bridge Sequence .................................................... 15 SECTION 5. REFERENCES..........................................................................17 LIST OF FIGURES Figure 1. Historic location of cross -sections (NHC, 1992)...................................3 Figure 2. Example of change in cross -sectional geometry .................................... 8 Figure 3. Estimate of forecasted cross-section geometry ....................................10 Figure 4. Example of determining when to dredge ............................................. 11 Figure 5. Example of surveying and dredging cycle ........................................... 12 Figure 6. Example of a rating curve at the South Boeing Bridge ....................... 13 LIST OF TABLES Table 1. NGVD reference marks on the Cedar River (NHC, 1992)....................4 Table 2. Mean Monthly Flow and Volume at the USGS Renton Gage (King County, 1993)........................................................................................ 6 Table 3. Cedar River flow at each warning phase.............................................14 Table 4. Sequence of action items for raising the South Boeing Bridge ...........15 SECTION 1. Introduction 1.1 Background The Seattle District, U.S. Army Corps of Engineers (USACE), contracted WEST Consultants, Inc., to provide hydrologic and hydraulic engineering input to an Operations and Maintenance (0&M) manual to be developed by the USACE for the Cedar River, at Renton, WA, Section 205 Flood Control Project. Services were contracted under Delivery Order No. 7 of Contract #DACW67-97-D-1016. 1.2 Scope of Work Specific tasks to be performed by WEST Consultants, Inc., are listed below and detailed in the following sections. • Develop methodology to periodically monitor sediment deposition in the reach of the river between the North Boeing Bridge and the Williams Avenue Bridge crossings (SECTION 2). • Develop a methodology which will be used to determine thresholds when maintenance dredging of the project reach is required to ensure channel capacity is provided for the authorized level of protection (100-year return period flood). It is desired to have a year lead- time for the permitting process (SECTION 3). • Develop a methodology which will monitor flood flows and determine when to begin procedures to raise the South Boeing bridge structure, thus preventing flow impingement and ensuring channel capacity to provide the authorized level of protection (SECTION 4). SECTION 2. Monitoring Sediment Deposition 2.1 Purpose The local sponsor (City of Renton) will be responsible for periodic monitoring of sediment deposition in the dredged reach of the Cedar River between the North Boeing Bridge upstream to Williams Avenue and determination of when maintenance dredging should occur. This section details the methods for surveying river cross -sections and monitoring sedimentation rates. The cross-section data will be used to determine the change in area at each cross-section and forecast an estimated average channel bed elevation for the future. As discussed in SECTION 3, the estimated future channel bed elevation will then be used to evaluate the available and future level of flood protection and the requirement for dredging. 2.2 Cross -Section Locations Historically, cross -sections have been surveyed at the locations shown in Figure 1. The survey of cross -sections at identical locations will facilitate long-term trend analysis. The change in cross - sectional area at these locations has already been estimated for two periods. from 1985 to 1991, and 1991 to 1997 (NHC, 1998). Cross -sections within the project area from the mouth of the Cedar River upstream to the Williams Avenue Bridge (NHC cross-section numbers 0.1 to 6502) should be surveyed in order to monitor the effects of dredging. The cross-section data are required for hydraulic analysis to determine the available_ and future level of flood protection (see SECTION 3). Cross -sections should be surveyed in a consistent manner in order to facilitate the process of comparing cross -sections over time. Appropriate survey data will be collected to allow permanent reference marks to be established on both the left and right banks to assist in ensuring that the cross-section alignment will be the same between subsequent surveys. This will also simplify the process of calculating the change in area at each cross-section. The location of these reference marks should be prominently marked and identified relative to easily recognizable landmarks so that they can be found quickly at the time of each survey. There are relatively few bridges in the project reach but there should be enough cross -sections at each bridge to define the hydraulic processes. Cross -sections are typically required at the upstream and downstream bridge facings, and at a distance both upstream and downstream from -2- Figure 1. Historic location of cross -sections (NHC, 1992) NHC Cross -Section Number 140 955 1665 2585 3460 3975 4037 4192 4732 5332 5644 6012 6502 6681 6931 7103 7483 7653 7845 8092 8402 8476 8596 8836 9446 10236 1115E USCOE all �! - Cross Sections Number" �..•--'` % `i., e 0.63 8.62 16.12 25.32 33.82 `n ✓` j V.t, . •,� �I i .. * :' , t tl tom' y ~ 39.01 Omen Thenrcr 39.64 41.14 46.54 > � s ��'� P9MC_ t - wit 5 -z � _ r` ' $.c'�i '.T.1el i'dr1.��,�qq t'[�• ��i�p°�6 56.43 � 2.44 . �' � �5� n� `� r?is•i 11SiA5ci►t11 XC4'h :la 1 R: ' 60.12 65.01 66.81 'r 1 yy f� i 14 :t #41k" 61j t'i 69.31 _. _ ... , :�^ ; . 4 a►!:L IC `JJfDa �48� 71.03 .`i, ls_ a Fi . �,.f ;. C'�"%1' E>�11*JT�1A ii171L�i/f�1Si�l 'Sl _ •F 7483 l� : jTJ' Ll: tUt'�� (t.T �7pJ E Br QG-. I 4 .� _ ,� i\HC 1 e` U--05 s j Houser \1'ny CLy Hall L Library N, M K 384 14 76.82 ':' �!l-!i ^ . rh�1 ' (? i[E I h?�a" lmww 1 « 78.4a 1 Q9}.7 '�Tlir�? : i Iir�'�Y� � 80.92 ,1M1=: t S lit• _ G,O1 Wells Avcri �. 84.38 .- —jai _ seliior Cniter84.01 "85.96 . ' • ^ Imo., f•,y,.. 4 = •, i.::.- r , ` - •..� • c ` i r ' i— MW 94.46�`' t 1f sJJ� .r �FtM R 462 102.36 Boeing-.1.' tt ,t a . '� , •I.Ln,im f1,u �,.'� La 10 111.56 yEast Perimeter Rd _ ,� _ -tom'^'' '1Scndh Oocing Bridge C' }—'- ✓r. RM 677 4 t 1 r t- -.may �.�- - ��'• J 'A:.-.r .. _-`,« �. � �- �� ����` 'v. • r ._ F Reuflon Muni„pal AT _ � � G+►a+ F :~ 1wFt q+ t^r 1t Nord, Boeing Bridge " _ -�._ _ .. J- . �i >rr" - r--- ... _ .-� ;��' �:•�1! �.��1� •'i � Cedar• River L the bridge where flow lines are approximately parallel and flow is not affected by the structure (USACE, 1998a). In the lower Cedar River, the channel is relatively uniform and the bridges typically do not encroach significantly on the channel. Therefore, the number of cross -sections at each bridge can most likely be reduced to an upstream and downstream section. This should be confirmed by a review of the cross -sections surrounding each bridge site. Additional cross - sections will need to be added at bridge locations where this is not the case. 2.3 Survev Points There are specific points in the channel that need to be surveyed to define the river geometry. These points include the thalwea, top of bank, top of levee (if different from top of bank), and any significant breaks in grade or vegetation. Points within the main channel should be surveyed at a maximum spacing of 20 feet (see SECTION 3). The cross-section end -points should extend beyond the area inundated during high flow. Every survey should be tied into a common elevation datum. The National Geodetic Vertical Datum (NGVD) has been used historically for Cedar River geometry surveys (NHC, 1992). A list of reference marks along the channel reach for this datum is shown in Table 1. In addition, a General description of the roughness characteristics (i.e. vegetation type) on the overbanks at the time of each survey should be developed. Additional details on cross-section surveying techniques are provided in FEMA, 1995. Table 1. NGVD reference marks on the Cedar River (NHC, 1992) Elevation in Feet Reference Marks (NGVD) Description and Location RM 681 21.72 A chiseled square on top of southwest corner 1-foot-high concrete curb on the northwest corner of the Boeing benchmark. RM 677 25.71 A chiseled square in the northwest corner of the northwest wingwall on the Boeing access bridge over Cedar River, 0.32 miles north of the Logan Avenue South bridge over the Cedar River. City of Renton benchmark. RM R 462 37.01 A standard disk set in top of the northwesterly corner of Logan Avenue South bridge guardrail over Cedar River. NGS benchmark. RM K 384 40.98 A standard disk set in the northeast corner of Bronson Way North bridge over Cedar River. NGS benchmark. RM NHC 1 34.18 Benchmark north of the Cedar River at the center (low point) of a storm drain grate located in a lawned area between the east side of Carco Theatre and the southwest corner of the Stoneway Concrete Company proper[y. -4- 2.4 Survev Timin Cross -sections must be surveyed frequently enough to adequately represent the effects of sedimentation and scour on the channel over time. The local sponsor can reassess the frequency of the required channel surveys and formally request to the USACE revisions of the re -survey schedule. Surveys should be conduced during lower flows in late spring/early summer or as conditions warrant. Typically, the lower flows along the Cedar River occur from May through November. The recommended initial survey times include: ✓ Immediately after dredging of the river ✓ After the first high flow period that follows dredging ✓ Frequently enough to define channel geometry changes during "average" years ✓ After the occurrence of extreme flow events The survey conducted immediately after the river is dredged defines the initial channel geometry. The survey after the first winter high flow period following dredging is required to define a change in area at each cross-section. As discussed in SECTION 3, the change in cross-section area is used to forecast expected future cross-section shape. Cross -sections also need to be surveyed frequently enough to define changes in channel geometry over a series of succeeding "average" years. An "average" year can be defined as when the sediment load, sedimentation rate, and scour potential are relatively the same from year to year. Initially, these surveys should be done every year to establish typical changes in bed elevations. Abbreviated surveys can be used to verify any established trends and revise the frequency of future surveying if necessary (see "2.5 Abbreviated Surveys"). An example of the relation between survey timing and determining when to dredge is discussed in SECTION 3. Extreme flood events will occur that vary considerably from "average" conditions. Initially, surveying should be done anytime a 2-year (50% probability of exceedance), greater flood event occurs, or if the flow volumes for individual months, the flood season, or water year are significantly larger than normal. The average runoff volume for the Cedar River at Renton for the period 1962 through 1989 (King County, 1993) is shown in Table 2. A high volume runoff year could potentially carry a large sediment load. In either case, a channel survey should be made during the following low flow period to assess changes to channel geometry. -5- Table 2. Mean Monthly Flow and Volume at the USGS Renton Gage (King County, 1993) Month Flow cfs Volume acre ft Jan 1,118 68,700 Feb 1,002 55,600 Mar 846 52,000 Apr 739 44,000 May 694 42,700 Jun 609 36,200 Jul 266 16,400 Aug 183 11,300 Sep 236 14,000 Oct 335 20,600 Nov 610 36,300 Dec 1,020 62,700 Mean Annual 638 38,300 The 2-year event was selected as an initial threshold for conducting flood event specific surveys because it is typically defined as the smallest event that can cause significant changes to channel morphology. This threshold may be adjusted if experience indicates that only less frequent flood events cause significant channel change. When assessing the requirement for a flood event specific survey, is should be noted that the impact of a particular event may vary depending on its timing relative to the most recent dredging. In general, extreme events cannot be predicted. A situation may arise where an extreme event changes the channel geometry such that dredging is required for the high flow period the following year. Surveying should therefore be conducted as soon as possible after an extreme event, commensurate with personnel safety and data accuracy, to maximize the amount of time available to obtain required permits. 2.5 Abbreviated Survevs Abbreviated surveys can be conducted to confirm estimates and assumptions made from prior cross -sectional area surveys or to determine if more detailed surveys are warranted. For example, an abbreviated survey could be conducted following an extreme flood event to verify the need for a detailed survey or after an "average" flow season to confirm the expected change in channel bed elevations. Abbreviated surveys would include only select channel cross -sections and a limited number of cross-section points. The specific number of cross -sections and cross-section points included in an abbreviated survey must adequately indicate changes in bed elevation through the project reach. SECTION 3. Timing of Maintenance Dredging 3.1 Purpose As part of the Section 205 flood control project, the Cedar River will be periodically dredged to reestablish and maintain design conveyance through the City of Renton and decrease the potential for flooding (USACE, 1997). The following methodology is recommended to determine when dredging should occur to maintain the authorized level of flood protection (100-year). The methodology requires that the level of flood protection be assessed based on the results of a numerical hydraulic model of the Cedar River. The hydraulic model, HEC-RAS (USACE, 1998b), will be developed based on surveyed channel geometry and predicted changes in bed elevation. The model will be periodically updated with the re -surveyed cross sections and run by the local sponsor to predict the expected level of flood protection in the future after the re -survey. An estimate of future flood protection level one-year subsequent to each periodic survey is required to facilitate the dredging permit process. 3.2 HEC-RAS Model Development The HEC-RAS model will be used to evaluate the available or expected level of flood protection (100-year return period flood) in the project reach. Analyses will be made using the channel geometry defined from the most recent cross-section survey data, in addition to the channel geometry revised with the most recent realistic estimation of change in bed elevation. The initial HEC-RAS model roughness coefficients should be calibrated to available high water mark data and periodically reviewed and updated. The initial data should be obtained at the cross sections in the model during the first high water period following the surveys. Analysis should be conducted immediately after the surveys in order to provide the greatest amount of lead-time for any required dredging. Analyses from the HEC-RAS model will kept on file by the local sponsor. A summary report will be provided to the Seattle District Army Corps of Engineers each time a new survey is conducted and will include: ✓ Graphs of the most recent surveyed channel geometry ✓ Estimates of change in bed elevation at each cross-section ✓ Methods for developing and calibrating the HEC-RAS model ✓ The rating curve to be used for determining when to raise the South Boeing Bridge ✓ Recommendations for the need to dredge -7- 3.3 Estimating Bed Elevation Changes at a Cross -Section Rates of change in bed elevation are required to forecast future cross-section geometry. A method for estimating these rates using observed changes in cross-section area is discussed by way of an example. Figure 2 shows cross -sections at USCOE river station 16.12 for October 1998, after the river had been dredged during that summer, and in January 1999, three months later. Calculating the change in cross-section area between subsequent surveys can approximate the rate of bed elevation change at this cross-section. This rate of change can then be extrapolated to the desired period in time to approximate the revised channel geometry. This change in cross - sectional area can be calculated easily by planimeter or in conjunction with a CAD software package. Figure 2. Example of change in cross -sectional geometry 00 25 20 c ° t5 m 0 W 10 5 Cedar River Cross -Section at USCOE River Station 16.12 I I- +- Oct'98 (RS 16.12) i I tJan'99 (Sta. 15-81) FIII i i i \ i I t♦ 0 -50 0 s0 100 Is0 200 Distance (tt) -8- Because the two cross -sections did not align exactly, best judgement was used to 1) align bank stations and 2) determine the actual cross -sectional area that is undergoing change. For example, in Figure 2, it may be appropriate to consider only the change in area between stations at 28 and 161 feet, as the difference in bank elevations may not be due to actual changes in the channel but rather to how the survey was conducted. It is noted that the January 1999 survey was performed during a high flow period and it was probably difficult to survey. Because the bank stations of the different surveys do not line up exactly the cross -sections in the figure above were aligned by eye. The difference in the banks station locations may be due to slightly different alignments across the river. Establishing permanent reference points (see SECTION 2) at each cross-section would help to alleviate this issue. In addition, note that inclusion of more cross-section points along the bottom of the channel would give more resolution to the channel shape and would provide a more accurate estimate of change in the cross-section. Erosion and deposition rates are expected to decrease as the channel stabilizes. Therefore. the calculated change in channel area will probably be high when initially extrapolated into the future. Best judgement may be needed if an unrealistic change in area is computed. A check can be made against the rates estimated over two approximate six year periods, 1985 to 1991, and 1991 to 1997 (NHC, 1998). Once the estimate of cross -sectional area change is made, the change in area is divided by the width of the affected channel and then divided by the time between the two surveys. At Where: da„g Average change in cross-section depth over time A t, A-) Area below surveyed channel points for the I" and 2"d surveys, respectively, to an arbitrary depth w Affected channel width At Period of time between the I" and 2"d surveys -9- This results in an estimate of average change in depth over time. This rate is then multiplied by the period from the most recent survey to the forecast period. This depth should then be added (for aggradation) or subtracted (for degradation) at each cross-section point (Figure 3). Figure 3. Estimate of forecasted cross-section geometry Cedar River Forecasted Cross -Section Geometry at USCOE River Station 16.12 30 25 20 c 15 A 7 d W 10 5 0 -50 0 50 100 150 200 Distance (tt) Best judgement should be used when forecasting cross-section shape in this manner. Adding an average depth to each survey point in the main channel may not be appropriate depending on the surveyed cross-section geometry. Accordingly, each cross-section should be assessed individually. For example, if a point within the main channel is estimated to be higher than either top of bank, consideration should be given to limiting the modified elevation to the top of bank height. 3.4 TiminjZ of DredlZing The HEC-RAS hydraulic model can be used to assess the current and future flooding potential once the estimates of aggradation or degradation at each cross-section have been developed. This is accomplished by executing a series of successive simulations with the model. Figure 4 and the following text gives an example of the specific analysis steps. "Typical high flow" periods are the months with the greatest observed mean flow. It is assumed that this is the time of the most significant flooding, sedimentation, and scour. The months and times listed are approximate. Assume that a survey was conducted at both Time A (e.g., after dredging) and at Time B. Figure 4. Example of determining when to dredge Typk Hipp Flow ,... Period 1 .- Typical High Flow -: Period 2. .._. Typical High Fbw -<. Period 3 Typraf FGgh Flaw -- Period 4 Mon-: A S O N D J F M A M J J A S O N O J F M A M J J A S O N DI J F M A M J J A S I O N D J F M A Tme: A 8 Step 1. Assess current conditions. Run HEC-RAS using the most recent survey data (from Time B) and a 100-Year flow event. Is the required level of protection provided? ✓ If no, initiate permitting process immediately for dredging prior to the following high flow period (High Flow Period 2). ✓ If yes, proceed to Step 2. Step 2. Assess future conditions. Estimate the aggradation or degradation rate at each cross-section using the most recent survey data (surveys at Time A and B) and extrapolate channel conditions to a time after the next high flow period when the high flows typically recede (e.g., end of April). Evaluate available flood protection using HEC-RAS and the forecasted channel geometry. Is the level of protection adequate for the forecasted period (the end of High Flow Period 2)? ✓ If no, initiate the permit process immediately in order to dredge prior to that high flow period. ✓ If yes, proceed to Step 3. Step 3. Estimate aggradation and degradation for the next high flow period (High Flow Period 3), and each high flow period thereafter, until the required 100-year level of protection is no longer met. Dredging should then be planned to occur in the low flow period prior to when the level of protection is no longer provided. Using this same example, Figure 5 shows the timing relation between dredging, surveying, and starting the permit process. Assume that these are a series of "average" years and that the channel was dredged and a survey conducted at Time A. Another survey was made at Time B. An estimate of the forecasted change in area at each cross-section was then made based on the rate of observed changes between Time A and Time B. Based on an HEC-RAS analysis, the required level of protection is expected to be available up to, but not including, High Flow Period 4. In order to provide a year lead-time, the permit process for dredging would need to start the year before (e.g., at Time C for dredging to occur at Time E). To confirm the need for dredging, and to assess trends during "average" years, a new survey is conducted during the low flow period prior to High Flow Period 4 (at Time D). The hydraulic analysis is then re-evaluated using the most recent survey and aggradation and degradation rates based on the period from Time B to Time D. Figure 5. Example of surveying and dredging cycle Typra! Ffgh Fbw Period t' .,.. I Typ7W Hqh Fbw Period 2 _ I TypiW High Fbw .. Period 3 I ical TypHgh Fbw Period 4 Monet: A S O N D J F M A M J J A S O N D J A I S O N D 1 J F M A M J J A S O N D J f M A Tme: A B 111.1A1.111JI c 1 D E If it is shown that based on this new analysis that the level of protection is provided for High Flow Period 4, then the planned dredging can be reevaluated. The cycle then begins anew with an estimation of the next high flow period when the level of protection is not provided. If the new survey shows that the level of protection is not provided and that dredging is still required, then the permit process was started the previous year and dredging can therefore occur. In a series of prolonged "average" years, the frequency of surveys may be reduced if, from the data observed over time, it can be concluded that the rates of change at each cross-section are fully understood and provide an adequate estimate of change in cross -sectional area. The example assumes that a series of "average" years occurs in succession. If an extreme event had occurred, additional surveying would need to be conducted. For example, if a 50-year event occurred in High Flow Period 3, the survey conducted at Time D would ensure that the required level of flood protection is provided for High Flow Period 4. The analysis process would then start again using a -gradation and degradation rates between surveys at Time B and Time D. -12- SECTION 4. Raising of the South Boeing Bridge 4.1 General As a result of the Cedar River Flood Control project, and the construction of floodwalls and levees, the South Boeing Bridge impedes flow during high discharges causing a backwater effect upstream. To alleviate this effect, the bridge has been retrofitted so that it can be raised during times of flooding. Boeing personnel need approximately three hours, after being notified, to complete their internal process for raising the bridge. It is desired to minimize the duration that the bridge will be in the raised position. 4.2 Action Flow Level The South Boeing Bridge must be raised prior to flow impinging upon it. Using the HEC-RAS model, the forecast channel geometry for the relevant high flow period (SECTION 3) and a range of discharges, an updated rating curve will be developed for the South Boeing Bridge (Figure 6). The river discharge that will impinge on the low chord of the bridge can thus be determined. Figure 6. Example of a rating curve at the South Boeing Bridge - 13 - 4.3 Flood Warning Svstem During periods of potential flooding, King County operates its Flood Warning Center 24 hours a day (King County, 1999). The Center issues warnings in four -phases based on flows at the Landsburg USGS gage (station 12117500). The Landsburg gage is located downstream of both the regulated Chester Morse Lake and Cedar Lake at approximately River Mile 32.0 (USGS, 1994). A USGS gage is also located within the City of Renton (station 12119000), 125 feet downstream from the bridge on Bronson Way North, at approximately River Mile 1.6. The King County flood warnings range from Phase 1, an internal County alert, to Phase 4, where residential areas may be experiencing dangerous high flows and flooding (Table 3) (King County, 1999). The warning phases are issued locally to police and fire departments, schools, other agencies, news media, and volunteer telephone trees. Table 3. Cedar River flow at each warning phase King County haJC Flood Phase Flow at Landsburg gage (cfs) Descrlptil�/ii 1 1,000 Internal Alert 2 2,800 Minor Flooding 3 3,500 Moderate Flooding 4 4,200 Extreme Flooding 4.4 Monitoring Flood Flows Flood flows can be monitored at Landsburg to estimate the expected flow and rate of change in discharge at the South Boeing Bridge and provide the lead-time required for raising the bridge. The travel time between the Landsburg (upstream) and Renton (downstream) has been estimated through simulation to be about 5 hours (King County, 1993). Flows above 5,000 cfs typically show a good correlation between Landsburg and Renton and little attenuation (approximately 450 cfs) is seen in the magnitude of the peaks. There have been occurrences however, where the travel time of the flood peak between Landsburg and Renton is less than three hours or local inflow between the two gages is greater than 1,000 cfs (Harvey, 1999). Under these circumstances, the Landsburg gage may not provide the required three-hour lead-time nor a reasonable indicator of discharge at the bridge. -14- Observations of stage and discharge at the Renton gage should be used to monitor differences in flow between the Landsburg and Renton gages. However, discharge estimates at the Renton gage should be used cautiously as prior dredging could affect the stage -discharge relationship and therefore the accuracy of reported flows. If significant differences are observed between Landsburg discharge and expected flows at the Renton gage, City personnel should conduct visual monitoring of stage at the South Boeing Bridge. Real-time data is available for both gages online at <http://wa.water.usgs.gov/reattime /rt_latest_data.html> or <http://www.nws.usace.army.milfhh/basins/rivers.htm> as well as hourly updated recorded information at the King County Flood Warning Center via the telephone at (206) 296-8200 or (800) 945-9263. It is recognized that unusual hydrologic conditions may occur or advance notice of potential flood conditions may not be received. If Boeing personnel note that flow is close to impinging on the South Boeing Bridge (within 6 to 9 inches of the low flange elevation on the bridge) and they have not received notification to raise the bridge they should contact the City of Renton for direction. An updated contact list of City of Renton and Boeing personnel will be included in an Annual Report written by the project sponsor and provided to the Seattle District USACE. The bridge should be raised if contact with the City cannot be made. 4.5 Raising South Boeing Bridle Sequence The King County Flood Warning Center, in combination with flow monitoring during select times by the City of Renton, will be utilized to notify Boeing personnel when the South Boeing Bridge will need to be raised. The sequence of events is shown in Table 4 Table 4. Sequence of action items for raising the South Boeing Bridge King County Sequence Flood Phase Action 1 1 None 2 2 King County notifies Boeing and the City of Renton. Boeing begins preparation for raising the South Boeing Bridge. 3 3 and 4 City of Renton monitors flow at Landsburg and Renton and notifies Boeing personnel when the bridge should be raised. The updated contact list of Boeing personnel will be included in an Annual Report written by the project sponsor. -15- 0 e Table 4 (continued). Sequence of action items for raising the South Boeing Bridge Sequence King County Flood Phase Action 4 N/A Boeing raises the bridge South Boeing Bridge. Operation procedures for the lift machinery at the South Boeing Bridge are detailed in Hamilton Engineering, 1998. 5 N/A South Boeing Bridge is elevated and kept in the raised position until flood flows recede appropriately below the hydraulic capacity of the bridge as decided by the City of Renton. Boeing should test the raising mechanism and procedures for lifting the South Boeing Bridge at least twice a year. Tests should be conducted both after and immediately before the flood season. The test after the flood season is intended to allow sufficient lead-time for any repairs or modifications to procedures or bridge raising mechanisms before the following flood season. The City of Renton and USACE shall be advised significantly in advance of the tests and permitted to observe the testing process. -16- SECTION 5. References FEMA (Federal Emergency Management Agency), Flood Insurance Study Guidelines and Specifications for Study Contractors, Washington D.C., September 1995. Hamilton Engineering, Inc., Boeing Renton South Bridge Lift Machinery Operation and Maintenance Manual, Seattle, WA, December 1998. Harvey, Daniel R., Personal E-mail to Jim Lencioni, US Army Corps of Engineers, Seattle District, July 7, 1999. King County, Current and Future Conditions Report. Cedar River, Land and Water Resources Division, Seattle, WA, 1993. King County, King County Flood Warning System. <http://splash.metrokc.gov /wlr/flood/flood.htm>, Land and Water Resources Division, Seattle, WA, June 1999. NHC (Northwest Hydraulic Consultants), Lower Cedar River HEC-2 Model and Evaluation of Flood Relief Alternatives, Prepared for the City of Renton, WA, February 1992. NHC (Northwest Hydraulic Consultants), Cedar River Survey Data, Prepared for the City of D a. t zz� n rJ 1 nno Renton, r A, o'remb-cr 177u. USACE (US Army Corps of Engineers), Flood Damage Reduction Study, Cedar River Section 205, Renton, WA, Final Detailed Project Report and Environmental Impact Statement, Seattle District, WA, 1997. ---, HEC-RAS River Analysis System. Hydraulic Reference Manual. Version 2.2, Hydrologic Engineering Center, Davis, CA, 1998a. ---, HEC-RAS River AnalysisSystem. User's Manual. Version 2.2, Hydrologic Engineering Center, Davis, CA, 1998b. USGS (U.S. Geological Survey), Water Resources Data, Washington. Water Year 1994, Water - Data Report WA-94-1, Tacoma, WA, 1994. - 17 - HYDRAULIC CONSIDERATIONS OF PROPOSED CEDAR RIVER PARK TRAIL SYSTEM DRAFT COPY Approved ❑ Approved As Corrected ❑ Resubmit As Noted ❑ �, RFry\ fc[NED 0 MAR 24 1978 *-G DEQfj HYDRAULIC CONSIDERATIONS OF PROPOSED CEDAR RIVER PARK TRAIL SYSTEM Prepared For City of Renton Renton, Washington Prepared By Norman Associates, Inc. Renton, Washington FEBRUARY 1978 NORMAN ASSOCIATES, INC. CONSULTING ENGINEERS • EVERGREEN BUILDING, SUITE 509 • RENTON, WASH INGTON 98055 • PHONE: (206) 235-1544 March 22, 1978 Mr. Gary Kruger, Senior Planner Planning Department City of Renton Renton, Wa 98055 Dear Mr. Kruger: Enclosed is the draft copy of Norman Associates', Inc., hydraulic report on the Cedar River Trail System. Please re- view and return your comments to us. Copies were also given to Mr. Larry Gibbons and Mr. Carter Kerr for their review and comments. Please contact me if you have any questions. 0 <p q4;-� o rman cc: Mr. Larry Gib Mr. Carter Ke COASTAL • HYDRAULIC • ENVIRONMENTAL e CIVIL • SURVEYING TABLE OF CONTENTS HYDRAULIC CONSIDERATIONS OF PROPOSED CEDAR RIVER PARK TRAIL SYSTEM Page GENERAL I STUDY SCOPE 1 PROJECT DESIGN 1 COORDINATION 2 HYDROLOGY 2 HYDRAULICS 4 SEDIMENTATION 5 SUMMARY 7 TABLES TABLE 1 STREAM FLOWS 2 TABLE 2 LOCAL INFLOW BETWEEN DAM AND CITY OF RENTON 3 TABLE 3 NUMBER OF DAYS DISCHARGE IS EXCEEDED 4 F I GU RES FIGURE 1 VICINITY MAP FIGURE 2 CEDAR RIVER TRAIL SYSTEM PHASE 2 FIGURE 3 BRIDGE PHOTOGRAPHS FIGURE 4 TYPICAL SECTION CEDAR RIVER TRAIL SYSTEM FIGURE 5 SEDIMENT SAMPLE LOCATION PLATE 1 PLATE 2 PLATE 3 PLATE 4 PLATES 5 through 17 PLATES FLOOD PROFILES EXISTING CONDITIONS FLOOD PROFILES PROPOSED IMPROVEMENTS FLOOD VELOCITIES EXISTING CONDITIONS FLOOD VELOCITIES PROPOSED IMPROVEMENTS SEDIMENT GRADATION CURVES GENERAL The City of Renton is proposing a mile long park along the Cedar River from its mouth to the Bronson Street Bridge. The pro- posed park concept is to allow park users to be near the river, particularly during summer and fall periods when the park is expected to generate the most use. The park construction is to begin in 1978. The general location of the project is shown in the vicinity map Figure 1 and the concept plan prepared by Jongejan/ Gerrard Associates is shown in Figure 2. cTIIRV crnpG Norman Associates, Inc., was requested by the City to deter- mine effect of the proposed park on stream flows and on sedimenta- tion transport. Criteria for the hydraulic study was to not in- crease the 100 year flood hazard and to have stream bank walkways that would be within one or two feet in elevation to the normal summer flows. PROJECT DESIGN The project area extends from Logan Street Bridge at river mile 1.09 to the Bronson Way Bridge at river mile 1.47. Just above the Logan Street Bridge on the right bank, the bank would be sloped back as shown in Figure 2; also walkways are cut into the stream bank as shown in Figures 2 and 4. The proposed design results in a slight lowering of water surface and river velocities for a dis- charge of 10500 cfs (100 year flood) over that for existing condi- tions. Walkways will pass under the bridges between the riverward pier and the abutment to avoid further constricting the flows, see Figure 3. COO RD1NATION Several meetings were held between Norman Associates, Inc., and the design consultant Jongejan/Gerrard Associates. During these meetings the design concepts were modified to minimize the impact of the project on the river from the hydraulic standpoint. Meetings were held on January 6, 1978, between the City of Renton and Norman Associates, Inc., to develop project criteria that was sensitive to the river system within the study reach. Meetings were held with King County Hydraulics Division representative, Larry Gibbons; the City of Renton; Jongejan/Gerrard Associates; and Norman Associates, Inc., to discuss project scope and hydraulic consideration. A meeting was also held January 22, 1978, between the City of Seattle; City of Renton; and Norman Associates, Inc., to discuss the City of Seattle's regulation of the water supply dam located upstream of the river trail project. HYDROLOGY The Corps of Engineers conducted a 1974 flood plain study of the Cedar River. Tabulated below are stream flows for various stream flow recurrence intervals from the Corps of Engineers' study. TABLE l STREA1 FLOWS Recurrence Interval Discharge (Years) (Cubic Feet Per Second) 4 4100 10 630-0 50 9400 100 10500 The 4100 cfs flow is the flow that Larry Gibbons of King County Hydraulics indicated would probably flow through the pro- ject area during proposed flood control releases from the up- stream City Light Dam. This includes regulated maximum discharge 2 of 2500 cfs and an assumed local inflow of 1600 cfs. According to representatives of the Seattle District Corps of Engineers, future regulation of the Cedar River has been set at a maximum controlled flow of 2500 cfs at the Seattle City Light Dam. This discharge would not be exceeded unless the dam filled. The above regulation was worked out jointly between the City of Seattle; Corps of Engineers; King County; Washington State Fisheries; and other agencies. Local inflow would enter the Cedar below the dam and would increase the river discharges above the regulated 2500 cfs. The frequency of occurrence of local inflow for several flows are tabu- lated below. TABLE 2� LOCAL INFLOW BETWEEN DAM AND CITY OF RENTON Recurrence Interval Discharge (Years) (Cubic Feet Per Second) 3.3 2500 5 3100 50 5900 The number of days that flows of 1200 and 4100 cubic feet are exceeded are shown in Table 3 for the water years 1971 to 1976. These data are illustrative only and it should be kept in mind that the stream was regulated and/or water was diverted for use by the City of Seattle. Also the City of Seattle proposes to regulate discharges in the future. Reference U. S. Army Corps of Engineers 3 TABLE 3 NUMBER OF DAYS DISCHARGE IS EXCEEDED Discharge Year (cfs) Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sept 71 1200 7 19 26 11 4 2 3 41oo 72 1200 2 19 14 24 29 16 8 6 4100 1 5 73 1200 10 9 4100 74 1200 1 19 19 23 11 9 17 41oo 1 75 1200 6 26 23 11 6 4100 76 1200 2 5 29 30 18 1 41oo 7 The proposed walkway section is about four to five feet above the bottom of the river. The planter lying between the vertical wall and the walkway is 2.5 feet above the walkway. Water would generally just inundate the walkway and planter for river dis- charges of 1200 and 4100 cubic feet per second respectively. HYDRAULICS The summer flow depth was selected to be approximately two feet with a free board of two more feet for the walk resulting in 4 a water surface that would be four feet deep when the walkway is just inundated. This water depth for proposed project conditions results from a discharge of 2500 cfs. Backwater studies were run for various discharges for both the existing and proposed condi- tions. tdater surface profiles are shown for various discharges in Plates 1 and 2 for the existing and proposed condition respec- tively. Velocities are shown for various discharges on Plates 3 and 4 for the existing and proposed conditions respectively. Comparison of the water surface profile and stream velocities as shown in Plates 1 through 4 indicate that no significant changes in the water surface profile and velocities will occur as a result of the proposed work. SEDIMENTATION Historically, sand and gravel were mined from the river at the-Graystori plant upstream of the proposed project. Several years ago the mining was discontinued. After this mining was stopped, shoaling problems developed in the lower reaches of the river. The City of Renton removed a reported 20,000 cubic yards of sand and gravel from the river during 1977 between the Boeing Access Bridge and Logan Avenue Bridge. Approximately 1 foot of material shoaled in this reach in the period between July 1974 and the summer of 1977 when the City dredged up to four feet in depth. The reach downstream of the area dredged in 1977 (river mile 0.0 to 1.09) has shoaled between 1.5 and 3.5 feet since July 1974. 5 The City proposes to remove 70,000 cubic yards of material from river miles 0.0 to 1.09 during 1978. Comparisons of the Corps of Engineers 1974 river sections and the City of Renton cross sections indicate that in the study reach between river mile 1.09 and river mile 1.47 that up to 1.2 feet of shoaling has taken place. The proposed park construction will reduce shoaling some- what during low flows; however, the majority_of the shoaling takes place during high river discharges which will not significantly change from the present, resulting in appreciably the same shoal- ing after construction as presently exists. A total of thirteen river bottom samples were taken from the river bottom during February at various locations in the project area. Gradation curves for these samples are shown in Plates 5 to 17. The rate of shoaling in the river is much heavier downstream of the project than in the project area and as a result has been the area that has been maintained by the City; however, the study reach from river mile 1.10 to river mile 1.47 is presently expensing shoaling which is expected to continue. Shoaling in the study reach could be re- duced if desired by providing a sedimentation basin just upstream of the project. Such a sedimentation basin could be designed to minimize maintenance of the project area and the reach downstream of the project. The disadvantage of a upstream sedimentation basin is that a larger volume of sediments may have to be removed from the sedimentation basin than would be required from dredging the downstream portion of the river. The advantage is that the area where the maintenance activities take place would be controlled. Instead of disrupting the lower 1.5 miles of the stream bed the activity could be restricted to say a 300 foot reach. r SUMMARY The proposed project will not significantly effect stream velocities and water surface elevations. Sedimentation of the project area and the lower reaches of the Cedar River v;ould continue as it has in the past. The removal of sediments can continue from where the actual shoaling takes place or be from a upstream sedimentation basin. The location would be a matter of ingress/egress, economics and ecological con- siderations. Design criteria for the project stresses: (1) Avoiding disruptions of stream flows. (2) Safety of park use. (3) Not increasing flood elevations or velocities. All of these criteria have been met in the proposed design. It should be noted that if the portion of the river along the park is allowed to continue shoaling the water surface may rise resulting in fewer usable days for the lower walkway. 7 O 1 ♦ , Y �, D �� NI \ • „ y`= _ ` �, .� .' o.. /�Y� i / ate• Tzi El I Tt 1 •�, i o, v` "4( �� ) Qi Y I f�• -•ems-.-�t� � �� s �y � I-`'�,�(�, � � �� ii' ( ,U� ��,, •r I I ol 00 go 17 00 Ll 'I L -_ 1 . � l it ■ \• `-� ��- tom.. •1' / ;• ' ••�' .' -. • • _ #i• a •' s 1(' Co .-v - � • :. ,"�" • �� ? �I V I C I N I T Y MAP I _ t ,''• •�+ �r Qi'' �� �d CEDAR RIVER, RENTON � o, ti _ • ••• � • ICI J� nJ- - s• ire r •. :� �? 1 /\ �� ; F I GURE 1 �•' �• '.• '1 I >_'. - ice- .J II CEOAR RIVER r TRAIL SVSTI PNABE 1 'JIB CEOAR TERRACE - ELOERLY HOUSING BUFFER PLAT INO csaosswnLx I WE \ 3 I z 0 a o I a W LIBERTY AiKTV _ Ll -- �- Ti�atE sT • o STAIRS ►.�ea'a�'� I e IMPROVED o • • '�_ IAVDERPASS AIRS - SITTING AREA may. UNDERPASS v 3 9W K PICNIC _ � WATERFRONT SHELTER PLAZA 1I •ate-,o�� � • }. • _ — � ,� e BUFFER \\� r •\ PLANTINC3 JONES T ' /�•: � 1 � r ,.,- , � _.. a .� �. �o .,,., . _ ice:"` irs��.: • .. _ �:: .,�... •�� � - a .1�-71 v.7Tl..C� a.- ., .�'- .. it �: L.i ?r♦ •, it ``rv/ FIGUI Few 2.d 2.0' 1 MINIMUM -q r PP POSED, WALKWAY ©l1NK PROTECTION WATER SURFACF 120 CFS � NORMAL SUMMER FLOW TYPICAL SECTION CEDAR RIVER TRAIL SYSTEM SCALE: H I" = 20' V Iif = 5I old / 1 EXISTING GROUND SURFACE -„ c� c A m LOCATION OF SEDIMENT SAMPLES N I Q 3 0 2: 5 4 6 8 13 4 7 l 10 3 II 12 LEGEND SN-WLE LOCATION 1' � trFR� P-M-! D I (tE CT 10H NORMAN ASSOCIATES EVERGREEN BUILDING RENTON, WASHINGTON MARCH 1978 SCALE 1 = 800 "N"Em s mwmww z •i 01 Z % .% ••■•goose•9/ese■■=/• ••e••••egs•■•s■•■ /s ege••e•g•e�e■•e■gee• loommosons�■■a■omom om■oenoNSisemeNNU% •■■sge■segso•••■ e /0MM% AeL lol ISV ter. t 9F'N .400 •• at, F- 80 w 70 m 60 z 50 LL Z 40 w � 30 W cl- • 5wA/ U.S. STANDARD SIEVE SIZE Sin. 1.5in 3/4in. 3/Bin.�4 10 20 40 60 100 200 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS HYDROMETER COBBLES GRAVEL ISAND SILT CLAY COARSE I FINE COARS MEDIUM I FINE PROJECT WORK ORDER SURFACE Boring Sample 6S - / Depth Dust Ratio % Passing 200 CEDAR RIVER RIVER MILE 1.13 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN a ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 5 •• a•, 1_ CD 80 w 70 m o' 60 w z 50 w z 40 w a: 30 w a W m • mm • U.S. STANDARD SIEVE SIZE 3 in. 1.5in 3/4in. 3/8 in. )"4 10 20 40 60 100 200 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS HYDROVETER C.Oi COBBLES GRAVEL SAND SILT CLAY I COARSE I FINE COARSE MED►UM FINE PROJECT r�oe_47If1 Boring Sample 61IF-7, DeptliSURFACE Dust Ratio WORK ORDER GRAIN SIZE DISTRIBUTION % Passing 200 CEDAR RIVER RIVER MILE 1.16 RIT.TENHOUSE-ZEMAN a ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 6 ROXG] T 80 w 70 m 60 w — 50 w z 40 w 30 w a MR Kai U.S. STANDARD SIEVE SIZE Sin. 1.5in. 3/41n, 3/Bin. 4 10 20 40 60 100 200 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS HYDNOME TER 0.01 [SX6191 COBBLES GRAVEL SAND SILT r CLAY I COARSE FINE COARS MEDIUM FINE PROJECT WORK ORDER Boring _ Sample CR- 3 DepthSURFACE gust Ratio - CEDAR Passing 200 CEDAR RIVER RIVER MILE 1.16 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN a ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 7 F- 80 w 3 70 r m 60 z 50 40 w a 30 w CL fcf wed Ammmum s • U.S. STANDARD SIEVE SIZE 3in. 1.5in.3/4in.3/bin.-7�4 1 1 1 1 1. 10 20 I I 40 I 60 100 I I 200I I 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS HYDROMETER 0.01 GRAVEL I i COBBLES COARSE FI NE COARS MEDIUM SAID FINE SILT C L A Y s •s PROJECT /��MJ�/ so�'-a'ls WORK ORDER Boring Sample Cam'- Depth SURFACE Dust Ratio % Passing 200 CEDAR RIVER RIVER MILE 1.22 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN a ASSOC,, INC. GEOTECHNICAL ENGINEERING PLATE 8 . • 1= z CD80 W 70 m 60 w z 50 �L 40 w x 3 0 w IL NSA • aroma U.S. STANDARD SIEVE SIZE Sin. 1.5in.3/4in.3/8in.%k4 1 1 1 1 1 10 20 1 1 40 1 60 100 1 1 200I 1 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS HYDROMETER COBBLES GRAVEL SAND SILT CLAY COARSE I FINE ICOARSE MEDIUM FINE PROJECT WORK ORDER Boring Sarnple Depth SURFACE Dust Rotio % Possing 200 CEDAR RIVER RIVER MILE 1.22 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN 8 ASSOC,, INC. GEOTECHNICAL ENGINEERING PLATE 9 T 1- 80 w 70 m oc 60 w 50 lL z 40 w 30 w a well m• sws� • • U.S. STANDARD SIEVE SIZE 3in. 1.5in.3/4in.3/8in.�4 10 20 40 60 i00 200I HYDROMETER1 1 1 i i _ I i I I I 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS e •. 0.001 COBBLE GRAVEL_ COARSE_ SAND SI:__T CLAY I FINE JCOARS MEDIUM I FINE PROJECT WORK ORDER As 9/-a Boring Sample 6/0-lo DepthSURFACE Dust Ratio % Passing 200 CEDAR RIVER RIVER MILE 1.26 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN 8 ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 10 ti• r 80 w 70 r m 60 w 50 w 40 w ct 3 0 w w M w•7 U.S. STANDARD SIEVE SIZE Sin. 1.5in.3/4in.3/8in.�4 10 20 40 60 100 200I 1 1 1 1 1 1 1 1 1 1 HYDRO11ETER 100 10 1.0 U.I GRAIN SIZE IN MILLIMETERS U.UI 0 001 COBBLES GRAVEL_j SAND SILT CLAY �COARSE I FINE COARS MEDIUM FINE PROJECT _L���d✓ sf---,/f-f WORK ORDER Boring _ Sample GAP- 7 Depth SURFACE Dust Ratio % Passing 200 C'CDAR RIVER RIVER MILE 1.28 GRAIN SIZE DISTRIBUTION RITTE NHOUSE -ZEMAN a ASSOC., INC. GE_OTECHNICAL ENGINEERING f Lf11 L. I I •• 90 0 80 w 70 m o✓ 60 w z 50 w z 40 w 30 w a. Elv rommmum offee, U.S. STANDARD SIEVE SIZE Sin. 1.5in. 3/4in. 3/8in.�4 10 20 40 60 100 200 HYDF;OMFTFR 1 1 1 1 i I I 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS [SSW COBBLES GRAVEL SAND SILT CLAY COARSE FINE lCOARSqMEDIUM I FINE PROJECT aw WORK ORDER_!!s - z Boring Sampled Depth SURFACE Dust Ratio %° Passing 200 CEDAR RIVER RIVER MILE 1.28 GRAIN SIZE DISTRIBUTION RI T TENHOUSE-ZEMAN a ASSOC., tNC. GEOTE.CHNICAL ENGINEERING PLATE 1 tiA 80 LU � 70 m rr 60 w Z 50 L. z 40 w � 30 w w WE mr•7 0 uI L 1000 U.S. STANDARD SIEVE SIZE Sin. 1.5in. 3/4in. 3/8in.-: `'4 10 20 40 60 100 200 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS HYDROMETER 0.01 COBBLES GRAVEL SAND SILT CLAY COARSE FINE _d COARS MEDIUM FINE PROJECT WORK ORDER Boring SampleC9 i3 Depth '�L►RFAGE Dust Ratio % Passing 200 CEDAR RIVER RIVER M LE 1.29 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN a ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 13 a•, F- 80 w 3: 70 m a 60 w Z 50 L. r 40 L w 30 w d WN U.S. STANDARD SIEVE SIZE min. 1.11n. z)i-iin. oltjln. rf'4 i v cv 'tv bU IUV CUU i I i i I i I i , I HYDROMETER 100 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS COBBLES GRAVEL SAND SILT CLAY COARSE FINE COARS MEDIUM I FINE PROJECT ZZ—c-nN /tssou zy 81 WORK ORDER-z-1-9/- z Boring SompleCR— 9 Depth SURFACE Dust Ratio % Possing 200 CEDAR RIVER RIVER MILE 1.32 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN a ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 14 U.S. STANDARD SIEVE SIZE • • �I�II■■■■IIIIII■11�11111■■■ � 111�■■�1111�■■�11111�■■� , IIIII.■■■Inl�■■ �■1111�■■■■I�11�■■■■1�11�■■■■1111�■■■■ IIIII■■■�il111■ � 1111�■■�illll■■ �1111�■■�1111 ■ � :.IIIII■■■■1111�■■��ll11��■■■1111�■■�■1�11�■■■■1111��0 ■ IIIII■■■■11111�■■�■11111�■■�IIICI�■■■IIIII■■■�1l111■■■� • 1111��■■■IIIII■■■ ■IIIII■■■■ill �■■■■111�■■■ 1111�■■■■ IIIII ■■�u1111■a■�11111�■■�IIIII�■■�1�111■■■�ln11/■■� .. IIII��■■■IIIII■■■ IIIII■■■� Irl�■■ t ■■Ir111�■■■1l111�■■� • � • 111■■■■IIIII■■■ 1111■■ �1111 �■■■ illy■■■■ 1�■■■� , �11�■■.■1111�■■.■�111�■■� IIII�■■■■�111�■■.■�1..■.■ IIIII■■�IIIII�■■ iilll�■■CIIIII�■■�11111■■■� 111■■■� IIIII■■■■1111�■■■1�11111■■■■11I11l■■■■1111l■■■■11N■■■■ • 1111■■■■111! �■■lei Ill■■■■IIII ■ 11111�■■ 111��■■� 1rIIN■■■1111��■■��r�111■■■�IIi11■■■ IIIII■■ 11�■■■■IIIII■■��11111�■■�11111■■■ IIIII■■■�IIII�■■■� • , t1111�■ ■11111�■■�\IIIII ■■�11111�■■■IIIII■■■�1111�■■■� Ilrl�..�■Irll1..■ ,�IIIC.■�1111�■■�11111�■■ IIN■ � IIIII■■■■ill1■■■ Il1, m■■m111I■■■■mill■■■1MINIM 11111■■■■Ili�e�■■■Illli �:�.�r1r11■■■■1111�■■■�illll■■■� IIIII■■■■IIIII■■■■IIIII■■■�::�111■■■■Irll�■■■�1111��■■■ ... .. . . . .. .... COBBLES SAND SILT CLAY COARGRAVEL SE I FINE JCOARS4 MEDIUM I FINE PROJECT - /s-e_%v,v 4. WORK ORDER -fs-91- -2- Boring Sample GR-/o Depth SURFACE Dust Ratio % Passing 200 CEDAR RIVER RIVER MILE 1.35 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN a ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 15 10 90 80 LIJ 70 m 60 W z 50 LL 40 w � 30 20 10 01 U.S. STANDARD SIEVE SIZE 3in. 1..5in. 3/4in. 3/8in.-4�,4 10 20 40 SO 100 200 1uvn�.�aAc Tco 1INN 1 LIN ism 0 11' ow -11.JU IUU 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS 0.01 0.001 COBBLES GRAVEL SAND COARSE FINE kDARSIE MEDIUM I FINE SILT CLAY PROJECT WORK ORDER 21-2/ .2. Boring Sample CR- Depth SURFACE Dust Ratio % Passing 200_ CEDAR RIVER RIVER MILE 1.39 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN a ASSOC., INC. GEOTECHNICAL ENGINEERING P L•AT E 16 100 90 80 w 3 70 m Of 60 w z 50 IL z 40 w 30 w a 20 10 0 1000 100 U.S. STANDARD SIEVE SIZE w -it-tin. 5/tsin. 'r`4 I v cv '+v nu Iuu ZUU I HYDROMETER I I I I 1 I I I I I 1 10 1.0 0.1 GRAIN SIZE IN MILLIMETERS 0.01 0.001 COBBLE S GRAVEL SAND SILT CLAY COARSE I FINE JCOARSd MEDIUM I FINE PROJECT 141--w►-A-1 WORK ORDER Boring Sample4n -/Z DepthsURFACE Dust Ratio % Passing 200 CEDAR RIVER RIVER MILE 1.44 GRAIN SIZE DISTRIBUTION RITTENHOUSE-ZEMAN 8 ASSOC., INC. GEOTECHNICAL ENGINEERING PLATE 17 Civil Projects Branch Gary Schimek Renton City Hall 1055 S Grady Way Renton, WA 98055 DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P. 0. BOX 3755 SEATTLE, WASHINGTON 98124-3755 RECEIVED OCT - 4 2002 CITY OF RENTON UTILITY SYSTEMS SEP 2 6 2002 SUBJECT: Draft O&M manual for Cedar River Flood Damage Reduction Project Gary, Please find four copies of the draft O&M manual for the Cedar River 205 project enclosed. The document is dated August 2002. I have someone looking for the electronic files for the dredge design and the Maplewood site design. We have found hard copies of the Maplewood design. If you have any questions, please call me at (206) 764-6978. Sincerely, g -4;w6vVc --,, Timothy M. Shaw, PE Project Manager CENWS-PM-CP / I DEPARTMENT OF THE ARMY SEATTLE DISTRICT, CORPS OF ENGINEERS I� y l` P.O. BOX 3755 . f SEATTLE. WASHINGTON 98124-3755 -� REPLY TO ATTENTION OF Emergency Management Branch September 4, 200 �cCEIV Ea SEP - 5 2002 CITY OF RENT SNO UTILITY S EVIS Mr. Gary Schimek 1055 South Grady Way Renton, Washington Dear Mr. Schimek: Thank you for the opportunity to inspect the Cedar River Flood Control Project on August 28, 2002. The site visit was very informative and enjoyable. The project appears to be in excellent condition and well maintained. Please find enclosed a copy of the generic form used for the Federal Annual inspection report and an excerpt from another Operations and Maintenance manual detailing the outline of a local inspection report. When completed, your O&M manual will have a similar outline for what should be included in your annual report. If you have any questions, please do not hesitate to contact me at (206) 764-3406. Sincerely, -Charles H. I , P.E. Completed Works Program Manager Emergency Management Branch Seattle District, Corps of Engineers Roa- llerc x tb� 0011i. I w;1/ fIC W%e'l yod lWt re✓, twc4 INSPECTION REPORT ON AUTHORIZED PROJECT 1. Readiness for Flood Emergency: a. Has an organization with legal responsibility been established and a superintendent appointed who is responsible for flood fighting operations? b. Is there a published flood fighting plan and is an appropriate supply of sandbags, tools, and other flood fighting equipment readily available for an emergency? C. Are key personnel trained in flood fighting techniques and use of equipment? 2. Maintenance Program: a. Has a superintendent been designated who is responsible for operation and maintenance of the project? b. Is there a published program for inspection and maintenance of the project and project features? C. Are inspections being made in accordance with the requirements of Title 33, Code of Federal Regulations, Part 208, "Flood Control Regulations"? d. Do local interests as required by existing regulations submit inspection reports? e. Is the Operation and Maintenance manual furnished by the Corps available to the superintendent, and do his current instructions to maintenance personnel reflect the guidance in the manual? 3. Maintenance of Floodwalls: a. Is there any evidence of seepage, saturated areas, or boils that might affect the stability of the structure? b. Are there any signs of undue settlement that may affect the stability or water tightness of the structure? PROJECT Date C. Are there any sand -caving conditions riverward of the floodwall, which might endanger the stability of the structure? d. Has the concrete suffered cracking, spalling, or deterioration to an extent that may affect the stability or water tightness of the structure? e. If applicable, have the local responsible interests taken any measures to correct the above conditions? f. Are trees or other growths that might jeopardize the stability or water tightness of the structure removed at regular intervals? g. Is debris or trash allowed to accumulate adjacent to the floodwall? Is care being exercised to insure that fires are not built adjacent to the floodwalls? 4. Maintenance of Levees: a. Is the levee being maintained to the design section'? b. Is there any evidence of seepage, saturated areas, or boils that might affect the stability of the levee? C. Have necessary repairs been made to cracks, erosion, or other damages to levee slopes? d. Are there any indications of wave -wash damage or scouring? e. Are there any indications of slides or sloughs developing? f. Is sod cover on levees being encouraged? g. Is sod cover mowed regularly? h. Is sod or other desirable cover fertilized and reseeded as necessary'? 2of8 PROJECT Date i. Does brush cover or other growths interfere with inspection? 5. Maintenance of Levee Crowns. Roadways, and Gates: a. Is the levee crown at design and is it shaped for proper drainage? b. Is undesirable growth permitted on the levee crown? C. Are there any obstructions to vehicular passage along the crown? d. Are access roads to and on the levee properly maintained? e. Are access ramps properly maintained? f. Is unauthorized vehicular traffic permitted on the levee? g. Are cattle guards and gates in good condition? h. Are keys to locked gates readily available to authorized personnel? 6. Maintenance of Revetted Areas: a. Have damaged or subsided areas been repaired? b. Is riprap material sound, e.g., not cracked or weathered? C. Is bedding and/or bank material beneath riprap exposed or disturbed? d. Are there at any areas where riprap or revetment works have been displaced, washed out, or removed? 3of8 t PROJECT Date e. Are the revetted areas being kept clear of undesirable growth? 7. Maintenance of Drainage Structures: a. Are headwalls being kept in a reasonable state of repair, e.g., no cracks, spalling, or deterioration that will affect the stability of the structure? b. Are flap gates, manually operated gates and valves in good repair and operating condition? C. Are pipes through levee in serviceable condition, e.g., metal sound, no rust holes, no settled sections, no evidence of piping or subsidence? d. Are toe drain systems and pressure relief wells in good working order? e. Are inlet and outlet channels clear of growth and debris? f. Has riprap around drainage structures been displaced'? g. Is there any erosion that might endanger the stability or water- tightness of the structure'? 8. Maintenance of PumpingP: a. Is all pumping equipment operable? b. Is pumping equipment being properly maintained? C. Is the regular inspection, testing and lubrication program being followed? d. Are adequate supplies of lubricants and fuel available for gasoline and diesel -powered equipment'? e. Is emergency lighting and communication equipment operable and being properly maintained? 4of8 PROJECT Date f. Is all switch gear, transformers, motor, valves, gates, etc., operable and being properly maintained? g. Is electrical wiring in a satisfactory condition? h. Are buildings being adequately maintained? i. Is the operating room and sump clean? j. Is corrosion mitigation equipment operable and being used? k. Are operating manuals readily available? 1. Are operating personnel properly trained to operate and maintain the equipment? In. Are operating logs being maintained and furnished the District Engineer? 9. Maintenance of Ponding Areas: a. Is the capacity of ponding areas being reduced by the accumulation of silts and other deposits? b. Are ponding areas being kept clear of undesirable growth? C. Are fills and/or structures that reduce the capacity of ponding areas permitted? d. Are inlet and outlet channels kept clear of debris and undesirable growth? 10. Maintenance of Channels and Floodways: a. Is the carrying capacity of the channel or floodway reduced by sand and silt deposits and by undesirable growth or debris? 5of8 • PROJECT Date b. Are tributary channels clear of debris and other materials that might jeopardize proper operation of the project under flood conditions? C. Are debris basins, check dams, and related structures properly maintained? d. Is the dumping of trash and debris allowed? e. Are there any unauthorized structures or encroachments obstructing the channel or floodway? f. Are wave wash, sloughing, etc. damaging banks? g. Have necessary repairs been made to eroded areas? 11. Maintenance of Closure Structures: a. Are all moving parts of gated closure structures in good working order? b. Are stop -log units readily accessible when required for closure? C. Do stop -log units fit and are brackets in good condition? d. Are stop -log units properly stored and maintained? e. Is sufficient material on hand for erection of sandbag closures? Is material readily accessible? f. Can closure be made promptly when necessary? g. Is there a program for trial erection of closure structures? Is this program being carried out? 6of8 PROJECT Date 12. Control of Encroachment and Trespass: a. Have unauthorized structures through, over or adjacent to the project been permitted? b. Is there any unauthorized excavation within the project rights -of -way? C. Have agricultural activities been permitted within the project rights -of -way? d. Is there any unauthorized burning of grass and weed? e. Is unauthorized vehicular traffic permitted on the levees? f. Are boundaries properly identified? 13. Control of Burrowing Animals: a. Is there an effective program for control of burrowing animals? b. Are animal burrows properly filled and compacted? 14. Control of Grazing: a. Are fences and cattle awards kept in repair'? b. Are measures being taken to prevent overgrazing? C. Is there any unauthorized grazing? d. Have Cattle trails, etc, been resodded? 7of8 PROJECT Date 15. Remarks: ?9? Inspector(s) 8of8 APPENDIX III Outline of Sau-annual Deport of Superintendent to District Engineer 1. General a. Date inspection is made. b. Names and official capacities of persons making inspection. 2. Levees. - �sults of insp---ction covered by the followin n„items : a. Condition of vegetal growth on levee and action taken to plant areas devoid of such growth. b. Indication of bank erosion. c. Caving on riverward side or landward side. d. Seepage or saturation areas or boils occurring after a flood, Particularly at junction of levees and walls. b. AccumLlatson of drift. f. Maintenance of established roadway on levee. g. Vehicular traffic on levee other than on established roadaw-ay. h. Encroachments by construction of culverts, pipe lines, etc. i. Results of,levels taken at established points on the levee and condition of crown for drainage. j. Repairs made or other actions taken resulting from inspection of the foregoing items. 3. Flood watts. _Results --.. of inspection covered by the following items: � a. Cutting or rotting at face of the timber at the bolt viashers . b. Splitting or breaking of the longitudinal planking or arty evidence of rot; also of timber spreaders at top of piles, especially at bolt holes. F j c. Evidence of piles being out of alinement. d. Bulging or heaving of the wall. e. Bending or distortion of the rods exposed at top of the structure. f. Rusting of bolts or washer rods. g. Evidence of settlement of dirt fill. h. Seepage, saturated areas, or sand boils. i. Possibility of tree roots under wall. j . Encroachments coon right-of-way. k. Accumulated trash and debris. 1. Evidence or fires being built near wall. m. Bank caving or sloughing. n. Condition of filter along landward face of wall. o. Repairs made or other action taken resulting from inspection of the foregoing items. 4. Drainage structures. - Results of inspection covered by the following items. a. Accumulation of trash, drift, or debris near inlet and outlet of channels serving the following: (1) 36-inch culvert at Tf;entp-first Street. (2) 48-inch s`ntch Creek pipe line. (3) 20-inch pumping plant pipe line. b. Condition of headwalls, riprap, and pipes of the following: (1) 36-inch culvert at TWenty-first Street. (2) 43-4-nch ".:etch Creel-, pipe line. (3) 20-inch pumping plant pipe line. 2 j c. Evidence of piles being out of alinement. d. Bulging or heaving of the wall. e. Bending or distortion of the rods exposed at top of the structure. f. Rusting of bolts or washer rods. g. Evidence of settlement of dirt fill. h. Seepage, saturated areas, or sand boils. i. Possibility of tree roots under wall. j . Encroachments coon right-of-way. k. Accumulated trash and debris. 1. Evidence or fires being built near wall. m. Bank caving or sloughing. n. Condition of filter along landward face of wall. o. Repairs made or other action taken resulting from inspection of the foregoing items. 4. Drainage structures. - Results of inspection covered by the following items. a. Accumulation of trash, drift, or debris near inlet and outlet of channels serving the following: (1) 36-inch culvert at Tf;entp-first Street. (2) 48-inch s`ntch Creek pipe line. (3) 20-inch pumping plant pipe line. b. Condition of headwalls, riprap, and pipes of the following: (1) 36-inch culvert at TWenty-first Street. (2) 43-4-nch ".:etch Creel-, pipe line. (3) 20-inch pumping plant pipe line. 2 C. Flap gates oiled or greased, examined., and trial operated once every 90 days for the following: i I (1) 36—inch culvert at Twenty --first Street. Date (2) 48—inch Mutch Creek pipe line. Date (3) 20—inch pumping plant pipe line. Date d. dutch Creek pipe line. (1) Ba.ckfill. Four feet minimum cover required. (2) Traffic over line at unauthorized crossings. (3) Annual inspection for settlement and distortion from true circular shape. Date e. Repairs made or other action taken resulting from inspection of i the foregoing items. 5. Closure structures. — Results of inspection covered by the following I items: a. Stop plank materials. (1) Condition of timbers as to freedom from decay, warping, or damage which ;night render timbers unusable. (2) Storage arrangements, such as provision for circulation of air around planks, and arrangements to facilitate removal of planks from storage structure. b. Storage structures. (1) Physical condition of structure as to door, windows., vents, and drains. (2) Availability of keys. 3 I c. Walls. (1) Condition of concrete. (2) Settlement. d. Trial closure. (I) Date of last closure. (2) Time for complete closure. (3) dean -hours required for coMplete closure. e• Availability of sandbags for closures at C .V.St. F. & P. R.R. tracks. Bags to be obtained fron f• Availability of labor and equirment to meet all contingencies. 9. Repairs made or other action taken resulting frcm =nsPection of the foregoing item • 6. ing Plant. -- Results of inspection covered by the fo a. I'tunp-house. llo„' g items: (1) Observation for settlement cracks, damge etc. (2) Condition of windows. (3) Condition of hardware. (4) Condition of vent. (5) Observation of pit to assure freedom from silt d (6) Observati� debris. on of pump bowl screens for clogging.(7) Assurance that trash rack and approach channel is (g) Inventor clear. Y of intake stop logs on hand. Number (9) Inventory of all necessary• hand tools, trash rack rakes, emergency lantern or flashlight on hand. List items on hand (10) Amount of lubricants on hand. (") Adequate Supply of "Station Logn f�. (12) Cleanliness of plant and equipment. 4 {'. b. Transformer bank and le equipment. 3 pole q pment. (1) General (2) Oil test (annually) dated tested c. Interior electric system. (1) General. (2) Lighting system Megger test (annually)Megohms Date (3) Power system Megger test (annually) Megohms Date (4) Main power disconnect switch. No. of spare fuse links (5) Lighting service disconnect switch and panel. No, of spare fuses (6) Motor control, 40 H.P. La) General (b) Disconnect switch. No. of spare fuse links (c) Magnetic starter (7) Yotor control, 20 H.P. (a) General (b) Disconnect switch. No. of spare fuse links f (c) Magnetic starter (8) Alternator panel. No. of spare fuses (9) Float switches (10) Motor., 40 H.P. (a) General (b) Megger test.Megohms Date (c) Oil level �I 5 i (1�-) Motor, 20 H.P. i (a) General i (-b) Megger test. Meg0h=. Date (c) Oil level. (12) Pump, 40 H.P. (a) General (b) oil level (a) Lubricator and connections ,(a) Trial operation. Submit "Station Log." Date(13) Pump, 20 H.P. (a) General (b) Oil level (C) Lubricator and connections (d) Trial operation. Submit ■Station Log. y Date (14) Gate valves (a) General (b) 14 inch pump - oiled or greased (c) 10-inch pump - oiled or greased (15) Check valves (a) 14-inch (b) 10-inch (16) Repairs made or other actions taken resulting from inspection of the foregoing items. Note: Regulations require: (1) Inspection of pumping plant at intervals not to exceed 30 days during flood season and 90 days during off_ flood seasons; (2) Trial operation at least once every 90 days; (3) Megger tests when wiring has been subjected to undue dampness and otherm.se at intervals not to exceed 1 year. 6 7. Conditions at flood period. - In the first semi. -annual report fo7lorring a flood period.. the Superintendent shall give a complete log of operation before, during,, and after the flood period relating Particularly to the follo-Wing items; a. Inspections made immediately prior to the flood, during the flood and after the flood. b. Record of personnel and equipment used in assembly of closure structures and time required for their erection. c. The continual patrolling of the flood control viorks during flood periods and a record of events during the flood. d. Record of water levels during the flood. (:] e. Record of the effectiveness of all parts of the flood control works during the flood. f. "Station Log'r- for operation of the pump -house during the flood I period. 7 0 3./..r Cedar River Flood Gates On April 13, 2000, the contractor conducted an operational test of the flood gates. The south Boeing bridge was closed to traffic from 10:00 a.m. to 1:00 p.m. The test required three people to operate the gates. Present at the during the test was Gary Schimek and myself. The operational test identified the sequence of operation, and revealed several areas where the gates need to be modified in order to be operated according to the design. In addition there were several areas identified where modifications would make operation of the gates more efficient. Flood Gate — Boeiniz side a. The trench for the rail does not have a drain, so the rail is covered by water. This causes erosion and makes operation of the gate more difficult. Drains need to be installed in the trench to prevent any water from collecting. b. The metal plates covering the rail trench were removed. These are long plates but can be removed by two men. The south gate was then pulled out manually. It is +� d that the J-bolts be aligned with the slots in the rail web. A permanent marker should be placed on the gate, and on the edge of the trench for the rail, to identify the proper location for the gate. c. The J-bolts were lowered, turned %4 turn and tightened down. This operation identified a problem with the location of the J-bolts. The J-bolts rub against the side of the rail. In order to lower the J-bolts, it was necessary for one person on the river side of the gate to use a pry bar to move the bottom of the gate as far landward as possible. Even then it was necessary to use a small sledge hammer to lower the J-bolts. Because of the tension of the J-bolts against the side of the rail, it was necessary to weld a nut to the top of the J-bolt in order to turn it'/4 turn and lock it in the slot on the rail web. This nut needs to be permanently marked to show the orientation of the J-bolt because where the J-bolt turned into the slot in the rail web is not visible. In order to tighten the lock nut, a special open-end angle wrench was required because the J-bolts are located inside the vertical channel iron. d. The north gate was pulled out manually. In order for the ends of the gates to overlap, it was necessary to use a cutting torch and remove a small area of angle iron at the bottom of the gate. Where the steel was removed, the area needs to be ground, primed and painted. e. The design calls for a rubber gasket along the bottom of the gate on the river side. It also calls for rubber gasket along the vertical end of the gate where the two gates overlap. These gaskets were glued on by the fabricator, but came loose the first time the gates were operated. An alternate method of sealing the gates needs to be designed. The bottom gasket rubs the outside edge of the rail. The tension that this creates makes it extremely difficult to move the gates along the rail. In addition, this tension would require the gasket to be attached to the gate using a different method than gluing. f. With the north gate in position, the J-bolts were lowered and tightened. The same difficulty in lowering the J-bolts was encountered as on the south gate (see paragraph c. above.) The struts were then attached to both gate leafs. The struts are different lengths, so each strut and its corresponding attachment point on the gate need to be permanently marked. Initially, the struts were first attached to the gate and then to the concrete bridge approach using the steel pins that have a square plate attached to the top. There is interference between the edge of the square plate and the end of the strut's square tube steel. A small sledge hammer was required to install the pins. The contractor then installed the pins, attached the bottom of the strut to the concrete bridge approach, and then connected the top of the strut to the gate. g. After the gates are in place, the steel blocking plate for the end of the pocket walls were bolted in place. In order for the blocking plates to be effective, they must align as closely as possible to the fluted gate wall. This requires the gate to be as plumb as possible. The only means of keeping the gate plumb is the end strut. On the north gate leaf, the end strut was too fabricated too short so the gate was not plumb. The adjacent strut was also too short. The contractor's mechanic responsible for insuring the gates are operational suggested removing a section of the struts, and installing a large (1'/a") turnbuckle. h. The blocking plates for the end of the pocket walls were removed, the struts removed, and the J-bolts loosened and raised. The same difficulty in raising the J-bolts was encountered as when lowering them. i. The gates were manually pushed back into the pocket walls, and the metal plates were placed over the rail trench. Flood Gate — Airport Side a. The metal plates covering the rail trench were removed by two men. The gates on the airport side are much longer than the gates on the Boeing side, so they cannot be moved manually. The contractor pulled each gate out of the pocket wall using a pickup and a nylon strap placed around the frame for the outrigger wheels. As on the gates on the Boeing side, permanent visual markers need to be place on both the gates and the edge of the rail trench, so the gates can be aligned with the slots cut in the rail web. The trench for the rail was not holding water because weep holes have been installed in the north pocket wall. However, the weep holes are located on the river side of the pocket wall and must be plugged in order to avoid having a hole on the river side, and allowing flood water to enter the pocket wall. After plugging the weep holes it may be necessary to provide drainage similar to the Boeing side. b. As for the gates on the Boeing side, a small section of metal had to be removed in order for the ends of the gates to overlap. c. Lowering the J-bolts was difficult and required using the same procedure as on the gates on the Boeing side. However, the J-bolt on the north end of the south gate could not be lowered. It encountered too much resistance. The J-bolt and its supporting bracket appeared to be located similar to the other J-bolts. It was not possible to determine the exact cause for this problem, because it isn't possible to visually inspect where the J-bolt makes contact with the rail. On the north gate, the second J-bolt from the north end of the gate could not be installed because it didn't line up with slot in the rail web. The slots are actuary approximately 6" long, which would be long enough if every J-1'n1t was centered exactly on each slot in the rail. d. The struts were not installed today. It was near the time to open the bridge for traffic. Furthermore, the were installed earlier in the week when each side of the gate was opened. e. The gates were pushed back into the pocket walls using the contractor's pickup. Modifications: In order for the gates to be operated efficiently by a crew during a flood, the gates should be modified. Some of the modifications are necessary for the gates to operate as designed. Other modifications would make the gates easier to operate during an emergency by personnel who may not be too familiar with the gates. Recommended Modifications - 1. On each gate, relocate the J-bolt approximately 2" outside of the C-channel and '/z" towards the edge of the gate. The would reduce the tension of the J-bolts against the side of the rail, eliminate the need for a person to use a pry bar on the river side of the gate to relieve the tension, and allow the use of traditional wrenches to turn the J-bolts. The contractor also recommended change the J-bolts to galvanized, Grade 8, 7/8" diameter. Grind, prime and paint all areas of the gates where the galvanization has been removed or damaged. 2. Remove the gates, align each J-bolt on the rail, and cut the 6" slot on the rail to align with the J-bolt. This will allow the J-bolts to be turned in either direction to engage in the slot. Currently, the all the J-bolts must be oriented in the same direction to allow for engagement in the slots. 3. Revise the length of the last two struts on the Boeing side gate, north end of the north gate. This appears to be a construction problem, and should be corrected by the contractor at no additional cost to the government. 4. Provide drains in the trench for the rail on the Boeing side. This could be accomplished by drilling a series of 3/4" diameter holes through the bottom of the concrete trench into the subgrade. Don Farquhar 3. /s Operational Test of Flood Gates As part of the Lower Cedar River Flood Control Project, flood gates were constructed at each end of the South Boeing Bridge. These flood gates were designed to operate in conjunction with raising the bridge during a flood. Each gate leaf is normally inside a concrete pocket wall on the north and south sides of the bridge, and rolled out across the bridge approach during a flood. This would be accomplished after the bridge is raised. The following is a description of the steps that will be demonstrated during the operation test. These steps apply to each of the four gates leafs. 1. Remove the galvanize steel blocking plate attached to the river side of the pocket wall. This plate is attached to stainless steel bolts embedded in the concrete pocket wall using stainless steel nuts. The plate is designed to block the gap between the pocket wall and the steel ribbed skin of the gate. The blocking plate is "stored" on the pocket wall by turning the plate so that the ribbed edge faces the river. 2. Once the blocking plate is removed, the gate can be pulled out of the pocket wall either manually, or by using a vehicle and tow line. Normally, the gate can be pulled out manually. The gate rolls on a steel rail which is inset a trench in the concrete approach to the bridge. The gate should be rolled out to the center of the bridge until the stainless steel arrow welded on the bottom of the gate aligns with the stainless steel arrow welded on the top edge of the trench. 3. Once the gate is in location, a series of 3-bolts located along the bottom of the gate must be lowered into position by loosening the lock nut. After lowering each ]-bolt, turned it 900 so that the leg of the J-bolt engages in a corresponding slot cut in the rail web. Hold the J-bolt in this position and tighten the lock nut. 4. After all the J-bolts are tightened and the gate is secured to the rail, a series of nonadjustable struts are attached to the gate and anchored to the bridge approach using steel pins that are inserted into a hole in the concrete. A small square steel plate is welded to the one end of the steel pin. The pins are used to cover the holes in the concrete, when not used to secure the struts. NOTE: Each strut is a different length and cannot be interchanged. A number is painted on each strut corresponds to number painted to the attachment slot on the gate. The strut closest to the pocket wall is adjustable. There are two parts to the adjustable strut, which slide together and allow the strut to be either shortened or lengthened. The adjustable strut is used to hold the gate tight against the blocking plate, which is installed as described in the following step. 5. Attach the blocking plate to the end of the pocket wall using the stainless steel nuts. After the blocking plate is in place, adjust the strut to minimize the gap between the blocking plate and the face of the ribbed skin of the gate. The strut can be tightened by hand using the handles attached to the strut screw. 6. After one gate leaf is in place, pull the opposite gate leaf into place. A vertical steel angle on each gate leaf overlap. A rubber seal is attached to the steel angle one gate, and minimizes the flow of water between the ends of the gates. 7. After each gate leaf is in place, the J-bolts tightened, and the struts and blocking plates installed, place a row of sand bags along the bottom of the gate, on the river side. This will minimize water from flowing under the gate. 8. The gates are opened by reversing the procedures described above. It is important to raise the J-bolts until the leg of each J-bolt is inside the bottom rail of the gate. Otherwise, the J-bolts rub against the side of the rail making it difficult to roll the gate into place. Cedar River at Renton Flood Damage Reduction Project Operation and Maintenance Manual I INTRODUCTION 4 1.1 Project Description 4 1.2 Authorization 4 1.3 Location 4 1.4 Project Purpose 4 1.5 Construction History 4 2 PROJECT COOPERATION AGREEMENT 6 2.1 Responsibility of Local Interests 6 2.2 Failure of Non -Federal Interests to Operate and Maintain 6 3 GENERAL PROCEDURES 7 3.1 Approved Regulations 7 3.2 General Rules and Procedures 7 3.3 Duties of the Superintendent 7 3.4 Trespass on Rights-of:way 7 3.5 Improvements or Alterations 8 3.6 Annual Report 8 3.7 Periodic Inspections 8 3.8 Surveys 9 3.9 Checklists 9 3.10 Sequence of Operations 9 4 OPERATIONS DURING HIGH WATER FLOW 10 4.1 General 10 4.2 Procedures to be followed at Flood Stage 10 4.3 Bridge Operation 10 4.4 Levee Operation 11 4.5 Closure Gate Operation 11 4.6 Emergency Repairs 13 5 PROJECT MAINTENANCE 14 5.1 Project Plans 14 5.2 General Notes on Maintenance 14 5.3 Specific Maintenance Procedures 14 6 REPAIR, REPLACEMENT, AND REHABILITATION 17 6.1 Levee. 17 6.2 Drainage Structures. 17 6.3 TideFex Check Valves. 17 7 OUTLINE OF ANNUAL REPORT 18 7.1 General i8 7.2 Earthfill Levee 18 7.3 South Boeing Bridge 18 7.4 Closure Gates 18 7.5 Culvert Tideflex Valve 18 7.6 Landscaping 18 7.7 Conditions During Flood Period i8 I Introduction 1.1 Project Description The project consists of levees and floodwalls along both banks of the/ river, a section of PCC curb wall, and a channel deepened by excavation' Levee sections are minimum 8'-0" wide on top, with 2H:1V or shallower slopes. Some sections of the levee are wider, with a road on top, and some sections in the park are wider with more gradual slopes. The left bank levee from station 0+00 to about station 19+00 is designed to overtop in events greater than the design event, to prevent other areas from overtopping. The floodwalls are steel sheetpile below ground, concrete wall above ground. The sheetpile wall is located on the left bank, from about station 19+00 to about station 29+50, and again on the left bank from about 35+00 to 38+00, and again on the left bank a) Zo7 C) ia"n i6ur9 A) ii5mvlj e) zM0 from station 40+00 to 55+50. On the right bank, from about station 68+00 to ch�,k ii about 73+80, protection is provided by a PCC curb wall. S}akioninj . 13 1.2 Authorization The Cedar River at Renton Flood Damage Reduction Project was constructed under authority of Section 205 of the 1948 Flood control Act, as amended, and subject to local cooperation as set forth in Section 3 of the Flood Control Act of 1936, Public Law 738 as modified be Section 103 of the water Resources Development Act (WRDA) of 1986, Public Law 99-662. 1.3 Location The project area is the lower 1-'/4 miles of the Cedar River in the City of Renton, located in King County, Washington, immediately southeast of the City of Seattle. The Cedar River drainage basin is located southeast of Seattle, Washington, and lies entirely within the boundaries of King County. The basin is approximately 40 miles long, has a maximum width of 10 miles, and drains 188 square miles into Lake Washington at Renton. 1.4 Project Purpose The project is designed to provide protection from the 100-year flood. The project protects portions of downtown Renton, including the Boeing plant and the Renton airport. 1.5 Construction History The river excavation was performed by equipment rental method, using equipment hired from Gary Merlino Construction, Seattle, WA, and DKR Construction Inc, Union Gap, WA. The levee construction was performed by Ceccanti Corp. of Spanaway, Washington. DATE April 1998 May 1998 June 1998 June 1998 August 1998 December 1998 March 1999 April 1999 November 1999 December 2000 EVENT River excavation construction contract advertised PCA executed River excavation construction contract awarded River excavation construction initiated River excavation completed Levee contract advertised Levee contract awarded Levee construction initiated Levee construction complete Flood control complete, transferred to local sponsor 2 Project Cooperation Agreement The Corps of Engineers and the City of Renton have entered into a PCA for this project on May 9, 1998, as required by Public Law (99-662). A copy of the duly executed PCA is included as Appendix A of the Manual. 2.1 Responsibility of Local Interests The responsibility of local interests is defined by Section 3 of the Flood Control Act approved 22 June 1936, Public Law 738 as modified by Section 103 of the WRDA approved 19 November 1986. The project cooperation agreement (appendix A) signed by the City of Renton on 9 May 1998, in accordance with Public Law 738, lists the following responsibilities of the City of Renton. • Accomplish normal items of cooperation listed in article II paragraphs a through j of the project cooperation agreement. • Assume full responsibility for all project costs in excess of Federal cost limitation $5 million as provided in Section 915(a) of the Water Resources Development Act of 1986 (Public Law 99-662, approved 17 November 1986). • Comply with Civil Rights, Uniform Relocation Assistance and Real Property Acquisition regulations as described in Article III paragraph d of the project cooperation agreement. • Guarantee the Government reasonable access to the project for the purpose of inspection and, if necessary, operating, repairing, and maintaining the project. 2.2 Failure of Non -Federal Interests to Operate and Maintain In accordance with Paragraph d, Section 221 of Public Law 91-661, "The Chief of Engineers may undertake performance of those items of cooperation necessary to the functioning of the project for its purposes, if he has first notified the non -Federal interest of its failure to perform the terms of its agreement and has given such interest a reasonable time after such notification to so perform." All costs incurred by the Federal Government in performing O&M of the project that is the responsibility of the non -Federal interest will be reimbursed by the non -Federal interest. Provisions for this are included in Article IX of the project cooperation agreement. 3 General Procedures 3.1 Approved Regulations Regulations for operation and maintenance of local flood control projects have been prescribed by the Secretary of the Army in accordance with authority contained in the Code of Federal Regulations, Title 33 - Navigation and Navigable Waters, Chapter II - Corps of Engineers, Part 208 - Flood Control Regulations, Section 208.10 - Local Flood Protection Works; Maintenance and Operations of Structures and Facilities, hereinafter referred to as the "regulations". Relevant portions of the regulations are included in appendix B. 3.2 General Rules and Procedures General rules for operation and maintenance of local flood control works are given in paragraph 208.10(a) of the regulations. Most duties outlined are self-explanatory. Features requiring clarification for application to this project are covered in the following paragraphs. 3.3 Duties of the Superintendent (Reference paragraph 208.10(a)(2) of the regulations.) The City of Renton shall appoint a permanent committee consisting of or headed by an official designated as the Superintendent who shall have charge of the operation and maintenance of the project. Details of the Superintendent's duties are presented in the regulations. The Superintendent's general duties include training key personnel in maintenance and emergency operations of the project. The Superintendent shall ascertain that all his key people have read the portions of this manual pertaining to their duties. The Superintendent should have addresses and telephone numbers of all key people and a reasonable number of substitutes; key people should in turn have similar information regarding all the people who will assist them. The District Engineer, U.S. Army Corps of Engineers, Seattle, Washington, should be kept advised of the names of the Superintendent and of his committee at all times. Experience has shown the key people should include: • An assistant Superintendent to act in the absence of the Superintendent; and • A sufficient number of people trained to lead maintenance work and inspection of the project during and following any flood fighting operations, and to provide inspection and maintenance during low flow periods. 3.4 Trespass on Rights -of -way (Reference paragraph 208.10(a)(4) of the regulations.) The Superintendent shall not permit any encroachment or trespass upon project rights -of -way which will adversely affect efficient operation and maintenance of the project. 3.5 Improvements or Alterations (Reference paragraph 208.10(a)(5) of the regulations.) No improvements or alterations affecting the flood protective works shall be made without prior determination by the District Engineer, U.S. Army Corps of Engineers, Seattle, Washington, that such improvements or alterations will not adversely affect the function of the protective facilities. Drawings or prints of proposed changes and information concerning methods of construction shall be submitted to the District Engineer sufficiently in advance of the proposed construction to permit adequate time for study and consideration of the work. If approved, drawings or prints in duplicate, showing improvements or alterations as finally constructed, shall be furnished to the District Engineer after work is completed and added to the Operation and Maintenance Manual. Improvements and alterations are defined as non -maintenance activities. Actions necessary to eliminate threats to life and/or property in emergency situations may be taken in advance of approval of drawings and other information describing the corresponding alterations. 3.6 Annual Report Reference paragraph 208.10(a)(6) of the regulations.) Submission of a semi-annua report is required. Seattle District requests that local sponsors compile all inspection, maintenance, and operation information for the year into one submittal. This report shall be submitted 1 January each year to the District Engineer, U.S. Army corps of Engineers, Post Office Box 3755, Seattle, Washington, 98124-2255, ATTN: Emergency Management Branch. The report shall cover the inspection, maintenance, and operation of the protective works, including a chronological log of all operations and dated copies of inspection checklists made during the period of the report. An outline of the -,o, - % r50 _� Superintendent's annual report to the District Engineer is shown in appm!rdf C The nature and date of repairs shall be included in this report. Other items and suggestions relative to public sentiment on the project, its effectiveness, and other allied subjects are considered desirable data for inclusion in this report. 3.7 Periodic Inspections (Reference paragraph 208.10(b)(1), (d)(1), and (h)(1) of the regulations.) Periodic inspections of the levee, drainage and bridge structures are required. Ideally, intervals between periodic inspections should not exceed 90 days. Inspections are required also at such intermediate times as may be necessary to ensure the best possible care of the flood protection project. Periodic inspections shall be made under the supervision of the Superintendent. The following times for conduct of periodic inspections of the levees and drainage structures are furnished for guidance: • prior to the beginning of flood season (1 October); • throughout the duration of high water events; • immediately following each high water period; • during the spring (March or April); • following repair or reconstruction of any portion of the project; • during extreme low flow conditions (15 August - 30 September); • intermediate times as necessary. 3.8 Surveys Surveys of the levees shall be made within 1 year following the first high- water period after completion of construction of the levee, at 3- to 5-year intervals thereafter, and at any time visual inspection indicates surveys are warranted to ensure detection of any settling of the levee. The City of Renton shall perform surveys. Surveys shall include levee top elevations to nearest .10 foot at 100-foot intervals along the centerline. Surveys of the channel shall be made annually by the City of Renton until the City is able to develop a prediction of l i;a t )1 3.9 Checklists JJ The Superintendent shall prepare checklists covering all features of the project for use on each inspection to ensure that no feature of the protective works is overlooked. Items requiring maintenance shall be noted thereon. 3.10 Sequence of Operations Maximum discharge of the Cedar River normally occurs between October and March. Flood season in the Cedar River basin coincides with winter rain and spring snowmelt runoff. During the months of October through March, the Superintendent shall conduct_inspections_ of personnel, equipment, and materials and shall hold practice drills as necessary (but not less than annually) to ensure immediate and efficient flood fighting operations as outlined in section 4 of this manual. Periods of low flow during the summer months shall be utilized to the fullest extent to inspect the project for possible flood damage and to accomplish necessary repairs and maintenance work. SPeL,�-,i.r.►ly� do�� kh�s �.,�i�d� I- (o�u;-c ga+c.s � 4 Operations During High Water Flow 4.1 General This section presents supplementary procedures that are applicable during high water periods. A high water period is defined as a Phase IV flood exceeding 4800 cubic feet per second (CFS) as measured at the Landsburg gage. 4.2 Procedures to be followed at Flood Stage Levee observations shall be made during flood events noting time, location or levee station, and water level (on the riverside of the levee). These yX observations shall be correlated with U.S. Geological Survey (USGS) gage Sv�� readings and records of streamflow. When King County announces a Phase I k- � �c alert for the Cedar River, the Superintendent shall initiate the following steps: 1 a. Locate necessary tools and materials that can readily be made available (quarry spalls, shovels, sandbags, etc.). b. Locate earth moving equipment and trucks that can be made available. C. Assign persons in shifts to provide 24-hour patrol of the levee and project area. Initially, these persons shall make a detailed inspection and report the condition of the project to the Superintendent. d. Assure that persons patrolling the levee are aware of any treed areas and any structures (such as bridge abutments and piers, and gabion walls) on the riverside of the levee, and that these structures and treed areas are inspected frequently to assure that debris is not collecting along or behind them. If debris does collect, it must be cleared immediately to decrease the possibility of damage to the levee. e. Make needed emergency repairs as quickly as possible. 4.3 Bridge Operation Each year the Superintendent shall develop a rating curve for the Cedar River at the South Boeing bridge and determine at what flow the river stage will reach the lower chord of the bridge. That flow will be called the "bridge flow". During any high flow event, the Superintendent shall monitor the flow in the river using either the USGS gage at Landsburg or by monitoring the King County flood warnings. If the Landsburg gage readings are not available, the Superintendent shall rely on the KinkCounty flood phase warning system.,VNhen the Landsburg gage indicates that the bridge flow has occurred, or when the King County flood phase IV is announced, the process to raise the bridge shall begin. At the time the Landsburg gage indicates that the bridge flow has occurred, the Superintendent will have about 4 hours to raise the bridge before that flow arrives at the bridge. The bridge must be raised before the water surface reaches the bottom of the bridge. In the event that the warning system described above fails, the bridge shall be raised if the water is within six inches of the bottom of the bridge. 4.4 Levee Operation , � ev During flood periods, the levee shall be patrolled on an ongoing basis to locate possible sand boils, animal holes, or unusual wetness of the landward slope and to be certain that: • no indications of slides or sloughs are developing; • no wave wash or scouring actions are occurring; • no low reaches of levees exist which may be overtopped except where such overtopping is an intentional part of the project; and • no other conditions exist which might endanger the structure. Immediate steps will be taken to control any condition that endangers the levee and to repair the damaged section. 4.5 Closure Gate Operation _ As part of the Lower Cedar River Flood Control Project, closure gates were constructed at each end of the South Boeing Bridge. These closure gates were designed to operate in conjunction with raising the bridge during a flood. Each gate leaf is normally inside a concrete pocket wall on the north and south sides of the bridge, and rolled out across the bridge approach during a flood. This would be accomplished after the bridge is raised. The following is a description of the steps that will be demonstrated during the operation test. These steps apply to each of the four gates leafs. 1. Remove the steel plates covering the rail trench. 2. Remove the galvanize steel blocking plate attached to the river side of the pocket wall. This plate is attached to stainless steel bolts embedded in the concrete pocket wall using stainless steel nuts. The plate is designed to block the gap between the pocket wall and the steel ribbed skin of the gate. The blocking plate is "stored" on the pocket wall by turning the plate so that the ribbed edge faces the river. 3. Once the blocking plate is removed, the gate can be pulled out of the pocket wall either manually, or by using a vehicle and towline. Normally, the gate can be pulled out manually. The gate rolls on a steel rail that is inset a trench in the concrete approach to the bridge. The gate should be rolled out to the center of the bridge until the stainless steel arrow welded on the bottom of the gate aligns with the stainless steel arrow welded on the top edge of the trench. 4. Once the gate is in location, a series of J-bolts located along the bottom of the gate must be lowered into position by loosening the lock nut. After lowering each J-bolt, turned it 900 so that the leg of the J-bolt engages in a corresponding slot cut in the rail web. Hold the J-bolt in this position and tighten the lock nut. 5. After all the J-bolts are tightened and the gate is secured to the rail, a series of nonadjustable struts are attached to the gate and anchored to the bridge approach using steel pins that are inserted into a hole in the concrete. A small square steel plate is welded to the one end of the steel pin. The pins are used to cover the holes in the concrete, when not used to secure the struts. NOTE: Each strut is a different length and cannot be interchanged. A number is painted on each strut corresponds to number painted to the attachment slot on the gate. The strut closest to the pocket wall is adjustable. There are two parts to the adjustable strut, which slide together and allow the strut to be either shortened or lengthened. The adjustable strut is used to hold the gate tight against the blocking plate, which is installed as described in the following step. 6. Attach the blocking plate to the end of the pocket wall using the stainless steel nuts. After the blocking plate is in place, adjust the strut to minimize the gap between the blocking plate and the face of the ribbed skin of the gate. The strut can be tightened by hand using the handles attached to the strut screw. 7. After one gate leaf is in place, pull the opposite gate leaf into place. A vertical steel angle on each gate leaf overlap. A rubber seal is attached to the steel angle one gate, and minimizes the flow of water between the ends of the gates. 8. After each gate leaf is in place, the J-bolts tightened, and the struts and blocking plates installed, place a row of sand bags along the bottom of the gate, on the river side. This will minimize water from flowing under the gate. 9. Reversing the procedures described above opens the gates. It is important to raise the J-bolts until the leg of each J-bolt is inside the bottom rail of the gate. Otherwise, the J-bolts rub against the side of the rail making it difficult to roll the gate into place. 4.6 Emergency Repairs Emergency repairs described in the following paragraphs may be required during high water stages. These repairs are independent of those that may be required as a result of routine inspections referred to in paragraphs 208.10(a)(2), (b)(1), (c)(1), and (h)(1) of the regulations (see appendix B). Repairs are to be made with semi -impervious to impervious material similar to that in the existing levee. 4.6.1 Degradation Levee bank failures are most likely where there are fluctuating water levels and high stream bank or levee erosion. The use of quarry spalls or larger rock, as required, is recommended to prevent further damage. If it is determined during the post -flood inspection that the emergency repairs were not adequate for bank stabilization, permanent repairs shall be made using materials of adequate size. Permanent repairs shall be coordinated with Seattle District, Corps of Engineers. 4.6.2 Seepage Ground seepage can be removed locally by pumping. The interior drainage watershed is small and capable of temporary ponding of any local storm water runoff. Existing interior drainage conditions do not require installation of permanent pumping facilities. 5 Project Maintenance 5.1 Project Plans Location, sections, and details of the project are shown on the drawings at the end of this manual. — (\tA i Oe\%L 5.2 General Notes on Maintenance 5.2.1 Inspections Thorough inspection of project facilities before each flood season and after each flood is vital. Use of the Superintendent's checklist will ensure that no project feature is overlooked during inspection. 5.2.2 Utilities The location of water, sewer, electrical, and gas lines within the project limits shall be determined before any maintenance measures are taken or repairs are made. 5.2.3 Improvements Improvements shall be inspected to see that all construction is in accordance with standard engineering practice. Fences constructed across the levee must have a 16-foot wide vehicle gate to allow authorized vehicles to travel along the top of the levee as necessary. The City of Renton shall have their own locks on all gates and cables located on the levee ramps or the levee itself. All locks shall be keyed alike. A master key shall be made available to the Superintendent, another master key shall be deposited where it is available at any time to emergency or maintenance personnel, and a master key shall be provided to Seattle District, Corps of Engineers, Emergency Management Branch. 5.3 Specific Maintenance Procedures 5.3.1 Embankment Levee (Reference paragraph 208.10(b)(1) and (2) of the regulations. See appendix B.) The Superintendent shall provide at all times such maintenance as may be required to ensure serviceability of the structure in time of flood. Measures shall be taken to ensure, among other things, that: • a good growth of sod, substantially free of noxious weeds and invasive non- native plant species, is maintained where turf is indicated on the drawings; • all brush, trees and other growth which violate the criteria set forth in this Section are removed from the levee embankment (vegetation specifically planted or preserved by this project shall remain); • all animal burrows, when found, are backfilled with compacted material; • the levee is maintained free of debris and drift, and other encroachments such as buildings, structures, and refuse dumps; and 1, Periodic inspections of the levee prism shall be made under the supervisions of e uperintendent to ensure that the above maintenance measures are being effectively carried out and further to be certain that: • no unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; • no revetment work or riprap has been displaced, washed out, or removed; • no action is taken which will retard or destroy the growth of sod, such as burning grass and weeds during inappropriate seasons and/or applying herbicides; and • no encroachments are being made on the levee rights -of -way which might endanger the structure or hinder its proper and efficient functioning during times of emergency. Immediate steps shall be taken to correct dangerous conditions disclosed by such inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. Vegetation on the levees shall be maintained as follows: • Grass or sod, where turf is indicated on the drawings, shall be maintained in good condition free of noxious weeds and invasive non-native species. Turf shall be mowed to maintain a length between 2 and 12 inches. • All existing trees or shrubs specifically preserved or planted within the rights - of -way for this project shall be inspected to ensure that fallen limbs or trunks are removed, that the top of the levee is unimpeded to vehicle passage, and that erosion of the riverward embankment in the root zones has not occurred. Dead vegetation shall be removed and replaced with suitable species when and where feasible. • Vegetation on the riverward side of the levee system not specifically preserved for this project shall be managed by mowing or by selective cutting or pruning to maintain a maximum height of growth of less than 25 feet and a maximum individual stem diameter at 4 feet above the ground of approximately 4 inches. • Woody vegetation is allowed on the levee slopes where the levee is overbuilt (i.e. the levee side slope is shallower than 1 on 2). When tree trunks become larger than 10 inches in diameter at breast height, then the trees would be considered for removal. Dead or uprooted trees must be removed if the trees could impact levee integrity. Shrubs and blackberries shall not be allowed to grow so thick in the levee slopes that they would obscure visual inspection of the levee. 5.3.2 South Boeing Bridge Specific maintenance procedures for the South Boeing Bridge are beyond the scope of this manual. The Superintendent should satisfy himself that the Boeing Company is performing maintenance as advised in the O&M manual that was prepared for the bridge, and that the bridge is operational. 5.3.3 River Channel The Superintendent shall obtain annual surveys of the river channel, and shall have the river bottom excavated as needed to remove the gravel which will fill the channel. Each year, the Superintendent shall have a HE-RAS model of the river's current conditions created to verify the level of protection. If the 100-year flow is not contained, proceed with excavation. If the 100-year flow is contained, then estimate the condition for the following year, and proceed with dredging if it is anticipated that the 100-year flow would not be contained in the following year. 5.3.4 Closure gates at the South Boeing Bridge �days The superintendent shall inspect the closure gates every",to verify that all parts are still present and in working order. All tools, equipment, and parts required to operate the gates shall be stored together, and shall be inventoried during each inspection. 6 Repair, Replacement, and Rehabilitation 6.1 Levee. Immediate steps will be taken to correct dangerous conditions disclosed by inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. 6.2 Drainage Structures. Immediate steps will be taken to repair damage, replace missing or broken parts, or remedy adverse conditions disclosed by inspections. 6.3 TideFlex Check Valves. The valve should be opened utilizing smooth instruments without scouring or abrading the sides of the valve lip. The debris can then be removed without damage to the valve sides. 7 Outline of Annual Report 1 \0 7.1 General a. Date inspection made. b. Name and official capacities of persons making the inspection. 7.2 Earthfill Levee a. General condition of levee and stream bank riverward of setback levee. b. Erosion or piping. C. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.3 South Boeing Bridge a. Condition of bridge, including truck and equipment on truck. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.4 Closure Gates a. Condition of gates, rails, and braces. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.5 Culvert Tideflex Valve a. Condition of culvert and Tideflex Valve attachment. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.6 Landscapin a. Condition of plants and project area. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 7.7 Conditions During Flood Period In the first annual report following a flood period, the Superintendent shall give a complete chronological log of operations accomplished before, during, and after the flood period, relating particularly to the following items: a. Inspections made immediately prior to the flood, during the flood, and after the flood. b. The continual patrolling of the project during flood periods and a record of events occurring during the flood. C. Record of water levels during the flood. d. Adequacy of personnel and equipment employed during the flood, and detailed information on any deficiencies. Appendix A: Project Cooperation Agreement CAG-98-O64 MODEL PROJECT COOPERATION AGREEMENT FOR SECTION 205 STRUCTURAL FLOOD CONTROL PROJECTS PROJECT COOPERATION AGREEMENT BETWEEN THE DEPARTMENT OF THE ARMY AND THE CITY OF RENTON, WASHINGTON FOR CONSTRUCTION OF THE CEDAR RIVER FLOOD DAMAGE REDUCTION PROJECT T� THIS AGREEMENT is entered into this day of _Mgt�_, 1998, by and between the DEPARTMENT OF THE ARMY (hereinafter the i "Government"), represented by the U.S. Army Engineer for the Seattle District (hereinafter the "District Engineer") and the City of Renton, Washington, (hereinafter the "Non -Federal Sponsor) represented by the Mayor. WITNESSETH, THAT: WHEREAS, the Cedar River Flood Damage Reduction Project at Renton, Washington, (hereinafter the 'Project") was approved for construction by CENWD-ET- P approval of 311/48 pursuant to the authority contained in Section 205 of the Flood Control Act of 1948, as amended, 33 U.S.C. 701s; WHEREAS, the Government and the Non -Federal Sponsor desire to enter into a Project Cooperation Agreement for construction of the Project, as defined in Article I.A. of this Agreement; WHEREAS, Section 103 (a) of the Water Resources Development Act of 1986, Public Law 99-662, as amended, specifies the cost -sharing requirements applicable to the Project; WHEREAS, under Section 205 of the Flood Control Act of 1948, as amended, the Government may expend up to $5,000,000 on a single flood control project; WHEREAS, Section 221 of the Flood Control Act of 1970, Public Law 91-611, as amended, and Section 103 of the Water Resources Development Act of 1986, Public Law 99-662, as amended, provide that the Secretary of the Army shall not commence construction of any water resources project, or separable element thereof, until each non -Federal sponsor has entered into a written agreement to furnish its required cooperation for the project or separable element; WHEREAS, the Non -Federal Sponsor does not qualify for a reduction of the maximum Non -Federal cost share pursuant to the guidelines that implement Section 103(m) of the Water Resources Development Act of 1986, Public Law 99-662, as amended; WHEREAS, the Government and Non -Federal Sponsor have the full authority and capability to perform as hereinafter set forth and intend to cooperate in cost - sharing and financing of the construction of the Project in accordance with the terms of this Agreement. NOW, THEREFORE, the Government and the Non -Federal Sponsor agree as follows: ARTICLE I -- DEFINITIONS AND GENERAL PROVISIONS For purposes of this Agreement: A. The term "Project" shall mean construction of one and one -quarter miles of levees and floodwalls along each bank of the Cedar River, Federal dredging of one and one -quarter miles off the river during initial construction to a depth of approximately four (4) feet, and construction of a spawing channel as generally described in the Cedar River, Renton, Washington, Flood Damage Reduction Study Detailed Project Report of January 14, 1998, approved by the Assistant Secretary of the Army (Civil Works) / Chief of Engineers on February 5, 1998. B. The term "total project costs" shall mean all costs incurred by the Non - Federal Sponsor and the Government in accordance with the terms of this Agreement directly related to construction of the Project. Subject to the provisions of this Agreement, the term shall include, but is not necessarily limited to: engineering and design costs during the preparation of contract plans and specifications; engineering and design costs during construction; the costs of investigations to identify the existence and extent of hazardous substances in accordance with Article XV.A. of this Agreement; costs of historic preservation activities in accordance with Article XVIII.A. of this Agreement; actual construction costs, including the costs of alteration, lowering, raising, or replacement and attendant removal of existing railroad bridges and approaches thereto; supervision and administration costs; costs of participation in the Project Coordination Team in accordance with Article V of this Agreement; costs of contract dispute settlements or awards; the value of lands, easements, rights -of - way, relocations, and suitable borrow and dredged or excavated material disposal areas for which the Government affords credit in accordance with Article IV of this Agreement; and costs of audit in accordance with Article X of this Agreement. The term does not include any costs for operation, maintenance, repair, replacement, or CED205.PCA 3/12/98 7:34 AM rehabilitation; any costs due to betterments; or any costs of dispute resolution under Article VII of this Agreement. C. The term "financial obligation for construction" shall mean a financial obligation of the Government, other than an obligation pertaining to the provision of lands, easements, rights -of -way, relocations, and borrow and dredged or excavated material disposal areas, that results or would result in a cost that is or would be included in total project costs. D. The term "Non -Federal proportionate share" shall mean the ratio of the Non - Federal Sponsor's total cash contribution required in accordance with Articles II.D.1. and II.D.3. of this Agreement to total financial obligations for construction, as projected by the Government. E. The term "period of construction" shall mean the time from the date the Government first notifies the Non -Federal Sponsor in writing, in accordance with Article VI.B. of this Agreement, of the scheduled date for issuance of the solicitation for the first construction contract to the date that the District Engineer notifies the Non -Federal Sponsor in writing of the Government's determination that construction of the Project is complete. F. The term "highway" shall mean any public highway, roadway, street, or way, including any bridge thereof. G. The term "relocation" shall mean providing a functionally equivalent facility to the owner of an existing utility, cemetery, highway or other public facility, or railroad (excluding existing railroad bridges and approaches thereto) when such action is authorized as between the Non -Federal Sponsor and the Facility owner in accordance with applicable legal principles of just compensation. Providing a functionally equivalent facility may take the form of alteration, lowering, raising, or replacement and attendant removal of the affected facility or part thereof. H. The term "fiscal year" shall mean one fiscal year of the Government. The Government fiscal year begins on October 1 and ends on September 30. I. The term "functional portion of the Project" shall mean a portion of the Project that is suitable for tender to the Non -Federal Sponsor to operate and maintain in advance of completion of the entire Project. For a portion of the Project to be suitable for tender, the District Engineer must notify the Non -Federal Sponsor in writing of the Government's determination that the portion of the Project is complete and can function independently and for a useful purpose, although the balance of the Project is not complete. J. The term "betterment" shall mean a change in the design and construction of an element of the Project resulting from the application of standards that the Government determines exceed those that the Government would otherwise apply for accomplishing the design and construction of that element. 3 CED205.PCA 3/12/98 7:34 AM ARTICLE II -- OBLIGATIONS OF THE GOVERNMENT AND THE NON-FEDERAL SPONSOR A. The Government, subject to the availability of funds and using those funds and funds provided by the Non -Federal Sponsor, shall expeditiously construct the Project (including alteration, lowering, raising, or replacement and attendant removal of existing railroad bridges and approaches thereto), applying those procedures usually applied to Federal projects, pursuant to Federal laws, regulations, and policies. 1. The Government shall afford the Non -Federal Sponsor the opportunity to review and comment on the solicitations for all contracts, including relevant plans and specifications, prior to the Government's issuance of such solicitations. The Government shall not issue the solicitation for the first construction contract until the Non -Federal Sponsor has confirmed in writing its willingness to proceed with the Project. To the extent possible, the Government shall afford the Non -Federal Sponsor the opportunity to review and comment on all contract modifications, including change orders, prior to the issuance to the contractor of a Notice to Proceed. In any instance where providing the Non -Federal Sponsor with notification of a contract modification or change order is not possible prior to issuance of the Notice to Proceed, the Government shall provide such notification in writing at the earliest date possible. To the extent possible, the Government also shall afford the Non -Federal Sponsor the opportunity to review and comment on all contract claims prior to resolution thereof. The Government shall consider in good faith the comments of the Non -Federal Sponsor, but the contents of solicitations, award of contracts, execution of contract modifications, issuance of change orders, resolution of contract claims, and performance of all work on the Project (whether the work is performed under contract or by Government personnel), shall be exclusively within the control of the Government. 2. Throughout the period of construction, the District Engineer shall furnish the Non -Federal Sponsor with a copy of the Government's Written Notice of Acceptance of Completed Work for. each contract for the Project. B. The Non -Federal Sponsor may request the Government to accomplish betterments. Such requests shall be in writing and shall describe the betterments requested to be accomplished. If the Government in its sole discretion elects to accomplish the requested betterments or any portion thereof, it shall so notify the Non -Federal Sponsor in a writing that sets forth any applicable terms and conditions, which must be consistent with this Agreement. In the event of conflict between such a writing and this Agreement, this Agreement shall control. The Non -Federal Sponsor shall be solely responsible for all costs due to the requested betterments and shall pay all such costs in accordance with Article VI.C. of this Agreement. C. When the District Engineer determines that the entire Project is complete or that a portion of the Project has become a functional portion of the Project, the District Engineer shall so notify the Non -Federal Sponsor in writing and furnish the Non -Federal Sponsor with an Operation, Maintenance, Repair, Replacement, and Rehabilitation Manual (hereinafter the "OMRR&R Manual") and with copies of all of CED205.PCA 3/12/98 7:34 AM the Government's Written Notices of Acceptance of Completed Work for all contracts for the Project or the functional portion of the Project that have not been provided previously. Upon such notification, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the entire Project or the functional portion of the Project in accordance with Article VIII of this Agreement. D. The Non -Federal Sponsor shall contribute a minimum of 35 percent, but not to exceed 50 percent, of total project costs in accordance with the provisions of this paragraph. 1. The Non -Federal Sponsor shall provide a cash contribution equal to 5 percent of total project costs in accordance with Article VI.B. of this Agreement. 2. In accordance with Article III of this Agreement, the Non -Federal Sponsor shall provide all lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas that the Government determines the Non -Federal Sponsor must provide for the construction, operation, and maintenance of the Project, and shall perform or ensure performance of all relocations that the Government determines to be necessary for the construction, operation, and maintenance of the Project. 3. If the Government projects that the value of the Non -Federal Sponsor's contributions under paragraphs D.1. and D.2. of this Article and Articles V, X, and XV.A. of this Agreement will be less than 35 percent of total project costs, the Non - Federal Sponsor shall provide an additional cash contribution, in accordance with Article VI.B. of this Agreement, in the amount necessary to make the Non -Federal Sponsor's total contribution equal to 35 percent of total project costs. 4. If the Government determines that the value of the Non -Federal Sponsor's contributions provided under paragraphs D.2. and D.3. of this Article and Articles V, X, and XV.A. of this Agreement has exceeded 45 percent of total project costs, the Government, subject to the availability of funds, shall reimburse the Non - Federal Sponsor for any such value in excess of 45 percent of total project costs. After such a determination, the Government, in its sole discretion, may provide any remaining Project lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas and perform any remaining Project relocations on behalf of the Non -Federal Sponsor. E. The Non -Federal Sponsor may request the Government to provide lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas or perform relocations on behalf of the Non -Federal Sponsor. Such requests shall be in writing and shall describe the services requested to be performed. If in its sole discretion the Government elects to perform the requested services or any portion thereof, it shall so notify the Non -Federal Sponsor in a writing that sets forth any applicable terms and conditions, which must be consistent with this Agreement. In the event of conflict between such a writing and this Agreement, this Agreement shall control. The Non -Federal Sponsor shall be solely responsible for all costs of the requested services and shall pay all such costs in accordance with Article VI.C. of this Agreement. Notwithstanding the provision of lands, easements, rights -of -way, and 5 CED205TCA 3/12/98 7:34 AM suitable borrow and dredged or excavated material disposal areas or performance of relocations by the Government, the Non -Federal Sponsor shall be responsible, as between the Government and the Non -Federal Sponsor, for the costs of cleanup and response in accordance with Article XV.C. of this Agreement. F. The Government shall perform a final accounting in accordance with Article VI.D. of this Agreement to determine the contributions provided by the Non -Federal Sponsor in accordance with paragraphs B., D., and E. of this Article and Articles V, X, and XV.A. of this Agreement and to determine whether the Non -Federal Sponsor has met its obligations under paragraphs B., D., and E. of this Article. G. The Non -Federal Sponsor shall not use Federal funds to meet the Non - Federal Sponsor's share of total project costs under this Agreement unless the Federal granting agency verifies in writing that the expenditure of such funds is expressly authorized by statute. H. In the exercise of their respective rights and obligations under this Agreement, the Non -Federal Sponsor and the Government agree to comply with all applicable Federal and State laws and regulations, including, but not limited to, Section 601 of the Civil Rights Act of 1964, Public Law 88-352 (42 U. S. C. 2000d), and Department of Defense Directive 5500.11 issued pursuant thereto, as well as Army Regulations 600-7, entitled "Nondiscrimination on the Basis of Handicap in Programs and Activities Assisted or Conducted by the Department of the Army, and Section 402 of the Water Resources Development Act of 1986, as amended (33 U. S. C. 70lb- 12), requiring non -Federal preparation and implementation of flood plain management plans. I. Not less than once each year the Non -Federal Sponsor shall inform affected interests of the extent of protection afforded by the Project. J. The Non -Federal Sponsor shall publicize flood plain information in the area concerned and shall provide this information to zoning and other regulatory agencies for their use in preventing unwise future development in the flood plain and in adopting such regulations as may be necessary to prevent unwise future development and to ensure compatibility with protection levels provided by the Project. K. The Non -Federal Sponsor shall ensure that the modification to the south Boeing Bridge described in paragraph 4.06 of the DPR is provided, operated, maintained, repaired, replaced, and rehabilitated at no Federal expense, in a manner compatible with the project's authorized purposes and in accordance with applicable Federal and State laws and regulations and any specific directions prescribed by the Federal Government. ARTICLE III -- LANDS, RELOCATIONS, DISPOSAL AREAS, AND PUBLIC LAW 91-646 COMPLIANCE A. The Government, after consultation with the Non -Federal Sponsor, shall determine the lands, easements, and rights -of -way required for the construction, operation, and maintenance of the Project, including those required for relocations, CED205TCA 3/12/98 7:34 AM borrow materials, and dredged or excavated material disposal. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions, including maps as appropriate, of the lands, easements, and rights -of - way that the Government determines the Non -Federal Sponsor must provide, in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with acquisition of such lands, easements, and rights -of -way. Prior to the end of the period of construction, the Non -Federal Sponsor shall acquire all lands, easements, and rights -of -way set forth in such descriptions. Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non - Federal Sponsor shall provide the Government with authorization for entry to all lands, easements, and rights -of -way the Government determines the Non -Federal Sponsor must provide for that contract. For so long as the Project remains authorized, the Non -Federal Sponsor shall ensure that lands, easements, and rights - of -way that the Government determines to be required for the operation and maintenance of the Project and that were provided by the Non -Federal Sponsor are retained in public ownership for uses compatible with the authorized purposes of the Project. B. The Government, after consultation with the Non -Federal Sponsor, shall determine the improvements required on lands, easements, and rights -of -way to enable the proper disposal of dredged or excavated material associated with the construction, operation, and maintenance of the Project. Such improvements may include, but are not necessarily limited to, retaining dikes, wasteweirs, bulkheads, embankments, monitoring features, stilling basins, and de -watering pumps and pipes. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions of such improvements in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with construction of such improvements. Prior to the end of the period of construction, the Non -Federal Sponsor shall provide all improvements set forth in such descriptions. Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non -Federal Sponsor shall prepare plans and specifications for all improvements the Government determines to be required for the proper disposal of dredged or excavated material under that contract, submit such plans and specifications to the Government for approval, and provide such improvements in accordance with the approved plans and specifications. C. The Government, after consultation with the Non -Federal Sponsor, shall determine the relocations necessary for the construction, operation, and maintenance of the Project, including those necessary to enable the removal of borrow materials and the proper disposal of dredged or excavated material. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions, including maps as appropriate, of such relocations in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with such relocations. Prior to the end of the period of construction, the Non -Federal Sponsor shall perform or ensure the performance of all relocations as set forth in such descriptions. CED205TCA 3/12/98 7:34 AM Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non -Federal Sponsor shall prepare or ensure the preparation of plans and specifications for, and perform or ensure the performance of, all relocations the Government determines to be necessary for that contract. D. The Non -Federal Sponsor in a timely manner shall provide the Government with such documents as are sufficient to enable the Government to determine the value of any contribution provided pursuant to paragraph A., B., or C. of this Article. Upon receipt of such documents the Government, in accordance with Article IV of this Agreement and in a timely manner, shall determine the value of such contribution, include such value in total project costs, and afford credit for such value toward the Non -Federal Sponsor's share of total project costs. E. The Non -Federal Sponsor shall comply with the applicable provisions of the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970, Public Law 91-646, as amended by Title IV of the Surface Transportation and Uniform Relocation Assistance Act of 1987 (Public Law 100-17), and the Uniform Regulations contained in 49 C.F.R. Part 24, in acquiring lands, easements, and rights -of -way required for the construction, operation, and maintenance of the Project, including those necessary for relocations, borrow materials, and dredged or excavated material disposal, and shall inform all affected persons of applicable benefits, policies, and procedures in connection with said Act. ARTICLE IV -- CREDIT FOR VALUE OF LANDS, RELOCATIONS, AND DISPOSAL AREAS A. The Non -Federal Sponsor shall receive credit toward its share of total project costs for the value of the lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas that the Non -Federal Sponsor must provide pursuant to Article III of this Agreement, and for the value of the relocations that the Non -Federal Sponsor must perform or for which it must ensure performance pursuant to Article III of this Agreement. However, the Non -Federal Sponsor shall not receive credit for the value of any lands, easements, rights -of -way, relocations, or borrow and dredged or excavated material disposal areas that have been provided previously as an item of cooperation for another Federal project. The Non -Federal Sponsor also shall not receive credit for the value of lands, easements, rights -of -way, relocations, or borrow and dredged or excavated material disposal areas to the extent that such items are provided using Federal funds unless the Federal granting agency verifies in writing that such credit is expressly authorized by statute. B. For the sole purpose of affording credit in accordance with this Agreement, the value of lands, easements, and rights -of -way, including those necessary for relocations, borrow materials, and dredged or excavated material disposal, shall be CED205TCA 3/12/98 7:34 AM 61 the fair market value of the real property interests, plus certain incidental costs of acquiring those interests, as determined in accordance with the provisions of this paragraph. 1. Date of Valuation. The fair market value of lands, easements, or rights - of -way owned by the Non -Federal Sponsor on the effective date of this Agreement shall be the fair market value of such real property interests as of the date the Non - Federal Sponsor provides the Government with authorization for entry thereto. The fair market value of lands, easements, or rights -of -way acquired by the Non -Federal Sponsor after the effective date of this Agreement shall be the fair market value of such real property interests at the time the interests are acquired. 2. General Valuation Procedure. Except as provided in paragraph B.3. of this Article, the fair market value of lands, easements, or rights -of -way shall be determined in accordance with paragraph B.2.a. of this Article, unless thereafter a different amount is determined to represent fair market value in accordance with paragraph B.2.b. of this Article. a. The Non -Federal Sponsor shall obtain, for each real property interest, an appraisal that is prepared by a qualified appraiser who is acceptable to the Non - Federal Sponsor and the Government. The appraisal must be prepared in accordance with the applicable rules of just compensation, as specified by the Government. The fair market value shall be the amount set forth in the Non -Federal Sponsor's appraisal, if such appraisal is approved by the Government. In the event the Government does not approve the Non -Federal Sponsor's appraisal, the Non -Federal Sponsor may obtain a second appraisal, and the fair market value shall be the amount set forth in the Non -Federal Sponsor's second appraisal, if such appraisal is approved by the Government. In the event the Government does not approve the Non -Federal Sponsor's second appraisal, or the Non -Federal Sponsor chooses not to obtain a second appraisal, the Government shall obtain an appraisal, and the fair market value shall be the amount set forth in the Government's appraisal, if such appraisal is approved by the Non -Federal Sponsor. In the event the Non -Federal Sponsor does not approve the Government's appraisal, the Government, after consultation with the Non -Federal Sponsor, shall consider the Government's and the Non -Federal Sponsor's appraisals and determine an amount based thereon, which shall be deemed to be the fair market value. b. Where the amount paid or proposed to be paid by the Non -Federal Sponsor for the real property interest exceeds the amount determined pursuant to paragraph B.2.a. of this Article, the Government, at the request of the Non -Federal Sponsor, shall consider all factors relevant to determining fair market value and, in its sole discretion, after consultation with the Non -Federal Sponsor, may approve in writing an amount greater than the amount determined pursuant to paragraph B.2.a. of this Article, but not to exceed the amount actually paid or proposed to be paid. If the Government approves such an amount, the fair market value shall be the lesser of the approved amount or the amount paid by the Non -Federal Sponsor, but no less than the amount determined pursuant to paragraph B.2.a. of this Article. CED205.PCA 3/12/98 7:34 AM 3. Eminent Domain Valuation Procedure. For lands, easements, or rights - of -way acquired by eminent domain proceedings instituted after the effective date of this Agreement, the Non -Federal Sponsor shall, prior to instituting such proceedings, submit to the Government notification in writing of its intent to institute such proceedings and an appraisal of the specific real property interests to be acquired in such proceedings. The Government shall have 60 days after receipt of such a notice and appraisal within which to review the appraisal, if not previously approved by the Government in writing. a. If the Government previously has approved the appraisal in writing, or if the Government provides written approval of, or takes no action on, the appraisal within such 60-day period, the Non -Federal Sponsor shall use the amount set forth in such appraisal as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. b. If the Government provides written disapproval of the appraisal, including the reasons for disapproval, within such 60-day period, the Government and the Non -Federal Sponsor shall consult in good faith to promptly resolve the issues or areas of disagreement that are identified in the Government's written disapproval. If, after such good faith consultation, the Government and the Non - Federal Sponsor agree as to an appropriate amount, then the Non -Federal Sponsor shall use that amount as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. If, after such good faith consultation, the Government and the Non -Federal Sponsor cannot agree as to an appropriate amount, then the Non -Federal Sponsor may use the amount set forth in its appraisal as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. c. For lands, easements, or rights -of -way acquired by eminent domain proceedings instituted in accordance with sub -paragraph B.3. of this Article, fair market value shall be either the amount of the court award for the real property interests taken, to the extent the Government determined such interests are required for the construction, operation, and maintenance of the Project, or the amount of any stipulated settlement or portion thereof that the Government approves in writing. 4. Incidental Costs. For lands, easements, or rights -of -way acquired by the Non -Federal Sponsor within a five-year period preceding the effective date of this Agreement, or at any time after the effective date of this Agreement, the value of the interest shall include the documented incidental costs of acquiring the interest, as determined by the Government, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. Such incidental costs shall include, but not necessarily be limited to, closing and title costs, appraisal costs, survey costs, attorney's fees, plat maps, and mapping costs, as well as the actual amounts expended for payment of any Public Law 91-646 relocation assistance benefits provided in accordance with Article III.E. of this Agreement. C. After consultation with the Non -Federal Sponsor, the Government shall determine the value of relocations in accordance with the provisions of this paragraph. lul CED205TCA 3/12/98 7:34 AM 1. For a relocation other than a highway, the value shall be only that portion of relocation costs that the Government determines is necessary to provide a functionally equivalent facility, reduced by depreciation, as applicable, and by the salvage value of any removed items. 2. For a relocation of a highway, the value shall be only that portion of relocation costs that would be necessary to accomplish the relocation in accordance with the design standard that the State of Washington would apply under similar conditions of geography and traffic load, reduced by the salvage value of any removed items. 3. Relocation costs shall include, but not necessarily be limited to, actual costs of performing the relocation; planning, engineering and design costs; supervision and administration costs; and documented incidental costs associated with performance of the relocation, but shall not include any costs due to betterments, as determined by the Government, nor any additional cost of using new material when suitable used material is available. Relocation costs shall be subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. D. The value of the improvements made to lands, easements, and rights -of -way for the proper disposal of dredged or excavated material shall be the costs of the improvements, as determined by the Government, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. Such costs shall include, but not necessarily be limited to, actual costs of providing the improvements; planning, engineering and design costs; supervision and administration costs; and documented incidental costs associated with providing the improvements, but shall not include any costs due to betterments, as determined by the Government. ARTICLE V -- PROJECT COORDINATION TEAM A. To provide for consistent and effective communication, the Non -Federal Sponsor and the Government, not later than 30 days after the effective date of this Agreement, shall appoint named senior representatives to a Project Coordination Team. Thereafter, the Project Coordination Team shall meet regularly until the end of the period of construction. The Government's Project Manager and a counterpart named by the Non -Federal Sponsor shall co-chair the Project Coordination Team. B. The Government's Project Manager and the Non -Federal Sponsor's counterpart shall keep the Project Coordination Team informed of the progress of construction and of significant pending issues and actions, and shall seek the views of the Project Coordination Team on matters that the Project Coordination Team generally oversees. C. Until the end of the period of construction, the Project Coordination Team shall generally oversee the Project, including issues related to design; plans and specifications; scheduling; real property and relocation requirements; real property acquisition; contract awards and modifications; contract costs; the Government's cost 11 CED205.PCA 3/12/98 7:34 AM projections; final inspection of the entire Project or functional portions of the Project; preparation of the proposed OMRR&R Manual; anticipated requirements and needed capabilities for performance of operation, maintenance, repair, replacement, and rehabilitation of the Project; and other related matters. D. The Project Coordination Team may make recommendations that it deems warranted to the District Engineer on matters that the Project Coordination Team generally oversees, including suggestions to avoid potential sources of dispute. The Government in good faith shall consider the recommendations of the Project Coordination Team. The Government, having the legal authority and responsibility for construction of the Project, has the discretion to accept, reject, or modify the Project Coordination Team's recommendations. E. The costs of participation in the Project Coordination Team shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. ARTICLE VI -- METHOD OF PAYMENT A. The Government shall maintain current records of contributions provided by the parties and current projections of total project costs and costs due to betterments. At least quarterly, the Government shall provide the Non -Federal Sponsor with a report setting forth all contributions provided to date and the current projections of total project costs, of total costs due to betterments, of the components of total project costs, of each party's share of total project costs, of the Non -Federal Sponsor's total cash contributions required in accordance with Articles II.B., II.D., and II.E. of this Agreement, and of the non -Federal proportionate share. On the effective date of this Agreement, total project costs are projected to be $6,648,000, and the Non -Federal Sponsor's cash contribution required under Article II.D. of this Agreement is projected to be $2,327,000. Such amounts are estimates subject to adjustment by the Government and are not to be construed as the total financial responsibilities of the Government and the Non -Federal Sponsor. B. The Non -Federal Sponsor shall provide the cash contribution required under Articles II.D.1. and II.D.3. of this Agreement in accordance with the following provisions: Not less than 30 calendar days prior to the scheduled date for issuance of the solicitation for the first construction contract, the Government shall notify the Non -Federal Sponsor in writing of such scheduled date and the funds the Government determines to be required from the Non -Federal Sponsor to meet its projected cash contribution under Articles II.D.1. and II.D.3. of this Agreement. Not later than such scheduled date, the Non -Federal Sponsor shall provide the Government with the full amount of the required funds by delivering a check payable to "FAO, USAED, Portland (Seattle)" to the District Engineer. The Government shall draw from the funds provided by the Non -Federal Sponsor such sums as the Government deems necessary to cover: (a) the non -Federal proportionate share of financial obligations for construction incurred prior to the commencement of the period of construction; and (b) the non -Federal proportionate share of financial obligations for construction as they are incurred during the period of construction. In the event the Government determines that the Non -Federal Sponsor must provide 12 CED205TCA 3/12/98 7:34 AM additional funds to meet the Non -Federal Sponsor's cash contribution, the Government shall notify the Non -Federal Sponsor in writing of the additional funds required. Within 60 calendar days thereafter, the Non -Federal Sponsor shall provide the Government with a check for the full amount of the additional required funds. C. In advance of the Government incurring any financial obligation associated with additional work under Article II.B. or II.E. of this Agreement, the Non -Federal Sponsor shall provide the Government with the full amount of the funds required to pay for such additional work by delivering a check payable to "FAO, USAED, Portland (Seattle)" to the District Engineer. The Government shall draw from the funds provided by the Non -Federal Sponsor such sums as the Government deems necessary to cover the Government's financial obligations for such additional work as they are incurred. In the event the Government determines that the Non -Federal Sponsor must provide additional funds to meet its cash contribution, the Government shall notify the Non -Federal Sponsor in writing of the additional funds required. Within 30 calendar days thereafter, the Non -Federal Sponsor shall provide the Government with a check for the full amount of the additional required funds. D. Upon completion of the Project or termination of this Agreement, and upon resolution of all relevant claims and appeals, the Government shall conduct a final accounting and furnish the Non -Federal Sponsor with the results of the final accounting. The final accounting shall determine total project costs, each party's contribution provided thereto, and each party's required share thereof. The final accounting also shall determine costs due to betterments and the Non -Federal Sponsor's cash contribution provided pursuant to Article II.B. of this Agreement. 1. In the event the final accounting shows that the total contribution provided by the Non -Federal Sponsor is less than its required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement, the Non -Federal Sponsor shall, no later than 90 calendar days after receipt of written notice, make a cash payment to the Government of whatever sum is required to meet the Non -Federal Sponsor's required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement. 2. In the event the final accounting shows that the total contribution provided by the Non -Federal Sponsor exceeds its required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement, the Government shall, subject to the availability of funds, refund the excess to the Non -Federal Sponsor no later than 90 calendar days after the final accounting is complete; however, the Non -Federal Sponsor shall not be entitled to any refund of the 5 percent cash contribution required pursuant to Article II.D.1. of this Agreement. In the event existing funds are not available to refund the excess to the Non -Federal Sponsor, the Government shall seek such appropriations as are necessary to make the refund. 13 CED205.PCA 3/12/98 7:34 AM ARTICLE VII -- DISPUTE RESOLUTION As a condition precedent to a party bringing any suit for breach of this Agreement, that party must first notify the other party in writing of the nature of the purported breach and seek in good faith to resolve the dispute through negotiation. If the parties cannot resolve the dispute through negotiation, they may agree to a mutually acceptable method of non -binding alternative dispute resolution with a qualified third party acceptable to both parties. The parties shall each pay 50 percent of any costs for the services provided by such a third party as such costs are incurred. The existence of a dispute shall not excuse the parties from performance pursuant to this Agreement. ARTICLE VIII -- OPERATION, MAINTENANCE, REPAIR, REPLACEMENT, AND REHABILITATION (OMRR&R) A. Upon notification in accordance with Article II.C. of this Agreement and for so long as the Project remains authorized, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the entire Project or the functional portion of the Project, at no cost to the Government, in a manner compatible with the Project's authorized purposes and in accordance with applicable Federal and State laws as provided in Article XI of this Agreement and specific directions prescribed by the Government in the OMRR&R Manual and any subsequent amendments thereto. B. The Non -Federal Sponsor hereby gives the Government a right to enter, at reasonable times and in a reasonable manner, upon property that the Non -Federal Sponsor owns or controls for access to the Project for the purpose of inspection and, if necessary, for the purpose of completing, operating, maintaining, repairing, replacing, or rehabilitating the Project. If an inspection shows that the Non -Federal Sponsor for any reason is failing to perform its obligations under this Agreement, the Government shall send a written notice describing the non-performance to the Non -Federal Sponsor. If, after 30 calendar days from receipt of notice, the Non -Federal Sponsor continues to fail to perform, then the Government shall have the right to enter, at reasonable times and in a reasonable manner, upon property that the Non -Federal Sponsor owns or controls for access to the Project for the purpose of completing, operating, maintaining, repairing, replacing, or rehabilitating the Project. No completion, operation, maintenance, repair, replacement, or rehabilitation by the Government shall operate to relieve the Non -Federal Sponsor of responsibility to meet the Non -Federal Sponsor's obligations as set forth in this Agreement, or to preclude the Government from pursuing any other remedy at law or equity to ensure faithful. performance pursuant to this Agreement. ARTICLE IX -- INDEMNIFICATION The Non -Federal Sponsor shall hold and save the Government free from all damages arising from the construction, operation, maintenance, repair, replacement, and rehabilitation of the Project and any Project -related betterments, except for damages due to the fault or negligence of the Government or its contractors. 14 CED205TCA 3/12/98 7:34 AM ARTICLE X -- MAINTENANCE OF RECORDS AND AUDIT A. Not later than 60 calendar days after the effective date of this Agreement, the Government and the Non -Federal Sponsor shall develop procedures for keeping books, records, documents, and other evidence pertaining to costs and expenses incurred pursuant to this Agreement. These procedures shall incorporate, and apply as appropriate, the standards for financial management systems set forth in the Uniform Administrative Requirements for Grants and Cooperative Agreements to State and Local Governments at 32 C.F.R. Section 33.20. The Government and the Non - Federal Sponsor shall maintain such books, records, documents, and other evidence in accordance with these procedures and for a minimum of three years after the period of construction and resolution of all relevant claims arising therefrom. To the extent permitted under applicable Federal laws and regulations, the Government and the Non -Federal Sponsor shall each allow the other to inspect such books, documents, records, and other evidence. B. Pursuant to 32 C.F.R. Section 33.26, the Non -Federal Sponsor is responsible for complying with the Single Audit Act of 1984, 31 U.S.C. Sections 7501-7507, as implemented by Office of Management and Budget (OMB) Circular No. A-133 and Department of Defense Directive 7600.10. Upon request of the Non -Federal Sponsor and to the extent permitted under applicable Federal laws and regulations, the Government shall provide to the Non -Federal Sponsor and independent auditors any information necessary to enable an audit of the Non -Federal Sponsor's activities under this Agreement. The costs of any non -Federal audits performed in accordance with this paragraph shall be allocated in accordance with the provisions of OMB Circulars A-87 and A-133, and such costs as are allocated to the Project shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. C. In accordance with 31 U.S.C. Section 7503, the Government may conduct audits in addition to any audit that the Non -Federal Sponsor is required to conduct under the Single Audit Act. Any such Government audits shall be conducted in accordance with Government Auditing Standards and the cost principles in OMB Circular No. A-87 and other applicable cost principles and regulations. The costs of Government audits performed in accordance with this paragraph shall be included in total project costs and cost shared in accordance with the provisions of this agreement. ARTICLE XI -- FEDERAL AND STATE LAWS In the exercise of their respective rights and obligations under this Agreement, the Non -Federal Sponsor and the Government agree to comply with all applicable Federal and State laws and regulations, including, but not limited to, Section 601 of the Civil Rights Act of 1964, Public Law 88-352 (42 U.S.C. 2000d), and Department of Defense Directive 5500.11 issued pursuant thereto, as well as Army Regulations 600- 7, entitled "Nondiscrimination on the Basis of Handicap in Programs and Activities Assisted or Conducted by the Department of the Army". 15 CED205TCA 3/12/98 7:34 AM ARTICLE XII -- RELATIONSHIP OF PARTIES A. In the exercise of their respective rights and obligations under this Agreement, the Government and the Non -Federal Sponsor each act in an independent capacity, and neither is to be considered the officer, agent, or employee of the other. B. In the exercise of its rights and obligations under this Agreement, neither party shall provide, without the consent of the other party, any contractor with a release that waives or purports to waive any rights such other party may have to seek relief or redress against such contractor either pursuant to any cause of action that such other party may have or for violation of any law. ARTICLE XIII -- OFFICIALS NOT TO BENEFIT No member of or delegate to the Congress, nor any resident commissioner, shall be admitted to any share or part of this Agreement, or to any benefit that may arise therefrom. ARTICLE XIV -- TERMINATION OR SUSPENSION A. If at any time the Non -Federal Sponsor fails to fulfill its obligations under Article II.B., II.D., II.E., VI, or XVIII.C. of this Agreement, the Government shall terminate this Agreement or suspend future performance under this Agreement unless the Assistant Secretary of the Army (Civil Works) determines that continuation of work on the Project is in the interest of the United States or is necessary in order to satisfy agreements with any other non -Federal interests in connection with the Project. B. If the Government fails to receive annual appropriations in amounts sufficient to meet Project expenditures for the then -current or upcoming fiscal year, the Government shall so notify the Non -Federal Sponsor in writing, and 60 calendar days thereafter either party may elect without penalty to terminate this Agreement or to suspend future performance under this Agreement. In the event that either party elects to suspend future performance under this Agreement pursuant to this paragraph, such suspension shall remain in effect until such time as the Government receives sufficient appropriations or until either the Government or the Non -Federal Sponsor elects to terminate this Agreement. C. In the event that either party elects to terminate this Agreement pursuant to this Article or Article XV of this Agreement, both parties shall conclude their activities relating to the Project and proceed to a final accounting in accordance with Article VI.D. of this Agreement. D. Any termination of this Agreement or suspension of future performance under this Agreement in accordance with this Article or Article XV of this Agreement shall not relieve the parties of liability for any obligation previously incurred. Any delinquent payment shall be charged interest at a rate, to be determined by the 16 CED205TCA 3/12198 7:34 AM Secretary of the Treasury, equal to 150 per centum of the average bond equivalent rate of the 13-week Treasury bills auctioned immediately prior to the date on which such payment became delinquent, or auctioned immediately prior to the beginning of each additional 3-month period if the period of delinquency exceeds 3 months. ARTICLE XV -- HAZARDOUS SUBSTANCES A. After execution of this Agreement and upon direction by the District Engineer, the Non -Federal Sponsor shall perform, or cause to be performed, any investigations for hazardous substances that the Government or the Non -Federal Sponsor determines to be necessary to identify the existence and extent of any hazardous substances regulated under the Comprehensive Environmental Response, Compensation, and Liability Act (hereinafter "CERCLA"), 42 U.S.C. Sections 9601- 9675, that may exist in, on, or under lands, easements, and rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project. However, for lands that the Government determines to be subject to the navigation servitude, only the Government shall perform such investigations unless the District Engineer provides the Non -Federal Sponsor with prior specific written direction, in which case the Non - Federal Sponsor shall perform such investigations in accordance with such written direction. All actual costs incurred by the Non -Federal Sponsor for such investigations for hazardous substances shall be included in total project costs and cost shared in accordance with the provisions of this Agreement, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. B. In the event it is discovered through any investigation for hazardous substances or other means that hazardous substances regulated under CERCLA exist in, on, or under any lands, easements, or rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project, the Non -Federal Sponsor and the Government shall provide prompt written notice to each other, and the Non - Federal Sponsor shall not proceed with the acquisition of the real property interests until both parties agree that the Non -Federal Sponsor should proceed. C. The Government and the Non -Federal Sponsor shall determine whether to initiate construction of the Project, or, if already in construction, whether to continue with work on the Project, suspend future performance under this Agreement, or terminate this Agreement for the convenience of the Government, in any case where hazardous substances regulated under CERCLA are found to exist in, on, or under any lands, easements, or rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project. Should the Government and the Non -Federal Sponsor determine to initiate or continue with construction after considering any liability that may arise under CERCLA, the Non -Federal Sponsor shall be responsible, as between the Government and the Non -Federal Sponsor, for the costs of clean-up and response, to include the costs of any studies and investigations necessary to determine an appropriate response to the contamination. Such costs shall not be considered a part of total project costs. In the event the Non -Federal Sponsor fails to provide any funds 17 CED205.PCA 3/12/98 7:34 AM necessary to pay for clean up and response costs or to otherwise discharge the Non - Federal Sponsor's responsibilities under this paragraph upon direction by the Government, the Government may, in its sole discretion, either terminate this Agreement for the convenience of the Government, suspend future .performance under this Agreement, or continue work on the Project. D. The Non -Federal Sponsor and the Government shall consult with each other in accordance with Article V of this Agreement in an effort to ensure that responsible parties bear any necessary clean up and response costs as defined in CERCLA. Any decision made pursuant to paragraph C. of this Article shall not relieve any third party from any liability that may arise under CERCLA. E. As between the Government and the Non -Federal Sponsor, the Non -Federal Sponsor shall be considered the operator of the Project for purposes of CERCLA liability. To the maximum extent practicable, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the Project in a manner that will not cause liability to arise under CERCLA. ARTICLE XVI -- NOTICES A. Any notice, request, demand, or other communication required or permitted to be given under this Agreement shall be deemed to have been duly given if in writing and either delivered personally or by telegram or mailed by first-class, registered, or certified mail, as follows: If to the Non -Federal Sponsor: Mayor, City of Renton 200 Mill Street Renton, Washington 98055 If to the Government: District Engineer U.S. Army Engineer District P. O. Box 3755 Seattle, Washington 98124-3755 B. A party may change the address to which such communications are to be directed by giving written notice to the other party in the manner provided in this Article. 18 CED205.PCA 3/12/98 7:34 AM C. Any notice, request, demand, or other communication made pursuant to this Article shall be deemed to have been received by the addressee at the earlier of such time as it is actually received or seven calendar days after it is mailed. ARTICLE XVII -- CONFIDENTIALITY To the extent permitted by the laws governing each party, the parties agree to maintain the confidentiality of exchanged information when requested to do so by the providing party. ARTICLE XVIII -- HISTORIC PRESERVATION A. The costs of identification, survey and evaluation of historic properties shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. B. As specified in Section 7(a) of Public Law 93-291 (16 U.S.C. Section 469c(a)), the costs of mitigation and data recovery activities associated with historic preservation shall be borne entirely by the Government and shall not be included in total project costs, up to the statutory limit of one percent of the total amount the Government is authorized to expend for the Project. C. The Government shall not incur costs for mitigation and data recovery that exceed the statutory one percent limit specified in paragraph B. of this Article unless and until the Assistant Secretary of the Army (Civil Works) has waived that limit in accordance with Section 208(3) of Public Law 96-515 (16 U.S.C. Section 469c-2(3)). Any costs of mitigation and data recovery that exceed the one percent limit shall not be included in total project costs but shall be cost shared between the Non -Federal Sponsor and the Government consistent with the minimum non -Federal cost sharing requirements for the underlying flood control purpose, as follows: 35 percent borne by the Non -Federal Sponsor, and 65 percent borne by the Government. ARTICLE XIX -- LIMITATION ON GOVERNMENT EXPENDITURES In accordance with Section 205 of the Flood Control Act of 1948, as amended, the Government's financial participation in the Project is limited to $5,000,000 which shall include all Federal funds expended by the Government for planning, design, and implementation of the project except for coordination account funds expended prior to the first work allowance for study initiation. Notwithstanding any other provision of this Agreement, the Non -Federal Sponsor shall be responsible for all costs in excess of this amount. 19 CED205TCA 3/12/98 7:34 AM IN WITNESS WHEREOF, the parties hereto have executed this Agreement, which shall become effective upon the date it is signed by the District Engineer. THE DEPARTMENT OF THE ARMY Vrl BY: 4�' J MES M. RIGSBY C lonel, Corps of Engineers Seattle District Engineer DATE: " DATE: THE CITY OF RENTON, WAS GTON BY: JESSE TANNER Mayor CED205.PCA 3/12/98 7:34 AM CERTIFICATE OF AUTHORITY I, LAWRENCE J. WARREN, do hereby certify that I am the principal legal officer of the City of Renton, Washington, that the City of Renton is a legally constituted public body with full authority and legal capability to perform the terms of the Agreement between the Department of the Army and the City of Renton, Washington, in connection with the Cedar River, Renton, Washington Flood Damage Reduction Project, and to pay damages in accordance with the terms of this Agreement, if necessary, in the event of the failure to perform, as required by Section 221 of Public Law 91-911 (42 U.S.C. Section 1962d-5b), and that the persons who have executed this Agreement on behalf of the City of Renton have acted within their statutory authority. IN WITNESS WHEREOF, I have made and executed this certification this �e fk day of 1998. BY: LAWRENCE J. WARREN Renton City Attorney 21 CED205TCA 3/12/98 7:34 AM CERTIFICATION REGARDING LOBBYING The undersigned certifies, to the best of his or her knowledge and belief that: (1) No Federal appropriated funds have been paid or will be paid, by or on behalf of the undersigned, to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress, an officer or employee of Congress, or an employee of a Member of Congress in connection with the awarding of any Federal contract, the making of any Federal grant, the making of any Federal loan, the entering into of any cooperative agreement, and the extension, continuation, renewal, amendment, or modification of any Federal contract, grant, loan, or cooperative agreement. (2) If any funds other than Federal appropriated funds have been paid or will be paid to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress, an officer or employee of Congress, or an employee of a Member of Congress in connection with this Federal contract, grant, loan, or cooperative agreement, the undersigned shall complete and submit Standard Form-LLL, "Disclosure Form to Report Lobbying," in accordance with its instructions. (3) The undersigned shall require that the language of this certification be included in the award documents for all subawards at all tiers (including subcontracts, subgrants, and contracts under grants, loans, and cooperative agreements) and that all subrecipients shall certify and disclose accordingly. This certification is a material representation of fact upon which reliance was placed when this transaction was made or entered into. Submission of this certification is a prerequisite for making or entering into this transaction imposed by Section 1352, Title 31, U.S. Code. Any person who fails to file the required certification shall be subject to a civil penalty of not less than $10,000 and not more than $100,000 for each such failure. CITY OF RENTON, WASHINGTON BY: SSE TANNER Mayor DATE: 22 CED205TCA 3/12/98 7:34 AM Appendix B: Flood Control Regulations Pt. 208 of Transportation, and Department of Commerce. (vi) Data provided by ports, local fa- cilities, and State or local govern- ments. (vii) Data from trade journals and publications. (viii) Site visits and inspections. (2) Notice of Violation. Once a report- ing violation is determined to have oc- curred, the Chief of the Waterborne Commerce Statistics Center will notify the responsible party and allow 30 days for the reports to be filed after the fact. If the reports are not filed within this 30-day notice period, then appro- priate civil or criminal actions will be undertaken by the Army Corps of Engi- neers, including the proposal of civil or criminal penalties for noncompliance. Typical cases for criminal or civil ac- tion include, but are not limited to, those violations which are willful, re- peated, or have a substantial impact in the opinion of the Chief of the Water- borne Commerce Statistics Center. (3) Administrative Assessment of Civil Penalties. Civil penalties may be assessed in the following manner. (i) Authorization. If the Chief of the Waterborne Commerce Statistics Cen- ter finds that a person or entity has failed to comply with any of the provi- sions specified herein, he is authorized to assess a civil penalty in accordance with the Class I penalty provisions of 33 CFR part 326. Provided, however, that the procedures in 33 CFR part 326 specifically implementing the Clean Water Act (33 U.S.C. 1319(g)(4)), public notice, comment period, and state co- ordination, shall not apply. (ii) Initiation. The Chief of the Wa- terborne Commerce Statistics Center will prepare and process a proposed civil penalty order which shall state the amount of the penalty to be as- sessed, describe by reasonable specific- ity the nature of the violation, and in- dicate the applicable provisions of 33 CFR part 326. (iii) Hearing Requests. Recipients of a proposed civil penalty order may file a written request for a hearing or other proceeding. This request shall be as specified in 33 CFR part 326 and shall be addressed to the Director of the Water Resources Support Center, Casey Building, Fort Belvoir, Virginia 22060- 96 33 CFR Ch. II (7-1-98 Edition) 5586, who will provide the requesting person or entity with a reasonable op- portunity to present evidence regard- ing the issuance, modification, or rev- ocation of the proposed order. There- after, the Director of the Water Re- sources Center shall issue a final order. (4) Additional Remedies. Appropriate cases may also be referred to the local U.S. Attorney for prosecution, penalty collection, injunctive, and other .relief by the Chief of the Waterborne Com- merce Statistics Center. [56 FR 13765, Apr. 4, 19911 PART 208—FLOOD CONTROL REGULATIONS Sec. 208.10 Local flood protection works; mainte- nance and operation of structures and fa- cilities. 208.11 Regulations for use of storage allo- cated for flood control or navigation and/ or project operation at reservoirs subject to prescription of rules and regulations by the Secretary of the Army in the in- terest of flood control and navigation. 208.19 Marshall Ford Dam and Reservoir (Mansfield Dam and Lake Travis), Colo- rado River, Tex. 208.22 Twin Buttes Dam and Reservoir, Mid- dle and South Concho Rivers, Tex. 208.25 Pensacola Dam and Reservoir, Grand (Neosho) River. Okla. 208.26 Altus Dam and Reservoir. North Fork Red River, Okla. 208.27 Fort Cobb Dam and Reservoir, Pond (Cobb) Creek. Oklahoma. 208.28 Foss Dam and Reservoir, Washita River, Oklahoma. 208.29 Arbuckle Dam and Lake of the Ar- buckles, Rock Creek, Okla. 208.32 Sanford Dam and Lake Meredith, Ca- nadian River, Tex. 208.33 Cheney Dam and Reservoir, North Fork of Ninnescah River, Kans. 208.34 Norman Dam and Lake Thunderbird, Little River. Okla. 208.82 Hetch Hetchy, Cherry Valley, and Don Pedro Dams and Reservoirs. AUTHoRiTr Sec. 7, 58 Stat. 890; 33 U.S.C. 709. § 208.10 Local flood protection works; maintenance and operation of structures and facilities. (a) General. (1) The structures and fa- cilities constructed by the United States for local flood protection shall be continuously maintained in such a manner and operated at such times and Corps of Engineers, Dept. of the Army, DoD for such periods as may be necessary to obtain the maximum benefits. (2) The State, political subdivision thereof, or other responsible local agency, which furnished assurance that it will maintain and operate flood con- trol works in accordance with regula- tions prescribed by the Secretary of the Army, as required by law, shall ap- point a permanent committee consist- ing of or headed by an official herein- after called the "Superintendent," who shall be responsible for the develop- ment and maintenance of, and directly in charge of, an organization respon- sible for the efficient operation and maintenance of all of the structures and facilities during flood periods and for continuous inspection and mainte- nance of the project works during peri- ods of low water, all without cost to the United States. (3) A reserve supply of materials needed during a flood emergency shall be kept on hand at all times. (4) No encroachment or trespass which' will adversely affect the effi- cient operation or maintenance of the project works shall be permitted upon the rights -of -way for the protective fa- cilities. (5) No improvement shall be passed over, under, or through the walls, lev- ees, improved channels or floodways, nor shall any excavation or construc- tion be permitted within the limits of the project right-of-way, nor shall any change be made in any feature of the works without prior determination by the District Engineer of the Depart- ment of the Army or his authorized representative that such improvement, excavation, construction, or alteration will not adversely affect the function- ing of the protective facilities. Such improvements or alterations as may be found to be desirable and permissible under the above determination shall be constructed in accordance with stand- ard engineering practice. Advice re- garding the effect of proposed improve- ments or alterations on the function- ing of the project and information con- cerning methods of construction ac- ceptable under standard engineering practice shall be obtained from the District Engineer or, if otherwise ob- tained, shall be submitted for his ap- proval. Drawings or prints showing 97 § 208.10 such improvements or alterations as fi- nally constructed shall be furnished the District Engineer after completion of the work. (6) It shall be the duty of the super- intendent to submit a semiannual re- port to the District Engineer covering inspection, maintenance, and operation of the protective works. (7) The District Engineer or his au- thorized representatives shall have ac- cess at all times to all portions of the protective works. (8) Maintenance measures or repairs which the District Engineer deems nec- essary shall be promptly taken or made. (9) Appropriate measures shall be taken by. local authorities to insure that the activities of all local organiza- tions operating public or private facili- ties connected with the protective works are coordinated with those of the Superintendent's organization dur- ing flood periods. (10) The Department of the Army will furnish local interests with an Oper- ation and Maintenance Manual for each completed project, or separate useful part thereof, to assist them in carrying out their obligations under this part. (b) Levees —(I) Maintenance. The Su- perintendent shall provide at all times such maintenance as may be required to insure serviceability of the struc- tures in time of flood. Measures shall be taken to promote the growth of sod, exterminate burrowing animals, and to provide for routine mowing of the grass and weeds, removal of wild growth and drift deposits, and repair of damage caused by erosion or other forces. Where practicable, measures shall be taken to retard bank erosion by plant- ing of willows or other suitable growth on areas riverward of the levees. Peri- odic inspections shall be made by the Superintendent to insure that the above maintenance measures are being effectively carried out and, further, to be certain that: (i) No unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; (ii) No caving has occurred on either the land side or the river side of the levee which might affect the stability of the levee section; § 208.10 (iii) No seepage, saturated areas, or sand boils are occurring; (iv) Toe drainage systems and pres- sure relief wells are in -good working condition, and that such facilities are. not becoming clogged; (v) Drains through the levees and gates on said drains are in good work- ing condition; (vi) No revetment work or riprap has been displaced, washed out, or re- moved; (vii) No action is being taken, such as burning grass and weeds during inap- propriate seasons, which will retard or destroy the growth of sod; (viii) Access roads to and on the levee are being properly maintained; (ix) Cattle guards and gates are in good condition; (x) Crown of levee is shaped so as to drain readily, and roadway thereon, if any, is well shaped and maintained; (xi) There is no unauthorized grazing or vehicular traffic on the levees; (xii) Encroachments are not being made on the levee right-of-way which might endanger the structure or hinder its proper and efficient functioning during times of emergency. Such inspections shall be made imme- diately prior to the beginning of the flood season; immediately following each major high water period, and oth- erwise at intervals not exceeding 90 days, and such intermediate times as may be necessary to insure the best possible care of the levee. Immediate. steps will be taken to correct dan- gerous conditions disclosed by such in- spections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. (2) Operation. During flood periods the levee shall be patrolled continu- ously to locate possible sand boils or unusual wetness of the landward slope and to be certain that: (i) There are no indications of slides or sloughs developing; (ii) Wave wash or scouring action is not occurring; (iii) No low reaches of leave exist which may be overtopped; (iv) No other conditions exist which might endanger the structure. Appropriate advance measures will be taken to insure the availability of ade- 33 CFR Ch. II (7-1-98 Edition) quate labor and materials to meet all contingencies. Immediate steps will be taken to control any condition which endangers the levee and to repair the damaged section. (c) Flood walls —(I) Maintenance. Peri- odic inspections shall be made by the Superintendent to be certain that: (i) No seepage, saturated areas, or sand boils are occurring; (ii) No undue settlement has occurred which affects the stability of the wall or its water tightness; (iii) No trees exist, the roots of which might extend under the wall and offer accelerated seepage paths; (iv) The concrete has not undergone cracking, chipping, or breaking to an extent which might affect the stability of the wall or its water tightness: (v) There are no encroachments upon the right-of-way which might endanger the structure or hinder its functioning in time of flood; (vi) Care is being exercised to prevent accumulation of trash and debris adja- cent to walls, and to insure that no fires are being built near them; (vii) No bank caving conditions exist riverward of the wall which might en- danger its stability; (viii) Toe drainage systems and pres- sure relief wells are in good working condition, and that such facilities are not becoming clogged. Such inspections shall be made imme- diately prior to the beginning of the flood season, immediately following each major high water period, and oth- erwise at intervals not exceeding 90 days. Measures to eliminate encroach- ments and effect repairs found nec- essary by such inspections shall be un- dertaken immediately. All repairs shall be accomplished by methods ac- ceptable in standard engineering prac- tice. (2) Operation. Continuous patrol of the wall shall be maintained during flood periods to locate possible leakage at monolith joints or seepage under- neath the wall. Floating plant or boats will not be allowed to lie against or tie up to the wall. Should it become nec- essary during a flood emergency to pass anchor cables over the wall, ade- quate measures shall be taken to pro- tect the concrete and construction joints. Immediate steps shall be taken 98 Corps of Engineers, Dept. of the Army, DoD to correct any condition which endan- gers the stability of the wall. (d) Drainage structures—(1) Mainte- nance. Adequate measures shall be taken to insure that inlet and outlet channels are kept open and that trash, drift, or debris is not allowed to accu- mulate near drainage structures. Flap gates and manually operated gates and valves on drainage structures shall be examined, oiled, and trial operated at least once every 90 days. Where drain- age structures are provided with stop log or other emergency closures, the condition of the equipment and its housing shall be inspected regularly and a trial installation of the emer- gency closure shall be made at least once each year. Periodic inspections shall be made by the Superintendent to be certain that: (i) Pipes, gates, operating mecha- nism, riprap, and headwalls are in good condition; (ii) Inlet and outlet channels are open; (iii) Care is being exercised to pre- vent the accumulation of trash and de- bris near the structures and that no fires are being built near bituminous coated pipes; (iv) Erosion is not occurring adjacent to the structure which might endanger its water tightness or stability. Immediate steps will be taken to repair damage, replace missing or broken parts, or remedy adverse conditions disclosed by such inspections. (2) Operation. Whenever high water conditions impend, all gates will be in- spected a short time before water reaches the invert of the pipe and any object which might prevent closure of the gate shall be removed. Automatic gates shall be closely observed until it has been ascertained that they are se- curely closed. Manually operated gates and valves shall be closed as necessary to prevent inflow of flood water. All drainage structures in levees shall be inspected frequently during floods to ascertain whether seepage is taking place along the lines of their contact with the embankment. Immediate steps shall be taken to correct any ad- verse condition. (e) Closure structures —(I) Mainte- nance. Closure structures for traffic openings shall be inspected by the Su- § 208.10 perintendent every 90 days to be cer- tain that: (i) No parts are missing; (ii) Metal parts are adequately cov- ered with paint; (iii) All movable parts are in satisfac- tory working order; (iv) Proper closure can be made promptly when necessary; (v) Sufficient materials are on hand for the erection of sand bag closures and that the location of such materials will be readily accessible in times of emergency. Tools and parts shall not be removed for other use. Trial erections of one or more closure structures shall be made once each year, alternating the struc- tures chosen so that each gate will be erected at least once in each 3-year pe- riod. Trial erection of all closure struc- tures shall be made whenever a change is made in key operating personnel. Where railroad operation makes trial erection of a closure structure infeasi- ble, rigorous inspection and drill of op- erating personnel may be substituted therefor. Trial erection of sand bag clo- sures is not required. Closure materials will be carefully checked prior to and following flood periods, and damaged or missing parrs shall be repaired or re- placed immediately. (2) Operation. Erection of each mov- able closure shall be started in suffi- cient time to permit completion before flood waters reach the top of the struc- ture sill. Information regarding the proper method of erecting each individ- ual closure structure, together with an estimate of the time required by an ex- perienced crew to complete its erection will be given. in the Operation and Maintenance Manual which will be fur- nished local interests upon completion of the project. Closure structures will be inspected frequently during flood periods to ascertain that no undue leakage is occurring and that drains provided to care for ordinary leakage are functioning properly. Boats or floating plant shall not be allowed to tie up to closure structures or to dis- charge passengers or cargo over them. (f) Pumping plants —(I) Maintenance. Pumping plants shall be inspected by the Superintendent at intervals not to exceed 30 days during flood seasons and 99 ,t , § 208.10 90 days during off -flood seasons to in- sure that all equipment is in order for instant use. At regular intervals, prop- er measures shall be taken to provide for cleaning plant, buildings, and equipment, repainting as necessary, and lubricating all machinery. Ade- quate supplies of lubricants for all types of machines, fuel for gasoline or diesel powered equipment, and flash lights or lanterns for emergency light- ing shall be kept on hand at all times. Telephone service shall be maintained at pumping plants. All equipment, in- cluding switch gear, transformers, mo- tors, pumps, valves, and gates shall be trial operated and checked at least once every 90 days. Megger tests of all insulation shall be made whenever wir- ing has been subjected to undue damp- ness and otherwise at intervals not to exceed one year. A record shall be kept showing the results of such tests. Wir- ing disclosed to be in an unsatisfactory condition by such tests shall be brought to a satisfactory condition or shall be promptly replaced. Diesel and gasoline engines shall be started at such intervals and allowed to run for such length of time as may be nec- essary to insure their serviceability in times of emergency. Only skilled elec- tricians and mechanics shall be em- ployed on tests and repairs. Operating personnel for the plant shall be present during tests. Any equipment removed from the station for repair or replace- ment shall be returned or replaced as soon as practicable and shall be trial operated after reinstallation. Repairs requiring removal of equipment from the plant shall be made during off -flood seasons insofar as practicable. (2) Operation. Competent operators shall be on duty at pumping plants whenever it appears that necessity for pump operation is imminent. The oper- ator shall thoroughly inspect, trial op- erate, and place in readiness all plant equipment. The operator shall be fa- miliar with the equipment manufactur- ers' instructions and drawings and with the "Operating Instructions" for each station. The equipment shall be oper- ated in accordance with the above - mentioned "Operating Instructions" and care shall be exercised that proper lubrication is being supplied all equip- ment, and that no overheating, undue 33 CFR Ch. II (7-1-98 Edition) vibration or noise is occurring. Imme- diately upon final recession of flood waters, the pumping station shall be thoroughly cleaned, pump house sumps flushed, and equipment thoroughly in- spected, oiled and greased. A record or log of pumping plant operation shall be kept for each station, a copy of which shall be furnished the District Engi- neer following each flood. (g) Channels and toodways—(1) Main- tenance. Periodic inspections of im- proved channels and floodways shall be made by the Superintendent to be cer- tain that: (i) The channel or floodway is clear of debris, weeds, and wild growth; (ii) The channel or floodway is not being restricted by the depositing of waste materials, building of unauthor- ized structures or other encroach- ments; (III) The capacity of the channel or floodway is not being reduced by the formation of shoals; (iv) Banks are not being damaged by rain or wave wash, and that no slough- ing of banks has occurred; (v) Riprap sections and deflection dikes and walls are in good condition; (vi) Approach and egress channels ad- jacent to the improved channel or floodway are sufficiently clear of ob- structions and debris to permit proper functioning of the project works. Such inspections shall be made prior to the beginning of the flood season and otherwise at intervals not to exceed 90 days. Immediate steps will be taken to remedy any adverse conditions dis- closed by such inspections. Measures will be taken by the Superintendent to promote the growth of grass on bank slopes and earth deflection dikes. The Superintendent shall provide for peri- odic repair and cleaning of debris ba- sins, check dams, and related struc- tures as may be necessary. (2) Operation. Both banks of the chan- nel shall be patrolled during periods of high water, and measures shall be taken to protect those reaches being attacked by the current or by wave wash. Appropriate measures shall be taken to prevent the formation of jams of ice or debris. Large objects which be- come lodged against the bank shall be removed. The improved channel or floodway shall be thoroughly inspected 100 Corps of Engineers, Dept. of the Army, DoD immediately following each major high water period. As soon as practicable thereafter, all snags and other debris shall be removed and all damage to banks, riprap, deflection dikes and walls, drainage outlets, or other flood control structures repaired. (h) Miscellaneous facilities—(1) Mainte- nance. Miscellaneous structures and fa- cilities constructed as a part of the protective works and other structures and facilities which function as a part of, or affect the efficient functioning of the protective works, shall be periodi- cally inspected by the Superintendent and appropriate maintenance measures taken. Damaged or unserviceable parts shall be repaired or replaced without delay. Areas used for ponding in con- nection with pumping plants or for temporary storage of interior run-off during flood periods shall not be al- lowed to become filled with silt, debris, or dumped material. The Superintend- ent shall take proper steps to prevent restriction of bridge openings and, where practicable, shall provide for temporary raising during floods of bridges which restrict channel capac- ities during high flows. (2) Operation. Miscellaneous facilities shall be operated to prevent or reduce flooding during periods of high water. Those facilities constructed as a part of the protective works shall not be used for purposes other than flood pro- tection without approval of the Dis- trict Engineer unless designed therefor. (Sec. 3, 49 Scat. 1571, as amended; 33 U.S.C. 701c) (9 FR 9999, Aug. 17. 1944; 9 FR 10203, Aug. 22, 19441 § 208.11 Regulations for use of storage allocated for flood control or navi- gation and/or project operation at reservoirs subject to prescription of rules and regulations by the Sec- retary of the Army in the interest of flood control and navigation. (a) Purpose. This regulation pre- scribes the responsibilities and general procedures for regulating reservoir projects capable of regulation for flood control or navigation and the use of storage allocated for such purposes and provided on the basis of flood control and navigation, except projects owned and operated by the Corps of Engi- § 208.11 neers; the International Boundary and Water Commission, United States and Mexico; and those under the jurisdic- tion of the International Joint Com- mission, United States, and Canada, and the Columbia River Treaty. The in- tent of this regulation is to establish an understanding between project own- ers, operating agencies, and the Corps of Engineers. (b) Responsibilities. The basic respon- sibilities of the Corps of Engineers re- garding project operation are set out in the cited authority and described in the following paragraphs: (1) Section 7 of the Flood Control Act of 1944 (58 Stat. 890, 33 U.S.C. 709) di- rects the Secretary of the Army to pre- scribe regulations for flood control and navigation in the following manner: Hereafter, it shall be the duty of the Sec- retary of War to prescribe regulations for the use of storage allocated for flood control or navigation at all reservoirs constructed wholly or in part with Federal funds pro- vided on the basis of such purposes, and the operation of any such project shall be in ac- cordance with such regulations: Provided, That this section shall not apply to the Ten- nessee Valley Authority. except that in case of danger from floods on the lower Ohio and Mississippi Rivers the Tennessee Valley Au- thority is directed to regulate the release of water from the Tennessee River into the Ohio River in accordance with such instruc- tions as may be issued by the War Depart- ment. (2) Section 9 of Public Law 436-83d Congress (68 Stat. 303) provides for the development of the Coosa River, Ala- bama and Georgia, and directs the Sec- retary of the Army to prescribe rules and regulations for project operation in the interest of flood control and navi- gation as follows: The operation and maintenance of the dams shall be subject to reasonable rules and regulations of the Secretary of the Army in the interest of flood control and navigation. NOTE: This Regulation will also be applica- ble to dam and reservoir projects operated under provisions of future legislative acts wherein the Secretary of the Army is di- rected to prescribe rules and regulations in the interest of flood control and navigation. The Chief of Engineers, U.S. Army Corps of Engineers, is designated the duty authorized representative of the Secretary of the Army 101 WEST ®r CONSULTANTS, INC. Water • Environmental • Sedimentation • Technology Hydraulics • Hydrology • Sedimentation • Water Quality • Erosion Control • Environmental Services CEDAR RIVER, WASFHNGTON OPERATIONS AND MAINTENANCE MANUAL HYDROLOGY AND HYDRAULICS INFORMATION FINAL REPORT Prepared for: U.S. Army Corps of Engineers Seattle District P.O. Box 3755 Seattle, WA 98124-2255 Prepared by: WEST Consultants, Inc. 12509 Bel -Red Road, Suite 100 Bellevue, WA 98005 (425) 646-8806 August 13`h, 1999 TABLE OF CONTENTS SECTION 1. INTRODUCTION........................................................................ I 1.1 Background.................................................................................................1 1.2 Scope of Work............................................................................................. I SECTION 2. MONITORING SEDIMENT DEPOSITION ............................ 2 2.1 Purpose....................................................................................................... , 2.2 Cross -Section Locations............................................................................. 2.3 Survey Points.............................................................................................. 4 2.4 Survey Timing ' _.5 Abbreviated Survevs................................................................................... 6 SECTION 3. TIMING OF MAINTENANCE DREDGING ........................... i 3.1 Purpose.......................................................................................................7 3.2 HEC-RAS Model Development................................................................... 7 3.3 Estimating Bed Elevation Changes at a Cross -Section .............................. 8 3.4 Timing of Dredging.................................................................................. 11 SECTION 4. RAISING OF THE SOUTH BOEING BRIDGE ...................13 4.1 General.....................................................................................................13 4.2 Action Flow Level..................................................................................... 13 4.3 Flood Warning System.............................................................................. 14 4.4 Monitoring Flood Flows........................................................................... 14 4.5 Raising South Boeing Bridge Sequence .................................................... 1 27 SECTION5. REFERENCES..........................................................................17 LIST OF FIGURES Figure 1. Historic location of cross -sections (NHC, 1992)................................... 3 Figure 2. Example of change in cross -sectional geometry .................................... 8 Figure 3. Estimate of forecasted cross-section geometry ....................................10 Figure 4. Example of determining when to dredge ............................................. 11 Figure 5. Example of surveying and dredging cycle ........................................... 12 Figure 6. Example of a rating curve at the South Boeing Bridge .......................13 LIST OF TABLES Table 1. NGVD reference marks on the Cedar River (NHC, 1992) .................... 4 Table 2. Mean Monthly Flow and Volume at the USGS Renton Gage (King County, 1993)........................................................................................ 6 Table 3. Cedar River flow at each warning phase ............................................. 14 Table 4. Sequence of action items for raising the South Boeing Bridge ........... 15 SECTION 1. Introduction 1.1 Background The Seattle District, U.S. Army Corps of Engineers (USACE), contracted WEST Consultants, Inc., to provide hydrologic and hydraulic engineering input to an Operations and Maintenance (O&M) manual to be developed by the USACE for the Cedar River, at Renton, WA, Section 205 Flood Control Project. Services were contracted under Delivery Order No. 7 of Contract #DACW67-97-D-1016. 1.2 Scope of Work Specific tasks to be performed by WEST Consultants, Inc., are listed below and detailed in the following sections. • Develop methodology to periodically monitor sediment deposition in the reach of the river between the North Boeing Bridge and the Williams Avenue Bridge crossings (SECTION 2). • Develop a methodology which will be used to determine thresholds when maintenance dredging of the project reach is required to ensure channel capacity is provided for the authorized level of protection (100-year return period flood). It is desired to have a year lead- time for the permitting process (SECTION 3). • Develop a methodology which will monitor flood flows and determine when to begin procedures to raise the South Boeing bridge structure, thus preventing flow impingement and ensuring channel capacity to provide the authorized level of protection (SECTION 4). SECTION 2. Monitoring Sediment Deposition 2.1 PUCgOSe The local sponsor (City of Renton) will be responsible for periodic monitoring of sediment deposition in the dredged reach of the Cedar River between the North Boeing Bridge upstream to Williams Avenue and determination of when maintenance dredging should occur. This section details the methods for surveying river cross -sections and monitoring sedimentation rates. The cross-section data will be used to determine the change in area at each cross-section and forecast an estimated average channel bed elevation for the future. As discussed in SECTION 3, the estimated future channel bed elevation will then be used to evaluate the available and future level of flood protection and the requirement for dredging. 2.2 Cross -Section Locations Historically, cross -sections have been surveyed at the locations shown in Figure 1. The survey of cross -sections at identical locations will facilitate long-term trend analysis. The change in cross - sectional area at these locations has already been estimated for two periods, from 1985 to 1991, and 1991 to 1997 (NHC, 1998). Cross -sections within the project area from the mouth of the Cedar River upstream to the Williams Avenue Bridge (NHC cross-section numbers 0.1 to 6502) should be surveyed in order to monitor the effects of dredging. The cross-section data are required for hydraulic analysis to determine the available and future level of flood protection (see SECTION 3). Cross -sections should be surveyed in a consistent manner in order to facilitate the process of comparing cross -sections over time. Appropriate survey data will be collected to allow permanent reference marks to be established on both the left and right banks to assist in ensuring that the cross-section alignment will be the same between subsequent surveys. This will also simplify the process of calculating the change in area at each cross-section. The location of these reference marks should be prominently marked and identified relative to easily recognizable landmarks so that they can be found quickly at the time of each survey. There are relatively few bridges in the project reach but there should be enough cross -sections at each bridge to define the hydraulic processes. Cross -sections are typically required at the upstream and downstream bridge facings, and at a distance both upstream and downstream from -2- Figure 1. Historic location of cross -sections (NHC, 1992) NHC USCOE Cross -Section Cross -Section Number Number 140 955 1665 2585 3460 3975 4037 4192 4732 5332 5644 6012 6502 6681 6931 7103 7483 7653 7845 8092 8402 8476 8596 8836 9446 10236 1A WET 0.63 8.62 16.12 .i i�%� "� y �► 25.32 33.82�.. 39.01 CatcuThcatcr 41.14 '" ..-� —ter '� �' r 46.54 % s `,s ue` _ . • , "��— I t "Mir- �- 52.44 56.43 I �� rR, Q5-TU M PDX 11:60.12 Ft a. t 65.01 66.81 _ r "�ikC i� �y .1k, 69.31 t' y b aTiL IL'WP.' A 71.03 ...n'± tV. Ll'' fR�L1tJ1 t1Zttfil a F+ T io r R1.4 NHC I i Houser Wa pp City Hall �'r1,w 74.83 fAf Jkjj� (! iiil •t'%#. L`� f1k 1� 1 ►t. �,,� or 78.44 ' , : 2n vo r *- �i UQ'!J tlrY'lit,, L � t , 80.92 (. { =' s ,1QitL�so� Wells Ave. Z7 . a Er 84.01 Will .... i 84.38 Seuiur Cchtic r c{� ��►_.?� `' 85.96 �..�..�..�.- .s �.� ..` t r F� - s . �� • �� _ a ( :a Ta t ::.,.:: 88.36 ��� • � o ' i . .� .,-, ..J .r> � RM R 462 'Yi70�"` o i • _ � • �a� 94.46 ti1.►��F }t i > t.. �? t ■ BcxinS : !�� �t t: 1 Lt :..m :1vu �+ '102.36 111.56 U 5 -,East Perimeter Rd . c\ 1 ', y 'i '? •1�u; .- T--r - — — - - - _- It It Soul Boeing o ... X R'�1 677 � ' _�• � �. ... Renton Municipal Aitlknt a ISO �Im .1 1L t4arth Boeing Bridge Nor- — - 4'Mq� q c:• — -- , Cedar River E the bridge where flow lines are approximately parallel and flow is not affected by the structure (USACE, 1998a). In the lower Cedar River, the channel is relatively uniform and the bridges typically do not encroach significantly on the channel. Therefore, the number of cross -sections at each bridge can most likely be reduced to an upstream and downstream section. This should be confirmed by a review of the cross -sections surrounding each bridge site. Additional cross - sections will need to be added at bridge locations where this is not the case. 2.3 Survey Points There are specific points in the channel that need to be surveyed to define the river geometry. These points include the thalweg, top of bank, top of levee (if different from top of bank), and any significant breaks in grade or vegetation. Points within the main channel should be surveyed at a maximum spacing of 20 feet (see SECTION 3). The cross-section end -points should extend beyond the area inundated during high flow. Every survey should be tied into a common elevation datum. The National Geodetic Vertical Datum (NGVD) has been used historically for Cedar River geometry surveys (NHC, 1992). A list of reference marks along the channel reach for this datum is shown in Table 1. In addition, a general description of the roughness characteristics (i.e. vegetation type) on the overbanks at the time of each survey should be developed. Additional details on cross-section surveying techniques are provided in FEMA, 1995. Table 1. NGVD reference marks on the Cedar River (NHC, 1992) Elevation in Feet Reference Marks (NGVD) Description and Location RM 681 21.72 A chiseled square on top of southwest corner 1-foot-high concrete curb on the northwest corner of the Boeing benchmark. RM 677 25.71 A chiseled square in the northwest comer of the northwest wingwall on the Boeing access bridge over Cedar River, 0.32 miles north of the Logan Avenue South bridge over the Cedar River. City of Renton benchmark. RM R 462 37.01 A standard disk set in top of the northwesterly corner of Logan Avenue South bridge guardrail over Cedar River. NGS benchmark. RM K 384 40.98 A standard disk set in the northeast comer of Bronson Way North bridge over Cedar River. NGS benchmark. RM NHC 1 34.18 Benchmark north of the Cedar River at the center (low point) of a storm drain grate located in a lawned area between the east side of Carco Theatre and the southwest corner of the Stoneway Concrete Company property. -4- 2.4 Survey Timing Cross -sections must be surveyed frequently enough to adequately represent the effects of sedimentation and scour on the channel over time. The local sponsor can reassess the frequency of the required channel surveys and formally request to the USACE revisions of the re -survey schedule. Surveys should be conduced during lower flows in late spring/early summer or as conditions warrant. Typically, the lower flows along the Cedar River occur from May through November. The recommended initial survey times include: ✓ Immediately after dredging of the river ✓ After the first high flow period that follows dredging ✓ Frequently enough to define channel geometry changes during "average" years ✓ After the occurrence of extreme flow events The survey conducted immediately after the river is dredged defines the initial channel geometry. The survey after the first winter high flow period following dredging is required to define a change in area at each cross-section. As discussed in SECTION 3, the change in cross-section area is used to forecast expected future cross-section shape. Cross -sections also need to be surveyed frequently enough to define changes in channel geometry over a series of succeeding "average" years. An "average" year can be defined as when the sediment load, sedimentation rate, and scour potential are relatively the same from year to year. Initially, these surveys should be done every year to establish typical changes in bed elevations. Abbreviated surveys can be used to verify any established trends and revise the frequency of future surveying if necessary (see "2.5 Abbreviated Surveys"). An example of the relation between survey timing and determining when to dredge is discussed in SECTION 3. Extreme flood events will occur that vary considerably from "average" conditions. Initially, surveying should be done anytime a 2-year (50% probability of exceedance), greater flood event occurs, or if the flow volumes for individual months, the flood season, or water year are significantly larger than normal. The average runoff volume for the Cedar River at Renton for the period 1962 through 1989 (King County, 1993) is shown in Table 2. A high volume runoff year could potentially carry a large sediment load. In either case, a channel survey should be made during the following low flow period to assess changes to channel geometry. -5- Table 2. Mean Monthly Flow and Volume at the USGS Renton Gage (King County, 1993) Month Flow cfs Volume acre ft Jan 1,118 68,700 Feb 1,002 55,600 Mar 846 52,000 Apr 739 44,000 May 694 42.700 Jun 609 36,200 Jul 266 16,400 Aug 183 11,300 Sep 236 14,000 Oct 335 20.600 Nov 610 36,300 Dec 1,020 62,700 Mean Annual 638 38,300 The 2-year event was selected as an initial threshold for conducting flood event specific surveys because it is typically defined as the smallest event that can cause significant changes to channel morphology. This threshold may be adjusted if experience indicates that only less frequent flood events cause significant channel change. When assessing the requirement for a flood event specific survey, is should be noted that the impact of a particular event may vary depending on its timing relative to the most recent dredging. In general, extreme events cannot be predicted. A situation may arise where an extreme event changes the channel geometry such that dredging is required for the high flow period the following year. Surveying should therefore be conducted as soon as possible after an extreme event, commensurate with personnel safety and data accuracy, to maximize the amount of time available to obtain required permits. 2.5 Abbreviated Survevs Abbreviated surveys can be conducted to confirm estimates and assumptions made from prior cross -sectional area surveys or to determine if more detailed surveys are warranted. For example, an abbreviated survey could be conducted following an extreme flood event to verify the need for a detailed survey or after an "average" flow season to confirm the expected change in channel bed elevations. Abbreviated surveys would include only select channel cross -sections and a limited number of cross-section points. The specific number of cross -sections and cross-section points included in an abbreviated survey must adequately indicate changes in bed elevation through the project reach. 9M. SECTION 3. Timing of Maintenance Dredging 3.1 Purpose As part of the Section 205 flood control project, the Cedar River will be periodically dredged to reestablish and maintain design conveyance through the City of Renton and decrease the potential for flooding (USACE, 1997). The following methodology is recommended to determine when dredging should occur to maintain the authorized level of flood protection (100-year). The methodology requires that the level of flood protection be assessed based on the results of a numerical hydraulic model of the Cedar River. The hydraulic model, HEC-RAS (USACE, 1998b), will be developed based on surveyed channel geometry and predicted changes in bed elevation. The model will be periodically updated with the re -surveyed cross sections and run by the local sponsor to predict the expected level of flood protection in the future after the re -survey. An estimate of future flood protection level one-year subsequent to each periodic survey is required to facilitate the dredging permit process. 3.2 HEC-RAS Model Development The HEC-RAS model will be used to evaluate the available or expected level of flood protection (100-year return period flood) in the project reach. Analyses will be made using the channel geometry defined from the most recent cross-section survey data, in addition to the channel geometry revised with the most recent realistic estimation of change in bed elevation. The initial HEC-RAS model roughness coefficients should be calibrated to available high water mark data and periodically reviewed and updated. The initial data should be obtained at the cross sections in the model during the first high water period following the surveys. Analysis should be conducted immediately after the surveys in order to provide the greatest amount of lead-time for any required dredging. Analyses from the HEC-RAS model will kept on file by the local sponsor. A summary report will be provided to the Seattle District Army Corps of Engineers each time a new survey is conducted and will include: ✓ Graphs of the most recent surveyed channel geometry ✓ Estimates of change in bed elevation at each cross-section ✓ Methods for developing and calibrating the HEC-RAS model ✓ The rating curve to be used for determining when to raise the South Boeing Bridge ✓ Recommendations for the need to dredge -7- 3.3 Estimating Bed Elevation Changes at a Cross -Section Rates of change in bed elevation are required to forecast future cross-section geometry. A method for estimating these rates using observed changes in cross-section area is discussed by way of an example. Figure 2 shows cross -sections at USCOE river station 16.12 for October 1998, after the river had been dredged during that summer, and in January 1999, three months later. Calculating the change in cross-section area between subsequent surveys can approximate the rate of bed elevation change at this cross-section. This rate of change can then be extrapolated to the desired period in time to approximate the revised channel geometry. This change in cross - sectional area can be calculated easily by planimeter or in conjunction with a CAD software package. Figure 2. Example of change in cross -sectional geometry 30 25 20 c � t5 i u w 10 5 0 -50 Cedar River Cross -Section at USCOE River Station 16.12 — a — Oct'98 (RS 16.12) ---*--Jan '99 (Sta. 15+81) I i i l I i I I � j _ I I I i I I 0 50 100 150 200 DIMance (ft) -8- Because the two cross -sections did not align exactly, best judgement was used to 1) align bank stations and 2) determine the actual cross -sectional area that is undergoing change. For example, in Figure 2, it may be appropriate to consider only the change in area between stations at 28 and 161 feet, as the difference in bank elevations may not be due to actual changes in the channel but rather to how the survey was conducted. It is noted that the January 1999 survey was performed during a high flow period and it was probably difficult to survey. Because the bank stations of the different surveys do not line up exactly the cross -sections in the figure above were aligned by eye. The difference in the banks station locations may be due to slightly different alignments across the river. Establishing permanent reference points (see SECTION 2) at each cross-section would help to alleviate this issue. In addition, note that inclusion of more cross-section points along the bottom of the channel would give more resolution to the channel shape and would provide a more accurate estimate of change in the cross-section. Erosion and deposition rates are expected to decrease as the channel stabilizes. Therefore, the calculated change in channel area will probably be high when initially extrapolated into the future. Best judgement may be needed if an unrealistic change in area is computed. A check can be made against the rates estimated over two approximate six year periods, 1985 to 1991, and 1991 to 1997 (NHC, 1998). Once the estimate of cross -sectional area change is made, the change in area is divided by the width of the affected channel and then divided by the time between the two surveys. days = [(A2 — A,)/ w] At Where: davg Average change in cross-section depth over time A 1, A2 Area below surveyed channel points for the I" and 2"d surveys, respectively, to an arbitrary depth w Affected channel width At Period of time between the 15` and 2"d surveys This results in an estimate of average change in depth over time. This rate is then multiplied by the period from the most recent survey to the forecast period. This depth should then be added (for aggradation) or subtracted (for degradation) at each cross-section point (Figure 3). Figure 3. Estimate of forecasted cross-section geometry Cedar River Forecasted Cross -Section Geometry at USCOE River Station 16.12 30 25 20 c 0 5 m a u w 10 5 0 . -50 0 50 100 150 200 Distance (ft) Best judgement should be used when forecasting cross-section shape in this manner. Adding an average depth to each survey point in the main channel may not be appropriate depending on the surveyed cross-section geometry. Accordingly, each cross-section should be assessed individually. For example, if a point within the main channel is estimated to be higher than either top of bank, consideration should be given to limiting the modified elevation to the top of bank height. -10- 3.4 Timingr of Dredging The HEC-RAS hydraulic model can be used to assess the current and future flooding potential once the estimates of aggradation or degradation at each cross-section have been developed. This is accomplished by executing a series of successive simulations with the model. Figure 4 and the following text gives an example of the specific analysis steps. "Typical high flow" periods are the months with the greatest observed mean flow. It is assumed that this is the time of the most significant flooding, sedimentation, and scour. The months and times listed are approximate. Assume that a survey was conducted at both Time A (e.g., after dredging) and at Time B. Figure 4. Example of determining when to dredge Typical High Flow Period 1 Typical High Flo* Perod 2 Typical High Flow Period 3 Typical Kgh Flo. Period 4 Monm. A S 1 N D J F M A M A JIB S O N D J F M A M A S O N D F M M J A S O N D J F 11 A Tme. A 110 Step 1. Assess current conditions. Run HEC-RAS using the most recent survey data (from Time B) and a 100-Year flow event. Is the required level of protection provided? ✓ If no, initiate permitting process immediately for dredging prior to the following high flow period (High Flow Period 2). ✓ If yes, proceed to Step 2. Step 2. Assess future conditions. Estimate the aggradation or degradation rate at each cross-section using the most recent survey data (surveys at Time A and B) and extrapolate channel conditions to a time after the next high flow period when the high flows typically recede (e.g., end of April). Evaluate available flood protection using HEC-RAS and the forecasted channel geometry. Is the level of protection adequate for the forecasted period (the end of High Flow Period 2)? ✓ If no, initiate the permit process immediately in order to dredge prior to that high flow period. ✓ If yes, proceed to Step 3. Step 3. Estimate aggradation and degradation for the next high flow period (High Flow Period 3), and each high flow period thereafter, until the required 100-year level of protection is no longer met. Dredging should then be planned to occur in the low flow period prior to when the level of protection is no longer provided. -11- Using this same example, Figure 5 shows the timing relation between dredging, surveying, and starting the permit process. Assume that these are a series of "average" years and that the channel was dredged and a survey conducted at Time A. Another survey was made at Time B. An estimate of the forecasted change in area at each cross-section was then made based on the rate of observed changes between Time A and Time B. Based on an HEC-RAS analysis, the required level of protection is expected to be available up to, but not including, High Flow Period 4. In order to provide a year lead-time, the permit process for dredging would need to start the year before (e.g., at Time C for dredging to occur at Time E). To confirm the need for dredging, and to assess trends during "average" years, a new survey is conducted during the low flow period prior to High Flow Period 4 (at Time D). The hydraulic analysis is then re-evaluated using the most recent survey and aggradation and degradation rates based on the period from Time B to Time D. Figure 5. Example of surveying and dredging cycle Typical High Flow Period 1 Typical High %w Period 2 Typical High Flow Period 3 Typical H ,n Fw Period 4 Month: A I S 10 N D J J Tine: A B C I I 1 D E If it is shown that based on this new analysis that the level of protection is provided for High Flow Period 4, then the planned dredging can be reevaluated. The cycle then begins anew with an estimation of the next high flow period when the level of protection is not provided. If the new survey shows that the level of protection is not provided and that dredging is still required, then the permit process was started the previous year and dredging can therefore occur. In a series of prolonged "average" years, the frequency of surveys may be reduced if, from the data observed over time, it can be concluded that the rates of change at each cross-section are fully understood and provide an adequate estimate of change in cross -sectional area. The example assumes that a series of "average" years occurs in succession. If an extreme event had occurred, additional surveying would need to be conducted. For example, if a 50-year event occurred in High Flow Period 3, the survey conducted at Time D would ensure that the required level of flood protection is provided for High Flow Period 4. The analysis process would then start again using aggradation and degradation rates between surveys at Time B and Time D. -12- SECTION 4. Raising of the South Boeing Bridge 4.1 General As a result of the Cedar River Flood Control project, and the construction of floodwalls and levees, the South Boeing Bridge impedes flow during high discharges causing a backwater effect upstream. To alleviate this effect, the bridge has been retrofitted so that it can be raised during times of flooding. Boeing personnel need approximately three hours, after being notified, to complete their internal process for raising the bridge. It is desired to minimize the duration that the bridge will be in the raised position. 4.2 Action Flow Level The South Boeing Bridge must be raised prior to flow impinging upon it. Using the HEC-RAS model, the forecast channel geometry for the relevant high flow period (SECTION 3) and a range of discharges, an updated rating curve will be developed for the South Boeing Bridge (Figure 6). The river discharge that will impinge on the low chord of the bridge can thus be determined. Figure 6. Example of a rating curve at the South Boeing Bridge _ ❑ nX File Options Help River: ' Reach: Lower - RiverSta.: - F4a Example of a Rating Curve for Flow at Renton Gage Upstream End of South Boeing Bridge Impinging Flow Elevation I;2 (c a� w I� c I. -o 1= I E-' I Q Total (cfs) J Legend —a— WElev JI -13- 4.3 Flood Warning Svstem During periods of potential flooding, King County operates its Flood Warning Center 24 hours a day (King County, 1999). The Center issues warnings in four -phases based on flows at the Landsburg USGS gage (station 12117500). The Landsburg gage is located downstream of both the regulated Chester Morse Lake and Cedar Lake at approximately River Mile 32.0 (USGS, 1994). A USGS gage is also located within the City of Renton (station 12119000), 125 feet downstream from the bridge on Bronson Way North, at approximately River Mile 1.6. The King County flood warnings range from Phase 1, an internal County alert, to Phase 4, where residential areas may be experiencing dangerous high flows and flooding (Table 3) (King County, 1999). The warning phases are issued locally to police and fire departments, schools, other agencies, news media, and volunteer telephone trees. Table 3. Cedar River flow at each warning phase King County Flood Phase Flow at Landsburg gage (cfs) Description 1 1,000 Internal Alert 2 2,800 Minor Flooding 3 3,500 Moderate Flooding 4 4,200 Extreme Flooding 4.4 Monitoring Flood Flows Flood flows can be monitored at Landsburg to estimate the expected flow and rate of change in discharge at the South Boeing Bridge and provide the lead-time required for raising the bridge. The travel time between the Landsburg (upstream) and Renton (downstream) has been estimated through simulation to be about 5 hours (King County, 1993). Flows above 5,000 cfs typically show a good correlation between Landsburg and Renton and little attenuation (approximately 450 cfs) is seen in the magnitude of the peaks. There have been occurrences however, where the travel time of the flood peak between Landsburg and Renton is less than three hours or local inflow between the two gages is greater than 1,000 cfs (Harvey, 1999). Under these circumstances, the Landsburg gage may not provide the required three-hour lead-time nor a reasonable indicator of discharge at the bridge. -14- Observations of stage and discharge at the Renton gage should be used to monitor differences in flow between the Landsburg and Renton gages. However, discharge estimates at the Renton gage should be used cautiously as prior dredging could affect the stage -discharge relationship and therefore the accuracy of reported flows. If significant differences are observed between Landsburg discharge and expected flows at the Renton gage, City personnel should conduct visual monitoring of stage at the South Boeing Bridge. Real-time data is available for both gages online at <http://wa.water.usgs.gov/realtime /rt_latest_data.html> or <http://www.nws.usace.army.mil/hh/basins/rivers.htm> as well as hourly updated recorded information at the King County Flood Warning Center via the telephone at (206) 296-8200 or (800) 945-9263. It is recognized that unusual hydrologic conditions may occur or advance notice of potential flood conditions may not be received. If Boeing personnel note that flow is close to impinging on the South Boeing Bridge (within 6 to 9 inches of the low flange elevation on the bridge) and they have not received notification to raise the bridge they should contact the City of Renton for direction. An updated contact list of City of Renton and Boeing personnel will be included in an Annual Report written by the project sponsor and provided to the Seattle District USACE. The bridge should be raised if contact with the City cannot be made. 4.5 Raising South Boeing Bridge Sequence The King County Flood Warning Center, in combination with flow monitoring during select times by the City of Renton, will be utilized to notify Boeing personnel when the South Boeing Bridge will need to be raised. The sequence of events is shown in Table 4. Table 4. Sequence of action items for raising the South Boeing Bridge King County Sequence Flood Phase Action 1 1 None 2 2 King County notifies Boeing and the City of Renton. Boeing begins preparation for raising the South Boeing Bridge. 3 3 and 4 City of Renton monitors flow at Landsburg and Renton and notifies Boeing personnel when the bridge should be raised. The updated contact list of Boeing personnel will be included in an Annual Report written by the project sponsor. -15- Table 4 (continued). Sequence of action items for raising the South Boeing Bridge Sequence King County Flood Phase Action 4 N/A Boeing raises the bridge South Boeing Bridge. Operation procedures for the lift machinery at the South Boeing Bridge are detailed in Hamilton Engineering, 1998. N/A South Boeing Bridge is elevated and kept in the raised position until flood flows recede appropriately below the hydraulic capacity of the bridge as decided by the City of Renton. Boeing should test the raising mechanism and procedures for lifting the South Boeing Bridge at least twice a year. Tests should be conducted both after and immediately before the flood season. The test after the flood season is intended to allow sufficient lead-time for any repairs or modifications to procedures or bridge raising mechanisms before the following flood season. The City of Renton and USACE shall be advised significantly in advance of the tests and permitted to observe the testing process. -16- SECTION 5. References FEMA (Federal Emergency Management Agency), Flood Insurance Study Guidelines and Specifications for Study Contractors, Washington D.C., September 1995. Hamilton Engineering, Inc.,, Boeing_ Renton South Bridge Lift Machinery Operation and Maintenance Manual, Seattle, WA, December 1998. Harvey, Daniel R., Personal E-mail to Jim Lencioni, US Army Corps of Engineers, Seattle District, July 7, 1999. King County, Current and Future Conditions Report. Cedar River, Land and Water Resources Division, Seattle, WA, 1993. King County, King County Flood Warning Svstem, <http://splash.metrokc.gov /wlr/flood/flood.htnv, Land and Water Resources Division, Seattle, WA, June 1999. NHC (Northwest Hydraulic Consultants), Lower Cedar River HEC-2 Model and Evaluation of Flood Relief Alternatives, Prepared for the City of Renton, WA, February 1992. NHC (Northwest Hydraulic Consultants), Cedar River Survey Data, Prepared for the City of Renton, WA, November 1998. USACE (US Army Corps of Engineers), Flood Damage Reduction Study, Cedar River Section 205, Renton, WA, Final Detailed Project Report and Environmental Impact Statement, Seattle District, WA, 1997. ---, HEC-RAS River Analysis System. Hydraulic Reference Manual. Version 2.2, Hydrologic Engineering Center, Davis, CA, 1998a. ---, HEC-RAS River Analysis System, User's Manual. Version 2.2, Hydrologic Engineering Center, Davis, CA, 1998b. USGS (U.S. Geological Survey), Water Resources Data. Washington, Water Year 1994, Water - Data Report WA-94-1, Tacoma, WA, 1994. -17- a MEMORANDUM northwest hydraulic consultants inc. 16300 christensen road, suite 350 seattle, washington 98188-3418 (206) 241-6000 fax no. (206) 439-2420 DATE: October 24, 2001 TO: Distribution List FROM: Erik Rowland SUBJECT: Lower Cedar River Flood Information for Water Year 2001 - 2002 Traditionally, the City of Renton Surface Water Utility develops an annual hydraulic rating curve for the South Boeing Bridge as part of the Cedar River Section 205 Flood Control Project. This year, the city has requested that Northwest Hydraulic Consultants, inc. (nhc) develop this rating curve as a part of the 2001 Annual Sediment Surveys. A hydraulic rating curve represents a plot of flood stage versus flood discharge occurring at a specific location given the current channel geometry. Variation in channel geometry over time can significantly skew or shift the empirical relationship between stage and discharge at a given site. This shifting or skewing of the curve may cause erroneous predictions of stage based on measured discharge or vice versa. For this reason, it is essential to provide an updated rating curve at the South Boeing Bridge so that flood stage can be predicted with an increased level of certainty, helping ensure the safety of the structure. The rating curve developed for the South Boeing Bridge references the flood stage at the bridge to the discharge measured at United States Geological Survey (USGS) gage 12117500 located at Landsburg. Using this relationship and "real time" streamflow data corresponding to the Landsburg gage, key personnel can be notified of the optimum time to begin lift operations and secure closure gates at the bridge. In accordance with the format of last years memorandum regarding the development of the South Boeing Bridge rating curve, two procedures are outlined to predict the optimum time to begin lift and gate closure operations at the bridge. The first method utilizes the rating curve discussed previously, while the second focuses on Flood Phase information obtainable from the King County Flood Information Center. Method 1 — Rating Curve 1. Contact the King County Flood Warning Center to obtain "real-time" streamflow data at USGS gage 12117500 (Landsburg). See Attachment 1, at the back of this memo, for a listing of King County phone numbers where flood information may be obtained. 2. Using the current discharge at the Landsburg gage obtained in Step 1 and the rating curve provided in Figure 1, read the corresponding flood stage at the South Boeing Bridge. 3. If the flood stage, estimated in Step 2 above, is equal to or greater than 20.8 ft NGVD (i.e. 20.8 ft NGVD corresponds to a flow of 6,600 cfs at Landsburg), begin lift and gate closure operations at the bridge (20.8 ft is 1-ft lower than the low chord of the South Boeing Bridge). The estimated lag time between the Landsburg and Renton gages is approximately four hours, meaning that from the Landsburg gage it takes approximately four hours for the same flood waters to reach the Renton gage. This establishes a four- hour window for crews to complete the lift and gate closure operations at the South Boeing Bridge. Method 2 — King County Flood Phase Information Table 1 lists the current King County Flood Phase Information for the Cedar River System. See Attachment 1 for a listing of King County phone numbers to contact regarding this information. 2. If Flood Phase 3 (discharge greater than 3,500 cfs at Landsburg) has been declared and flows are predicted to increase, Boeing staff and officials are to be alerted that the South Boeing Bridge may need to be raised in the near future. 3. If Flood Phase 4 (discharge greater than 4,800 cfs at Landsburg) has been declared, operations to lift the bridge should begin. For informational purposes, Table 2 lists the flood frequency instantaneous peak discharges at both the Landsburg and Renton gaging stations, the corresponding stage at the South Boeing Bridge, as well as the Flood Phase. Summary The purpose of this memorandum is to provide the City of Renton and other flood protection partners with a flood management tool outlining when operations to lift the South Boeing Bridge should begin. Each of the two methods outlined in this memorandum provide specific instructions regarding when to begin lift operations at the South Boeing Bridge. Method 1 instructs lifting the bridge when a discharge of 6,600 cfs is recorded at USGS gage 12117500 (Landsburg). A more conservative approach is outlined in Method 2, which suggests lifting of the bridge begin when Flood Phase 4 is declared (recorded discharge of 4,800 cfs at Landsburg). r This memorandum provides two possible procedures for determining when to begin lift operations at the South Boeing Bridge and does not endorse one method over the other. The City and Boeing will work together during floods to determine the optimal time to begin the bridge lift operation based on the information provided in this technical memorandum. However, Boeing is free to lift the bridge at any time during a flood event without any authorization from the City. Please contact Gary Schimek at the City of Renton Surface Water Utility (425-430-7205) with any questions or concerns. 25 24 i►AM > 22 0 z V 21 v CO c 20 8 17 16 15 Figure 1 - South Boeing Bridge Rating Curve Based upon August 2001 River Channel Surveys —*—Discharge at Landsburg I Note: 1. Stage at the South Boeing Bridge that occurs approximately 4 hours after the corresponding flow is recorded at Landsburg. 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 Discharge (cfs) Table 1 -Flood Phase Information King County Flood 1 2 3 4 Warning Phase Discharge at 1,000 2,800 3,500 4,800 Landsburg' (cfs) to 2,800 to 3,500 to 4,800 and Above Note: 1. Discharge corresponds to USGS gage 12117500 at Landsburg. Table 2 - Flood Frequency and Rating Table Information Flood Event" Flow at Landsburg for t = 0 hrs4 (cfs) Flow at Renton for t = 4 hrs4 (cfs) Flood Stage at South Boeing Bridge for t = 4 hrs (ft NGVD) Corresponding King County Flood Warning Phase 1.01 1,020 1,350 16.2 1 1.05 1,230 1,620 16.4 1 1.11 1,390 1,810 16.6 1 1.25 1,640 2,110 16.8 1 2 2,370 3,000 17.5 1 and 2 5 3,720 4,600 18.7 3 10 4,880 5,940 19.6 4 20 6,220 7,470 20.5 4 50 8,340 9,860 22.0 4 100 10,300 12,000 23.0 4 200 12,500 14,500 24.2 4 Notes: 1. A 100-yr flood event represents a 1/100 chance or .01 percent probability that this event will occur in any given year. 2. The South Boeing Bridge low chord elevation is 21.8 ft NGVD, which corresponds to a Landsburg flow of about 8,600 cfs and Renton Flow of 10,100 cfs. 3. These values were obtained from the City of Renton and represent the same flows used in last years analysis. 4. Flow values are based on results of a Log Pearson Type III analysis (King County, 2000). Attachment 1 King County Flood Warning Center (206) 296-4535 or 1-800-768-7932 Recorded Flood Information (206) 296-8200 or 1-800-945-9263 CECW-E Department of the Army ER 1110-2-401 U.S. Army Corps of Engineers Engineer Washington, DC 20314-1000 30 September Regulation 1994 1110-2-401 Engineering and Design OPERATION, MAINTENANCE, REPAIR, REPLACEMENT, AND REHABILITATION MANUAL FOR PROJECTS AND SEPARABLE ELEMENTS MANAGED BY PROJECT SPONSORS Distribution Restriction Statement .-approved for public release; distribution is unlimited. DEPARTMENT OF THE ARMY ER 1110-2-401 U.S. Army Corps of Engineers CECW-E Washington, DC 20314-1000 Regulation No. 1110-2-401 30 September 1994 Engineering and Design OPERATION, MAINTENANCE, REPAIR, REPLACEMENT, AND REHABILITATION MANUAL FOR PROJECTS AND SEPARABLE ELEMENTS MANAGED BY PROJECT SPONSORS 1. Purpose This regulation provides instructions for the prepara- tion of operation and maintenance manuals outlining the responsibilities of those local sponsors that have entered into binding agreements with the Secretary of the Army to be solely responsible for the operation, maintenance, repair, replacement, and rehabilitation (OMRR&R), and to pay 100 percent of the associated project costs. 2. Applicability This regulation applies to HQUSACE elements, major subordinate commands, districts, laboratories, and field operating activities having civil works responsibilities. 3. References a. PL 99-662. b. CFR Part 208, Flood Control Regulations, Section 208.10, Local Flood Protection Works; Maintenance and Operation of Structures and Facilities. c. ER 5-7-1(FR), Project Management. d. ER 1110-2-101, Reporting of Evidence of Distress of Civil Works Structures. e. ER 11 10-2-240, Water Control Management. f. ER 1110-2-1405, Hydraulic Design for Local Flood Protection Projects. g. ER 1110-2-1407, Hydraulic Design for Coastal Shore Protection Projects. h. ER 1110-2-1457, Hydraulic Design of Small Boat Navigation. i. ER 1110-2-1458, Hydraulic Design of Shallow Draft Navigation Projects. j. ER 1110-2-2902, Prescribed Procedures for the Maintenance and Operation of Shore Protection Works. k. ER 1130-2-303, Maintenance Guide. 1. ER 1130-2-339, Inspection of Local Flood Protection Projects. 4. Responsibilities a. The district commander is responsible for developing an OMRR&R manual for each project and separable element constructed under a separate project cooperation agreement (PCA), or functional portion of a project or separable element, reporting the status of the manual through the project management system as required by ER 5-7-1(FR). Normally, the Engineer- ing Division will be assigned the overall responsibility for preparing a draft OMRR&R manual with appro- priate inputs from other disciplines and, in consulta- tion with the project sponsor, furnishing the draft manual to the project manager for coordination with the project sponsor, and preparing the final OMRR&R manual for approval. For a functional portion, the OMRR&R manual is an interim manual pending completion of the entire project or separable element. b. The major subordinate commander is responsi- ble for review and approval of the manual. c. The project sponsor, normally through a permanent committee consisting of or headed by an official usually called the "Superintendent," is ER 1110-2-401 30 Sep 94 responsible for carrying out the provisions of the OMRR&R manual. 5. Policy The OMRR&R manual will include coverage of all OMRR&R subjects required by the PCA and existing regulations, in detail sufficient to ensure proper OMRR&R accomplishment by the project sponsor. Project sponsors, subject to review and approval of the district commander, may prepare supplements to the manual. The following paragraphs discuss the sections of a suggested table of contents (see Appen- dix A). Modifications shall be made as necessary to accommodate requirements of differing projects. a. Section 1, General. Provide a general descrip- tion of the project and include its specifically autho- rized purpose, features, and functions. b. Section 2, Authorization. Cite the authorizing legislation and provide a summary. c. Section 3, Location. Describe the physical setting for the project. Give the relationship to political boundaries such as state, county, city, and town. d. Section 4, Pertinent Information. Give the history of the area relative to the project purposes and summary information that would be pertinent to the OMRR&R of the project that was developed during planning and design studies, such as: for a flood control project, provide a summary of the climate, weather, hydrologic data to include norms and extremes, etc.; for a navigation project, provide infor- mation on currents, winds, waves, tides, navigation aids, hazards, etc.; for a shore protection project, provide erosion/accretion storm responses and annual volumes, wind and wave roses, tides, etc. e. Section S, Construction History. Furnish a historical summary of the project construction to include contracts (start and completion dates and costs) and names of contractors, contracting officers, and resident engineers. Reference a complete set of as -built plans, specifications, and drawings and include these as Appendix A to the manual. f. Section 6, Project Performance. Describe the protection provided by the various reaches of a flood control or shore protection project; discuss the conse- quences of flow or other conditions exceeding the project design; or describe the authorized navigation project design fleet and benefits thereto as the case may be. Discuss the mitigation and/or benefits of all other project functions such as cultural resources, environment, recreation, water supply, and hydropower. Indicate that protection of project bene- fits is a prime objective of OMRR&R. g. Section 7, Project Cooperation Agreement. State: The (signatory) and (signatory) (provide offi- cial nomenclature) have entered into a PCA for this project on (date) as required by Public Law (99-662). A copy of the duly executed PCA is included as Appendix B of the manual. 4( h. Section 8, Operation. Cover in detail the operations of the project that are necessary for the safe and efficient functioning of the project to pro- duce the benefits set forth in the project authorization. The operational requirements for nonreservoir projects are to be presented as operation plans covering essentially the who, what, where, when, and how of the various project operations. An outline of opera- tion records to be maintained and available for inspec- tion is to be provided. The operation of reservoirs, covered in water control manuals, in accordance with ER 1110-2-240, shall be separate from this operation and maintenance manual. i. Section 9, Emergency Operations. Present the emergency operation plans that cover preparations for and responses to project emergency conditions. An outline of emergency operation records to be main- tained and available for inspection is to be provided. Plans should cover, but not be limited to, such items as: (1) Chain of responsibility. (2) Emergency communications network including redundancies (internal and external). (3) Local emergency response assistance such as fire, police, medical, and Red Cross. (4) State and Federal emergency response agencies. (5) Flood fight or other plans that may have been part of design documentation. j. Section 10, Maintenance and Inspection. Cover the maintenance and inspection details required for the proper care and efficient operation of the vari- ous project elements. These plans may be combined or separate as best suits the particular project. The guidance for the proper formulation and the contents of this section are contained in ER 1130-2-303. ER 1110-2-401 30 Sep 94 Adaptations needed to satisfy conditions not covered in the ER are encouraged. Outlines of the mainte- nance and inspection records to be maintained and available for Government inspection are to be pro- vided. Government inspections will be performed in consultation with the project's sponsor. Indicate that the district engineer may update the manual for changed conditions or if warranted to correct condi- tions discovered during inspections. Such updating will be performed in consultation with the project sponsor. k. Section 11, Surveillance. Set forth a surveil- lance program covering appropriate measurements, observations, and other activities to be performed that will ensure project benefits are being obtained. An outline of surveillance records to be maintained and available for inspection is to be provided. This pro- gram should cover, but is not limited to, such activi- ties as: (1) Routine stage and discharge records to show continued satisfactory performance or provide timely notice that attention is required. (2) Hydrographic and land surveys as required to indicate when periodic dredging, correction of bank erosion, correction of levee settlement, etc., are to be performed. (3) Records of vessel traffic entering and leaving the harbor. (4) Special surveillance as may be covered in the project design documents. 1. Section 12, Repair, Replacement, and Rehabil- itation (RR&R). Include the following in this section: "Repair is considered to entail those activities of a routine nature that maintain the project in a well kept condition. Replacement covers those activities taken when a worn-out element or portion thereof is replaced. Rehabilitation refers to a set of activities as necessary to bring a deteriorated project back to its original condition. RR&R actions are to conform to FOR THE COMMANDER: 1 Appendix APP A - Operation and Maintenance Manual Sections the project as -built plans and specifications unless other arrangements are made with the district com- mander. These activities are the responsibility of the project sponsor." Cover in this section any RR&R activities not covered in previous sections that may require unusual treatment. m. Section 13, Notification of Distress. Cover the requirements of ER 1110-2-101 so that district commanders may see that appropriate actions are taken. 6. Regulatory Requirements Project sponsor maintenance of flood control projects may require an activity under the jurisdiction of the Corps' Regulatory Program. Although most activities which would normally be involved in maintenance of flood control projects are exempt from the statutory requirement for a Corps permit, or may be covered by a general permit, some maintenance activities may require specific authorization. Therefore, the project sponsor and the Corps will identify the operation and maintenance activities that will require a permit and those that are exempt. Permit requirements and exemptions identified before each project manual is written will be included in the project manual. Permit issues arising subsequent to the manual publication will be handled through the normal Corps regulatory process. 7. Approval The original and any subsequent revisions to the OMRR&R manual require approval of the major subordinate commander. However, the major sub- ordinate commander is hereby authorized to delegate the approval authority to district commanders. The original (signed document) shall be kept on file in the district. R. L. VMN- Alti'TWERP Colonel, Carps of Engi ajef of Slaff ER 1110-2-401 30 Sep 94 APPENDIX A OPERATION AND MAINTENANCE MANUAL SECTIONS Section 1. General Section 2. Authorization Section 3. Location Section 4. Pertinent Information Section 5. Construction History Section 6. Project Performance Section 7. Project Cooperation Agreement Section 8. Operation Section 9. Emergency Operations Section 10. Maintenance and Inspection Section 11. Surveillance Section 12. Repair, Replacement, and Rehabilitation Section 13. Notification of Distress Appendix A. As -Built Information Appendix B. Project Cooperation Agreement Al l' PM ADDENDUM Tev� DESCRIPTION CONDITION ACTION INTLS Addendum#: 134 1 0000 TITLE: CEDAR RIVER BRIDGE MAINTENANCE I I I I I I CRAFT: MEMM I I I I I I I 1 0005 DOCUMENTATION I I I I 0&M MANUALS ARE AVAILABLE AT THE 4-60 POD ROOM. I I I I 10010 SUGGESTED TRAINING YEARLY DRILL TO REMOVE AND REPLACE CYLINDERS TO RAISE AND LOWER THE BRIDGE. 0015 SPECIAL TOOLS/EQUIPMENT TORQUE WRENCH 0020 REGULATORY CONSIDERATIONS I I I I 0025 MSDS CONSIDERATIONS I I I I 1) USE ONLY APPROVED CLEANERS OR SOLVENTS WHEN CLEANING MACHINE OR PARTS I I I I I I 2) COPIES OF MSDS SHEETS CAN BE OBTAINED FROM POD ROOM I I I I I I I I I 3) LUBRICANTS USED DURING THE PERFORMANCE OF THIS PM: I I I I I I 0030 SAFETY CONSIDERATIONS I I I I I I ***** CAUTION ***** I I I I I I I I I PRIOR TO PERFORMING INSPECTION AND/OR SERVICE, BE I I I I I I I SURE TO LOCKOUT, TAG AND TRYOUT EQUIPMENT IAW FSOI I I I 809 (IF REQUIRED). I I ALWAYS WEAR APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT I I I I I I I I WHEN WORKING ON OR AROUND THIS EQUIPMENT. I I I I JOB SAFETY ANALYSIS FOR THIS PM IS LOCATED IN THE I I I I I I I 0035 SPECIAL INSTRUCTIONS I I I I 0050 I ADDENDUM INSTRUCTIONS I I I I I I I I 0055 USED ON SCHEDULE 04- MEMM I I I I 0056 UTILITY VEHICLE: NOTE: IT IS EXPECTED THAT THIS VEHICLE WILL RECEIVE MINIMAL USAGE, SO ALL DAILY AND WEEKLY INSPECTIONS WILL BE INCLUDED IN THE MONTHLY INSPECTION. CHECK FLUIDS: ENGINE OIL LEVELS HYDRAULIC OIL LEVELS RADIATOR COOLANT LEVELS BATTERY LEVELS TIRE PRESSURE TAKE TO AUTOMOTIVE FOR VEHICLE MAINTENANCE AS REQUIRED INSPECT VEHICLE FOR: LOOSE PARTS OR DAMAGE TO STRUCTURES OR WELDS OPERATION OF LIGHTS, SAFETY EQUIPMENT AND GAUGES CONDITION OF TIRES AND SUSPENSION CONDITION OF LOADLINE AND END ATTACHMENT FOR CORROSION, SEVERE KINKING. CRUSHING, CUTTING OR SLIPPAGE OF CABLE CLAMPS OR WEDGE SOCKET. POSITION OF LOADLINE WITH GUIDES AND ON SHEAVES FREE TURNING OF SHEAVES INSPECT SHEAVES AND CABLE DRUMS FOR WEAR AND CRACKS UNSPOOL LOADLINE AND CHECK ACCORDING TO ROPE MAINTENANCE PROCEDURE (SEE 0&M MANUAL) LUBRICATE ALL POINTS AS REQUIRED BY LUBRICATION CHART CHECK FOR EVIDENCE OF OIL LEAKAGE FROM HOSES AND GEARBOXES CHECK ALL CYLINDERS AND VALVES FOR SIGNS OF LEAKAGE CHECK ALL SECURING HARDWARE SUCH AS COTTER PINS. SNAP RINGS HAIRPINS, PIN KEEPERS. AND CAPSCREWS FOR PROPER INSTALLATION. CHECK CONDITION AND OPERATION OF ANTI•TWO BLOCK SYSTEM INCLUDING: SWITCH, POWER CORD, AND WEIGHT AND CHAIN AT BOOM TIP. CHECK ALL SAFETY COVERS FOR PROPER INSTALLATION CHECK FOR PRESENCE AND PROPER OPERATION OF LOAD HOOK AND SAFETY LATCH. CHECK LOAD HOOK FOR CRACKS OR HAVING MORE THAN 15 PERCENT NORMAL THROAT OPENING OR 10 DEGREE TWIST. CHECK BOOM LIFT AND OUTRIGGER/STABILIZER HOLDING VALVES FOR PROPER OPERATION. 0095 IF ADDITIONAL WORK IS REQUIRED THAT IS BEYOND THE SCOPE OF THE PM ACTIVITY. PLEASE CONTACT YOUR MAINTENANCE ANALYST FOR SCHEDULING AND GENERATION OF A PLANNED JOB. ENSURE COMPLETED ADDENDUM IS RETURNED TO YOUR POD ROOM. 0100 COMMENTS AND/OR FEEDBACK Employee: Date: Supervisor: Date: .ok PM ADDENDUM .rnspe < fioh DESCRIPTION CONDITION ACTION INTLS Addendum#: 135 I I I I 1 0000 TITLE: CEDAR RIVER BRIDGE INSPECTION I I I I I CRAFT: MEMM MWMA OPMH I I I I 1 0005 DOCUMENTATION I I I I 0&M MANUAL AND DRAWINGS LOCATED IN POD ROOM 4.60 BUILDING I I I I 0010 SUGGESTED TRAINING I I I I YEARLY PRACTICE RUN FOR RAISING AND LOWERING THE BRIDGE IN I I I I SEPTEMBER. I I I I 0015 SPECIAL TOOLS/EQUIPMENT I I I I TORQUING TOOL STOWED ON UTILITY VEHICLE. I I I I 0020 REGULATORY CONSIDERATIONS I I I I 0025 MSDS CONSIDERATIONS 1) USE ONLY APPROVED CLEANERS OR SOLVENTS WHEN CLEANING I I I I MACHINE OR PARTS I I I I I I I I I 2) COPIES OF MSDS SHEETS CAN BE OBTAINED FROM POD ROOM I I I I I I I I I 3) LUBRICANTS USED DURING THE PERFORMANCE OF THIS PM: I I I I 0030 SAFETY CONSIDERATIONS I I I I I I I I I ***"* CAUTION ***k* I I I I I I I I I PRIOR TO PERFORMING INSPECTION AND/OR SERVICE, BE I I I I SURE TO LOCKOUT, TAG AND TRYOUT EQUIPMENT IAW FSOI I I I I 809 (IF REQUIRED). I I I I I I I I I ALWAYS WEAR APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT I I I I WHEN WORKING ON OR AROUND THIS EQUIPMENT. I I I I I I I I I I I I I I 0035 SPECIAL INSTRUCTIONS I I I I PROCEDURE FOR LIFTING THE BRIDGE: NOTE: USE TRANSPORTATION PERSONNEL (CRANE OPERATOR AND HOOK TENDER) OPERATING A CRANE IN PLACE OF UTILITY TRUCK TO PERFORM LIFTING OPERATIONS ON THE BRIDGE. 1. POSITION CRANE ADJACENT TO A CYLINDER MANHOLE SUCH THAT THE BOOM IS PROPERLY ALIGNED TO PERFORM LIFTING OPERATION A THE OPERATOR IS RESPONSONSIBLE TO OBSERVE ALL SAFETY REQUIREMENTS AND FOR THE PROPER OPERATION OF THE CRANE. 2. USING A MANHOLE COVER SLING, REMOVE THE MANHOLE COVER WITH THE CRANE. FIND THE BAYONET MOUNT NUMBER, AND PREPARE TO PICK THE CORRESPONDING LIFT CYLINDER FROM THE UTILITY VEHICLE RACK. 3. ROTATE THE CYLINDER TO A VERTICAL POSITION, KEEPING THE ROD FULLY ENGAGED IN THE PIVOT RACK, BEFORE LIFTING THE CYLINDER. 4. LOWER THE CYLINDER INTO THE BAYONET MOUNT. ORIENTATION OF THE CYLINDER MUST BE SUCH THAT 45 DEGREES OF CLOCKWISE ROTATION WILL RESULT IN THE CYLINDER LOCK -BOLT EYE BEING 1" (+/-) FROM THE BAYONET MOUNT LOCK -BOLT EYE. 5. CONNECT THE CYLINDER TORQUING TOOL ASSEMBLY (SEE DRAWING M7) TO THE CYLINDER: CONNECT HYDRAULICS TO THE WEDGE BLOCK CONTROL VALVE ON THE HYDRAULIC POWER UNIT USING THE WEDGE BLOCK TRUCK -TO -BRIDGE -HOSES. ROTATE THE CYLINDER CLOCK- WISE (ABOUT 45 DEGREES) UNTIL LOCKED IN THE BAYONET MOUNT. 6. INSTALL THE CYLINDER LOCK BOLT AND REMOVE THE CYLINDER TORQUING TOOL ASSEMBLY. 7. DISCONNECT THE CRANE FROM THE LIFT CYLINDER; RETRACT OUTRIGGERS AND PREPARE TO MOVE CRANE AS NECESSARY. 8. CONNECT CYLINDER LIFT, LOWER, AND VENT LINES TO THE BRIDGE HYDRAULIC CONNECTIONS USING 6" HOSES. NOTE: ALWAYS CONNECT OR DISCONNECT ALL THREE HOSES FROM ANY CYLINDER PRIOR TO OPERATING BRIDGE HYDRAULIC POWER. IF IT IS NECESSARY TO STOP ONE CYLINDER DURING A LIFTING/ LOWERINNG OPERATION (TO RELEVEL THE BRIDGE DECK FOR EXAMPLE) ALWAYS DISCONNECT ALL THREE HOSES. FAILURE TO FOLLOW THIS PROCEDURE MAY RESULT IN FAILURE OF THE LIFT CYLINDER. 9. REPEAT STEPS 1 THROUGH 8 FOR THE REMAINING 3 CYLINDERS. 10. MOVE THE UTILITY VEHICLE TO THE SOUTHEAST CORNER OF THE BRIDGE. POSITION THE VEHICLE SUCH THAT THE REAR OF THE TRUCK BED IS 3 FEET FROM THE EDGE OF THE BRIDGE DECK, WITH HPU HYDRAULIC CONNECTIONS DUE EAST OF BRIDGE CONNECTION MANHOLE. 11. OPEN THE REMOTE CONNECTION MANHOLE, AND CONNECT THE LIFT. SHIM, AND WEDGE BLOCK HYDRAULIC CIRCUITS USING 25' HOSES. 12. CONNECT SHIM POSITION INDICATOR. (AT THIS POINT, THE BRIDGE IS READY TO BEGIN THE LIFT OPERATION.) 13. LIFT THE BRIDGE 0.5" AT THE CENTER PIERS TO UNLOAD THE SHIM PLATES. USE A TAPE MEASURE NEXT TO THE BAYONET MOUNTS TO VERIFY THE LIFT DISTANCE. 14. ACTUATE THE SHIM PLATE HYDRAULIC SYSTEM TO RETRACT THE TO CATCH UP. (SEE CAUTION IN STEP 8). 27. STOP THE BRIDGE HALF WAY DOWN AND VISUALLY VERIFY THAT WEDGE BLOCKS ARE FREE OF DEBRIS AND CORRECTLY POSITIONED THEN COMPLETE THE LOWERING OF THE BRIDGE DECK. 28. OPEN THE ACCESS COVERS OVER THE WEDGE BLOCK LOCKS AT THE EAST AND WEST END OF THE BRIDGE. LIFT AND ROTATE THE LOCK ROD 90 DEGREES (DRAWING M9). TO FREE THE WEDGE BLOCK ACTUATING TUBES. 29. ACTUATE THE WEDGE BLOCK HYDRAULIC SYSTEM TO LOCK THE WEDGE BLOCKS; HOLD VALVE IN THE LOCK POSITION UNTIL BOTH EAST AND WEST WEDGE BLOCKS CAN BE REINSTALLED IN THE "LOCKED" POSITION. 30. LIFT THE BRIDGE 2.5" AT THE CENTER PIERS TO ALLOW THE SHIM PLATES TO BE INSTALLED. USE A TAPE MEASURE NEXT TO THE BAYONET MOUNTS TO VERIFY LIFT DISTANCE. 31. ACTUATE THE SHIM PLATE HYDRAULIC SYSTEM TO REINSTALL THE SHIM PLATES IN THEIR SERVICE POSITION: HOLD VALVE IN EXTEND POSITION UNTIL BOTH EAST AND WEST "SHIMS INSTALLED" LIGHTS ILLUMINATE. 32. LOWER THE BRIDGE UNTIL IT RESTS ON THE PIERS. HOLD VALVE IN LOWER POSITION FOR 15 SECONDS AFTER BRIDGE DECK APPEARS TO HAVE STOPPED LOWERING. TO ASSURE THAT ALL LOAD HAS BEEN REMOVED FROM THE LIFT CYLINDERS. 33. DISCONNECT TRUCK -TO -BRIDGE HOSES, REPOSITION AND PREPARE CRANE AS DESCRIBED IN STEP 1. 34. DISCONNECT AND STOW 6' "CYLINDER LIFT AND LOWER HOSES LEAVING LIFT CYLINDER VENT LINE ATTACHED. 35. CONNECT CYLINDER TO WEDGE BLOCK HYDRAULIC VALVE ON UTILITY VEHICLE USING 25' TRUCK -TO -BRIDGE HOSES. USING THE WEDGE BLOCK HYDRAULIC CIRCUIT. COMPLETE RETRACTION OF THE LIFT CYLINDER ROD. FULL RETRACTION IS INDICATED BY OBSERVATION OF FULL 1000 PSI SETTING ON THE MAIN HPU PRESSURE GAUGE. 36. REMOVE ALL HOSES FROM CYLINDER AND DISCONNECT VENT LINE HOSE FROM THE BRIDGE: STOW. 37. ATTACH CRANE HOOK TO CYLINDER HOIST RING; TAKE UP SLACK 38. REMOVE LOCK BOLT AND USE TORQUING TOOL TO ROTATE CYLINDER IN BAYONET MOUNT APPROXIMATELY 45 DEGREES COUNTERCLOCKWISE TO LIFT -OUT POSITION. 39. DISCONNECT TORQUING TOOL, LIFT CYLINDER AND STOW ON TRUCK MOUNTED RACKS: INSERT CYLINDER ROD FULLY INTO PIVOT RACK IN THE VERTICAL POSITION. THEN LOWER CYLINDER TO INCLINED RACK KEEPING ROD FULLY ENGAGED IN PIVOT RACK 40. REPLACE MANHOLE COVER AND PREPARE TO REPOSITION VEHICLES 41. REPEAT STEPS 34 THROUGH 40 FOR REMAINING CYLINDERS PUSH TUBE CYLINDERS & CLEVIS BRACKETS: CHECK FOR LEAKS AROUND CYLINDER. VERIFY THAT HYDRAULIC CONNECTIONS TO CYLINDER ARE SECURE. CHECK ALL HOSES FOR FRAYING AND WEAR. CHECK CYLINDER ROD FOR SCRATCHES. CHECK GENERAL CONDITION OF CLEVIS BRACKETS AND CYLINDER PINS GREASE PINS AS NECESSARY. SHIM PLATE SYSTEM: CYLINDERS: CHECK FOR LEAKS AROUND TO CYLINDER. VERIFY THAT HYDRAULIC CONNECTIONS TO CYLINDER ARE SECURE. CHECK ALL HOSES FOR FRAYING AND WEAR. CHECK CYLINDER ROD FOR SCRATCHES. CHECK GENERAL CONDITION OF CLEVIS BRACKETS AND CYLINDER PINS GREASE PINS AS NECESSARY. INSPECT FOR RUST, CRACKING. AND PEELING OF PAINT. (CLEAN AND PAINT AS NECESSARY) SHIM PLATE BRACKETRY: VERIFY THAT NO DEBRIS IS CAUGHT IN THE BRACKETRY. VERIFY THAT ALL BOLTS ARE SECURELY TIGHTENED. (TIGHTEN BOLTS AS NECESSARY). INSPECT FOR RUST, CRACKING AND/OR PEELING OF PAINT. (CLEAN AND PAINT AS NECESSARY.) ORKOT SHIM PLATE: CHECK THAT OROKOT BEARING PAD IS SECURELY FASTENED. CHECK CONCRETE/GROUT ADJACENT TO BOLTS. CHECK BEARING SURFACE FOR WEAR. REMOVE ANY DEBRIS THAT HAS COLLECTED ON BEARING PAD UHMW BEARINGS: CHECK THAT BEARING PADS ARE SECURELY FASTENED IN PLACE CHECK BEARING SURFACES FOR WEAR. HYDRAULIC SYSTEM (BRIDGE MOUNTED): CONNECTIONS AT MANHOLE: DURING AND AFTER BRIDGE LIFT PHASE, VERIFY THAT THERE ARE NO LEAKS AT CONNECTIONS. CONNECTIONS AT LIFT CYLINDERS: DURING AND AFTER BRIDGE LIFT PHASE. VERIFY THAT THERE ARE NO LEAKS AT CONNECTIONS. FLOW DIVIDER: VERIFY THAT THERE ARE NO LEAKS AROUND FLOW DIVIDER. VERIFY THAT FLOW DIVIDER IS SECURLY FASTENED TO STRUCTURE (TIGHTEN BOLTS AS NECESSARY) VISUALLY INSPECT THE GENERAL CONDITION OF COMPONENTS AND BRACKETRY. RESERVOIR BLADDER: OPEN ENCLOSURE & VERIFY INTEGRITY OF URETHANE PILLOW. (LOOK FOR SIGNS OF WEAR). VERIFY THAT THERE IS NO OIL IN RESERVOIR BLADDER BEFORE, DURING. OR AFTER BRIDGE LIFT CYCLE. ITIDid WA.11 1111Ul To: Ron Straka From: Gary Schimek Date: July 2, 1999 Re: Cedar River 205 - Review of O&M Manual, Hydrology and Hydraulics lnfonnation The third paragraph under Section 2.2 states that "There should be enough cross-section at each bridge to define hydraulic capacity" and that "Additional cross sections will need to be added at bridge locations where this is not the case". Does the current HEC-2 model not have the appropriate number of cross section at each bridge? If yes, which bridges are lacking the appropriate number of cross -sections? • The first paragraph under Section 3.1 indicates that dredging was estimated to be required every three years. This estimate was developed by the USACE. The City believes that this is a very conservative value, and that a better estimate would be between 3 to 10 years rather than just 3 years. Section 3.3 implies that linear extrapolation of aggradation (or degradation) rates may be used, with best judgment, to predict future channel elevations. In the example described in the text, survey data is available for only two years (October 1998 and January 1999). The rate is determined and then linear extrapolation is applied to determine future conditions. What is the recommended protocol when data from more than two surveys are available (i.e., determine the average rate for period 1 and period 2 and then use linear extrapolation, determine the average over the entire period and then use linear extrapolation, etc.)? Are non -linear methods of extrapolating data recommended for certain occasions? Section 3.4 provides an example of surveying and dredging cycles for two cases. In the first case, "average" flow periods are assumed for period 1, 2 and 3. Based on a hypothetical HEC-RAS analysis, the required level of protection is expected to be available through High Flow Period 3 and a survey is scheduled at time D. In the second case, a "extreme" even occurs in period 3 and a survey is again scheduled at time D. These different cases seem to yield the same outcome: new survey at time D to determine if dredging is required prior to the next period. Suggest using examples that results it outcomes that are substantially different to facilitate comparison. DRAFT CEDAR RIVER, WASHINGTON OPERATIONS AND MAINTENANCE MANUAL HYDROLOGY AND HYDRAULICS INFORMATION DRAFT REPORT Prepared for: U.S. Army Corps of Engineers Seattle District P.O. Box 3755 Seattle, WA 98124-2255 Prepared by: WEST Consultants, Inc. 12509 Bel -Red Road, Suite 100 Bellevue, WA 98005 (425) 646-8806 June 1999 DRAFT TABLE OF CONTENTS SECTION 1. INTRODUCTION.......................................................................4 1.1 Background................................................................................................ 4 1.2 Scope of Work............................................................................................. 4 SECTION 2. MONITORING SEDIMENT DEPOSITION ........................... 5 2.1 Purpose....................................................................................................... S 2.2 Cross -Section Locations............................................................................. 5 2.3 Survey Points.............................................................................................. 7 2.4 Survey Timing............................................................................................. 8 SECTION 3. TIMING OF MAINTENANCE DREDGING .......................... 9 3.1 Purpose.......................................................................................................9 3.2 HEC-R4S Model Development................................................................... 9 3.3 Estimating Aggradation and Degradation at a Cross -Section ................. 10 3.4 Timing of Dredging.................................................................................. 13 SECTION 4. RAISING OF THE SOUTH BOEING BRIDGE ...................15 4.1 General..................................................................................................... 15 4.2 Action Flow Level..................................................................................... 15 4.3 Flood Warning System............................................................................. 16 4.4 Raising South Boeing Bridge Sequence .................................................... 17 SECTION5. REFERENCES..........................................................................18 DRAFT LIST OF FIGURES Figure 1. Historic Location of Cross -Sections (NHC, 1992)................................ 6 Figure 2. Example of Change in Cross -Sectional Geometry .............................. 10 Figure 3. Estimate of Forecasted Cross -Section Geometry ................................ 12 Figure 4. Example of Determining When to Dredge .......................................... 13 Figure 5. Example of Surveying and Dredging Cycle ........................................ 14 Figure 6. Example of a Rating Curve at the South Boeing Bridge ..................... 15 LIST OF TABLES Table 1. NGVD Reference Marks on the Cedar River (NHC, 1992).................. 7 Table 2. Cedar River Flow at each Warning Phase ........................................... 16 DRAFT SECTION 1. Introduction 1.1 Background The Seattle District, U.S. Army Corps of Engineers (USACE), contracted WEST Consultants, Inc., to provide hydrologic and hydraulic engineering input to an Operations and Maintenance (O&M) manual to be developed by the USACE for the Cedar River, at Renton, WA, Section 205 Flood Control Project. Services were contracted under Delivery Order No. 7 of Contract 4DAC W67-97-D-1016. 1.2 Scope of Work Specific tasks to be performed by WEST Consultants, Inc. are listed below and detailed in the following sections. • Develop methodology to periodically monitor sediment deposition in the reach of the river between the North Boeing Bridge and the Williams Avenue Bridge crossings (SECTION 2). • Develop a methodology which will be used to determine thresholds when maintenance dredging of the project reach is required to ensure channel capacity is provided for the authorized level of protection (100-year frequency flood). It is desired to have a yearlong lead-time for the permitting process (SECTION 3). • Develop methodology which will monitor flood flows and determine when to begin procedures to raise the South Boeing bridge structure, thus preventing flow impingement and ensuring channel capacity to provide the authorized level of protection (SECTION 4). Page 4 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc 11= : 2A SECTION 2. Monitoring Sediment Deposition ' 2.1 Purpose Periodic monitoring of sediment deposition in the dredged reach of the Cedar River is required between the North Boeing Bridge upstream to Williams Avenue to determine when maintenance dredging should occur. This section details the methods for surveying river cross -sections and monitoring sedimentation rates. The cross-section data will be used to determine the change in area at each cross-section and forecast an estimated channel shape for the future. As discussed in SECTION 3, the estimated channel shape will then be used to determine the available level of flood protection and the requirement for dredging. 2.2 Cross -Section Locations Historically, cross -sections have been surveyed at the locations shown in Figure 1. The survey of cross -sections at identical locations will facilitate long-term trend analysis. The change in cross - sectional area at these locations has already been estimated for two periods, from 1985 to 1991, and 1991 to 1997 (NHC, 1998). As shown in the figure, cross -sections need to be surveyed along the entire length of the project reach, from the mouth of the Cedar River upstream to the I-405 overpass (NHC cross-section numbers 0.1 to 8596). The cross-section data are required for hydraulic analysis to determine the available level of flood protection (see SECTION 3). Cross -sections should be surveyed in a consistent manner in order to facilitate the process of comparing cross -sections over time. Permanent reference marks should be established on both the left and right banks to ensure that the cross-section alignment will be the salne between subsequent surveys. This will simplify the process of calculating the change in area at each cross-section. The reference marks should be set in a straight line perpendicular to the direction of flow. The location of these reference marks should be identified relative to prominent landmarks so that they can be found quickly and easily at the time of each survey. There should be enough cross -sections at each bridge to define the hydraulic processes. This includes cross -sections at the upstream and downstream bridge facings, and at a distance both upstream and downstream from the bridge where flow lines are approximately parallel and flow is not affected by the structure (USACE, 1998a). Additional cross -sections will need to be added at bridge locations where this is not the case. Page 5 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc Figure 1. Historic Location of Cross -Sections (NHC, 1992) Whip- NHC USCOE Cross Section Cross Section k� + �- Number Number jr �iw•� %^,•�6 C� . ��/. 140 0.63 1; 4 955 8.62a'r_� 10236 1665 16.12 ✓ 2585 25.32 3460 33.82 3975 39.01 Ca�coThcaicr 4037 39.64 4192 41.14 ,,.. 1 t'.- 4732 46.54 t •� � t >bQ i"►r' c 13'ttltC'1"�: �; a 6 5332 52.44 5644 56.43 - !!!�-Z '`Gn...,rn.. Kr. `' • ` } 4} la SFr �yo�G 1 1. 405 6012 60.12 _ °• _ r'r �a y Housrr Wa 6502 65.01 ;* ; (��, ` " %�4s City Hall{ 6681 66.81 t f,,:r i-{•` t MT i� ... t. .t t ' 6931 69.31 _.. 4 a1' 1 Iwr3: . • 48� L LiUrary 3.' itl'L�it`Eiit`� a �t RN i K 384 +.... 7103 71.03 s f - . L1�'�pl' F1 ) 7483 74.83 ��' _,.'i�" 5[ a I`t )'' �07 BTan CODSOD Way 7653 76.82 i!' `� l.` K �i �� Wy.7 Q 1it1; i �.T!!V&P �[TJ 1lX 7845 78.44 . 8092 80.92 f , }'e r'a'.. tt� ; , walls Ave "�+iryRi A 8402 84.01 a► - ""h•-. ..� - • ,' , 'III ini: \•- .��� U�F 8476 84.38 ;'_ -: ! _ Senior CenG:r L i 8596 85.96 :.ti .+�'.�_ L, f i�b��i r• ,fs ^� „„t r 8836 88.36 •.. r yR�Ai1a 9446 94.46 *�� - - - k` ' �,� ? .e- RM R 462 r o .,� i Bce�n i ,. +, c;�E.,, • ..- .Lmmn Av102.3610236 � l � Y•. i iRM T'\ 11156 111,56 j\`1'4 _. s o� East Perimeter RdIS A ,j 1 . South Boeing Bridge t I �Lu \Vi�ahintolr o r ;, "t �v°r '' �� { T +• , ?.tuoirykl Airport North M�---'-" ving Bridge ����� 4_ - `_x IA .'■" �. _ .-i ;�.!'s.': �t 'it Cedar River C DRAFT 2.3 Survey Points There are specific points in the channel that need to be surveyed to define the river geometry. 'These points include the thalweg, top of bank, top of levee (if different from top of bank), and any significant breaks in grade or vegetation. Points within the main channel should be surveyed at a.minimum spacing of 20 feet (see SECTION 3). The cross-section end -points should extend beyond the area inundated during high flow. Every survey should be tied into a common elevation datum. The National Geodetic Vertical Datum (NGVD) has been used historically for Cedar River geometry surveys (NHC, 1992). A list of reference marks along the channel reach for this datum is shown in Table 1. In addition, a general description of the roughness characteristics (i.e. vegetation type) on the overbanks at the time of each survey should be developed. Additional details on cross-section surveying techniques are provided in FEMA, 1995. Table 1. NGVD Reference Marks on the Cedar River (NHC, 1992) Elevation in Feet Reference Marks (NGVD) Description and Location RM 681 21.72 A chiseled square on top of southwest comer 1-foot- high concrete curb on the northwest corner of the Boeing benchmark. RM 677 25.71 A chiseled square in the northwest corner of the northwest wingwall on the Boeing access bridge over Cedar River, 0.32 miles north of the Logan Avenue South bridge over the Cedar River. City of Renton benchmark. RM R 462 37.01 A standard disk set in top of the northwesterly corner of Logan Avenue South bridge guardrail over Cedar River. NGS benchmark. RM K 384 40.98 A standard disk set in the northeast corner of Bronson Way North bridge over Cedar River. NGS benchmark. RM NHC 1 34.18 Benchmark north of the Cedar River at the center (low point) of a storm drain grate located in a lawned area between the east side of Carco Theatre and the southwest corner of the Stoneway Concrete Company property. Page 7 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 2.4 Survey Timing Cross -sections must be surveyed frequently enough to adequately represent the effects of `sedimentation and scour on the channel over time. Recommended survey times include: ✓ Immediately after dredging of the river ✓ After the first high flow period that follows dredging ✓ Frequently enough to define channel geometry changes during "average" years ✓ After the occurrence of extreme flow events The survey proposed to be conducted after the river is initially dredged defines the initial channel geometry. The survey following the first winter high flow period after dredging is required to define a change in area at each cross-section. As discussed in SECTION 3, the change in cross- section area is used to forecast expected future cross-section shape. Cross -sections also need to be surveyed frequently enough to define changes in channel geometry over a series of succeeding "average" years. An "average" year can be defined as when the sediment load, sedimentation rate, and scour potential are relatively the same from year to year. . These surveys should be done during the low flow period as discussed in SECTION 3. Extreme flood events will occur that vary considerably from "average" conditions. Initially, surveying should be done anytime a 2-year (50% probability of exceedance) or greater flood event occurs. A survey should also be conducted if the flow volume for the winter is relatively large. A high runoff year could potentially carry a large sediment load. In either case, a channel survey should be made during the following low flow period to assess changes to channel geometry. The 2-year event was selected as an initial threshold for conducting surveys because it is typically defined as the smallest event that can cause significant changes to channel morphology. If it is shown that channel change does not occur in the Cedar River until a less frequent event, e.g. a 5- year (20% probability of exceedance) or 10-year (10% probability of exceedance) event, then this threshold could be adjusted. When assessing this, consideration should be made to the fact that the impact of a particular event may vary depending on its timing relative to the most recent dredging. Page 8 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT Extreme events do occur and can significantly change the channel morphology. In general, extreme events cannot be predicted. Therefore, surveying should be done as soon after the high flow period as possible. This will maximize the amount of time to obtain required permits. Typically, lower flows occur along the Cedar from May to November. The specific time of the year when surveying can be done safely and efficiently will need to be determined. SECTION 3. Timing of Maintenance Dredging 3.1 Purpose As part of the Section 205 flood control project, the Cedar River will be periodically dredged to improve conveyance through the City of Renton and decrease the potential for flooding (USACE, 1997). It was estimated that dredging would be required every three years on average. The following methodology was developed to determine when dredging should occur to maintain the authorized level of flood protection (100-year). The methodology requires that the level of flood protection be assessed based on a hydraulic model of the Cedar River. The hydraulic model, HEC-RAS (USACE, 1998b), would be developed based on surveyed channel geometry and predicted aggradation and degradation. The model would be used to predict the expected level of flood protection one-year in the future. An estimate of future flood protection level is required to facilitate permitting for required dredging. 3.2 HEC-RAS Model Development An HEC-RAS model can be used to evaluate the available or expected level of protection (100- year frequency flood) in the project reach. This analysis should be done using the channel geometry defined from the most recent cross-section data and the most recent realistic estimation of aggradation and degradation rates. An initial calibration of the model based on historic cross - sections and flood events should be made to determine the appropriate roughness coefficients (e.g. Manning's `n') during peak flood events. It is noted that a previous HEC-2 model was calibrated to the December 1995 and February 1996 flood events (NHC, 1992). Page 9 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 3.3 Estimatine Aggradation and Degradation at a Cross -Section Aggradation and degradation rates are required to forecast future cross-section geometry. A method for estimating these rates using observed changes in cross-section area is discussed by way of an example. Figure 2 shows cross -sections at USCOE river station 16.12 for October 1998, after the river had been dredged during that summer, and in January 1999, three months later. Figure 2. Example of Change in Cross -Sectional Geometry. 40 35 30 25 c 0 20 it W 15 10 5 0 Cedar River Cross -Section at USCOE River Station 16.12 '- - — -r — Oct'98 (RS 16.12) L Jan'99 (Sta. 15+81) I .50 0 50 10D 150 200 Distance (ft) The rate of aggradation or degradation at this cross-section can be approximated by calculating the change in cross-section area between subsequent surveys. This rate of change can then be extrapolated to the desired period in time to approximate the channel geometry. This change in cross -sectional area can be calculated easily by planimeter or in conjunction with a CAD software package. Page 10 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFr as Sent 6-28-99.doc DRAFT Because the two cross -sections did not align exactly, best judgement was used to 1) align bank stations and 2) determine the actual cross -sectional area that is undergoing change. For example, in Figure 2, it may be appropriate to consider only the change in area between stations at 28 and 161 feet, as the difference in bank elevations may not be due to actual changes in the channel but rather to how the survey was conducted. Note that the January 1999 survey was performed during a high flow period and it was probably difficult to survey. Because the bank stations of the different surveys do not line up exactly the cross -sections in the figure above were aligned by eye. The difference in the banks station locations may be due to slightly different alignments across the river. Establishing permanent reference points (see SECTION 2) at each cross-section would help to alleviate this issue. In addition, inclusion of more cross-section points along the bottom of the channel would give more resolution to the channel shape and might provide a more accurate estimate of change in the cross-section. / —apt Erosion and deposition rates are expected to decrease as the channe stabil' . Therefore, the calculated change in channel area will probably be high when extrapolated into the future. Best judgement may be needed if an unrealistic change in area is computed. A check can be made against the rates estimated over two approximate six year periods, 1985 to 1991, and 1991 to 1997 (NHC, 1998). Once the estimate of cross -sectional area change is made, the change in area is divided by the width of the affected channel and then divided by the time between the two surveys. This results in an estimate of average change in depth over time. This rate is then multiplied by the period from the most recent survey to the forecast period. This depth should then be added (for aggradation) or subtracted (for degradation) at each cross-section point (Figure 3). Page 11 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT Figure 3. Estimate of Forecasted Cross -Section Geometry. 43 35 30 25 c 0 20 v w 15 10 5 0 Cedar River Forecasted Cross -Section Geometry at USCOE River Station 16.12 o Raised Ground Elevations for Forecasted Geometry i — — — Cross-section shape for Forecast i �Jan'99 (Sta. 15+81) OF i I I � 1 -50 0 50 100 150 200 Distance (ft) Best judgement should be used when forecasting cross-section shape in this manner. Adding an average depth to each survey point in the main channel may not be appropriate depending on the surveyed cross-section geometry. Accordingly, each cross-section should be assessed individually. For example, if a point within the main channel is estimated to be higher than the nearest bank station, consider limiting the modified elevations to the bank station height. Page 12 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc TM 3.4 Tuning of Dredatng The HEC-RAS hydraulic model can be used to assess the current and future flooding potential once the estimates of aggradation or degradation at each cross-section have been made. This is done by executing a series of successive runs in the model. Figure 4 and the following text gives an example of the steps to take. "Typical high flow" periods are the months with the greatest observed mean flow (King County, 1993). It is assumed that this is the time of the most significant flooding, sedimentation, and scour. The months and times listed are approximate. Assume that a survey was conducted at both Time A (possibly after dredging) and at Time B. The hydraulic analysis should be done as soon as possible after the survey. Figure 4. Example of Determining When to Dredge. G1 N WNL'��iWF.11ii1NL'/fly@7WL'7!>�ii�'i161151L'JUNIMUG IU �lWlu'1�.71� UUNUU* WNV' IiNJU =o■■■ ■■■■■■■n■■■■■■■■■■■ Step 1. Assess current conditions. Run HEC-RAS using the most recent survey data (from Time B) and a 100-Year flow event. Is the required level of protection provided? ✓ If no, initiate permitting process immediately for dredging prior to the following high flow period (High Flow Period 2). ✓ If yes, proceed to Step 2. Step 2. Assess future conditions. Estimate aggradation and degradation at each cross- section using the most recent surveys (surveys at Time A and B), to a time after the next high flow period when the high flows are known to recede (e.g. end of April). Is the level of protection adequate for the forecasted period (High Flow Period 2)? ✓ If no, initiate the permit process immediately in order to dredge prior to that high flow period. ✓ If yes, proceed to Step 3. Step 3. Estimate aggradation and degradation for the next high flow period (High Flow Period 3), and each high flow period thereafter, until the level of protection is no longer met. Dredging should then be planned to occur in the low flow period prior to when the level of protection is no longer provided. Page 13 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT Using this same example, Figure 5 shows the timing relation between dredging, surveying, and starting the permit process. Assume that these are a series of "average" years and that the channel ,was dredged and a survey conducted at Time A. Another survey was made at Time B. An estimate of the forecasted change in area at each cross-section was then made based on the rate of observed changes between Time A and Time B. Based on an HEC-RAS analysis, the required level of protection is expected to be available through High Flow Period 3. In order to provide a year lead-time, the permit process for dredging would need to start the year before (at Time C for dredging to occur at Time E). To confirm the need for dredging, and to assess trends during "average" years, a new survey is conducted during the low flow period prior to High Flow Period 4 (at Time D). The hydraulic analysis is then re-evaluated using the most recent survey and aggradation and degradation rates based on the period from Time B to Time D. Figure 5. Example of Surveying and Dredging Cycle. Typical High Flow Period t Typical High Flow Period 2 Typical Nigh flow Period 3 Typical H-gh Fbw Period 4 on r h Time' A B I I I I I I I I I I I I I I I C I I I I I I I I I D I I I E If it is shown that based on this new analysis that the level of protection is provided for High Flow Period 4, then the planned dredging can be abandoned. The cycle then begins anew with an estimation of the next high flow period when the level of protection is not provided. If the new survey shows that the level of protection is not provided and that dredging is still required, then the permit process was started the previous year and dredging can therefore occur. In a series of prolonged "average" years, the frequency of surveys may be reduced if, from the data observed over time, it can be concluded that the rates of change at each cross-section are fully understood and provide an adequate estimate of change in cross -sectional area. This example has assumed that a series of "average" years occurred in succession. If an extreme event had occurred during this time, additional surveying would need to be done. For demonstrative purposes, assume that at 50-year event occurred in High Flow Period 3. Then a survey should be done at Time D to ensure that the required level of protection is provided for High Flow Period 4. The process would then start again using aggradation and degradation rates between surveys at Time B and Time D. Pale 14 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT SECTION 4. Raising of the South Boeing Bridge 4.1 General As originally constructed, the South Boeing Bridge impedes flow during high discharges causing a backwater effect upstream and thereby increasing the potential for flooding. To alleviate this effect, the bridge has been retrofitted so that it can be raised during times of flooding. Approximately three hours are needed in order to notify the necessary Boeing personnel to completely raise the bridge. It is also desired to minimize the duration that the bridge will be raised. 4.2 Action Flow Level The South Boeing Bridge must be raised prior to flow impinging upon it. Using the HEC-RAS model, the forecast channel geometry for the relevant high flow period (see SECTION 3) and a range of discharges, a rating curve can be developed for the South Boeing Bridge. An example is shown in Figure 6. The river discharge that will impinge on the bridge can thus be determined. Figure 6. Example of a Rating Curve at the South Boeing Bridge. 111111111111111111110 x File Options Help River:. Reach IlLower - RiverSta.: 139.64 E;carnple of a Rating Curve for Flow at Renton Gage Upstream End of South Boeing Bridge 24 ----- -—r-----_ -- lmpi' ging Flow Elevation I 20 III ; i 1 6 _-._. _ _____ 12 ................._._....._.............................._..........._.........__......_....._.....-___-._.._......... 'L-__ 10 0 2000 4000 6000 6000 Q Total (r_fs) ;I Legend W.S. Elev on c 10000 12000 14000 Page 15 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 4.3 Flood Warning System During periods of potential flooding, King County operates its Flood Warning Center 24 hours a day (King County, 1999). The Center issues warnings in four -phases based on flows at the Landsburg USGS gage. The Landsburg gage is located downstream of both the regulated Chester Morse Lake and Cedar Lake at approximately River Mile 32.0 (USGS, 1994). A USGS gage is also located within the City of Renton, 125 feet downstream from the bridge on Mill Avenue, at approximately River Mile 1.6. Discharge at Landsburg should be used to provide the three-hour lead-time required for raising the South Boeing Bridge. The travel time between the Landsburg (upstream) and Renton (downstream) has been estimated through simulation at 5 hours (King County, 1993). Flows above 5,000 cfs typically show a good correlation between Landsburg and Renton and little attenuation (approximately 450 cfs) is seen in the magnitude of the peaks. Real-time data is available for both gages online (at http://w,,vvdwatcm.wr.usgs.gov/current.html or http://www.nws.usace.army.mil/hh/rivers.htm) as well as hourly updated recorded information at the King County Flood Warning Center via the phone (206) 296-8200 or (800) 945-9263. The flood warnings range from Phase 1, an internal County alert, to Phase 4, where residential areas may be experiencing dangerous high flows and flooding (Table 2). The latter phase also includes flooding of the Renton Airport and potential overtopping of State Route 169. The warning phases are issued locally to police and fire departments, schools, other agencies, news agencies, and volunteer telephone trees. Table 2. Cedar River Flow at each Warning Phase. Phase Flow at Landsburg gage (cfs) Description 1 1,000 Internal Alert 2 2,800 Minor Flooding 3 3,500 Moderate Flooding 4 4,200 Extreme Flooding Page 16 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 4.4 Raising South Boeing Bridge Sequence The Flood Warning Center, in combination with flow monitoring during selective times by the 'City of Renton, will be utilized to notify Boeing personnel when the South Boeing Bridge will need to be raised. The sequence of events is shown below. 1. King County Flood Warning Center goes into operation (Phase 1). 2. King County Flood Warning Center issues warning to City of Renton (Phase 2 and higher). 3. Once the City of Renton receives a flood warning, they monitoring flow at Landsburg and Renton until the threshold, as determined from the RAS analysis, for raising the bridge is met. 4. The City of Renton notifies Boeing personnel when the threshold for raising the South Boeing Bridge is met. Operation procedures for the lift machinery at the South Boeing Bridge is detailed in Hamilton Engineering, 1998. Primary Contact: Mehdi Nakhjiri, Structural Engineer, South Boeing Bridge, 425-237-2836. Alternative Contact: (to be provided for the next report) 5. South Boeing Bridge is kept in the raised position until flood flows recede appropriately below the hydraulic capacity of the bridge as decided by the City of Renton. Page 17 CAwindows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT SECTION 5. References �FEMA (Federal Emergency Management Agency), 1995, Flood Insurance Study Guidelines and Specifications for Study Contractors, Washington D.C., September 1995. Hamilton Engineering, Inc., 1998, Boeing Renton South Bridge Lift Machinery Operation and Maintenance Manual, Seattle, WA, December, 1998. King County, 1993, Current and Future Conditions Report, Cedar River, Land and Water Resources Division, Seattle, WA. King County, 1999, King County Flood Warning System, Internet home page: littp:Hsplasli.metrokc.gov/wlr/flood/flood.htm, Land and Water Resources Division, Seattle, WA. NHC (Northwest Hydraulic Consultants), 1992, Lower Cedar River HEC-2 Model and Evaluation of Flood Relief Alternatives, Prepared for the City of Renton, WA, February 1992. NHC (Northwest Hydraulic Consultants), 1998, Cedar River Survey Data, Prepared for the City of Renton, WA, November 1998. USACE (US Corps of Engineers), 1997, Flood Damage Reduction Study, Cedar River Section 205, Renton, WA, Final Detailed Project Report and Environmental Impact Statement, Seattle District, WA. USACE (US Corps of Engineers), 1998a, HEC-RAS River Analysis System. Hydraulic Reference Manual, Version 2.2, Hydrologic Engineering Center, Davis, CA. USACE (US Corps of Engineers), 1998b, HEC-RAS River Analysis Systetn, User's Manual, Version 2.2, Hydrologic Engineering Center, Davis, CA. USGS (U.S. Geological Survey), 1994, Water Resources Data, Washington, Water Year 1994, Water -Data Report WA-94-1, Tacoma, WA. Page 18 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc 11/ U � ► : ► 1 ►I To: Ron Straka From: Gary Schimek Date: July 2, 1999 Re: Cedar River 205 - Review of O&M Manual, Hydrology and Hydraulics Information The third paragraph under Section 2.2 states that "There should be enough cross-section at each bridge to define hydraulic capacity" and that `Additional cross sections will need to be added at bridge locations where this is not the case". Does the current HEC-2 model not have the appropriate number of cross section at each bridge? If yes, which bridges are lacking the appropriate number of cross -sections? • The first paragraph under Section 3.1 indicates that dredging was estimated to be required every three years. This estimate was developed by the USACE. The City believes that this is a very conservative value, and that a better estimate would be between 3 to 10 years rather than just 3 years. Section 3.3 implies that linear extrapolation of aggradation (or degradation) rates may be used, with best judgment, to predict future channel elevations. In the example described in the text, survey data is available for only two years (October 1998 and January 1999). The rate is determined and then linear extrapolation is applied to determine future conditions. What is the recommended protocol when data from more than two surveys are available (i.e., determine the average rate for period 1 and period 2 and then use linear extrapolation, determine the average over the entire period and then use linear extrapolation, etc.)? Are non -linear methods of extrapolating data recommended for certain occasions? Section 3.4 provides an example of surveying and dredging cycles for two cases. In the first case, "average" flow periods are assumed for period 1, 2 and 3. Based on a hypothetical HEC-RAS analysis, the required level of protection is expected to be available through High Flow Period 3 and a survey is scheduled at time D. In the second case, a "extreme" even occurs in period 3 and a survey is again scheduled at time D. These different cases seem to yield the same outcome: new survey at time D to determine if dredging is required prior to the next period. Suggest using examples that results it outcomes that are substantially different to facilitate comparison. �j DRAFT CEDAR RIVER, WASHINGTON OPERATIONS AND MAINTENANCE MANUAL HYDROLOGY AND HYDRAULICS INFORMATION DRAFT REPORT Prepared for: U.S. Army Corps of Engineers Seattle District P.O. Box 3755 Seattle, WA 98124-2255 Prepared by: WEST Consultants, Inc. 12509 Bel -Red Road, Suite 100 Bellevue, WA 98005 (425) 646-8806 June1999 DRAFT TABLE OF CONTENTS SECTION 1. INTRODUCTION.......................................................................4 1.1 Background................................................................................................ 4 1.2 Scope of Work............................................................................................. 4 SECTION 2. MONITORING SEDIMENT DEPOSITION ........................... 5 2.1 Purpose....................................................................................................... S 2.2 Cross -Section Locations............................................................................. 5 2.3 Survey Points.............................................................................................. 7 2.4 Survey Timing............................................................................................. 8 SECTION 3. TIMING OF MAINTENANCE DREDGING .......................... 9 3.1 Purpose.......................................................................................................9 3.2 HEC-RAS Model Development ................................................................... 9 3.3 Estimating Aggradation and Degradation at a Cross -Section ................. 10 3.4 Timing of Dredging.................................................................................. 13 SECTION 4. RAISING OF THE SOUTH BOEING BRIDGE ...................15 4.1 General.....................................................................................................1 S 4.2 Action Flow Level..................................................................................... 15 4.3 Flood Warning System............................................................................. 16 4.4 Raising South Boeing Bridge Sequence....................................................17 SECTION5. REFERENCES..........................................................................18 DRAFT LIST OF FIGURES Figure 1. Historic Location of Cross -Sections (NHC, 1992)................................ 6 Figure 2. Example of Change in Cross -Sectional Geometry .............................. 10 Figure 3. Estimate of Forecasted Cross -Section Geometry ................................ 12 Figure 4. Example of Determining When to Dredge .......................................... 13 Figure 5. Example of Surveying and Dredging Cycle ........................................ 14 Figure 6. Example of a Rating Curve at the South Boeing Bridge ..................... 15 LIST OF TABLES Table 1. NGVD Reference Marks on the Cedar River (NHC, 1992).................. 7 Table 2. Cedar River Flow at each Warning Phase ........................................... 16 S � DRAFT SECTION 1. Introduction '1.1 Background The Seattle District, U.S. Army Corps of Engineers (USACE), contracted WEST Consultants, Inc., to provide hydrologic and hydraulic engineering input to an Operations and Maintenance (O&M) manual to be developed by the USACE for the Cedar River, at Renton, WA, Section 205 Flood Control Project. Services were contracted under Delivery Order No. 7 of Contract 9DACW67-97-D-1016. 1.2 Scone of Work Specific tasks to be performed by WEST Consultants, Inc. are listed below and detailed in the following sections. • Develop methodology to periodically monitor sediment deposition in the reach of the river between the North Boeing Bridge and the Williams Avenue Bridge crossings (SECTION 2). • Develop a methodology which will be used to determine thresholds when maintenance dredging of the project reach is required to ensure channel capacity is provided for the authorized level of protection (100-year frequency flood). It is desired to have a yearlong lead-time for the permitting process (SECTION 3). • Develop methodology which will monitor flood flows and determine when to begin procedures to raise the South Boeing bridge structure, thus preventing flow impingement and ensuring channel capacity to provide the authorized level of protection (SECTION 4). Page 4 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc SECTION 2. ' 2.1 Purpose Monitoring Sediment Deposition Periodic monitoring of sediment deposition in the dredged reach of the Cedar River is required between the North Boeing Bridge upstream to Williams Avenue to determine when maintenance dredging should occur. This section details the methods for surveying river cross -sections and monitoring sedimentation rates. The cross-section data will be used to determine the change in area at each cross-section and forecast an estimated channel shape for the future. As discussed in SECTION 3, the estimated channel shape will then be used to determine the available level of flood protection and the requirement for dredging. 2.2 Cross -Section Locations Historically, cross -sections have been surveyed at the locations shown in Figure 1. The survey of cross -sections at identical locations will facilitate lonb term trend analysis. The change in cross - sectional area at these locations has already been estimated for two periods, from 1985 to 1991, and 1991 to 1997 (NHC, 1998). As shown in the figure, cross -sections need to be surveyed along the entire length of the project reach, from the month of the Cedar River upstream to the I-405 overpass (NHC cross-section numbers 0.1 to 8596). The cross-section data are required for hydraulic analysis to determine the available level of flood protection (see SECTION 3). Cross -sections should be surveyed in a consistent manner in order to facilitate the process of comparing cross -sections over time. Permanent reference marks should be established on both the left and right banks to ensure that the cross-section alignment will be the same between subsequent surveys. This will simplify the process of calculating the change in area at each cross-section. The reference marks should be set in a straight line perpendicular to the direction of flow. The location of these reference marks should be identified relative to prominent landmarks so that they can be found quickly and easily at the time of each survey. There should be enough cross -sections at each bridge to define the hydraulic processes. This includes cross -sections at the upstream and downstream bridge facings, and at a distance both upstream and downstream from the bridge where flow lines are approximately parallel and flow is not affected by the structure (USACE, 1998a). Additional cross -sections will need to be added at bridge locations where this is not the case. Page 5 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc Figure 1. Historic Location of Cross -Sections (NHC, 1992) NHC USCOE` Cross -Section Cross-SectionL _�, `_ • ~«�„„m.31� Number Number', _ c 140 0.63� �10� 955 8.62t a 16.12 1665 2585 25.32 .. ✓+ < 14 '; r .- 9 + 3460 33.82 w j .�.. S.' t _ '� s "_ 4 f ! 3975 39.01 4� .1� A� Caiu;7hcaicr I ! - - - ,! 4037 39.64 r 4192 41.14 r'f� t .,, �+' _ •^- 6c. � - ._ . 4732 46.5-4 t Yrrot, 0�. �sy 5332 52.44/,���r�`}�vjG 3r,r 5644 56.43 �-? y r.. i . 2 va �0� t FA05` 6012 60.12 fl l fit Houser Way, 6502 65.01 '°r t r ' , -. City Hall t�•, 6681 66.81 �-r f-tdKt l�ilair H 6931 69.31 �, .! %► �= + "a'r8� Library y - _ f ` ' .. .' "fit RM K 394 ..f 7103 71.03 i y [K1�.1 7483 74.83>'itti� J Bronson Wa 7653 76.82 "I ' f �i l:t �i. ` :._-, - W Ate�A 7845 78.44 s. e� f. 1yyr; 8092 80.92 y Zl G3Qt`� 4 . _ Wells; Ave 8402 84.01 ... `�; r Williams Seniorccontcr8476 84.38 _: oS 8596 85.96 8836 88.36RMR462 ++''.« �:•� z4. 9446 94.46 =� v` Btxin it �, �' D �? ;� +r,;� •,, 10236 102.36 r, 11156 111.56 /"�a East P' erimeter RuS d _ '.South Rocin, t3ridgc Rbi t577 ��� . ,,� � _�. � , � ��� • i. � � _ �� tit � . ' ! s Rm,ttni M11nicilml Airportnow- 14nrtli F3oein€ Brid Cedar River E __. _. __ _ . a ..� )ram ,' - - __ ... _ s-s :y�!�.:•�� ��tj�' i s 2.3 Survey Points There are specific points in the channel that need to be surveyed to define the river geometry. 'These points include the thalweg, top of bank, top of levee (if different from top of bank), and any significant breaks in grade or vegetation. Points within the main channel should be surveyed at a.minimum spacing of 20 feet (see SECTION 3). The cross-section end -points should extend beyond the area inundated during high flow. Every survey should be tied into a common elevation datum. The National Geodetic Vertical Datum (NGVD) has been used historically for Cedar River geometry surveys (NHC, 1992). A list of reference marks along the channel reach for this datum is shown in Table 1. In addition, a general description of the roughness characteristics (i.e. vegetation type) on the overbanks at the time of each survey should be developed. Additional details on cross-section surveying techniques are provided in FEMA, 1995. Table 1. NGVD Reference Marks on the Cedar River (NHC, 1992) Elevation in Feet Reference Marks (NGVD) Description and Location RM 681 21.72 A chiseled square on top of southwest comer 1-foot- high concrete curb on the northwest comer of the Boeing benchmark. RM 677 25.71 A chiseled square in the northwest comer of the northwest wingwall on the Boeing access bridge over Cedar River, 0.32 miles north of the Logan Avenue South bridge over the Cedar River. City of Renton benchmark. RM R 462 37.01 A standard disk set in top of the northwesterly corner of Logan Avenue South bridge guardrail over Cedar River. NGS benchmark. RM K 384 40.98 A standard disk set in the northeast corner of Bronson Way North bridge over Cedar River. NGS benchmark. RM NHC 1 34.18 Benchmark north of the Cedar River at the center (low point) of a storm drain grate located in a lawned area between the east side of Carco Theatre and the southwest corner of the Stoneway Concrete Company property. Page 7 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 2.4 Survey Timing Cross -sections must be surveyed frequently enough to adequately represent the effects of sedimentation and scour on the channel over time. Recommended survey times include: ✓ Immediately after dredging of the river ✓ After the first high flow period that follows dredging ✓ Frequently enough to define channel geometry changes during "average" years ✓ After the occurrence of extreme flow events The survey proposed to be conducted after the river is initially dredged defines the initial channel geometry. The survey following the first winter high flow period after dredging is required to define a change in area at each cross-section. As discussed in SECTION 3, the change in cross- section area is used to forecast expected future cross-section shape. Cross -sections also need to be surveyed frequently enough to define changes in channel geometry over a series of succeeding "average" years. An "average" year can be defined as when the sediment load, sedimentation rate, and scour potential are relatively the same from year to year. These surveys should be done during the low flow period as discussed in SECTION 3. Extreme flood events will occur that vary considerably from "average" conditions. Initially, surveying should be done anytime a 2-year (50% probability of exceedance) or greater flood event occurs. A survey should also be conducted if the flow volume for the winter is relatively large. A high runoff year could potentially carry a large sediment load. In either case, a channel survey should be made during the following low flow period to assess changes to channel geometry. The 2-year event was selected as an initial threshold for conducting surveys because it is typically defined as the smallest event that can cause significant changes to channel morphology. If it is shown that channel change does not occur in the Cedar River until a less frequent event, e.g. a 5- year (20% probability of exceedance) or 10-year (10% probability of exceedance) event, then this threshold could be adjusted. When assessing this, consideration should be made to the fact that the impact of a particular event may vary depending on its timing relative to the most recent dredging. Page 8 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc Extreme events do occur and can significantly change the channel morphology. In general, extreme events cannot be predicted. Therefore, surveying should be done as soon after the high flow period as possible. This will maximize the amount of time to obtain required permits. Typically, lower flows occur along the Cedar from May to November. The specific time of the year when surveying can be done safely and efficiently will need to be determined. SECTION 3. Timing of Maintenance Dredging 3.1 Purpose As part of the Section 205 flood control project, the Cedar River will be periodically dredged to improve conveyance through the City of Renton and decrease the potential for flooding (USAGE, 1997). It was estimated that dredging would be required every three years on average. The following methodology was developed to determine when dredging should occur to maintain the authorized level of flood protection (100-year). The methodology requires that the level of flood protection be assessed based on a hydraulic model of the Cedar River. The hydraulic model, HEC-RAS (USACE, 1998b), would be developed based on surveyed channel geometry and predicted aggradation and degradation. The model would be used to predict the expected level of flood protection one-year in the future. An estimate of future flood protection level is required to facilitate permitting for required dredging. 3.2 HEC-RAS Model Development An HEC-RAS model can be used to evaluate the available or expected level of protection (100- year frequency flood) in the project reach. This analysis should be done using the channel geometry defined from the most recent cross-section data and the most recent realistic estimation of aggradation and degradation rates. An initial calibration of the model based on historic cross - sections and flood events should be made to determine the appropriate roughness coefficients (e.g. Manning's `n') during peak flood events. It is noted that a previous HEC-2 model was calibrated to the December 1995 and February 1996 flood events (NHC, 1992). Page 9 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doe DRAFT 3.3 Estimating Aggradation and Degradation at a Cross -Section Aggradation and degradation rates are required to forecast future cross-section geometry. A method for estimating these rates using observed changes in cross-section area is discussed by way of an example. Figure 2 shows cross -sections at USCOE river station 16.12 for October 1998, after the river had been dredged during that summer, and in January 1999, three months later. Figure 2. Example of Change in Cross -Sectional Geometry. 40 35 30 c 25 C 20 .q W 15 10 5 0 -50 Cedar River Cross -Section at USCOE River Station 16.12 i _ a _ Oct W (RS 16.12) L' i I —_ — _ -- ---- --*--Jan *99 (Sta. 15+81) i o -- a — % f I I' 0 50 100 150 200 Distance (rt) VA The rate of aggradation or degradation at this cross-section can be approximated by calculating �Nk the change in cross-section area between subsequent surveys. This rate of change can then be \ extrapolated to the desired period in time to approximate the channel geometry. This change in cross -sectional area can be calculated easily by planimeter or in conjunction with a CAD software Li package. Page 10 C:\windows\TEAIP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT Because the two cross -sections did not align exactly, best judgement was used to 1) align bank stations and 2) determine the actual cross -sectional area that is undergoing change. For example, ,in Figure 2, it may be appropriate to consider only the change in area between stations at 28 and 161 feet, as the difference in bank elevations may not be due to actual changes in the channel but rather to how the survey was conducted. Note that the January 1999 survey was performed during a high flow period and it was probably difficult to survey. Because the bank stations of the different surveys do not line up exactly the cross -sections in the figure above Nvere aligned by eye. The difference in the banks station locations may be due to slightly different alignments across the river. Establishing permanent reference points (see SECTION 2) at each cross-section would help to alleviate this issue. In addition, inclusion of more cross-section points along the bottom of the channel would give more resolution to the channel shape and might provide a more accurate estimate of change in the cross-section. Erosion and deposition rates are expected to decrease as the channel stabilizes. Therefore, the R(�JI calculated change in channel area will probably be high when extrapolated into the future. Best 1 Qa J judgement may be needed if an unrealistic change in area is computed. 'A check can be made against the rates estimated over two approximate six year periods, 1985 to 1991, and 1991 to 1997 (NHC, 1998). Once the estimate of cross -sectional area change is made, the change in area is divided by the width of the affected channel and then divided by the time between the two surveys. This results in an estimate of average change in depth over time. This rate is then multiplied by the period from the most recent survey to the forecast period. This depth should then be added (for aggradation) or subtracted (for degradation) at each cross-section point (Figure 3). Page I 1 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT Figure 3. Estimate of Forecasted Cross -Section Geometry. 40 35 30 25 x c ° 20 m Y W 15 10 5 0 Cedar River Forecasted Cross -Section Geometry at USCOE River Station 16.12 o Raised Ground Elevations for Forecasted I - ----- - Geometry i - - - Cross-section shape for Forecast i - — --- 0.-- Jan'99(Sta.15+81) I I I I I — t -50 0 50 100 150 200 Distance (ft) / Best judgement should be used when forecasting cross-section shape in this manner. Adding an average depth to each survey point in the main channel may not be appropriate depending on the surveyed cross-section geometry. Accordingly, each cross-section should be assessed individually. For example, if a point within the main channel is estimated to be higher than the nearest bank station, consider limiting the modified elevations to the bank station height. Page 12 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 3.4 Timing of Dredging The HEC-RAS hydraulic model can be used to assess the current and future flooding potential once the estimates of aggradation or degradation at each cross-section have been made. This is done by executing a series of successive runs in the model. Figure 4 and the following text gives an example of the steps to take. "Typical high flow" periods are the months with the greatest observed mean flow (King Count),, 1993). It is assumed that this is the time of the most significant flooding, sedimentation, and scour. The months and times listed are approximate. Assume that a survey was conducted at both Time A (possibly after dredging) and at Time B. The hydraulic analysis should be done as soon as possible after the survey. Figure 4. Example of Determining When to Dredge. WEt?�GI�UW!'J�d74'�I�lullJ��:I�C�WS'd l��lillullJL'IGI�L']W6�'��1[a�l�iiZllullJ!'J�.I�L']W� S�iB:� Step 1. Assess current conditions. Run HEC-RAS using the most recent survey data (from Time B) and a 100-Year floe, event. Is the required level of protection provided? ✓ If no, initiate permitting process immediately for dredging prior to the following high flow period (High Flow Period 2). ✓ If yes, proceed to Step 2. v' Step 2. Assess future conditions. Estimate aggradation and degradation -,at each cross- section using the most recen su eys s rvey a ime a dB), to a time after the next high flow period when the high flows are known to recede (e.g. end of April). Is the level of protection adequate for the forecasted period (High Flow Period 2)? ✓ If no, initiate the permit process immediately in order to dredge prior to that high flow period. ✓ If yes, proceed to Step 3. Step 3. Estimate aggradation and degradation for the next high flow period (High Flow Period 3), and each high flow period thereafter, until the level of protection is no longer met. Dredging should then be planned to occur in the low flow period prior to when the level of protection is no longer provided. Page 13 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT Using this same example, Figure 5 shows the timing relation between dredging, surveying, and starting the permit process. Assume that these are a series of "average" years and that the channel was dredged and a survey conducted at Time A. Another survey was made at Time B. An estimate of the forecasted change in area at each cross-section was then made based on the rate of observed changes between Time A and Time B. Based on an HEC-RAS analysis, the required level of protection is expected to be available through High Flow Period 3. In order to provide a year lead-time, the permit process for dredging would need to start the year before (at Time C for dredging to occur at Time E).�o confirm the need for dredging, and to assess trends during "average years, a new survey is conducted during the low flow period prior to High Flow Period 4 (at Time D).,/The hydraulic analysis is then re-evaluated using the most recent survey and aggradation and degradation rates based on the period from Time B to Time D. Figure 5. Example of Surveying and Dredging Cycle. Wm+761�L•7W6,C��4dl�Iu1L'JL'J�:1EyL'�WE�>1�4JB.�lu1lJL'��.1�L']WL°1�[�I+J!'�Y(.1�L'JW�'d !�� If it is shown that based on this new analysis that the level of protection is provided for High Flow Period 4, then the planned dredging can be abandoned. The cycle then begins anew with an estimation of the next high flow period when the level of protection is not provided. If the new survey shows that the level of protection is not provided and that dredging is still required, then the permit process was started the previous year and dredging can therefore occur. In a series of prolonged "average" years, the frequency of surveys may be reduced if, from the data observed over time, it can be concluded that the rates of change at each cross-section are fully understood and provide an adequate estimate of change in cross -sectional area. This example has assumed that a series of "average" years occurred in succession. If an extreme event had occurred during this time, additional surveying would need to be done. For demonstrative purposes, assume that at 50-year event occurred in High Flow Period 3. Then a survey should be done at Time D to ensure that the required level of protection is provided for High Flow Period 4. The process would then start again using aggradation and degradation rates between surveys at Time B and Time D. Page 14 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT SECTION 4. Raising of the South Boeing Bridge 4.1 General As originally constructed, the South Boeing Bridge impedes flow during high discharges causing a backwater effect upstream and thereby increasing the potential for flooding. To alleviate this effect, the bridge has been retrofitted so that it can be raised during times of flooding. Approximate) three hou )are needed in order to notify the necessary Boeing personnel to completely ra' tdge. It is also desired to minimize the duration that the bridge will be raised. derr�''`r 4.2 Action Flow Level The South Boeing Bridge must be raised prior to flow impinging upon it. Using the HEC-RAS model, the forecast channel geometry for the relevant high flow period (see SECTION 3) and a range of discharges, a rating curve can be developed for the South Boeing Bridge. An example is shown in Figure 6. The river discharge that will impinge on the bridge can thus be determined. Figure 6. Example of a Rating Curve at the South Boeing Bridge. Exarnple of a Rating Curve for Flow at Renton Gage _ Upstream End of South Boeing Bridge Legend Impinging Flo Elevation I —�- -----;----- —--- ----� W.S. Elev i 7W CO 0 I Page 15 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 4.3 Flood Warning System Daring periods of potential flooding, King County operates its Flood Warning Center 24 hours a day (King County, 1999). The Center issues warnings in four -phases based on flows at the Landsburg USGS gage. The Landsburg gage is located downstream of both the regulated Chester Morse Lake and Cedar Lake at approximately River Mile 32.0 (USGS, 1994). A USGS gage is also located within the City of Renton, 125 feet downstream from the bridge on Mill Avenue, at approximately River Mile 1.6. Discharge at Landsburg should be used to provide the three-hour lead-time required for raising the South Boeing Bridge. The travel time between the Landsburg (upstream) and Renton (downstream) has been estimated through simulation at 5 hours (King County, 1993). Flows above 5,000 cfs typically show a good correlation between Landsburg and Renton and little attenuation (approximately 450 cfs) is seen in the magnitude of the peaks. Real -tithe data is available for both gages online (at littp:H%,,,xvwdwatcin.wr.usgs.gov/current.html or http://www.nws.usace.army.mil/hh/rivers.htm) as well as hourly updated recorded information at the King County Flood Warning Center via the phone (206) 296-8200 or (800) 945-9263. The flood warnings range from Phase 1, an internal County alert, to Phase 4, where residential areas may be experiencing dangerous high flows and flooding (Table 2). The latter phase also includes flooding of the Renton Airport and potential overtopping of State Route 169. The warning phases are issued locally to police and fire departments, schools, other agencies, news agencies, and volunteer telephone trees. Table 2. Cedar River Flow at each Warning Phase. Phase Flow at Landsburg gage (cfs) Description 1 1,000 Internal Alert 2 2,800 Minor Flooding 3 3,500 Moderate Flooding 4 4,200 Extreme Flooding Page 16 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT 4.4 Raising South Boeing Bridge Sequence The Flood Warning Center, in combination with flow monitoring during selective tithes by the `City of Renton, will be utilized to notify Boeing personnel when the South Boeing Bridge will need to be raised. The sequence of events is shown below. 1. King County Flood Warning Center goes into operation (Phase 1). 2. King County Flood Warning Center issues warning to City of Renton (Phase 2 and higher). 3. Once the City of Renton receives a flood warning, they monitoring flow at Landsburg and Renton until the threshold, as determined from the RAS analysis, for raising the bridge is ����� met. pu .loot �1 C 4. The City of Renton notifies Boeing personnel when the threshold for raising the South Boeing Bridge is met. Operation procedures for the lift machinery at the South Boeing Bridge is detailed in Hamilton Engineering, 1998. Primary Contact: Melidi Nakhjiri, Structural Engineer, South Boeing Bridge, 425-237-2836. Alternative Contact: (to be provided for the next report) 5. South Boeing Bridge is kept in the raised position until flood flows recede appropriately below the hydraulic capacity of the bridge as decided by the City of Renton. Page 17 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFT as Sent 6-28-99.doc DRAFT SECTION 5. References `FEMA (Federal Emergency Management Agency), 1995, Flood Insurance Study Guidelines and Specifications for Study Contractors, Washington D.C., September 1995. Hamilton Engineering, Inc., 1998, Boeing Renton South Bridge Lift Machinery Operation and Maintenance Manual, Seattle, WA, December, 1998. King County, 1993, Current and Future Conditions Report Cedar River, Land and Water Resources Division, Seattle, WA. King County, 1999, King County Flood Warning System, Internet home page: littp:Hsplasli.metrokc.gov/wlr/flood/flood.htm, Land and Water Resources Division, Seattle, WA. NHC (Northwest Hydraulic Consultants), 1992, Lower Cedar River HEC-2 Model and Evaluation of Flood Relief Alternatives, Prepared for the City of Renton, WA, February 1992. NHC (Northwest Hydraulic Consultants), 1998, Cedar River Survey Data, Prepared for the City of Renton, WA, November 1998. USACE (US Corps of Engineers), 1997, Flood Damage Reduction Study, Cedar River Section 205, Renton, WA, Final Detailed Project Report and Environmental Impact Statement, Seattle District, WA. USACE (US Corps of Engineers), 1998a, HEC-RAS River Analysis System. Hydraulic Reference Manual, Version 2.2, Hydrologic Engineering Center, Davis, CA. USACE (US Corps of Engineers), 1998b, HEC-RAS River Analysis System, User's Manual, Version 2.2, Hydrologic Engineering Center, Davis, CA. USGS (U.S. Geological Survey), 1994, Water Resources Data, Washington, Water Year 1994, Water -Data Report WA-94-1, Tacoma, WA. Page 18 C:\windows\TEMP\Cedar River Operations and Maintenance Manual - DRAFr as Sent 6-28-99.doc ' CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE First Response All required personnel will respond to assist in any manner required to control the flood. This will be Boeing employees and Construction personnel (Partners). Facilities Management will assign duties. Maintaining Maintaining all flood activity will be done by required personnel and the Partners will be instructed to maintain both (south & north) bridge operations, this activity will be determined by Facilities Management. Clean Up Operations All cleaning up efforts will be done by both Boeing employees and the Partners. Facilities Management will assign duties. ifir`Ar� 1 Page 1 of 21 C:M/INWORD/DAVE/BRIDGE/PLAN.DOC O O 9 CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Boeing Fire will contact all necessary personnel i.e.. Facilities, Security, and set up the EIC. Facilities will contact addition personnel needed. Radio frequency WORK 1 will be used. Move airplanes and all ground support equipment as requested by Flight Line Management Shutdown all necessary utilities, water, electrical, etc. Set up all necessary safety equipment i.e. life lines, barricades. Limit access to Aprons D and A. Assemble all necessary equipment. Sandbag as required for buildings 5-60 and 5-14 and assemble necessary equipment. MAINTAIN BRIDGE AND BUILDING ACTIVITIES 11/21/96 Page 2 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE COMMUNICATION Facilities Duty Supervisor will instruct Maintenance Dispatch to contact all necessary emergency flood personnel. EMERGENCY INFORMATION CENTER EIC will require: 2 - maintenance radios (EIC and Boeing Security) 1 - overhead projector 1 - telephone 1 - network line Radio frequency will be WORK 1, maintenance dispatch will alert all personnel to use other frequencies until further notice. EIC will need a conference room, this will either be located at the Boeing Fire Station or 4-17.2 Conference Room 22D2. EIC REPORTING FORMAT Anyone involved or requiring information about the flood may sit in the briefings but, please allow those who need to report on the emergency to be able to do so. So "Sit Down Shut Up and Hang On" MAINTENANCE DISPATCH Maintenance dispatch will contact, all necessary personnel required to assist in flooding conditions: Emergency Contact Team Leader List Construction Management (as required by management) Flight Line Management Operations Technology Quality Assurance PCA Stores BOEING FIRE DEPARTMENT (BFD) Boeing Fire will contact the City of Renton Fire Department and request assistance of the city boat. Set up all rescue equipment, life lines, life ring etc. at both bridges. 11/21/96 Page 3 of 21 CMINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Locate the Haz Mat Van at the south end bridge until south end bridge operations have been set up and then relocate the van to the north bridge to provide rescue if needed. BOEING SECURITY Maintain Gate D-30, 24 hours a day. Boeing Security will limit access to Apron D except for emergency crews. Barricade will be set up at the south end of perimeter road, up by gate west of the 5-50. Access to both North and South Bridges will be limited to those with the "Emergency Bridge Personnel" passes. ONLY Boeing Fire and Security will be allowed in these areas without the pass. Provide Security Guard at the north east corner of the 4-41 when north access gate to Renton Field is open. EIC will provide Security Shift Lieutenant a maintenance radio to keep in radio contact using radio frequency WORK 1. Contact Renton Parks Dept. to close off access to south bridge through the park. Maintain contact with Renton Police Dept. and possibly close off 6th and Logan. FACILITIES SERVICES Provide all necessary equipment and personnel to perform work in a safe and cooperative manner. FACILITIES CONSTRUCTION MANAGEMENT Provide resources (Partners) to assist as required by Facilities Management. FLIGHT LINE MANAGEMENT Provide support to move aircraft and relocate vital equipment to maintain production. 11/21/96 Page 4 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE EQUIPMENT MOVES & SHUTDOWN ACTIVITY AIRPLANES MOVES Move all airplanes from Apron D with shop approval to airplane stall specified by Flight Line Management. Move airplanes position in stall A-5 through A-9 to higher ground, specified by Flight Line Management. Move support equipment to 5-50 i.e. oil carts, electrical equipment, and other equipment specified by the shop. SHUTDOWN ACTIVITY Plumbing Shutdown sewer line running between 5-43 and Apron D. Turn off power to lift station and lock restrooms. Close the valves in A-7 valve box and the oil water separator valve to river. Turn off power to the valve box sump pump. Turn off power to the pump station at the rear of stall A-7. Close both inlet and discharge valves to A-9 Oil Water Separator. Contact Boeing Fire to isolate the sectional valves. Electrical - This should occur as flood conditions vvv�=sen. 60 Hz Power Power to 5-43 bldg. is at the north east corner of A-7. Power to A-7 oil water separator, sump pump and control valves is located at the north west side of A-7. Power to Apron A drain sump pump is located at A-9. Power to "A" Aprons is located at 5-50 substation Vault VA-1. 11/21/96 Page 5 of 21 CMINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE 400 Hz Plan on Apron "A" Emergency generator at the 5-51, sand bag the opening of the roll - up door on the Motor Generator Building (door is located on the East side of building). Close the screened openings on the South and West side of the Motor Generator building. Turn off the Motor Generators (push the Stop Button located on the Motor Generator Control Panel) 5-50 sub station, located on the north east corner, turn off the input power to the Motor Generator building (Vault VA-1, Breaker # 12 outside building 5-50) General In crew shelter, remove all equipment off the ground, with shop assistance. This also includes equipment in the 5-60 and 5-14 buildings. And sand bag around buildings 5-60 and 5-14. 11/21/96 Page 6 of 21 C:,NVINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE EQUIPMENT Set out the emergency flood cart at the north and south bridges, these will be located in the 4-21 maintenance storage. Assemble Emergency Van an the south bridge, call BFD to locate Haz Mat Van at the north bridge. EQUIPMENT (South Bridge) 1 - back hoe 1 - thumb track hoe 1 - front loader 1 - 21,000 lb. Hyster 1 - 7,000 lb. forklift Emergency Van EQUIPMENT (North Bridge) 1 - back hoe 1 - thumb track floe 1 - front loader 1 - 21,000 lb. Hyster 1 - 7,000 lb. forklift Haz Mat Van Assemble the following equipment at each bridge: South Bridge Equipment 1 - Chain saw and PPE (chaps, hard hat with hearing protection) 2 - 8' x 3/8" chain 6 - 1" shackles 4 - portable light carts (gasoline powered) 4 - nylon straps 35' x 6 " 1 - grab hooks 3/8" 1 - log tong 30" 4 - pike poles 6' 2 - pike poles 12' 2 - pallets barricades 11/21/96 Page 7 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE EQUIPMENT Cont. North Bridge Equipment 1 - chain saw and P.P.E. 3 - portable light carts (gasoline powered) 2 - pallets barricades Assemble the following equipment at the 5-14 & 5-60: 2 - pumps (Rain for Rent) Sandbags - enough to stack 4 high an go around both buildings (see illustration) 11/21/96 Page 8 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE EMERGENCY FLOOD KIT (Locate at the South Bridge) The Emergency Flood Kit will be stored in the 4-21 maintenance storage area. 6 pr. - rain gear (jackets, pants, hats) rubber boots (to be issued from Haz Mat van) 6 - hard hats and liners 6 - life jackets 12 pr. - gloves (leather, cotton, rubber, etc.) 12 pr. - glove liners 10 pr. - Safety glasses (both clear and reflective) 5 rolls - Barricade Tape 1 roll - Avis strap 4 - solid stream bore nozzles (to be used by Boeing Fire oniy) 5 - flat shovels North bridge will use equipment out of the Haz Mat Van as required. 11/21/96 Page 9 of 21 C:,WINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE BRIDGE CONTROL PERSONNEL Facilities Management will contact Construction Management for additional man power and equipment as needed. All personnel will have maintenance radios and be on emergency radio frequency WORK 1. Maximum personnel on the bridge at any given time is five. Personnel requirements at south bridge: 1 - Operations (Boeing) 1 - Logistics (for both bridges) 1 - thumb operator (contractor) 1 - front loader operator 1 - back hoe operator 1 - fork lift driver (as required) 1 - spotter (also provides other support) 2 - Boeing Fire Dept. (Rescue) 1 - Boeing Security Guard Personnel requirements at north bridge: 1 - Operations (Boeing, can be conducted from the south bridge if necessary) 1 - thumb track hoe operator (contractor) 1 - front loader operator (contractor) 1 - spotter (also provides other support) 2 - Boeing Fire Dept. (Rescue) 1 - Boeing Security Guard (Secure off area from 4-41 N.E. corner to north bridge access gate) SAFETY NOTE: All bridge operations stop when water overlaps the bridge, this means all equipment will be removed to Apron "D" and wait for further instructions. See Job Safety Analysis for details. 11/21/96 Page 10 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Job Safety Analysis: Job Number/Title: Date: Bridge Control for Flooding 11/08/96 Organization Chart No#. 6-8000 Required and/or Recommended Personal Protective Equipment: Hard hat, rain gear, life vest, rubber boots, leather gloves, chaps, rescue boat, life ring, life line, face shield. Seauence of Basic Job Stens Review Date 11 /08/97 Potential Accidents or Hazards Priority Analysis Job without a history of injury or illness Reviewed by: D. Casteneda, W. Wood Approved by: D. Casteneda, W. Wood Recommended Safe Job Procedure 1. Install all safety equipment i.e. life lines that 1. Drowning, falling hazards, hypothermia, 1. A life ring w/75" of line needs to be secured runs across river, and 2 life rings and arrange sprains and strains on each end of the bridge. Knotted life line with Boeing Fire that the rescue boat has been secured on each end of the banks, just above deployed. Sirens and emergency light will be water line, life vests must be worn during both used to clear all personnel immediately from procedures. Boeing Fire Dept. crews will do the bridge this. 2. Gather all necessary equipment to remove 2. Driving hazards 2. Use of seat belts (if installed) and bridge rails (forklift and trailers). appropriate P.P.E. 3. Remove bridge rails. 3. Drowning, falls, muscle sprains and strains. 3. Bend at the knees, do not twist and lift at the same time, get help if necessary. Use forklift when possible. Life vests must be worn while on bridge. 4. Gather all equipment needed to remove logs 4. Loss of equipment/injury to employee if 4. Pay attention to detailed instructions, and debris. Back hoes, loader, cable, chains, operating instructions are not followed. Back contact maintenance or supervisor for any shackles and all P.P.E.. and muscle strains and sprains. service required. Ensure all operators are trained on equipment, acquire outside contractor as required. 11/21/96 Page 11 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC Job Safety Analysis: Job Number/Title: Bridge Control for Flooding Continued page 2 acquC11CC UI DASIC Juu otr 5. Set up portable lights for night work. CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Date: Review Date: Priority Analysis 09/03/96 09/03/97 Job without a history of injury or illness I"ULCIIIIill t1CC1UCUl3 UI IIALAIUS IMMUIIIIUCIIUCU JAIL JUU i I UCCUUI C 5. Fires, sprains and strains, driving hazards. 5. Move equipment into place with a forklift when possible. Refuel generators w/funnel and have a IOBC fire extinguisher within 50 ft. of operation. Store no more than 5 gallons of fuel at the site. 6. Management and Control: Establish safe 6. Drowning, falls, muscle sprain and strain. 6. Bend at the knees, get help if necessary. working areas for removal of trees from bridge, Use forklift when possible. Life vests must be loading of trucks with wood, and appropriate worn while on the bridge. personnel needed. 7. Gather additional equipment needed for emergencies, i.e., Emergency Van, spill supplies, BFD standby, Security, BLT etc.. 7. Loss of equipment/injury to employee if operating instructions are not followed. Back and muscle sprains and strains. 7. Bend at the knees, do not twist and lift at the same time, use appropriate safety equipment. 8. Start removal of logs and debris from water. 8. Loss of equipment/injury to employee if 8. Train in use of all equipment in Emergency operating instructions are not followed. Back Van. Establish radio communication and and muscle strain, head injuries and drowning. emergency procedures, tie in with EOC (if established). Life vests must be worn while on the bridge. 11/21/96 Page 12 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC Job Safety Analysis: Job Number/Title: Bridge Control for Flooding Continued page 3 Sequence of Basic Job Steps CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Date: Review Date: 09/03/96 09/03/97 Potential Accidents or Hazards Priority Analysis Job without a history of injury or illness Recommended Safe Job Procedure 9. Remove large logs from water and slide off 9. Dropping of loads, equipment damage, 9. Dropping of loads, equipment damage, bridge. tripping over equipment. Water washing over tripping over equipment. Water washing over bridge being injured by debris and drowning. bridge being injured by debris and drowning. 10. Cut logs to appropriate size to fit in 10. Cuts, debris in eyes, foot injury hazards. 10. Use chaps, face shield, hearing protection containers for removal. and safety type foot wear. 11. Place cut up logs into trucks to haul off 11. Driving hazards, falling debris. 11. Wear seat belts, work with Renton Airport site, using heavy equipment and Boeing Flightline personnel to reduce FOD hazard. Hard hats must be worn by ground personnel 12. Continue removal operations. 12. Repeat steps 8 thru 11. 12. Repeat steps 8 thru 11. 13. Clean up bridges, Flightline and Aprons. 13. Driving hazards, FOD. 13. Wear seat belts, work with Renton Airport Using Loader, back hoe and sweeper and and Boeing Flightline personnel to reduce FOD replace bridge rails. hazards. Life vests must be worn while on bridge 14. Release bridge for use. 14. Bridge collapse. 14. Have bridge inspected for structural integrity by Boeing Structural Engineers, prior to airplane moves back onto Apron D. 11/21/96 Page 13 of 21 C:/WINWORD/DAVE/BRIDGE/PLAN.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE CLEAN UP PREPARATIONS Clean Up - (While all debris and wood is being removed) Boeing personnel will be used for clean up in conjunction with our Partners. Work should be done in conjunction with Renton Airport (Gale Reed) 235-2591 to maximize clean up efforts. EQUIPMENT 2 - Bobcats (Rental) 1 - back hoe 1 - front loader 1 - 21,000 lb. Hyster 18,000 gallon tank, oil water separator type (Rain for Rent) 5,000 gallon tanker truck (Boeing, Environmental Operation) Assistance from Boeing Fire Dept. to wash down airplane positions, compass rose and taxi way. Hand held hose lines will be used to wash around 5-50, 5-43, crew shelters, and where ever needed. Construction Management will provide by contractor to: Provide manpower as required Trucks to haul silt from site to approved landfill. Trucks to haul logs to approved disposal site. Drainage System will clean out: 400 Hz pits in each stall zipper drain Out fall drains Oil water separator; ROWS 37 and 38. and all pits that have air water etc. 400 Hz Plan on Apron "A" Place portable pump unit in the pump station located at the rear of aircraft position A-7, North of the center line in the aircraft position. Leave the portable pump unit in the pump station. Use as needed until the sump pump is placed in operation and can control the water coming into the pump station. The power source (115 VAC) for the sump pump is located on the Power Stand at aircraft position A-9 (South East corner). Clean and pump the oil water separators and storage tanks located at A-7 and A-9. Apply power to the oil water separator and make operational. 11/21/96 Page 14of21 C:/WINWORD/DAVE/SAFETYBRIDGE/EQUIP.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE 400 Hz Plan on Apron "A" cont. Clean the Mechanical pits, Data pit, and Electrical pit (silt deposits after the flooding) Clean and pump the man holes located along the rear of the aircraft positions Remove the cover on the Electrical pits. Remove the bolts in the explosion - proof box located in the electrical pit. Remove water and silt deposits from the explosion - proof box. Dry the inside of the explosion - proof box. Loosen the lugs on all wire terminals and put Pena Trox on each connection. Remove the existing thermal expansion compensator material located in the explosion - proof box and the side of the electrical pit. Replace the thermal expansion compensator material located in the explosion - proof box and the side of the electrical pit. Energize power to the Motor Generator building (Vault VA-1, Breaker # 12 outside building 5- 50). After verified equipment is cleaned, dry and megger tested if needed. Start the Motor Generators (push the Start Button located on the Motor Generator Control Panel). Motor Generators must operate 24 hours continuously so the Motor Generators will stab before putting a load on them. Energize the Gate boxes and push the Reset Button on front of the Gate Boxes. All fault indications and alarms should be reset. If a fault indication or alarm should continue, call Maintenance. Call maintenance to run Load Tests on the aircraft positions. Albert R. Strain, Equipment Engineering 6-8CTH, MIS 98-38, Phone : 237-5415 Bridge Inspection Both north and south bridges must be inspected for structural damage before aircraft can be towed across them. Water level must down to be inspected by a structural engineer. 11/21/96 Page 15 of21 C:/WINWORD/DAVE/SAFETYBRIDGE/EQLTIP.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Apron D and A Cleaning Stalls A5 thru A9 must be restored first to provide access to run stall and Compass Rose. Building 5-36, clean floor and unplug drainage system. Building 5-42, clean restroom and replenish supplies. Aprons must be cleared of all FOD before engine runs or towing of aircraft. 11i21,96 Page 16 of21 C:.NVINWORD/DAVEiSAFETY/BRIDGE/EQUIP.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE EMERGENCY CALL IN Name Area Coverage/Duty Pager/Cell Work Home FACILITIES SERVICE Larry Schueller Group Leader Core 982-3562 237-9982 937-9664 Dave Casteneda 1 st Shift Bridge Operations 982-2471 / 930-6077 234-7885 854-8265 Marshall Trover 2nd Shift Bridge Operations 930-6078 237-8500 271-2896 Rod Christensen - Primary Contact Team Leader Core Group - Flood Surface Water Interface 982-3709 237-3113 722-1365 Rick Patneaude - Secondary Team Leader Group C - Flood Surface Water Interface 982-2353 237-1337 Ron Gray Sand Bag Coordination - Flight Line 982-0674 237-0974 391-8058 Jeff Look 1 st Shift Sand Bag Coordination - In Plant 982-1432 965-3181 (509) 656-0127 2nd Shift Sand Bag Coordination - In Plant Donna Zeiler Logistics 982-1032 234-0160 735-8408 CONSTRUCTION MANAGEMENT Jack Andrew - Primary Contact Contractor Contact 986-7230 237-8034 630-2169 Greg Abell Aron D Construction 986-7106 237-0941 462-7445 Kevin Duffy - Primary Contact BAUGH Construction 540-5887 237-3721 880-6402 Mark Borchardt BAUGH - Superintendent 663-7024 237-6881 11/21/96 Page 17of21 C:/WINWORD/RAVE/SAFETYBRIDGE/EQUIP.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE EMERGENCY CALL IN Name Area Coverage/Duty Pager/Cell Work Home EMERGENCY INFORMATION CENTER Gary Gordon Boeing Fire 986-6834 / 949-2529 657-8657 271-1231 Joe Richards Boeing Fire 930-6124 657-9712 804-9764 SAFETY Will Wood Central Region Safety 982-3012 237-4911 848-2803 SHEA Yvette Barnett Emergency Response Coordinator 930-6068 237-9263 838-6761 Name Area Coverage/DutyCoverage/Duty Pager Work Home FLIGHTLINE MANAGEMENT 5-50, Apron A, B, C, & D Office - Primary Number 237-1480 Tom Elliott 340-7812 337-3339 228-1661 Pat Brown 986-6203 237-1481 432-0534 Don Krumennacker 986-6206 237-1482 481-4549 Gary McKechnie 986-6443 237-3538 848-6256 Paul Milla a 986-6207 237-9529 863-3585 Ray Neese 986-6444 237-7235 931-6609 Jon Schmidt 986-6448 234-0065 941-8130 Michele Taylor 986-9462 234-2534 228-0836 Bruce Mitchell Stores 982-2044 655-0370 862-6138 11 /21 /96 Page 18 of 21 C:/W IN WORD/DAVE/SAFETY/BRIDGE/EQUIP.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE EMERGENCY CALL IN Name Area Coverage/DutyCoverage/Dtity Pager Work Home OPERATIONS TECHNOLOGY 5-14 Bldg. Gary Herzber 237-7393 235-8561 Mark Miller 237-0960 630-8109 Lynn Seemiller 237-0695 735-2471 Schlotterbeck 237-0398 255-6328 PCA - 791 5-14 Bldg. Jackie Anderson 237-2587 235-3292 John Biewer 234-2121 432-4364 QUALITY ASSURANCE 5-14 Bldg. Martin Grimm 982-2657 965-0000 804-9668 Mary Greenreich 237-2662 Chuck Larson 237-0094 743-5869 1121,96 Page 19of21 C:/WINWORD/DAVE/SAFETY/BRIDGE/EQUIP.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Equipment Rental Vendor Contact Phone Number Rental Equipment Char eline 40 Rentals 682-5194 Bobcat, backhoe 8-6U295-8CY0- FLDN96-000 Star Rental 854-3922 Bobcat, backhoe 8-6U295-8CY0- FLDN96-000 Queen Pump 872-0960 Pumps 8-6U295-8CY0- FLDN96-000 Rain For Rent Mark Gonder 489-3434 Pumps, tanks of various types 8-6U295-8CY0- FLDN96-000 11/21/96 Page 20 of 21 C:/WINWORD/DAVE/SAFETY/BRIDGE/EQUIP.DOC CENTRAL REGION - CEDAR RIVER FLOOD RESPONSE Contractor Contacts and Equipment Provided Contractor Contact Phone Number Service Char eline Baugh Kevin Duffy 237-3721 2 - Operators 8-6U228-8CY0- 540-5887 w/Thumb for north FLDN96-000 & south bridges, 7 gas powered light carts, all equipment used at the north bridge i.e. loader Drainage Systems Dennis 242-7280 Clean catch basins 8-6U229-8CY0- FLDN96-000 Midsouth Salmon Robert Anderson 386-4332 Will take trees w/root balls for salmon hatcheries 11/21/96 Page21 of21 C:/WINWORD/DAVE/SAFETY/BRIDGE/EQUIP.DOC FLOOD WORK AREA BARRICADED AREA November 1996 Renton Plant FACILITIES FLOOD CONTROL PLAN Organization Plan Holder M/S Copy Team Leader Core Group Dave Casteneda 63-01 001 Core Group Leader Larry Scheuller 63-01 002 Team Leader Core Group Rod Christensen 93-03 003 Team Leader Core Group Jeff Look 93-03 004 Team Leader Group F Mashall Trover 93-03 005 EIC Gary Gordon 3U-67 006 Boeing Fire Dan Johnson 17-WA 007 Boeing Security Pat Blanford 60-78 008 Renton Field Ron Gray 98-38 009 Maintenance Dispatch 237-9900 93-03 010 & 11 Construction Management Hans Sorenson 63-01 012 Safety Will Wood 63-01 013 Flightline Management Tom Elliott 94-29 014 City of Renton Greg Zimmerman N/A 015 016 017 DAMAGE REPORT STATUS BOARD Time of Facility Information Usable? Usable? Re ort Location Buildin s Roads, Electricity, Water, etc.) YES NO Use colored pens or magnets to indicate priority of information: RED = High; BLUE = Medium; GREEN = Low eb:w/win-E0CPLAN2 RESOURCES Status of Personnel: SITUATION STATUS BOARD Sequential Number Time of Report Location Situation Description Responding Organization T.__ use colored pens or magnets to indicate priority of information: RED = High; BLUE = Medium; GPEEN = Low eb:%%,/win-EOC PLAN 2 ACCOUNTABILITY OF PERSONNEL "Time of Report Number of Number of Number of Location Injuries Fatalities Trapped eb:wt%in-EOCPLAN2 KING COUNTY NOXIOUS WEED CONTROL PROGRAM BEST MANAGEMENT PRACTICES Tansy Ragwort (Senecio jacobaea) Class B Noxious Weed Description Tap -rooted biennial or short-lived perennial with 2 to 4 foot tall erect stems, branched near the top, with clusters of bright yellow daisy -like flower heads. Each flower head has 10 to 15 ray flowers (petal -like flowers) surrounding yellow disk flowers and the flower clusters grow near the top of the stem. First year plants are dense rosettes with dark green ruffled or lobed leaves on purplish stems. Habitat • Typically found in full sun or partial shade in pastures, on roadsides and horse trails, in forest clear -cuts and on vacant lands. Also common on cleared forestlands, adjacent roadsides and fields and in unmaintained areas in new developments in King County. Reproduction • Reproduces by seed. Plants that go to seed die at the end of the season. • Plants can flower from June to October but typically start to form seeds by mid August. • Seeds are borne a short distance by wind and longer distances by animals, in hay and on equipment and vehicles. Large plants may produce as many as 150,000 seeds. • Seeds can be viable for as long as 15 years. Seeds in the upper 2 cm of soil generally are viable for 4 to 5 years. Below 2 cm, the seeds remain dormant longer. Tilling, grazing or other disturbance will cause these dormant seeds to germinate. Control Methods The preferred method of control is Integrated Pest Management (IPM). IPM involves selecting from a range of possible control methods to match the management requirements of each specific site. The goal is to maximize effective control and to minimize negative environmental, economic and social impacts. Control methods should be multifaceted and adaptive, developed to reflect the available time, funding, and labor of the participants, the land use goals, and the values of the community and landowners. Management will require dedication over a number of years, and should allow for flexibility in method as appropriate. Management Plan • Small infestations are easily hand -pulled or dug up. Isolated plants should be carefully removed in order to stop them from infesting a larger area. • For larger infestations, the strategy will depend on the land use of the site. In pastures, good grazing practices and management of grass and forage species will greatly improve control of tansy ragwort. Specific suggestions are given in the pasture section below. KC Noxious Weed Control Program 08/03/00 Page 1 Tansy Ragwort BMP For control of large infestations on roadsides and other non -pasture areas, herbicide use may be necessary. For tansy ragwort, it is most effective to apply selective broadleaf herbicides in the spring and again in the fall. Infested areas should not be mowed until after the herbicide has had a chance to work. If a non -selective herbicide (such as glyphosate) is used, combine with effective re - vegetation of the site to prevent tansy ragwort seedlings from re -infesting the area. For several years following treatment, monitor areas for new plants from the seed bank. Early Detection and Prevention • Tansy ragwort is easy to find once it flowers. In June and July, monitor pastures, areas used by livestock, horse trails and roadsides for new populations of tansy ragwort. • Pull up isolated or small populations. If there are many rosettes, it may be necessary to treat the area with an appropriate herbicide in the early fall or the following spring. • Prevent plants from spreading from existing populations by washing vehicles, boots and animals that have been in infested areas. • If animals are being moved from an infested pasture to an uninfested pasture, first hold them for at least five days so that the seeds pass out of the animals' digestive system. Manual • Pull the plants after they bolt but before they flower. Typically this is from May to June. • Plants in flower can form viable seeds even after they are pulled so carefully bag and dispose of all flowering plants, especially later in the season when seeds are beginning to form. • If the plants are in seed, it is very difficult to bag the seed heads without dispersing the seeds. • In areas where mature plants are pulled, there are usually many small rosettes and seeds left in the soil. Carefully search the area for rosettes and dig them up. Roots break off easily and re -sprout with young plants, so use a digging tool. • Return to the same location in the following spring and summer to remove plants coming up from seeds already in the soil and continue to monitor the area for several years. Mechanical m Mowing will not control tansy ragwort effectively. Plants are able to re -sprout and flower again in the same season when mowed. Plants that are regularly mowed can persist as short- lived perennials or flower below the level of the mower. • Mowing may increase the amount of toxin ingested by the animals because grazing animals are often unable to avoid eating small tansy ragwort plants growing among pasture grasses. Biological • Biological control can take up to six years to have a significant impact on the infestation. Population density and the number of flowering plants can be reduced but there will always be some plants remaining with this method. • The ragwort flea beetle (Longitarsus jacobaeae) larvae mine the roots of the rosettes and kill plants in the spring when they start to bolt. Heavy feeding by adult flea beetles on the leaves can kill rosettes in the fall and winter. Flea beetles are most effective in sunny pastures that don't get flooded and are below 2400 feet in elevation. KC Noxious Weed Control Program 08/03/00 Page 2 Tansy Ragwort BMP • The cinnabar moth (Tyria jacobaeae) does best in sunny, warm areas at elevations less than 3000 feet where the tansy ragwort densities are greater than 4 per 10 sq. ft. (4/rn). It does not do well on the coast and in shady areas under trees or where the plant density is below 1 plant per 20 sq. ft. • The most effective biological control method is to release the ragwort flea beetle and the cinnabar moth together. Chemical • Herbicides should only be applied at rates recommended on the label and for the site conditions and land usage specified on the label. • Glyphosate: there isn't any information on the effectiveness or timing of glyphosate treatment (e.g. Roundup) for tansy ragwort. Treatment with glyphosate needs to be followed by re -seeding with grass. Without re -seeding, bare areas will be re -infested from the seed bank and by any missed plants. • Selective Broadleaf Herbicides: most effective when the tansy ragwort is growing in a grassy area. Re -spraying the following year is necessary to control late -germinating plants. Continue to monitor for new plants for at least four years after the initial treatment and following any disturbance to the soil such as tilling or construction. ❑ Selective herbicides that are effective on tansy ragwort include 2,4-D (many products), dicamba (e.g. Vanquish or Banvel), a combination treatment of dicamba and 2,4-D (e.g. Weedmaster) and a combination treatment of triclopyr and 2,4-D (e.g. Crossbow). ❑ Apply 2,4-D in the spring before any flowers appear. The best control is early in the spring after growth begins. The 2,4-D/dicamba mix is effective at the flowering stage as well. Fall applications should be made after the rains have initiated seed germination. Control in Pastures • The best defense against tansy ragwort in a pasture is a healthy, dense stand of perennial grasses and clover. Maintain a healthy pasture by appropriate use of seeding and fertilizer. Use a mix of grass and clover species to improve resistance to tansy ragwort. Fertilize according to the soil needs. • Grazing should be managed to promote grass and clover vigor. Graze uniformly and move 1� -� _ A., �: 7 grazing ,= he soil is pn vet animals from area to area in a planned 3�.qu.:i17 e. rLv�iu 5.u�.:ib 1,__ because holes can be opened up to new weed infestations. Some winter grazing by smaller animals can stimulate growth of clover and improve grass health. • Be sure to monitor for tansy ragwort on edges of pastures and disturbed areas around fences and watering holes. Remove isolated plants before they go to flower. • In fields densely infested with tansy ragwort, remove all cattle and horses until the tansy ragwort is reduced to isolated plants. • Suppression of large infestations of tansy ragwort with a selective herbicide will greatly increase grass production, which in turn increases the suppression of the tansy ragwort. Apply herbicide on a warm, sunny day when no rain is expected for at least 6 hours. • Follow herbicide label instructions for grazing restrictions and re -seeding instructions. Both dicamba and 2,4-D can reduce the amount of clover in pastures, so it may be necessary to re- seed following a broadcast application. For patchy infestations, it is better to spot -spray the tansy ragwort to avoid harming the clover. KC Noxious Weed Control Program 08/03/00 Page 3 Tansy Ragwort BMP • If needed, apply a nitrogen fertilizer after the selective herbicide application and then manage grazing so that 4 to 6 inches of grass re -growth remains at the end of the growing season so that grasses can effectively resist re -invasion by the tansy ragwort. Additional Information Legal Status in King County: Class B, County -Select (non-native species designated for control by the King County Noxious Weed Control Board). The King County Noxious Weed Control Board requires property owners to control tansy ragwort on private and public lands throughout the county. Local Distribution The heaviest concentrations of tansy ragwort are in south and central King County in the areas surrounding Auburn, Enumclaw, Maple Valley and Covington. There are also significant infestations on Vashon Island, in the Woodinville and Kenmore areas, and other rural areas of the county. Although there is a correspondence between grazing areas and .tansy ragwort infestations, many of the uncontrolled populations are found on vacant properties that were logged or cleared for development and along city, county and state roads. Impacts and History • Serious threat to livestock. Contains pyrrolizidine alkaloids that are converted to toxic pyrroles in the liver after ingestion. The damage to the liver is irreversible and cumulative and will usually kill the affected animal. • The most toxic part is the leaves, which are ingested while the animal forages for grasses and other desirable plants near the tansy ragwort. • Dried leaves maintain their toxicity but not the bitter taste, and when mixed with hay or other silage it is not possible for the animal to detect or avoid the tansy ragwort. • Cattle and horses are most vulnerable to poisoning but it is also toxic to deer, pigs and goats. • First reported in North America in 1913 in British Columbia, reported in Portland, Oregon in 1922 and by the 1950's, had become a serious economic problem west of the Cascades. References Tansy Ragwort. Pacific Northwest Extension Bulletin 175. Revised August 1994. Pasture Management for Control of Tansy Ragwort. Pacific Northwest Extension Bulletin 210. August 1984. Written Findings. Washington State Noxious Weed Control Board. Integrated Veizetation Management Technical Bulletin: Tansy Ragwort. T. Drlik, 1. Woo and S. Swiadon, Editors. 1998. Bio-Integral Resource Center. Biological Control of Weeds in the West. Western Society of Weed Science Prepared by: King County Noxious Weed Control Program 201 S. Jackson St., Seattle WA 98104 Phone: (206) 296-0290 Internet: http://dnr.metrokc.gov/wlr/LANDS/weeds.htm KC Noxious Weed Control Program 08/03/00 Page 4 Scotch Broom Control in the Pacific Northwest Important Questions to Consider before Designing a Control Plan What are the management goals for the particular site? If the site is to be used for passive recreation or a nature preserve, then the control plan should be designed to preserve and enhance the native vegetation and wildlife on the site. On the other hand, if the goal is to clear Scotch broom in order to develop the site or replace the broom with turf then the control plan will focus on Scotch broom removal in the quickest and most efficient way possible. If the goal is to replant the site with trees for the purpose of tree production, then the control method will be to control and suppress the broom long enough for the trees to establish and shade out the broom plants. What resources are available? The control plan will depend partly on the following resources: the size of the work force, access to tools and heavy equipment, money for herbicides and staff time, and expertise in mechanical weed removal, prescribed burning and native plant revegetation. Some techniques such as hand pulling with a Weed Wrench are quickly learned by anyone but are very labor-intensive. Techniques such as herbicide application, prescribed burning and tractor -pulled mowing require particular expertise and even licensing in the case of herbicide use. How long a time commitment can be made to the control plan? If the control plan can be carried out over a 6 to 10 year period, it is more likely to be effective than if it is over a shorter time period. Also, if the control needs to be completed in a few years or less, then the methods used will need to be intensive and thorough and may need to include herbicide use. King County Noxious Weed Control Program; 201 S. Jackson St. Suite 600 Seattle, WA 98104; Phone: (206) 296-0290; FAX: (206) 296-1473 (Revised 06/28/01) C:\TEMP\Scotch Broom Control in the Pacific Northwest.doc 1 What are the external constraints and community considerations? Certain sites carry regulatory constraints that will limit the control options. In addition, community effects need to be considered. Burning in certain neighborhoods or during specific weather conditions may not be allowed or desirable. Community opinions about herbicide use should be considered, especially for large sites with long-term control plans where there is a potential for cumulative non -target effects. Specific Methods Available for Scotch Broom Control Biological: There are biological control insects currently being released in Washington, but results are still tentative. The Scotch broom seed weevil shows promising initial results in reducing seed production over time. Mechanical Control Hand -pulling • This method is most appropriate for small infestations or very low -density infestations. • Pulling of medium to large plants is much easier with a Weed Wrench, a solid steel tool for pulling woody plants available from New Tribe at (541) 476-9492 or newtribe ,cdsnet.net. • Even with tools, this method is highly labor-intensive. • In order for hand pulling to work all mature plants in the site need to be pulled so that no new seeds are produced and seedlings need to be pulled as seeds germinate in the cleared area. Motorized weed -whackers or tractor -driven mowers • Cut down plants when stressed, usually between July and September, and cut to the ground. • Older plants are less likely to resprout from cut stems (usually about 20 percent over 5 years old will resprout). • Younger plants are more likely to resprout (about 50 percent). • Mowing alone will not work, it will just result in low -growing but healthy Scotch broom. Chemical Control **FOR CURRENT HERBICIDE RECOMMENDATIONS REFER TO THE LATEST PACIFIC NORTHWEST WEED CONTROL HANDBOOK AVAILABLE FROM THE COOPERATIVE EXTENSION BULLETINS OFFICE AT (509) 335-2857.** Type of Herbicide A non -selective herbicide such as glyphosate will effectively kill Scotch broom but it will also destroy grasses that could compete with new Scotch broom seedlings. Selective herbicides triclopyr and 2,4-D are effective on Scotch broom and will not control grasses but will damage non -target woody and herbaceous plants if not carefully applied. Each herbicide formulation has specific label restrictions and application instructions that must be followed exactly. READ THE LABEL and think about the particular conditions of the site and the possible community effects. Application Method • Foliar spot -spraying on resprouting plants that have been cut previously is quite effective, uses less herbicide than spraying whole plants and has a lower risk of non -target effects. • Foliar spraying requires a thorough wetting of the actively growing plant parts. • Basal bark and cut stump application have also been effective with triclopyr and 2,4-D but these are fairly labor-intensive methods. Wiping concentrated herbicide on a recently cut stump (within moments of cutting) involves more time than foliar spraying but is more target -specific and will damage fewer nearby plants. • There are tractor -driven booms that wipe on herbicide. This may be particularly effective on young (2 year old) plants that can not be cut due to resprouting but are high enough above other plants to allow wiping only the Scotch broom plants. King County Noxious Weed Control Program; 201 S. Jackson St. Suite 600 Seattle, WA 98104; Phone: (206) 296-0290; FAX: (206) 296-1473 (Revised 06/28/01) C:\TEMP\Scotch Broom Control in the Pacific Northwest.doc 2 Timing of Application • Glyphosate should be applied to actively growing plants in the spring. • Triclopyr and 2,4-D can be applied any time the plants are actively growing. Basal bark application is effective from February to November. Prescribed Burning Considerations • Burning can be highly cost-effective if the area can be safely isolated and if special permits are not required for burning in the area. However, there can be costs involved when these conditions are not met. • Burning requires a particular set of conditions (weather, wind directions, air quality controls, burn bans) that are not met every year and so some years a backup method must be used. • There are community effects of large-scale burning that need to be considered. • Burning stimulates seed germination. This helps flush out the seed bank more quickly but it also makes it imperative that effective follow-up be done within three years. Otherwise, the burning may actually increase the infestation instead of reducing it. Timing • There are two seasons for burning: fall and spring. • Spring burning is cooler, slower, less effective but also easier to control. • Fall burning is hotter and faster. It mimics Native American burning methods that were common on Northwest prairies and is normally more effective. However, the fall fires are usually harder to control. Possible Control Plan for a Mature Scotch Broom Infestation Initial Treatment Cut mature plants close to the ground during the summer (July to September) or burn plants in the spring or the fall depending on weather conditions. 1st Year Cut missed mature plants to the ground and spot spray new seedlings and resprouting plants. New seedlings will typically be clustered around the areas where older plants were removed. In the fall, it may be appropriate to revegetate with trees or shrubs to compete with seedlings and create shade. 2nd Year Use a combination of pulling young plants and foliar spraying young and resprouting plants, depending on work force and financial resources. Cutting plants is not recommended since young plants are likely to resprout. 3' 4' and 5' Years Any plants that have survived three years will be ready to flower and so these should be pulled or cut down. Continue spot spraying new seedlings and resprouting plants or hand -pull if possible. If many mature plants are left, consider doing another burn if conditions permit. 6tt' Year and Beyond Plants over 5 years old can be cut down to the ground. After 6 years, it is likely that many sites will be relatively free of Scotch broom if the control methods are carried out thoroughly and persistently. Watch for new plants and pull or spray as soon as possible. King County Noxious Weed Control Program; 201 S. Jackson St. Suite 600 Seattle, WA 98104; Phone: (206) 296-0290; FAX: (206) 296-1473 (Revised 06/28/01) C:\TEMP\Scotch Broom Control in the Pacific Northwest.doc 3 Words of Advice Be adaptive. If one method isn't possible (such as burning due to weather conditions) have a back-up plan. If the Scotch broom doesn't respond to one method, try a different method, change the timing or modify the technique. Be persistent. Any flowers that go to seed will prolong the infestation problem. When plants become mature, they need to be removed or controlled before they go to seed. Volunteer pulls done once a season are generally not thorough enough to control Scotch broom. Be smart. Combine methods intelligently. Pay attention to seasonal timing and to unexpected results. Different methods will bring variable results depending on site conditions, soil, water, competing vegetation, disturbance and the skill of the crew. Removing one weed opens up the site to new weeds, so be ready to respond to new infestations. Be forward thinking. Think about the long-term health of the site. Overuse of herbicides and fertilizer can harm the soil organisms needed for a healthy soil. Revegetation with native plants adapted to the site conditions will reduce re -infestation by Scotch broom and other weeds. However, revegetation can limit control options since care needs to be taken not to damage young plants. It is probably better to re - vegetate after the second control year. Always consider the long-term goals for the site and the community. For further information contact the King County Noxious Weed Control Program at (206) 296-0290. King County Noxious Weed Control Program; 201 S. Jackson St. Suite 600 Seattle, WA 98104; Phone: (206) 296-0290; FAX: (206) 296-1473 (Revised 06/28/O1) CATEMP\Scotch Broom Control in the Pacific Northwest.doc 4 Wha _ s a noxious weed? Noxious weeds are non-native plants that have been introduced to Washington through human actions. Because of their aggressive growth and lack of natural enemies in the state, these species can be highly destructive, competitive or difficult to control. Noxious weeds are everybody's problem. Each year, these plants cost Washington millions of dollars. Noxious weeds result in losses estimated at 24% of Washington's gross agricultural product. In addition, introduced species are the second leading cause of reductions in biological diversity. These exotic species not only reduce crop yields and destroy native plant and animal habitat; they can damage recreational opportunities, clog waterways, lower land values, and poison humans and livestock. Does the law require weed control? Washington's weed law (RCW 17.10) mandates the control of many weed species. "Control" is defined in WAC M-750 as the prevention of all seed production. Each year, a list of noxious weeds is developed. The complete weed list (found in WAC 16-750) encompasses three different categories of weeds: Class A weeds are non-native species with a limited distribution in Washington. Preventing new infestations and eradicating existing infestations is the highest priority. Class B weeds are non-native species that are presently limited to portions of the state. Class B species are designated for control in regions where they are not yet widespread. Preventing infestations in these areas is a high priority. In regions where a Class B species is already abundant, control is decided at the local level, with containment as the primary goal. Class C weeds are otl in -native weeds found in Washington. Many of these species are widespread in the state. Long-term programs of suppression and control are a local option, depending upon local threats and the feasibility of control in local areas. Who administers the weed law? RCW 17.10 also establishes a program for administering the weed law. Education, coordination, and enforcement activities are carried out by three groups: Washington State Noxious Weed Control Board Washington's weed program is coordinated through the Washington State Noxious Weed Control Board. The State Weed Board's mission is to serve as responsible stewards of Washington's land and resources by protecting and preserving it from the degrading impact of exotic, invasive noxious weeds. The state board pursues this mission by: • Increasing public awareness of weed problems through education • Coordinating and assisting county weed boards with their educational and weed control efforts • Assembling and distributing information on Washington's weeds • Developing statewide integrated pest management plans for specific species • Promoting cooperation and compliance from state and federal land agencies and tribal governments • Developing the state weed list County Noxious Weed Control Boar, RCW 17.10 allows for the activation of a weed board in each county. County weed programs provide many services to the communities they serve, including: • Conducting ongoing weed surveys to detect new infestations before they spread • Educating landowners to achieve voluntary compliance with the state weed law • Providing the public with technical information on weeds and control options • Setting local weed control priorities • Carrying out weed enforcement actions as needed to protect resources Weed districts, which were established under Washington's first weed laws, RCW 17.04 and 17.06, still operate in some regions of the state. These districts are responsible for weed control in small areas, typically the size of irrigation districts. Weed districts have responsibilities and activities similar to county weed boards. Washington Slate Department of Agriculture The Washington State Department of Agriculture also plays a role in the state weed program by: • Performing any necessary enforcement activities in counties without activated weed boards • Negotiating and ruling in intercounty disputes can reduce crop yields, destroy native plant and animal habitat, damage recreational opportunities, clog water- ways, lower land values and poison humans and livestock. • . To help protect the state's resources, the Washington State Noxious Weed Control Board adopts a State Noxious Weed List each year. This list categorizes weeds into three major classes - A, B and C - according to the seriousness of the threat they pose to the state or a region of the state. Class A Weeds Class A'weeds are non-native species with a limited distribution in Washington. Preventing new infestations and eradicating existing infestations is the highest priority. Eradication is required by law. Common name bean -caper, Syrian blueweed, Texas broom, Spanish buffalobur clary, meadow cordgrass, salt meadow crupina, common flax, spurge four o'clock, wild goatsrue hawkweed, yellow devil hogweed, giant hydrilla johnsongrass knapweed, bighead knapweed, Vochin lawnweed mustard, garlic nightshade, silverleaf Scientific name Zygophyllum fabago Helianthus ciliaris Spartium junceum Solanum rostratum Salvia pratensis Spartina patens Crupina vulgaris Thymelaea passerina Mirabilis nyctaginea Galega ofcinalis Hieracium Jloribundum Heracleum mantegazzianum Hydrilla verticillata Sorghum halepense Centaurea macrocephala Centaurea nigreseens Soliva sessilis Alliaria petiolata Solanum elaeagnifolium Class A Weeds (Continued) sage, clary Salvia sclarea sage, Mediterranean Salvia aethiopis saltcedar Tamarix ramosissima spurge, eggleaf Euphorbia oblongata starthistle, purple Centaurea calcitrapa thistle, Italian Carduus pycnocephalus thistle, milk thistle, slenderflower velvetleaf woad, dyers Class B Weeds Silybum marianum Carduus tenuiJlorus Abutilon theophrasti Isatis tinctoria Class B weeds are non-native species presently limited to portions of the state. Class B species are designated for control in regions where they are not yet widespread. Preventing infestations in these areas is a high priority. In regions where a Class B species is already abundant, control is decided at the local level, with containment as the primary goal. Common name blackgrass blueweed broom, Scotch bryony, white bugloss, annual bugloss, common camelthorn carrot, wild catsear, common chervil, wild cinquefoil, sulfur cordgrass, common cordgrass, smooth daisy, oxeye elodea, Brazilian fanwort fieldcress, Austrian gorse hawkweed, mouseear hawkweed, orange Scientific name Alopeeurus myosuroides Echium vulgare Cytisus scoparius Bryonia alba Anchusa arvensis Anchusa ofcinalis Alhagi maurorum Daucus carota Hypochaeris radicata Anthriscus sylvestris Potentilla recta Spartina anglica Spartina alterniflora Leueanthemum vulgare Egeria densa Cabomba caroliniana Rorippa austriaca Ulez europaeus Hieracium pilosella Hieracium aurantiacum Class B Weeds (Continued) hawkweed, polar Hieracium atratum hawkweed, smooth Hieracium laevigatum hawkweed, yellow Hieracium caespitosum hedgeparsley Torilis arvensis helmet, policeman's Impatiens glandulifera herb Robert Geranium robertianum houndstongue Cynoglossum oJJicinale indigobush Amorpha fruticosa knapweed, black knapweeed, brown knapweed, diffuse knapweed, meadow knapweed, Russian knapweed, spotted knotweed, giant knotweed, Japanese kochia lepyrodiclis loosestrife, garden loosestrife, purple loosestrife, wand nutsedge, yellow oxtongue, hawkweed parrotfeather pepperweed, perennial primrose, water puncturevine --> ragwort, tansy rocket, garden sandbur, longspine skeletonweed, rush snapdragon, dwarf sowthistle, perennial spurge, leafy starthistle, yellow swainsonpea thistle, musk thistle, plumeless thistle, Scotch toadflax, Dalmatian watermilfoil, Eurasian Centaurea nigra Centaureajacea Centaurea diusa Centaureajacea x nigra Acroptilon repens Centaurea biebersteinii Polygonum sachalinense Polygonum cuspidatum Kochia scoparia Lepyrodiclis holosteoides Lysimachia vulgaris Lythrum salicaria Lythrum virgatum Cyperus eseulentus Picris hieracioides Myriophyllum aquaticum Lepidium latifolium Ludwigia hexapetala Tribulus terrestris Senecio jacobaea Eruca vesicaria ssp. sativa Cenchrus longispinus Chondrilla juncea Chaenorrhinum minus Sonchus arvensis ssp. arvensis Euphorbia esula _ Centaurea solstitialis Sphaerophysa salsula Carduus nutans Carduus acanthoides Onopordum acanthium Linaria dalmatica ssp. dalmatica Myriophyllum spicatum HrA'E 15 7hE %vsy 9A(,w& 7 I/\► fb- IF you hA Ate( c WEED QuG-S7c,,S urn 4<,-7 C C/Yt� enX.WScro) NE IS 7fi& wt�g-0 SPECIA LAS-7 ,n, 101J2 Ate} 66(lo Luc,,v WR W wj� i,,,o INoxious oy srunskill Weed Specialist KING COUNTY oxiousWeed Control Program esource Lands and Open Space Section ater and Land Resources Division epartment ofNatural Resources 01 SouthJackson Street, Suite 600 attle, WA 98104-3855 206) 296-0290 FAX (206) 296-0192 �-mail: noxious.weeds@metrokc.gov rl e AP3 •evolt le future ,f music is )nline, D1 I aircraft larine$, A2 c •s MONDAY ' August 28, 2000 County at war Big bathers Twins lead Tahoma's offense this year, B1- Kicker cut Hawks' Peterson won't be back, B6 9N TODAY High 701 Low 48° Partly cloudy and dry. Details on back page ,° rt th, 4 ' :;a wo w I `°fll` Weed patrol busy killing noxious plants �5 I County employee Jim Bjorgen sprays herbicide on tansy ragwort, a noxious weed, in the ditches of rural Enumclaw. • •, INSIDE 1 KentSci il01CIS , ICtleaLanders D4 Ann 0d4na r 7 By Dean A. Radford Journal Reporter It's too early to say that the nasty tansy ragwort is under control, but armed with revenue from a con- troversial w,eed tax, the county is waging a success- ful war against the noxious weed that can kill livestock. The tax, approved two years ago this summer by the Metropolitan King County Council; assesses each parcel of land 85 Cents, plus 9 cents per acre, to fight noxious weeds... . The most prevalent nox- ious weeds in South King County are the tansy rag- wort, the spotted and dif- fuse knapweed, the Dalmatia toadflax and the giant hogweed. But it's the tansy rag- wort that left unchecked threatens- to overtake pas- tureland, with potentially life -threatening effects. The weed, an exotic invader from Europe first spotted near American seaports in the 'early 1900s, poisons livestock. It's that time of year Tansy ragwort is in its peak flowering season, and county officials say now Is the time to kill it before it goes to seed. A large plant can produce 150,000 seeds, .which can lay dormant in the soil for 15 years. "This is a critical time to deal with it," said Jane Wentworth, coordinator of the county's noxious weed program. Mowing will sim- ply allow the seeds to spread. She suggests cut- ting off the flowers, then putting them in the garbage in plastic bags. Wentworth's inspectors scour the countryside for noxious weeds, stopping to talk to property owners about the problem or send- ing letters if an infestation is found. Property owners — wmsouthcounty journal.com IIII II IIIII II11111111111111111 Tansy ragwort is deadly to live- stock. Inside: County switches to a more toxic but less 'mobile' herbicide, A4 including the county — are required to pull or spray the weeds with a herbicide. If not, the county will do the work and bill the property owner. So far, despite sending out hundreds of letters this year, Wentworth has not taken. any,enforcement action! The 'county's own roads division came close, but it finally sprayed a patch of weeds on Vashon Island. Residents invariably ask Wentworth to explain what the county is doing to rid its own roadsides of nox- ious weeds, which easily reproduce and are difficult to control. The answer? A lot more, now that her program has eight inspectors. About 200 letters have gone to the King County Department of Transportation, which is responsible for maintain- ing county road rights of way. Resident does his part Auburn Lea Hill resident Bob Pfaff got a letter from the county after an inspec- tor spotted tansy ragwort growing on'20 acres he owns off 124th Avenue Southeast between Kent and Auburn. Two men he hired spent an entire day pulling the weed. See WEEDS, A4 Girl abandoned bv mother on coun*ty sops using herbicide .hat migra.es easily But new poison used to kill weeds is more toxic By Dean A. Radford Journal Reporter The county stopped using a weed -killing herbicide in June that washes easily into ditches, and potentially into streams and lakes, replacing it with one that's more toxic to fish, but less mobile. Herbicides, are just one tool available to county road crews to eradicate noxious weeds in road rights of way. They also pull weeds andunleash bugs that dine on their leaves. But death by herbicide is often more certain. Property owners are required by law to kill noxious weeds, but the law doesn't man- date that they use herbicides. The county, however, is looking at ways to reduce its reliance on herbicides, or find less -toxic ones, to help protect the environment — and endangered salmon. On June 30, the county's road services division stopped using the herbicide Transline, effective in killing the noxious tansy rag- wort weed, because it washes eas- ily from an application site. The spray crews are now using Garlon 4, which is more toxic to fish than Transline, but is more likely to stay put. "Working along roadways, .the potential is that when it rains if the material is mobile; it can move into the ditches with thatwater and eventually get into a stream, 'I said Philip Dickey, a scientist with the Washington Toxics Coalition. "I think it's important, if you are going to have to use a herbicide, then you like to use something that stays at the site of application and not move off site," he said. Dickey evaluated the use of sev- eral herbicides for the city of Seattle in a joint project with Washington State University and Seattle Tilth. The result was creation of three tiers of herbicides, whose use is regulated by their effect on health and the environment and other fac- tors, such as mobility. The county adopted the same guidelines.. "The policy that the city and the county now have is designed to minimize chemical use and ,to try to find the least ,hazardous chemicals to use," Pickey said. But he adds that herbicides are "the least desirable kind of con- trol. No herbicide is perfect. Some are less hazardous than others." The Tier 1 herbicides, such as Transline, require special permis- sion to use. Garlon is a Tier 2 her- bicide and is now used almost exclusively by the county to kill noxious weeds. County crews spray directly on the offending weeds, rather than broadcasting the spray over wide areas. Dickey didn't test the effec- tiveness of the herbicides; it's up to the agencies to decide which ones work best for them, he said. Jim Bjorgen, one of the coun- ty's two vegetation specialists, said the county has had "good luck" with Transline, but he says the ,Garlon 4 seems to take longer to kill the weeds. The county is also experiment ing with alternatives to herbicides said Bjorgen, who is also on th( board of directors of th( Washington State Wee( Association. This experimentation includes'the use of caterpillar-lik( insects to defoliate weeds in eas Kent, Renton, Vashon Island an( Redmond. Jane Wentworth, coordinator o the county's noxious weed pro gram, said there is a place for her bicides. "If they are used properly they are safe to use," she said adding it's unlikely the herbicide, will get into salmon habitat. 'Her program also educates th( public about the use of chemica products. Weeds: County estimates it will find 3,000 infested sites CONTINUED FROM Al Pfaff plans to dry the pile of weeds, then bury it under four feet of topsoil. "We won't see any of them," he said. Pfaff doesn't mind doing his part to kill the weeds, which he sees as a civic responsibility. "What I am concerned about is that I have taken care of it, but we all have to take care of it," he said. Pfaff thinks.the weeds got their start along 124th Avenue Southeast — on county right of way. "Initially, that stuff came from the county ditches," he said. "I know that because of the pre- kailing winds." The same weed inspector who sent a letter to Pfaff also notified the county,roads department on July ;20 that tansy ragwort. was growing along 124th Avenue Southeast not far from Pfaff s 20 acres, along 132nd Avenue Southeast and along Southeast 304th Street. iergency landing ngine parts fall off 747 ies ter - the ;ht, .ed ed ies les r:20 led Try )ffi- cer ii-ith the Federal Aviation Administration. 'wMe pilot did have to come back around because of engine problems," and dumped fuel over the ocean to reduce the plane's landing weight, he said. - Three parts of the 747 were found at nearby Dockweiler State Beach,.;police Officer Don Cox said. TV. news reports showed a cylindrical piece of metal several feet long and about 5 feet in diam- eter. The piece is believed to be an exhaust nozzle , from one of the Fli f's four engines. sty CUAIUFS More information More details on common noxious weeds are available online at the county's Web site at ' www.rhetrokc.gov. Click on noxious weeds under the header, Environment. The roadsides were sprayed with a herbicide the next day, according to county mainte nance records. , . Two county employees work nearly full time during the spring and summer to spray herbicides on noxious weeds or pull them by hand, according to Steve Wilson, superintendent of spe- cial operations for the county ,roads division. This spring and summer the crew has responded to nearly 400 locations where noxious weeds were spotted. Wilson has never seen such demand., His own crew, and other mainte- nance workers, also frequently spot weed infestations. Born Sept. 3, 1937, in New Rochelle, N.Y., she lived in Auburn for 12 years. She married Robert H. Sanders on Nov. 18, 1968. A homemaker, Mrs. Sanders loved animals and enjoyed col- lecting stuffed animals. Survivors include her hus- band; son Drew Sanders of Auburn; daughter Deanna Hall of )✓astern Washington; brother George "Beaton Jr. and sister. Barbara Tomlinson, both of i BartOia, Texas; and four grand- children. A memorial service will be at 3 p.m, Wednesday at Yahn and Son Funeral Home in Auburn. Memorials may be sent to the Auburn Veteran's Memorial Fund, P.O. Box L, Auburn, WA POLICE JOURNAL STAFF REPORTS About 850 weed sites were found in 1996, when the coun- ty's noxious weed program began. This year,, the county is on pace to find more than 3,000 sites, Wentworth said. "We know of a lot more tansy ragwort, because we are focus- ing more attention on it," she said. "I don't think there is more out there, but we are looking for it more." The so-called weed tax will raise about $500,000 each year. With the money Wentworth hired two additional inspectors. The eight inspectors work seven or eight months during the entire weed season, about double pre- vious work schedules. The inspectors have mapped weed sited in about two-thirds of the county. Tansy ragwort is most prevalent in South King County,' Vashon island and in pockets on the Eastside, includ- ing Woodinville. The most vocal opponent of the, weed tax is Kent Pullen, whose 9th .County Council AUBURN ELECTRONICS STOLEN: Someone broke into a Weblink Wireless tower shed between 4 p.m. Thursday and 11 a.m. Friday and sole $3,376 worth of. electronic equipment. The break-in also caused $1,260 dam- age. Police have no suspects. GUN BURGLARY: A 22-year-old Auburn man reported that a shotgun was stolen between 6:30 p.m. Thursday and 4 p.m. Friday from his apartment in the 2400 block of I Street Northwest. There are no suspects. ASSAULT: Two men were arrested at 12:35 a.m. Saturday after they assaulted a 53-year- old Auburn man in the 900 block of LNinth Street Northeast. The man was not seriously injured and declined medical attention. KENT ATV STOLEN: Burglars. took a' $300 television between 11 p.m. Friday and 7 am. Saturday from a house in the 3300 block of South.271st Street —The home- owner, a'71-year-old Kent man, reported ihati although the bur- glars looked in closets and bed- rooms, they ;did not touch his wife's purse. on the kitchen table. They did $10 damage to a window. CAR FOUND: A ca gtolen between 5:15 pan. a l- , p.m Thursday from the 200 blockof North Washington Avenue was found at 3:10 p.m. Friday in. the 400 block of the same street. Its window was, smashed, fender NANES & FACES 1, JOURNAL STAFF REPORTS Honors ■ Emily Stroup, a member of F. Weidenbener J. Dement Brownie Girl Scout Troop 238 of Totem Girl Scout Council; was ; Champion 'Working Cow Horse presented. the "God and Me" Title at the American Quarter award on July 30 at Cornerstone ° Horse Youth Association World United Methodist Church by Rev. Championship Show held Aug. L. Daniel Foster.. This religious 4-12 in Fort Worth, Texas. award program requires both Military Bible study and service projects. ■ Navy Petty Officer 1st ■ Michelle R. Goulet of Kent Class Francis J. Weidenbener, and her horse,. Hollys Tucker son of Francis and Karen Bar, won the Reserve World Weidenbener of Maple Valley, District includes some of the prime weed infestations. He calls the county's program the "Weed Gestapo." He continues to get letters and a -mails from constituents who say the county is ignoring its own weed problem, while mailing threatening letters to them. He thinks the effort to eradi- cate the weeds is going "very poorly. "My observation is that there are more weeds growing along county roads than there were two years ago," he said. But Wentworth thinks progress is being made, even though she'll need a year or two more of inspections to'get a com- plete handle on the problem. , "Hopefully we will have a Manageable level of weeds," she said. Dean Rad ford covers King County. He can be reached at dean. rad ford@southcountyjour nal.com or 253-8.72-6719. dented and -ignition punched. Police have no suspects. RENTON BURGLARY INTERRUPTED: A 32- year-old Renton woman woke --Up' at 12:12 p:m Thu'rsday when' she heard an intruder. in her apartment, located in the 500 block of Stevens Avenue Southwest. She said, "Excuse me, excuse me," but the man -ran out the front door, The intruder is described as black, 25 years old, 5 feet 7 inches tall, 160 pounds, with a shaved head and brown eyes. He was wearing gray jogging pants, running shoes .and a .white tank top, which he used to open the front door as he was fleeing to avoid leaving fingerprints. But police found fingerprints and a partial palm print left by the man on a windowsill. was aboard the San Diego -based destroyer USS Hewitt when it Arrived in Seattle for the Seafair celebration in August. ■''Army Sgt. Joe tta Dement, daughter of Cletus and Lynda Novinski of Renton, is a member of the Army Marksmanship Unit. The pre- mier shooting team will com- peteAn the Summer. Olympic Games in Sydney, Australia. Enlistments. ■ Maurice R. Horstead, son of Clarence E. Horstead of Federal Way, enlisted in the Army's Delayed Entry Program. He willleave for basic training at Fort Jackson, Columbia, S.C. on Aug. 30. ; The most vocal opponent of the weed tax is Kent Pullen., whose 9th County Council District includes some of the prime weed infestations. He calls the county's program the `Weed Gestapo.' TODAY'S UPDATE THINGS TO SEE AND DO IN SOUTH COUNTY Rhododendron Species Botanical Garden will offer guided tours from 11 a.m. to 4 p.m. today at Weyerhaeuser Corporate Headquarters, 2525 S. 336th St., Federal Way. The Pond Garden is alive with frogs, sala manders and birds. Admission is $3.50 for adults, $2.50 for students and seniors, and free for ages 12 and younger. Call 253-661-9377 for more infor- mation. ADULTS "Salt Dancers" by Arousal Hegi wi be discussed by the Between the Covers Afternoon Book Group from 1-2:30 p.m. today a, Federal Way 320th Library, 84E S. 320th St. Call 253-839-0257 ARTS AND ENTERTAINMENT "Faces of Auburn," snapshots of Auburn faces past and present, and handmade quilts will be dis played from 8 a.m. to 5 p.m. today at Auburn Arts Commission Gallery, 25 W. Main St., Auburn City Hall. Call 253- 931-3043. Photographs of landscapes, cityscapes and inanimate por- traits by Polly Purvis will be displayed from 8 a.m. to 5 p.m. today at Enumclaw Arts Commission Gallery, Enumclaw City Hall,1339 Griffin Ave. Call 360-825-3594. 06/29/2001 10:32 FAX 2538543350 Fac111t3 Maint Z 01 n JAPMC Facility Maintenance Contractors 1018 West James Street • Kent, WA 98032 (253) 854-4000 • Fax (253) 854-3350 • www.fmcorp.net FAX TRANSMITTAL DATE: a2 0 PHONE: #: (253) 8;4-4000 FROM: FACIVII-1 MAINTENANCE CONTRACTORS NAME:—� 6 F-} ►�1(� w — FAY#: tj�31$54-3350 NIiLIIII=.R OF F':IL(:ES SENT (W/O COVER SHED -.I'): I TO: 1)EPT: F A `C #: NI ESS.1G1. r If any of thc�c pa es e nut le2.iblc ur you do not receive all of the pages, please call (253) 854-4000. a a O O io0�� L� PC 0 06/29/2001 10:32 FAX 2538543350 Facility Maint Z 02 Facility Maintenance Contractors 1018 West James Street • Kent, WA 98032 (253) 854-4000 • Fax (253) 854-3350 • www.fmcorp.net PROPOSAL TO: City of Renton Date: 6/29/01 Utility System Division -Surface Water PHONE: (425) 430-70205 1055 South Grady Way FAX: (425) 430-7241 Renton. WA 98055 Attu: Gary M. Schimek, PE PROJECT: Lower Cedar River Flood Control Levees & Floodwalls We hereby submit estimate for Vegetation control per the above site: Ve etation control • Tag all Mitigation plantings that have are existing in the areas of work for future edit for possible replanting • Work with Department of Fishers and any other agencies on trees and other vegetation to remain for shade and proper habit • Flush cut all other unwanted vegetation as per walkthrough and restrict any debris getting into the river • Remove all debris from the site and take to state approved landfall • Leave site in neat and clean condition ready for inspection Project total: $14,980.00 The above prices do not include the following: • Washington State Sales Tax • Permirs and fees by all State and Fedcral agencies • Bid bonds and performance bonds • Replanting Mitigation plantings JoNi C. Higgen La dscape Division Manager Price good for IRO days Cc- Mail Filc Ttal '6"s 3�_h ad✓o10— ' FLOOD RESPONSE EMERGENCY PHONE NUMBERS CONTACT PERSON/ AGENCY CITY PHONE NUMBER TYPE City of Renton Emergency Operations Center (EOC) 277-6185 277-6191, Office 277-6184 Ray Barilleaux, EOC Coordinator 235-2622 Office 255-7992 Home Jay Covington 277-6224 Office 850-3127 Home 999-6008 Cell Gail Reed, Airport Manager 235-2591 865-9704 Office Gregg Zimmerman Home 7-- - B H�.•.,� 277-621 1 Office a 868-8409 Home 919-0242 Cellular John Thompson _ 235-2585 Office I ( 994-43 79 Pager 1 } , 5 919-0102 Cellular City Maintenance Services Division 235-2566 Office 277-2476 Fax Police Department Dispatch 235-2600 Office Ron Straka 277-5548 Office n�;ls� �t��f�.,►�.,►� wK ���-l0/90 919-4281 838-6866 Cellular t'g 53`�'f336 235-2541 Home Fax BOEING Emergency Information Center 234-2434 Office SEATTLE WATER DEPARTMENT Water Department Operations Center George Schnider 386-1818, 386-1824 Office 386-4041 Office 399-0201 Cellular 982-4165 Pager KING COUNTY Flood Warning Center 296-4535 Office Recorded gage readings 296-8200 Recording phlist.doc 1-800-945-9263 Recording -2- 2 8 - 1170 I Cedar River Correlation to Airport Gauge Cedar River Renton Gauge Landsburg Gauge KC Flood Phase River Ground Depth Elevation Stage Flow Stage Flow s Renton Landsbur ___ . Mr. S 3 2 I 2 21.6 Pb"C IV Pn yrur--' Phase Il Phuel LmAsbarg read 6 ho m prior to Renton Sheetl J February 1996 Flood Event r . Stage Flow Relationship between Cedar River at Landsberg and Bronson Bridge 6 hours Landsburg later Renton @ Bronson Bridge Date / Time Stage I Flow Date / Time Stage Flow 2/5/96 20:00:00 2.031 746 2/6/96 2:00:00 10.49 1190 2/6/96 0:00:00 2.52 1090 2/6/96 6:00:00 10.87 1500 2/6/9613:30:00 3.00 1470 216/9619:30.:00 11.53 2080 216/96 16:30:00 3.29 1730 2/6/96 22:30:00 11.97 2500 217/96 16:15:00 3.50 1930 217196 22:15:00 12.12 2650 2/7/96 3:00:00 4.01 2460 2/7/96 9:00:00 12.46 3010 2/8/96 2:45:00 4.21 2670 2/8/96 8:45:00 13.83 4600 2/8/96 4:30:00 4.51 3000 2/8/96 10:30:00 14.15 5000 2/8/96 7:30:00 4.99 3530 2/8/96 13:30:00 14.62 5620 2/8/9611:00:00 5.51 4150 2/8/9617:00:00 14.94 6060 2/8/9612:15:00 5.59 4240 2/8/9618:15:00 15.14 6330 2/8/96 14:30.00 6.01 4750 2/8/96 20:30:00 15.53 7010 2/8/96 17:00:00 6.49 5350 2/8/96 23:00:00 15.69 7120 219/96 0:15:00 6.78 5720 1 1 2/9/96 6:15,00 15.98 7936 Flow vs Stage At Landsburg 8.00 .. 6.00 00 2-004 0.00 0 0 0 0 �0p ^0^ 0 0 0 0 O N N 0 0 0 ti (h N N c) (`7 V' Stage and flow for Bronson Bridge 20.00 - 15.00.00 10 1500 2500 3010 5000 6060 7010 7936 Page 1 Sh, Chart 7 H H. U611A 17.00 15.00 12,00 Stage at Lanclsburg vs Stage at Bronson 6 hours later 5�) 41 -4 Ln p C) (p Ln 0 PD O 0 0 Landsburg Stage Page 1 CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS MEMORANDUM DATE: December 20, 1996 TO: Gregg Zimmerman FROM: Ron Straka, Gail Reed SUBJECT: RENTON MUNICIPAL AIRPORT RESPONSE PLAN The following table lists the actions to be taken by the City during a storm event that result in flooding on the Airport: FLOOD ACTIONS TO BE TAKEN BY THE CITY WHO WARNING PHASE Pre -Flood • Sandbags are stockpiled for use in protecting City Airport Airport owned facilities (Non -Directional Beacon & Storm Drains). Phase I • Establish communications with Airport, Boeing and All Landsburg: Seattle Water Department. Communicate information Stage: 3.3 regarding river conditions, reservoir level, weather Flow: 1,750 cfs forecast. Renton (6 hrs • Airport tenants are contacted and notified of current river later*): conditions and forecasted conditions. Airport Stage: 11.4 Flow: 2,000 cfs Phase II Continue communications with Airport, Boeing and All Landsburg: Seattle Water Department. Communicate information Stage: 4.2 regarding river conditions, reservoir level, weather Flow: 2,652 cfs forecast and available safe airplane parking areas on the Airport. Renton (6 hrs later*): Airport tenants are contacted and notified of current river Airport Stage: 13 conditions and forecasted conditions. The movement of Flow: 3,200 cfs airplanes to a designated safe locations on the Airport is recommended. FLOOD ACTIONS TO BE TAKEN BY THE CITY WHO WARNING PHASE Phase II Landsburg: Stage: 4.2 Flow: 2,652 cfs Renton (6 hrs later*): Stage: 13 Flow: 3,200 cfs • City owned Airport facilities (Non -Directional Beacon & storm drains) that can be flood proofed are flood proofed. Condition of previously flood proofed facilities are checked to ensure that they are in good condition • Flood proofing measures are take at Carco Theater and City Hall (Sandbags/bladders are install, stormlines/floor drains plugged). Airport Facilities & Maintenance Crews Phase III • Continue communications with Airport, Boeing and All Landsburg: Seattle Water Department. Communicate information Stage: 5.0 regarding river conditions, reservoir level, weather Flow: 3,480 cfs forecast and available safe airplane parking areas on the Airport. Renton (6 hrs later*): • Airport tenants are contacted and notified of current river Stage: 15 conditions and forecasted conditions. The movement of Airport Flow: 5,600 cfs airplanes to a designated safe locations on the Airport is recommended. • Riviera Apartments are notified of flood conditions. EOC • Start Monitoring conditions along the Cedar River at critical locations (Senior Center, Senior Housing, City Bridges, City Hall, Community Center, Riviera City Crews/Staff Apartments, Maplewood Roadside Park Bridge, Cedar River Summer Homes Site (private homes upstream of Roadside Park), SR-169 Bridge and Maplewood Golf Course. Phase IV Continue communications with Airport, Boeing and All Landsburg: Seattle Water Department. Communicate information Stage: 5.6 regarding river conditions, reservoir level, weather Flow: 4,200 cfs forecast and available safe airplane parking space on the Airport. Renton (6 hrs later*): • Continue communications with Airport tenants regarding Airport Stage: 15.4 current river conditions, forecasted conditions and future Flow: 6,704 cfs aircraft movements. • City Bridges are inspected and monitored. Logan Ave. City Crews N. bridge closed when flow approach 7500 cfs to 8,000 cfs. Other bridge closures implemented as flow increases above 8,000 cfs and when conditions require closure. 12/20/96 FLOOD ACTIONS TO BE TAKEN BY THE CITY WHO WARNING PHASE Phase IV • Log removal from the Houser Bridge to be implemented City Crews Landsburg: depending upon conditions, when flows exceed 7,500 Stage: 5.6 cfs. Flow: 4,200 cfs • Continue Monitoring conditions along the Cedar River at City Crews/Staff Renton (6 hrs critical locations (Senior Center, Senior Housing, City EOC later*): Bridges, City Hall, Community Center, Riviera Stage: 15.4 Apartments, Maplewood Roadside Park Bridge, Cedar Flow: 6,704 cfs River Summer Homes Site (private homes upstream of Roadside Park), SR-169 Bridge and Maplewood Golf. Depending on conditions, recommend evacuation of people. Post Flood • Assess the extent of damages and develop scope of clean- Airport/Boeing Response up efforts. • Identify when clean-up efforts can start. Coordinate clean-up efforts with Boeing. Hire contractors to start Airport/Boeing and complete airport clean-up. • Continue communications with Airport tenants regarding current river conditions and the need for aircraft Airport movement from designated safe areas back to tenant spaces. * Estimated resultant flow at Renton 6-hours after flood warning is issued at Landsburg based upon the flow record for the winter of 1996 floods. AIRPORT.DOC/rjs 12/20/96 } USGS Gage Access Procedure for "Terminal" Application A �; < 1. From the Main Menu Icons pick `Terminal' (any modem software). 2. If it has not been previously logged in you will be prompted for a password. The password is the same as your network password. If you are logged in under Mike Dotsons machine then the password is TRANS 123. 3. If the `Terminal' Program has previously been accessed it will not prompt for a password. 4. Pick `file -open' from the menu and selec usgs.trm'' from the items listed. If you want to access the Kent Springbrook Creek gages select `kent.trm'. 5. Select `Phone -Dial' from the screen menu. ram% 6. At the CONNECT 9600 prompt hit +J(ENTER). P' ►'' S 7. At `enter login' type gsg40002.J. 8. At `enter password' type pham4asd.J. 9. At the menu enter selection `1'.J. 10. At * enter 9051758.J /-1-SSUSSo r� � 1->'y�e r 7tv� � ►�i 4X,ncFi� lEsWt� Nr3 �c c Leo �zSeZ16 0,� �S�T1Z,oKp- ���r� SIrP 7 11. At `OK', type login m-Aduts6n.J bwr -�- 12. At `Password' type ce�D.J (note: password is case sensitive) 13. At `OK' type data stations.cedar.J or data stations.green.J 14. Follow instructions for logging out procedure (LO, Q to exit ADAPS) 15. For assisstenc using ADAPS call (during business hours) USGS and ask for Donna Tarver or Dave Wilson. Their number is (206)593-6510. + ( 4_ - I/ = r), , -t- USGS.DOC/ GENERAL CONSTRUCTION COMPANY BOEING SOUTH BR!CGE LIFT PROJECT EMERGENCY PHONE NUMBERS GCC Dennis Bayer 206-784-401 1 Home 206-7M-2344 Cell 206-917-1938 Pager 206-655-5436 Work Dennis Crow 206-367 2376 Home 425-210-8800 Cell 425 514-6244 Pager �r 206-918-4077 Pager 4c Ed Kellison 425-T74-8883 Horne 206-730-6069 Cell Todd Wile 360.653-0937 Home Dan Enrico 205-726-7928 Home 205-240-9567 Cell Jirr Eustace 253-209-1000 Cell 253-752-6747 Home — Y �➢ Jack Andrew 425-237.6034 Office 206-986-7230 Pager 253-630-2169 Home Hamilton Engineering (Hydraulics Deslan Enaineerl Office 206-244-0952 y� Chris Johnscn 206-282-5002 Home /1 Skillina (Structural Enaineerl Office 206 292-1200 Bob Anderson 206-36"973 Home J ]�- Williams Form fEpoxy / Concrete Accessorlesl Office 206.763-3991 Rocky Smith 253833-7339 Home Evelyn 253-941-6338 Home Jack Oale (Hydraulic EQuipment I Cylinders! Office 206-324-3425 Carlos Aguirre 206-807.8781 Pager Seattle Valve ISwaaelok Fittlnas) Office 425-825-1115 Matt Brockhart 206-919-4032 Cell Goodall IHvdraulk H es Office 253.395-4770 Bob LeBrun 425.778-D583 Home Kipper a Son (Steel Fabdcatorl Office 253.856-2625 Fred Vami 206-713-7828 Cell 206-283-4694 Home $AAS (Hydraulics Conxrl sslonlna) Office 206-695-6400 Mark T. 206-725-9924 208-850-3234 Home Cell 206-996-5522 Pager Pacific Industrial (Toots / Consurnabkrsl Off" 20"82-2100 Sam Jr. 206.793-2462 Pager 253-735-1929 Heme Hertz Eauiprnent (Eauipment Rental) Office 206-241-9255 CMIs 206-940-6566 Ceil Concrete C91irw 0ffk a 206-246-2434 Ted 253-875-9220 Home C I m ry P G 8S1ATESO4P�'�ATTENTION OF REPLY TO Civil Projects Branch DEPARTMENT OF THE ARMY SEATTLE DISTRICT. CORPS OF ENGINEERS P. O. BOX 3755 SEATTLE, WASHINGTON 98124-3755 Christian Munter City of Renton, Surface Water Utility Engineering 1055 S. Grady Way Renton, WA 98055 SUBJECT: Cedar 205 O&M manual, additional copies Chris, RECEIVED AUG 2 6 2004 CITY OF RENTON UTILITY SYSTEMS AUG 2 3 2004 Please find 2 more copies of the O&M manual for the Cedar River 205 project enclosed. If you have any questions, please call me at (206) 764-6978. Sincerely, Timothy M. Shaw, PE Project Manager CENWS-PM-CP Cedar River at Renton Flood Damage Reduction Project Operation and Maintenance Manual July 15, 2004 1 INTRODUCTION 4 1.1 Project Description.......................................................................................................................4 1.2 Authorization................................................................................................................................4 1.3 Location.........................................................................................................................................4 1.4 Project Purpose.............................................................................................................................4 1.5 Construction History ....................................................................................................................5 2 PROJECT COOPERATION AGREEMENT 6 2.1 Responsibility of Local Interests..................................................................................................6 2.2 Failure of Non -Federal Interests to Operate and Maintain......................................................6 3 GENERAL PROCEDURES 7 3.1 Approved Regulations..................................................................................................................7 3.2 General Rules and Procedures.....................................................................................................7 3.3 Duties of the Superintendent........................................................................................................7 3.4 Trespass on Rights-of-way...........................................................................................................7 3.5 Improvements or Alterations.......................................................................................................8 3.6 Annual Report....................................................................................................:..........................8 3.7 Periodic Inspections......................................................................................................................8 3.8 Surveys...........................................................................................................................................9 3.9 Checklists.......................................................................................................................................9 3.10 Sequence of Operations................................................................................................................9 4 OPERATIONS DURING HIGH WATER FLOW 10 4.1 General.........................................................................................................................................10 4.2 Procedures to be followed at Flood Stage.................................................................................10 4.3 New Section Sandbag Locations...............................................................................................10 4.4 Bridge Operation........................................................................................................................11 4.5 Levee Operation..........................................................................................................................12 4.6 Closure Gate Operation..............................................................................................................12 4.7 Emergency Repairs.....................................................................................................................14 4.8 Project Plans................................................................................................................................15 4.9 General Notes on Maintenance..................................................................................................15 4.10 Specific Maintenance Procedures..............................................................................................16 5 REPAIR, REPLACEMENT, AND REHABILITATION 19 5.1 Levee............................................................................................................................................19 5.2 Drainage Structures....................................................................................................................19 5.3 TideFlex Check Valves...............................................................................................................19 6 OUTLINE OF ANNUAL REPORT 20 6.1 General.........................................................................................................................................20 6.2 Earthfill Levee.............................................................................................................................20 6.3 River Channel..............................................................................................................................20 6.4 South Boeing Bridge...................................................................................................................20 6.5 Closure Gates..............................................................................................................................20 6.6 Culvert Tideflex Valve................................................................................................................20 6.7 Landscaping.................................................................................................................................20 6.8 Conditions During Flood Period................................................................................................20 Appendix A: Project Cooperation Agreement Appendix B: Flood Control Regulations Appendix C: Agreement between The City of Renton and The Boeing Company Appendix D: the WEST Report Appendix E: As -Built Drawings for Levees and Floodwalls, dated 98DEC03 1 Introduction 1.1 Project Description The project consists of levees and floodwalls along both banks of the river, a section of PCC curb wall, and a channel deepened by excavation. Levee sections are minimum 8'-0" wide on top, with 2H:1V or shallower slopes. Some sections of the levee are wider, with a road on top, and some sections in the park are wider with more gradual slopes. The left bank levee from station 0+00 to about station 19+00 is designed to overtop in events greater than the design event, to prevent other areas from overtopping. The floodwalls are steel sheetpile below ground, concrete wall above ground. The sheetpile wall is located on the left bank, from about station 19+00 to about station 29+50, and again on the left bank from about 35+00 to 38+00, and again on the left bank from station 40+00 to 55+50. On the right bank, from about station 68+00 to about 73+80, protection is provided by a PCC curb wall. In addition to the levees and floodwalls, the project includes mitigation features. The mitigation features are the groundwater side -channel and the revetment at the Maplewood golf course, the Landsburg gravel supplementation, lighting reduction at the Boeing plant, riparian plantings along the lower river, tide flex valves at outfalls along the lower river, and the Elliott rearing/spawning channel. 1.2 Authorization The Cedar River at Renton Flood Damage Reduction Project was constructed under authority of Section 205 of the 1948 Flood control Act, as amended, and subject to local cooperation as set forth in Section 3 of the Flood Control Act of 1936, Public Law 738 as modified be Section 103 of the water Resources Development Act (WRDA) of 1986, Public Law 99-662. 1.3 Location The project area is the lower 1-'/4 miles of the Cedar River in the City of Renton, located in King County, Washington, immediately southeast of the City of Seattle. The Cedar River drainage basin is located southeast of Seattle, Washington, and lies entirely within the boundaries of King County. The basin is approximately 40 miles long, has a maximum width of 10 miles, and drains 188 square miles into Lake Washington at Renton. 1.4 Project Purpose The project is designed to provide protection from the 100-year flood. The project protects portions of downtown Renton, including the Boeing plant and the Renton airport. 1.5 Construction History The river excavation was performed by equipment rental method, using equipment hired from Gary Merlino Construction, Seattle, WA, and DKR Construction Inc, Union Gap, WA. The levee construction was performed by Ceccanti Corp. of Spanaway, Washington. DATE EVENT April 1998 River excavation construction contract advertised May 1998 PCA executed June 1998 River excavation construction contract awarded June 1998 River excavation construction initiated August 1998 River excavation completed December 1998 Levee contract advertised March 1999 Levee contract awarded April 1999 Levee construction initiated November 1999 Levee construction complete December 2000 Flood control complete, transferred to local sponsor 2 Project Cooperation Agreement The Corps of Engineers and the City of Renton have entered into a PCA for this project on May 9, 1998, as required by Public Law (99-662). A copy of the duly executed PCA is included as Appendix A of the Manual. 2.1 Responsibility of Local Interests The responsibility of local interests is defined by Section 3 of the Flood Control Act approved 22 June 1936, Public Law 738 as modified by Section 103 of the WRDA approved 19 November 1986. The project cooperation agreement (appendix A) signed by the City of Renton on 9 May 1998, in accordance with Public Law 738, lists the following responsibilities of the City of Renton. • Accomplish normal items of cooperation listed in article II paragraphs a through j of the project cooperation agreement. • Assume full responsibility for all project costs in excess of Federal cost limitation $5 million as provided in Section 915(a) of the Water Resources Development Act of 1986 (Public Law 99-662, approved 17 November 1986). • Comply with Civil Rights, Uniform Relocation Assistance and Real Property Acquisition regulations as described in Article III paragraph d of the project cooperation agreement. Guarantee the Government reasonable access to the project for the purpose of inspection and, if necessary, operating, repairing, and maintaining the project. 2.2 Failure of Non -Federal Interests to Operate and Maintain In accordance with Paragraph d, Section 221 of Public Law 91-661, "The Chief of Engineers may undertake performance of those items of cooperation necessary to the functioning of the project for its purposes, if he has first notified the non -Federal interest of its failure to perform the terms of its agreement and has given such interest a reasonable time after such notification to so perform." All costs incurred by the Federal Government in performing O&M of the project that is the responsibility of the non -Federal interest will be reimbursed by the non -Federal interest. Provisions for this are included in Article IX of the project cooperation agreement. 3 General Procedures 3.1 Approved Regulations Regulations for operation and maintenance of local flood control projects have been prescribed by the Secretary of the Army in accordance with authority contained in the Code of Federal Regulations, Title 33 - Navigation and Navigable Waters, Chapter II - Corps of Engineers, Part 208 - Flood Control Regulations, Section 208.10 - Local Flood Protection Works; Maintenance and Operations of Structures and Facilities, hereinafter referred to as the "regulations". Relevant portions of the regulations are included in appendix B. 3.2 General Rules and Procedures General rules for operation and maintenance of local flood control works are given in paragraph 208.10(a) of the regulations. Most duties outlined are self- explanatory. Features requiring clarification for application to this project are covered in the following paragraphs. 3.3 Duties of the Superintendent (Reference paragraph 208.10(a)(2) of the regulations.) The City of Renton shall appoint a permanent committee consisting of or headed by an official designated as the Superintendent who shall have charge of the operation and maintenance of the project. Details of the Superintendent's duties are presented in the regulations. The Superintendent's general duties include training key personnel in maintenance and emergency operations of the project. The Superintendent shall ascertain that all his key people have read the portions of this manual pertaining to their duties. The Superintendent should have addresses and telephone numbers of all key people and a reasonable number of substitutes; key people should in turn have similar information regarding all the people who will assist them. The District Engineer, U.S. Army Corps of Engineers, Seattle, Washington, should be kept advised of the names of the Superintendent and of his committee at all times. Experience has shown the key people should include. - An assistant Superintendent to act in the absence of the Superintendent; and A sufficient number of people trained to lead maintenance work and inspection of the project during and following any flood fighting operations, and to provide inspection and maintenance during low flow periods. 3.4 Trespass on Rights -of -way (Reference paragraph 208.10(a)(4) of the regulations.) The Superintendent shall not permit any encroachment or trespass upon project rights -of -way which will adversely affect efficient operation and maintenance of the project. 3.5 Improvements or Alterations (Reference paragraph 208.10(a)(5) of the regulations.) No improvements or alterations affecting the flood protective works shall be made without prior determination by the District Engineer, U.S. Army Corps of Engineers, Seattle, Washington, that such improvements or alterations will not adversely affect the function of the protective facilities. Drawings or prints of proposed changes and information concerning methods of construction shall be submitted to the District Engineer sufficiently in advance of the proposed construction to permit adequate time for study and consideration of the work. If approved, drawings or prints in duplicate, showing improvements or alterations as finally constructed, shall be furnished to the District Engineer after work is completed and added to the Operation and Maintenance Manual. Improvements and alterations are defined as non -maintenance activities. Actions necessary to eliminate threats to life and/or property in emergency situations may be taken in advance of approval of drawings and other information describing the corresponding alterations. 3.6 Annual Report (Reference paragraph 208.10(a)(6) of the regulations.) Submission of an annual report is required. Seattle District requests that local sponsors compile all inspection, maintenance, and operation information for the year into one submittal, with an additional report following each flood event. The annual report shall be submitted by 1 October each year to the District Engineer, U.S. Army corps of Engineers, Post Office Box 3755, Seattle, Washington, 98124-2255, ATTN: Emergency Management Branch. The report shall cover the inspection, maintenance, and operation of the protective works, including a chronological log of all operations and dated copies of inspection checklists made during the period of the report. An outline of the Superintendent's annual report to the District Engineer is shown in appendix C. The nature and date of repairs shall be included in this report. Other items and suggestions relative to public sentiment on the project, its effectiveness, and other allied subjects are considered desirable data for inclusion in this report. 3.7 Periodic Inspections (Reference paragraph 208.10(b)(1), (d)(1), and (h)(1) of the regulations.) Periodic inspections of the levee, drainage and bridge structures are required. Ideally, intervals between periodic inspections should not exceed 90 days. Inspections are required also at such intermediate times as may be necessary to ensure the best possible care of the flood protection project. Periodic inspections shall be made under the supervision of the Superintendent. The following times for conduct of periodic inspections of the levees and drainage structures are furnished for guidance: • prior to the beginning of flood season (1 October); • throughout the duration of high water events; • immediately following each high water period; • during the spring (March or April); following repair or reconstruction of any portion of the project; during extreme low flow conditions (15 August - 30 September); intermediate times as necessary. 3.8 Surveys Surveys of the levees shall be made within 4 years after completion of the O&M manual, and at any time visual inspection indicates surveys are warranted to ensure detection of any settling of the levee. The City of Renton shall perform surveys. Surveys shall include levee top elevations to nearest .10 foot at 100- foot intervals along the centerline. Surveys of the channel shall be made annually by the City of Renton until the City is able to develop a prediction of sedimentation rates based on flow events. An abbreviated survey is acceptable if the winter flows do not warrant an all-inclusive survey. At the City's discretion, no survey is required if winter flows do not exceed 2500 CFS. After the City is comfortable with their methodology for predicting the need to dredge the river channel, the time between river channel surveys may be increased at the City's discretion. 3.9 Checklists The Superintendent shall prepare checklists covering all features of the project for use on each inspection to ensure that no feature of the protective works is overlooked. Items requiring maintenance shall be noted thereon. 3.10 Sequence of Operations Maximum discharge of the Cedar River normally occurs between October and March. Flood season in the Cedar River basin coincides with winter rain and spring snowmelt runoff. During the months of October through March, the CNiperintanrlant shall ronrliint inspections of personnel; equipment; and materials and shall hold practice drills as necessary to ensure immediate and efficient flood fighting operations as outlined in section 4 of this manual. Periods of low flow during the summer months shall be utilized to the fullest extent to inspect the project for possible flood damage and to accomplish necessary repairs and maintenance work. The Corps anticipates that Boeing will participate as stated in the Agreement between Renton and Boeing. 4 Operations During High Water Flow 4.1 General This section presents supplementary procedures that are applicable during high water periods. A high water period is defined as a Phase IV flood exceeding 4800 cubic feet per second (CFS) as measured at the Landsburg gage. While the operation of the project is the responsibility of the City of Renton, the Corps has accepted that the City has delegated the operation of the South Boeing Bridge to the Boeing Company. A copy of the agreement between the City and Boeing on the operation of the bridge is included in this document. It is the City's responsibility to verify that Boeing is operating the South Boeing Bridge in accordance with this manual. If Boeing does not operate the bridge in accordance with this manual, it is the City's responsibility to operate the bridge. 4.2 Procedures to be followed at Flood Stage Levee observations shall be made during flood events noting time, location or levee station, and water level (on the riverside of the levee). These observations shall be correlated with U.S. Geological Survey (USGS) gage readings and records of streamflow. When King County announces a Phase IV alert for the Cedar River, the Superintendent shall initiate the following steps: a. Locate necessary tools and materials that can readily be made available (quarry spalls, shovels, sandbags, etc.). b. Locate earth moving equipment and trucks that can be made available. C. Assign persons in shifts to provide 24-hour patrol of the levee and project area. initially, these persons shall make a detailed inspection and report the condition of the project to the Superintendent. d. Assure that persons patrolling the levee are aware of any treed areas and any structures (such as bridge abutments and piers, and gabion walls) on the riverside of the levee, and that these structures and treed areas are inspected frequently to assure that debris is not collecting along or behind them. If debris does collect, it must be cleared immediately to decrease the possibility of damage to the levee. e. Make needed emergency repairs as quickly as possible. 4.3 New Section Sandbag Locations To maintain 100-year protection with the design level of reliability, there are several locations along the right levee that will need to be sandbagged. The commencement of sandbagging activities will begin when the flow at the USGS Renton gage is forecast to exceed 9000 cfs. The sandbag locations are: 1. Station RT 10+00 to Station 14+70. Station RT 10+00 needs to be sandbagged to elevation 26.00 feet (currently elevation is about 24.8 feet) and Station 14+70 needs to be sandbagged to elevation 26.50 feet (currently elevation is about 26.00 feet). The minimum elevations between these two points should be linear. Note: all elevations specified in this section are referenced to the NAVD88 datum. 2. Station RT 14+70 and Station RT 19+00. Station 19+00 needs to be sandbagged to elevation 26.90 feet. The current elevation of this location is about 26.56 feet. The minimum elevations between Stations RT 14+70 and 19+00 should be linear. 3. Station RT 19+00 and Station RT 26+60. Station RT 26+60 meets the 90% reliability requirement. The minimum elevations between RT 19+00 and RT 26+60 should be linear. 4. At about Station RT 68+50 to upstream end of project. This is a location noted on the construction drawings for sandbagging. The protection elevation needs to be 37.70 feet at RT68+50 rising linearly to 38.00 feet at the upstream end of the project. The sandbag elevations specified are for a condition where the river channel has aggraded to the level of the "Allowable Bed". Discussed in 4.9.3. At locations where the channel is known to be below the allowable elevation, sandbag elevations could be reduced. Sandbagging efforts shall be mobilized when flows at Landsburg reach 3500 cfs and are predicted to increase. 4.4 Bridge Operation Each year the Superintendent shall develop a rating curve for the Cedar River at the South Boeing bridge and determine at what flow the river stage will reach the lower chord of the bridge. That flow will be called the "bridge flow". During any high flow event, the Superintendent shall monitor the flow in the river using either the USGS gage at Landsburg or by monitoring the King County flood warnings. If the Landsburg gage readings are not available, the Superintendent shall rely on the King County flood phase warning system. When the Landsburg gage indicates that the bridge flow has occurred, or when the King County flood phase IV is announced, the process to raise the bridge shall begin. At the time the Landsburg gage indicates that the bridge flow has occurred, the Superintendent will have about 4 hours to raise the bridge before that flow arrives at the bridge. The bridge must be raised before the water surface reaches the bottom of the bridge. In the event that the warning system described above fails, the bridge shall be raised if the water is within six inches of the bottom of the bridge. For as long as Boeing operates the bridge in accordance with the O&M manual for the bridge, the intent of this O&M program is met. The City is responsible to verify that Boeing's 0&M program for the bridge is adequate, and to assume O&M responsibilities if it is not. The agreement between Renton and Boeing is included in Appendix C. 4.5 Levee Operation During flood periods, the levee shall be patrolled on an ongoing basis to locate possible sand boils, animal holes, or unusual wetness of the landward slope and to be certain that: • no indications of slides or sloughs are developing; • no wave wash or scouring actions are occurring; • no low reaches of levees exist which may be overtopped except where such overtopping is an intentional part of the project; and • no other conditions exist which might endanger the structure. Immediate steps will be taken to control any condition that endangers the levee and to repair the damaged section. 4.6 Closure Gate Operation As part of the Lower Cedar River Flood Control Project, closure gates were constructed at each end of the South Boeing Bridge. These closure gates were designed to operate in conjunction with raisinq the bridqe during a flood. Each gate leaf is normally inside a concrete pocket wail on the north and south sides of the bridge, and rolled out across the bridge approach during a flood. This would be accomplished after the bridge is raised. The following is a description of the steps that were demonstrated during the operation test. These steps apply to each of the four gates leafs. 1. Remove the steel plates covering the rail trench. 2. Remove the galvanize steel blocking plate attached to the river side of the pocket wall. This plate is attached to stainless steel bolts embedded in the concrete pocket wall using stainless steel nuts. The plate is designed to block the gap between the pocket wall and the steel ribbed skin of the gate. The blocking plate is "stored" on the pocket wall by turning the plate so that the ribbed edge faces the river. 3. Once the blocking plate is removed, the gate can be pulled out of the pocket wall either manually, or by using a vehicle and towline. Normally, the gate can be pulled out manually. The gate rolls on a steel rail that is inset a trench in the concrete approach to the bridge. The gate should be rolled out to the center of the bridge until the stainless steel arrow welded on the bottom of the gate aligns with the stainless steel arrow welded on the top edge of the trench. 4. Once the gate is in location, a series of J-bolts located along the bottom of the gate must be lowered into position by loosening the lock nut. After lowering each J-bolt, turned it 900 so that the leg of the J-bolt engages in a corresponding slot cut in the rail web. Hold the J-bolt in this position and tighten the lock nut. 5. After all the J-bolts are tightened and the gate is secured to the rail, a series of nonadjustable struts are attached to the gate and anchored to the bridge approach using steel pins that are inserted into a hole in the concrete. A small square steel plate is welded to the one end of the steel pin. The pins are used to cover the holes in the concrete, when not used to secure the struts. NOTE: Each strut is a different length and cannot be interchanged. A number is painted on each strut corresponds to number painted to the attachment slot on the gate. The strut closest to the pocket wall is adjustable. There are two parts to the adjustable strut, which slide together and allow the strut to be either shortened or lengthened. The adjustable strut is used to hold the gate tight against the blocking plate, which is installed as described in the following step. 6. Attach the blocking plate to the end of the pocket wall using the stainless steel nuts. After the blocking plate is in place, adjust the strut to minimize the gap between the blocking plate and the face of the ribbed skin of the gate. The strut can be tightened by hand using the handles attached to the strut screw. 7. After one gate leaf is in place, pull the opposite gate leaf into place. A vertical steel angle on each gate leaf overlap. A rubber seal is attached to the steel angle one gate, and minimizes the flow of water between the ends of the gates. 8. After each gate leaf is in place, the J-bolts tightened, and the struts and blocking plates installed, place a row of sand bags along the bottom of the gate, on the river side. This will minimize water from flowing under the gate. 9. Reversing the procedures described above opens the gates. It is important to raise the J-bolts until the leg of each J-bolt is inside the bottom rail of the gate. Otherwise, the J-bolts rub against the side of the rail making it difficult to roll the gate into place. 4.7 Emergency Repairs Emergency repairs described in the following paragraphs may be required during high water stages. These repairs are independent of those that may be required as a result of routine inspections referred to in paragraphs 208.10(a)(2), (b)(1), (c)(1), and (h)(1) of the regulations (see appendix B). Repairs are to be made with semi -impervious to impervious material similar to that in the existing levee. 4.7.1 Degradation Levee bank failures are most likely where there are fluctuating water levels and high stream bank or levee erosion. The use of quarry spalls or larger rock, as required, is recommended to prevent further damage. If it is determined during the post -flood inspection that the emergency repairs were not adequate for bank stabilization, permanent repairs shall be made using materials of adequate size. Permanent repairs shall be coordinated with Seattle District, Corps of Engineers. 4.7.2 Seepage Ground seepage can be removed locally by pumping. The interior drainage watershed is small and capable of temporary ponding of any local storm water runoff. Existing interior drainage conditions do not require installation of permanent pumping facilities. 4.7.3 Debris Removal at Bridges At the onset of a flood event expected to approach the magnitude of the 100- year flood event, the bridges within the project, including the North Boeing Bridge, should be inspected for accumulated debris and such debris should be removed prior to the flood event. in addition, the bridges within the project should be inspected during a large flood event for the accumulation of debris at bridges that might impede the flow of water through said structures. Project Maintenance 4.8 Project Plans Location, sections, and details of the project are shown on the drawings at the end of this manual. 4.9 General Notes on Maintenance 4.9.1 Inspections Thorough inspection of project facilities before each flood season and after each flood is vital. Use of the Superintendent's checklist will ensure that no project feature is overlooked during inspection. 4.9.2 Utilities The location of water, sewer, electrical, and gas lines within the project limits shall be determined before any maintenance measures are taken or repairs are made. 4.9.3 Improvements Improvements shall be inspected to see that all construction is in accordance with standard engineering practice. Fences constructed across the levee must have a 16-foot wide vehicle gate to allow authorized vehicles to travel along the top of the levee as necessary. The City of Renton shall have their own locks on all gates and cables located on the levee ramps or the levee itself. All locks shall be keyed alike. A master key shall be made available to the Superintendent, another master key shall be deposited where it is available at any time to emergency or maintenance personnel, and a master key shall be provided to Seattle District, Corps of Engineers, Emergency Management Branch. Any improvements that might be expected to alter the 100-year water surface elevations shall be brought to the attention of Seattle District, Corps of Engineers for evaluation. 4.9.4 Maintenance agreement with Boeing While the City of Renton is responsible for the maintenance of all project features, including the South Boeing Bridge, the Corps accepts the agreement between the City and the Boeing Company delegating maintenance of the bridge to the Boeing Company. For as long as Boeing maintains the bridge in accordance with the O&M manual for the bridge, the intent of this O&M program is met. The City is responsible to verify that Boeing's maintenance program for the bridge is adequate, and to assume maintenance responsibilities if it is not. The agreement between Renton and Boeing is included in Appendix C. 4.10 Specific Maintenance Procedures 4.10.1 Embankment Levee (Reference paragraph 208.10(b)(1) and (2) of the regulations. See appendix B.) The Superintendent shall provide at all times such maintenance as may be required to ensure serviceability of the structure in time of flood. Measures shall be taken to ensure, among other things, that: • A good growth of sod, substantially free of noxious weeds and invasive non- native plant species, is maintained where turf is indicated on the drawings; • All brush, trees and other growth which violate the criteria set forth in this Section are removed from the levee embankment (vegetation specifically planted or preserved by this project shall remain); • All animal burrows, when found, are backfilled with compacted material; • The levee is maintained free of debris and drift, and other encroachments such as buildings, structures, and refuse dumps; and Periodic inspections of the levee prism shall be made under the supervisions of the Superintendent to ensure that the above maintenance measures are being effectively carried out and further to be certain that: • No unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; • No revetment work or riprap has been displaced, washed out, or removed; • No action is taken which will retard or destroy the growth of sod, such as burning grass and weeds during inappropriate seasons and/or applying herbicides; and • No encroachments are being made on the levee rights -of -way which might endanger the structure or hinder its proper and efficient functioning during times of emergency. Immediate steps shall be taken to correct dangerous conditions disclosed by such inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. Vegetation on the levees shall be maintained as follows: • Grass or sod, where turf is indicated on the drawings, shall be maintained in good condition free of noxious weeds and invasive non-native species. Turf shall be mowed to maintain a length between 2 and 12 inches. • All existing trees or shrubs specifically preserved or planted within the rights - of -way for this project shall be inspected to ensure that fallen limbs or trunks are removed, that the top of the levee is unimpeded to vehicle passage, and that erosion of the riverward embankment in the root zones has not occurred. Dead vegetation shall be removed and replaced with suitable species when and where feasible. Vegetation on the riverward side of the levee system not specifically preserved for this project shall be managed by mowing or by selective cutting or pruning to maintain a maximum height of growth of less than 25 feet and a maximum individual stem diameter at 4 feet above the ground of approximately 4 inches. • Woody vegetation is allowed on the levee slopes where the levee is overbuilt (i.e. the levee side slope is shallower than 1 on 2). When tree trunks become larger than 10 inches in diameter at breast height, then the trees would be considered for removal. Dead or uprooted trees must be removed if the trees could impact levee integrity. Shrubs and blackberries shall not be allowed to grow so thick in the levee slopes that they would obscure visual inspection of the levee. Please refer to EM 1110-2-301, Landscape planting on flood control structures", for guidance. 4.10.2 South Boeing Bridge Specific maintenance procedures for the South Boeing Bridge are beyond the scope of this manual. Renton is responsible for operation and maintenance as advised in the O&M manual that was prepared for the bridge. As the bridge is property of Boeing, and Boeing has agreed to operate and maintain the bridge, the Superintendent should satisfy himself that the Boeing Company is performing the maintenance and that the bridge is operational. For Boeing's agreement to maintain the bridge, see Appendix C. 4.10.3 River Channel The Superintendent shall obtain surveys of the river channel as indicated in Section 3.8. These surveys shall be compared with the "Allowable Average Bed" shown in Figure 11 of the Northwest Hydraulic Consultants December 2001 report Lower Cedar River Sedimentation Analysis of Existing Data -Final Report. This figure is shown in Appendix E of this document. Note that elevations on this document are referenced to the NGVD1929 datum. This bed profile has been determined (with the sandbagging specified in Section 4.XX in place) to produce river stages within the project boundaries such that the right levee provides 100- year flood event protection with approximately 90% reliability. As the bed approaches the specified allowable elevation, anywhere within the project, provisions should be made for channel excavation to maintain the design level of protection. A HEC-RAS model shall be used to verify that any changes to the river channel and associated overbank areas do not have an adverse affect on the resulting water surface elevation and the ability of the project to contain the 100-year flood event. 4.10A Closure gates at the South Boeing Bridge The superintendent shall inspect the closure gates annually to verify that all parts are still present and in working order. All tools, equipment, and parts required to operate the gates shall be stored together, and shall be inventoried during each inspection. The Boeing Company has accepted responsibility for the South Boeing Bridge, as stated in the Renton -Boeing Agreement. See Appendix C. 5 Repair, Replacement, and Rehabilitation 5.1 Levee. Immediate steps will be taken to correct dangerous conditions disclosed by inspections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. 5.2 Drainage Structures. Immediate steps will be taken to repair damage, replace missing or broken parts, or remedy adverse conditions disclosed by inspections. 5.3 TideFlex Check Valves. The valve should be opened utilizing smooth instruments without scouring or abrading the sides of the valve lip. Debris can then be removed without damage to the valve sides. 6 Outline of Annual Report 6.1 General a. Date inspection made. b. Name and official capacities of persons making the inspection. 6.2 Earthfill Levee a. General condition of levee and stream bank riverward of setback levee. b. Erosion or piping. c. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.3 River Channel a. Date of survey, survey results (channel geometry, and summary of any hydraulic modeling results. 6.4 South Boeing Bridge a. Condition of bridge, including truck and equipment on truck. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.5 Closure Gates a. Condition of gates, rails, and braces. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.6 Culvert Tideflex Valve a. Condition of culvert and Tideflex Valve attachment. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.7 Landscaping a. Condition of plants and project area. b. Repairs made or other actions taken resulting from inspection of the foregoing items. 6.8 Conditions During Flood Period In the first annual report following a flood period, the Superintendent shall give a complete chronological log of operations accomplished before, during, and after the flood period, relating particularly to the following items: a. Inspections made immediately prior to the flood, during the flood, and after the flood. b. The continual patrolling of the project during flood periods and a record of events occurring during the flood. C. Record of water levels during the flood. d. Adequacy of personnel and equipment employed during the flood, and detailed information on any deficiencies. Appendix A: Project Cooperation Agreement CAG-98-064 MODEL PROJECT COOPERATION AGREEMENT FOR SECTION 205 STRUCTURAL FLOOD CONTROL PROJECTS PROJECT COOPERATION AGREEMENT BETWEEN THE DEPARTMENT OF THE ARMY MV THE CITY OF RENTON, WASHINGTON FOR CONSTRUCTION OF THE CEDAR RIVER FLOOD DAMAGE REDUCTION PROJECT V THIS AGREEMENT is entered into this day of Q , 1998, by and between the DEPARTMENT OF THE ARMY ('hereinafter the "Government"), represented by the U.S. Army Engineer for the Seattle District (herein^after the "District Engineer") and the City of Renton, Washington, (hereinafter the "Non -Federal Sponsor) represented by the Mayor. WITNESSETH, THAT: WHEREAS, the Cedar River Flood Damage Reduction Project at Renton, Washington, (hereinafter the "Project") was approved for construction by CENWD-ET- P approval of ' fAl q 8 pursuant to the authority contained in Section 205 of the Flood Control Act of 1948, as amended, 33 U.S.C. 701s; WHEREAS, the Government and the Non -Federal Sponsor desire to enter into a Project Cooperation Agreement for construction of the Project, as defined in Article I.A. of this Agreement; WHEREAS, Section 103 (a) of the Water Resources Development Act of 1986, Public Law 99-662, as amended, specifies the cost -sharing requirements applicable to the Project; WHEREAS, under Section 205 of the Flood Control Act of 1948, as amended, the Government may expend up to $5,000,000 on a single flood control project; WHEREAS, Section 221 of the Flood Control Act of 1970, Public Law 91-611, as amended, and Section 103 of the Water Resources Development Act of 1986, Public Law 99-662, as amended, provide that the Secretary of the Army shall not commence construction of any water resources project, or separable element thereof, until each non -Federal sponsor has entered into a written agreement to furnish its required cooperation for the project or separable element; WHEREAS, the Non -Federal Sponsor does not qualify for a reduction of the maximum Non -Federal cost share pursuant to the guidelines that implement Section 103(m) of the Water Resources Development Act of 1986, Public Law 99-662, as amended; WHEREAS, the Government and Non -Federal Sponsor have the full authority and capability to perform as hereinafter set forth and intend to cooperate in cost - sharing and financing of the construction of the Project in accordance with the terms of this Agreement. NOW, THEREFORE, the Government and the Non -Federal Sponsor agree as follows: ARTICLE I -- DEFINITIONS AND GENERAL PROVISIONS For purposes of this Agreement: A. The term "Project" shall mean construction of one and one -quarter miles of levees and floodwalls along each bank of the Cedar River, Federal dredging of one and one -quarter miles off the river during initial construction to a depth of approximately four (4) feet, and construction of a spawing channel as generally described in the Cedar River, Renton, Washington, Flood Damage Reduction Study Detailed Project Report of January 14, 1998, approved by the Assistant Secretary of the Army (Civil Works) / Chief of Engineers on February 5, 1998. B. The term "total project costs" shall mean all costs incurred by the Non - Federal Sponsor and the Government in accordance with the terms of this Agreement directly related to construction of the Project. Subject to the provisions of this Agreement, the term shall include, but is not necessarily limited to: engineering and design costs during the preparation of contract plans and specifications; engineering and design costs during construction; the costs of investigations to identify the existence and extent of hazardous substances in accordance with Article XV.A. of this Agreement; costs of historic preservation activities in accordance with Article XVIII.A. of this Agreement; actual construction costs, including the costs of alteration, lowering, raising, or replacement and attendant removal of existing railroad bridges and approaches thereto; supervision and administration costs; costs of participation in the Project Coordination Team in accordance with Article V of this Agreement; costs of contract dispute settlements or awards; the value of lands, easements, rights -of - way, relocations, and suitable borrow and dredged or excavated material disposal areas for which the Government affords credit in accordance with Article IV of this Agreement; and costs of audit in accordance with Article X of this Agreement. The term does not include any costs for operation, maintenance, repair, replacement, or CED205.PCA 3/12/98 7:34 AM rehabilitation; any costs due to betterments; or any costs of dispute resolution under Article VII of this Agreement. C. The term "financial obligation for construction" shall mean a financial obligation of the Government, other than an obligation pertaining to the provision of lands, easements, rights -of -way, relocations, and borrow and dredged or excavated material disposal areas, that results or would result in a cost that is or would be included in total project costs. D. The term "Non -Federal proportionate share" shall mean the ratio of the Non - Federal Sponsor's total cash contribution required in accordance with Articles II.D.1. and II.D.3. of this Agreement to total financial obligations for construction, as projected by the Government. E. The term "period of construction" shall mean the time from the date the Government first notifies the Non -Federal Sponsor in writing, in accordance with Article VI.B. of this Agreement, of the scheduled date for issuance of the solicitation for the first construction contract to the date that the District Engineer notifies the Non -Federal Sponsor in writing of the Government's determination that construction of the Project is complete. F. 'The term "highway" shall mean any public highway, roadway, street, or way, including any bridge thereof. G. The term "relocation" shall mean providing a functionally equivalent facility to the owner of an existing utility, cemetery, highway or other public facility, or railroad (excluding existing railroad bridges and approaches thereto) when such action is authorized as between the Non -Federal Sponsor and the Facility owner in accordance with applicable. legal principles of just compensation. Providing a functionally equivalent facility may take the form of alteration, lowering, raising, or replacement and attendant removal of the affected facility or part thereof. H. The term "fiscal year" shall mean one fiscal year of the Government. The Government fiscal year begins on October 1 and ends on September 30. I. The term "functional portion of the Project" shall mean a portion of the Project that is suitable for tender to the Non -Federal Sponsor to operate and maintain in advance of completion of the entire Project. For a portion of the Project to be suitable for tender, the District Engineer must notify the Non -Federal Sponsor in writing of the Government's determination that the portion of the Project is complete and can function independently and for a useful purpose, although the balance of the Project is not complete. J. The term "betterment" shall mean a change in the design and construction of an element of the Project resulting from the application of standards that the Government determines exceed those that the Government would otherwise apply for accomplishing the design and construction of that element. 3 CED205.PCA 3/12/98 7:34 AM ARTICLE II -- OBLIGATIONS OF THE GOVERNMENT AND THE NON-FEDERAL SPONSOR - A. The Government, subject to the availability of funds and using those funds and funds provided by the Non -Federal Sponsor, shall expeditiously construct the Project (including alteration, lowering, raising, or replacement and attendant removal of existing railroad bridges and approaches thereto), applying those procedures usually applied to Federal projects, pursuant to Federal laws, regulations, and policies. 1. The Government shall afford the Non -Federal Sponsor the opportunity to review and comment on the solicitations for all contracts, including relevant plans and specifications, prior to the Government's issuance of such solicitations. The Government shall not issue the solicitation for the first construction contract until the Non -Federal Sponsor has confirmed in writing its willingness to proceed with the Project. To the extent possible, the Government shall afford the Non -Federal Sponsor the opportunity to review and comment on all contract modifications, including change orders, prior to the issuance to the contractor of a Notice to Proceed. In any instance where providing the Non -Federal Sponsor with notification of a contract modification or change order is not possible prior to issuance of the Notice to Proceed, the Government shall provide such notification in writing at the earliest date possible. To the extent possible, the Government also shall afford the Non -Federal Sponsor the opportunity to review and comment on all contract claims prior to resolution thereof. The Government shall consider in good faith the comments of the Non -Federal Sponsor, but the contents of solicitations, award of contracts, execution of contract modifications, issuance of change orders, resolution of contract claims, and performance of all work on the Project (whether the work is performed under contract or by Government personnel), shall be exclusively within the control of the Government. 2. Throughout the period of construction, the District Engineer shall furnish the Non -Federal Sponsor with a copy of the Government's Written Notice of Acceptance of Completed Work for each contract for the Project. B. The Non -Federal Sponsor may request the Government to accomplish betterments. Such requests shall be in writing and shall describe the betterments requested to be accomplished. If the Government in its sole discretion elects to accomplish the requested betterments or any portion thereof, it shall so notify the Non -Federal Sponsor in a writing that sets forth any applicable terms and conditions, which must be consistent with this Agreement. In the event of conflict between such a writing and this Agreement, this Agreement shall control. The Non -Federal Sponsor shall be solely responsible for all costs due to the requested betterments and shall pay all such costs in accordance with Article VI.C. of this Agreement. C. When the District Engineer determines that the entire Project is complete or that a portion of the Project has become a functional portion of the Project, the District Engineer shall so notify the Non -Federal Sponsor in writing and furnish the Non -Federal Sponsor with an Operation, Maintenance, Repair, Replacement, and Rehabilitation Manual (hereinafter the "OMRR&R Manual") and with copies of all of CED205.PCA 3/12/98 7:34 AM the Government's Written Notices of Acceptance of Completed Work for all contracts for the Project or the functional portion of the Projecf that have not been provided - previously. Upon such -notification, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the entire Project or the functional portion of the Project in accordance with Article VIII of this Agreement. D. The Non -Federal Sponsor shall contribute a minimum of 35 percent, but not to exceed 50 percent, of total project costs in accordance with the provisions of this paragraph. 1. The Non -Federal Sponsor shall provide a cash contribution equal to 5 percent of total project costs in accordance with Article VI.B. of this Agreement. 2. In accordance with Article III of this Agreement, the Non -Federal Sponsor shall provide all lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas that the Government determines the Non -Federal Sponsor must provide for the construction, operation, and maintenance of the Project, and shall perform or ensure performance of all relocations that the Government determines to be necessary for the construction, operation, and maintenance of the Project. 3. If the Government projects that the value of the Non -Federal Sponsor's contributions under paragraphs D.1. and D.2. of this Article and Articles V, X, and XV.A. of this Agreement will be less than 35 percent of total project costs, the Non - Federal Sponsor shall provide an additional cash contribution, in accordance with Article VI.B. of this Agreement, in the amount necessary to make the Non -Federal Sponsor's total contribution equal to 35 percent of total project costs. 4. If the Government determines that the value of the Non -Federal Sponsor's contributions provided under paragraphs D.2. and D.3. of this Article and Articles V, X, and XV.A. of this Agreement has exceeded 45 percent of total project costs, the Government, subject to the availability of funds, shall reimburse the Non - Federal Sponsor for any such value in excess of 45 percent of total project costs. After such a determination, the Government, in its sole discretion, may provide any remaining Project lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas and perform any remaining Project relocations on behalf of the Non -Federal Sponsor. E. The Non -Federal Sponsor may request the Government to provide lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas or perform relocations on behalf of the Non -Federal Sponsor. Such requests shall be in writing and shall describe the services requested to be performed. If in its sole discretion the Government elects to perform the requested services or any portion thereof, it shall so notify the Non -Federal Sponsor in a writing that sets forth any applicable terms and conditions, which must be consistent with this Agreement. In the event of conflict between such a writing and this Agreement, this Agreement shall control. The Non -Federal Sponsor shall be solely responsible for all costs of the requested services and shall pay all such costs in accordance with Article VI.C. of this Agreement. Notwithstanding the provision of lands, easements, rights -of -way, and CED205. PCA 3/12/98 7:34 AM suitable borrow and dredged or excavated material disposal areas or performance of relocations by the Government, the Non -Federal Sponsor shall be resporisi e; as between the Government and the Non -Federal Sponsor, for the costs of cleanup and response in accordance with Article XV.C. of this Agreement. F. The Government shall perform a final accounting in accordance with Article VI.D. of this Agreement to determine the contributions provided by the Non -Federal Sponsor in accordance with paragraphs B., D., and E. of this Article and Articles V, X, and XV.A. of this Agreement and to determine whether the Non -Federal Sponsor has met its obligations under paragraphs B., D., and E. of this Article. G. The Non -Federal Sponsor shall not use Federal funds to meet the Non - Federal Sponsor's share of total project costs under this Agreement unless the Federal granting agency verifies in writing that the expenditure of such funds is expressly authorized by statute. H. In the exercise of their respective rights and obligations under this Agreement, the Non -Federal Sponsor and the Government agree to comply with all applicable Federal and State laws and regulations, including, but not limited to, Section 601 of the Civil Rights Act of 1964, Public Law 88-352 (42 U. S. C. 2000d), and Department of Defense Directive 5500.11 issued pursuant thereto, as well as Army Regulations 600-7, entitled "Nondiscrimination on the Basis of Handicap in Programs and Activities Assisted or Conducted by the Department of the Army, and Section 402 of the Water Resources Development Act of 1986, as amended (33 U. S. C. 70lb- 12), requiring non -Federal preparation and implementation of flood plain management plans. I. Not less than once each year the Non -Federal Sponsor shall inform affected interests of the extent of protection afforded by the Project. J. The Non -Federal Sponsor shall publicize flood plain information in the area concerned and shall provide this information to zoning and other regulatory agencies for their use in preventing unwise future development in the flood plain and in adopting such regulations as may be necessary to prevent unwise future development and to ensure compatibility with protection levels provided by the Project. K. The Non -Federal Sponsor shall ensure that the modification to the south Boeing Bridge described in paragraph 4.06 of the DPR is provided, operated, maintained, repaired, replaced, and rehabilitated at no Federal expense, in a manner compatible with the project's authorized purposes and in accordance with applicable Federal and State laws and regulations and any specific directions prescribed by the Federal Government. ARTICLE III -- LANDS, RELOCATIONS, DISPOSAL AREAS, AND PUBLIC LAW 91.-646 COMPLIANCE A. The Government, after consultation with the Non -Federal Sponsor, shall determine the lands, easements, and rights -of -way required for the construction, operation, and maintenance of the Project, including those required for relocations, CED205.PCA 3/12/98 7:34 AM borrow materials, and dredged or excavated material disposal. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions, including maps as appropriate, of the lands, easements, and rights -of - way that the Government determines the Non -Federal Sponsor must provide, in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with acquisition of such lands, easements, and rights -of -way. Prior to the end of the period of construction, the Non -Federal Sponsor shall acquire all lands, easements, and rights -of -way set forth in such descriptions. Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non - Federal Sponsor shall provide the Government with authorization for entry to all lands, easements, and rights -of -way the Government determines the Non -Federal Sponsor must provide for that contract. For so long as the Project remains authorized, the Non -Federal Sponsor shall ensure that lands, easements, and rights - of -way that the Government determines to be required for the operation and maintenance of the Project and that were provided by the Non -Federal Sponsor are retained in public ownership for uses compatible with the authorized purposes of the Project. B. The Government, after consultation with the Non -Federal Sponsor, shall determine the improvements required on lands, easements, and rights -of -way to enable the proper disposal of dredged or excavated material associated with the construction, operation, and maintenance of the Project. Such improvements may include, but are not necessarily limited to, retaining dikes, wasteweirs, bulkheads, embankments, monitoring features, stilling basins, and de -watering pumps and pipes. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions of such improvements in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with construction of such improvements. Prior to the end of the period of construction, the Non -Federal Sponsor shall provide all improvements set forth in such descriptions. Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non -Federal Sponsor shall prepare plans and specifications for all improvements the Government determines to be required for the proper disposal of dredged or excavated material under that contract, submit such plans and specifications to the Government for approval, and provide such improvements in accordance with the approved plans and specifications. C. The Government, after consultation with the Non -Federal Sponsor, shall determine the relocations necessary for the construction, operation, and maintenance of the Project, including those necessary to enable the removal of borrow materials and the proper disposal of dredged or excavated material. The Government in a timely manner shall provide the Non -Federal Sponsor with general written descriptions, including maps as appropriate, of such relocations in detail sufficient to enable the Non -Federal Sponsor to fulfill its obligations under this paragraph, and shall provide the Non -Federal Sponsor with a written notice to proceed with such relocations. Prior to the end of the period of construction, the Non -Federal Sponsor shall perform or ensure the performance of all relocations as set forth in such descriptions. CED205.PCA 3/12/98 7:34 AM Furthermore, prior to issuance of the solicitation for each Government construction contract, the Non -Federal Sponsor shall prepare or ensure the preparation of plans and specifications for, and perform or ensure the performance of, all relocations the Government determines to be necessary for that contract. D. The Non -Federal Sponsor in a timely manner shall provide the Government with such documents as are sufficient to enable the Government to determine the value of any contribution provided pursuant to paragraph A., B., or C. of this Article. Upon receipt of such documents the Government, in accordance with Article IV of this Agreement and in a timely manner, shall determine the value of such contribution, include such value in total project costs, and afford credit for such value toward the Non -Federal Sponsor's share of total project costs. E. The Non -Federal Sponsor shall comply with the applicable provisions of the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970, Public Law 91-646, as amended by Title IV of the Surface Transportation and Uniform Relocation Assistance Act of 1987 (Public Law 100-17), and the Uniform Regulations contained in 49 C.F.R. Part 24, in acquiring lands, easements, and rights -of -way required for the construction, operation, and maintenance of the Project, including those necessary for relocations, borrow materials, and dredged or excavated material disposal, and shall inform all affected persons of applicable benefits, policies, and procedures in connection with said Act. ARTICLE IV -- CREDIT FOR VALUE OF LANDS, RELOCATIONS, AND DISPOSAL AREAS A. The Non -Federal Sponsor shall receive credit toward its share of total project costs for the value of the lands, easements, rights -of -way, and suitable borrow and dredged or excavated material disposal areas that the Non -Federal Sponsor must provide pursuant to Article III of this Agreement, and for the value of the relocations that the Non -Federal Sponsor must perform or for which it must ensure performance pursuant to Article III of this Agreement. However, the Non -Federal Sponsor shall not receive credit for the value of any lands, easements, rights -of -way, relocations, or borrow and dredged or excavated material disposal areas that have been provided previously as an item of cooperation for another Federal project. The Non -Federal Sponsor also shall not receive credit for the value of lands, easements, rights -of -way, relocations, or borrow and dredged or excavated material disposal areas to the extent that such items are provided using Federal funds unless the Federal granting agency verifies in writing that such credit is expressly authorized by statute. B. For the sole purpose of affording credit in accordance with this Agreement, the value of lands, easements, and rights -of -way, including those necessary for relocations, borrow materials, and dredged or excavated material disposal, shall be CED205.PCA 3/12/98 7:34 AM the fair market value of the real property interests, plus certain incidental costs of acquiring those interests, as determined in accordance with the provisions of this paragraph. 1. Date of Valuation. The fair market value of lands, easements, or rights - of -way owned by the Non -Federal Sponsor on the effective date of this Agreement shall be the fair market value of such real property interests as of the date the Non - Federal Sponsor provides the Government with authorization for entry thereto. The fair market value of lands, easements, or rights -of -way acquired by the Non -Federal Sponsor after the effective date of this Agreement shall be the fair market value of such real property interests at the time the interests are acquired. 2. General Valuation Procedure. Except as provided in paragraph B.3. of this Article, the fair market value of lands, easements, or rights -of -way shall be determined in accordance with paragraph B.2.a. of this Article, unless thereafter a different amount is determined to represent fair market value in accordance with paragraph B.2.b. of this Article. a. The Non -Federal Sponsor shall obtain, for each real property interest, an appraisal that is prepared by a qualified appraiser who is acceptable to the Non - Federal Sponsor and the Government. The appraisal must be prepared in accordance with the applicable rules of just compensation, as specified by the Government. The fair market value shall be the amount set forth in the Non -Federal Sponsor's appraisal, if such appraisal is approved by the Government. In the event the Government does not approve the Non -Federal Sponsor's appraisal, the Non -Federal Sponsor may obtain a second appraisal, and the fair market value shall be the amount set forth in the Non -Federal Sponsor's second appraisal, if such appraisal is approved by the Government. In the event the Government does not approve the Non -Federal Sponsor's second appraisal, or the Non -Federal Sponsor chooses not to obtain a second appraisal, the Government shall obtain an appraisal, and the fair market value shall be the amount set forth in the Government's appraisal, if such appraisal is approved by the Non -Federal Sponsor. In the event the Non -Federal Sponsor does not approve the Government's appraisal, the Government, after consultation with the Non -Federal Sponsor, shall consider the Government's and the Non -Federal Sponsor's appraisals and determine an amount based thereon, which shall be deemed to be the fair market value. b. Where the amount paid or proposed to be paid by the Non -Federal Sponsor for the real property interest exceeds the amount determined pursuant to paragraph B.2.a. of this Article, the Government, at the request of the Non -Federal Sponsor, shall consider all factors relevant to determining fair market value and, in its sole discretion, after consultation with the Non -Federal Sponsor, may approve in writing an amount greater than the amount determined pursuant to paragraph B.2.a. of this Article, but not to exceed the amount actually paid or proposed to be paid. If the Government approves such an amount, the fair market value shall be the lesser of the approved amount or the amount paid by the Non -Federal Sponsor, but no less than the amount determined pursuant to paragraph B.2.a. of this Article. CED205.PCA 3/12/98 7:34 AM 3. Eminent Domain Valuation Procedure. For lands, easements, or rights - of -way acquired by eminent domain proceedings instituted after the effective date of this Agreement, the Non -Federal Sponsor shall, prior to instituting such proceedings, submit to the Government notification in writing of its intent to institute such proceedings and an appraisal of the specific real property interests to be acquired in such proceedings. The Government shall have 60 days after receipt of such a notice and appraisal within which to review the appraisal, if not previously approved by the Government in writing. a. If the Government previously has approved the appraisal in writing, or if the Government provides written approval of, or takes no action on, the appraisal within such 60-day period, the Non -Federal Sponsor shall use the amount set forth in such appraisal as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. b. If the Government provides written disapproval of the appraisal, including the reasons for disapproval, within such 60-day period, the Government and the Non -Federal Sponsor shall consult in good faith to promptly resolve the issues or areas of disagreement that are identified in the Government's written disapproval. If, after such good faith consultation, the Government and the Non - Federal Sponsor agree as to an appropriate amount, then the Non -Federal Sponsor shall use that amount as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. If, after such good faith consultation, the Government and the Non -Federal Sponsor cannot agree as to an appropriate amount, then the Non -Federal Sponsor may use the amount set forth in its appraisal as the estimate of just compensation for the purpose of instituting the eminent domain proceeding. c. For lands, easements, or rights -of -way acquired by eminent domain proceedings instituted in accordance with sub -paragraph B.3. of this Article, fair market value shall be either the amount of the court award for the real property interests taken, to the extent the Government determined such interests are required for the construction, operation, and maintenance of the Project, or the amount of any stipulated settlement or portion thereof that the Government approves in writing. 4. Incidental Costs. For lands, easements, or rights -of -way acquired by the Non -Federal Sponsor within a five-year period preceding the effective date of this Agreement, or at any time after the effective date of this Agreement, the value of the interest shall include the documented incidental costs of acquiring the interest, as determined by the Government, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocabiiity, and allowability of costs. Such incidental costs shall include, but not necessarily be limited to, closing and title costs, appraisal costs, survey costs, attorney's fees, plat maps, and mapping costs, as well as the actual amounts expended for payment of any Public Law 91-646 relocation assistance benefits provided in accordance with Article III.E. of this Agreement. C. After consultation with the Non -Federal Sponsor, the Government shall determine the value of relocations in accordance with the provisions of this paragraph. n CED205.PCA 3/12/98 7:34 AM 1. For a relocation other than a highway, the value shall be only that portion of relocation costs that the Government determines is necessary to provide a functionally equivalent facility, reduced by depreciation, as applicable, and by the salvage value of any removed items. 2. For a relocation of a highway, the value shall be only that portion of relocation costs that would be necessary to accomplish the relocation in accordance with the design standard that the State of Washington would apply under similar conditions of geography and traffic load, reduced by the salvage value of any removed items. 3. Relocation costs shall include, but not necessarily be limited to, actual costs. of performing the relocation; planning, engineering and design costs; supervision and administration costs; and documented incidental costs associated with performance of the relocation, but shall not include any costs due to betterments, as determined by the Government, nor any additional cost of using new material when suitable used material is available. Relocation costs shall be subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. D. The value of the improvements made to lands, easements, and rights -of -way for the proper disposal of dredged or excavated material shall be the costs of the improvements, as determined by the Government, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. Such costs shall include, but not necessarily be limited to, actual costs of providing the improvements; planning, engineering and design costs; supervision and administration costs; and documented incidental costs associated with providing the improvements, but shall not include any costs due to betterments, as determined by the Government. ARTICLE V -- PROJECT COORDINATION TEAM A. To provide for consistent and effective communication, the Non -Federal Sponsor and the Government, not later than 30 days after the effective date of this Agreement, shall appoint named senior representatives to a Project Coordination Team. Thereafter, the Project Coordination Team shall meet regularly until the end of the period of construction. The Government's Project Manager and a counterpart named by the Non -Federal Sponsor shall co-chair the Project Coordination Team. B. The Government's Project Manager and the Non -Federal Sponsor's counterpart shall keep the Project Coordination Team informed of the progress of construction and of significant pending issues and actions, and shall seek the views of the Project Coordination Team on matters that the Project Coordination Team generally oversees. C. Until the end of the period of construction, the Project Coordination Team shall generally oversee the Project, including issues related to design; plans and specifications; scheduling; real property and relocation requirements; real property acquisition; contract awards and modifications; contract costs; the Government's cost CED205. PCA 3/12/98 7:34 AM projections; final inspection of the entire Project or functional portions of the Project; preparation of the proposed OMRR&R Manual; anticipated requirements and needed capabilities for performance of operation, maintenance, repair, replacement, and rehabilitation of the Project; and other related matters. D. The Project Coordination Team may make recommendations that it deems' warranted to the District Engineer on matters that the Project Coordination Team generally oversees, including suggestions to avoid potential sources of dispute. The. Government in good faith shall consider the recommendations of the Project Coordination Team. The Government, having the legal authority and responsibility for construction of the Project, has the discretion to accept, reject, or modify the Project Coordination Team's recommendations. E. The costs of participation in the Project Coordination Team shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. ARTICLE VI -- METHOD OF PAYMENT A. The Government shall maintain current records of contributions provided by the parties and current projections of total project costs and costs due to betterments. At least quarterly, the Government shall provide the Non -Federal Sponsor with a report setting forth all contributions provided to date and the current projections of total project costs, of total costs due to betterments, of the components of total project costs, of each party's share of total project costs, of the Non -Federal Sponsor's total cash contributions required in accordance with Articles II.B., II.D., and II.E. of this Agreement, and of the non -Federal proportionate share. On the effective date of this Agreement, total project costs are projected to be $6,648,000, and the Non -Federal Sponsor's cash contribution required under Article II.D. of this Agreement is projected to be $2,327,000. Such amounts are estimates subject to adjustment by the Government and are not to be construed as the total financial responsibilities of the Government and the Non -Federal Sponsor. B. The Non -Federal Sponsor shall provide the cash contribution required under Articles II.D.1. a -rid II.D.3. of this Agreement in accordance with the following provisions: Not less than 30 calendar days prior to the scheduled date for issuance of the solicitation for the first construction contract, the Government shall notify the Non -Federal Sponsor in writing of such scheduled date and the funds the Government determines to be required from the Non -Federal Sponsor to meet its projected cash contribution under Articles II.D.1. and II.D.3. of this Agreement. Not later than such scheduled date, the Non -Federal Sponsor shall provide the Government with the full amount of the required funds by delivering a check payable to "FAO, USAED, Portland (Seattle)" to the District Engineer. The Government shall draw from the funds provided by the Non -Federal Sponsor such sums as the Government deems necessary to cover: (a) the non -Federal proportionate share of financial obligations for construction incurred prior to the commencement of the period of construction; and (b) the non -Federal proportionate share of financial obligations for construction as they are incurred during the period of construction. In the event the Government determines that the Non -Federal Sponsor must provide 12 CED205.PCA 3/12/98 7:34 AM additional funds to meet the Non -Federal Sponsor's cash contribution, the Government shall notify the Non -Federal Sponsor in writing of the additional funds required. Within 60 calendar days thereafter, the Non -Federal Sponsor shall provide the Government with a check for the full amount of the additional required funds. C. In advance of the Government incurring any financial obligation associated with additional work under Article II.B. or II.E. of this Agreement, the Non -Federal Sponsor shall provide the Government with the full amount of the funds required to pay for such additional work by delivering a check payable to "FAO, USAED, Portland (Seattle)" to the District Engineer. The Government shall draw from the funds provided by the Non -Federal Sponsor such sums as the Government deems necessary to cover the Government's financial obligations for such additional work as they are incurred. In the event the Government determines that the Non -Federal Sponsor must provide additional funds to meet its cash contribution, the Government shall notify the Non -Federal Sponsor in writing of the additional funds required. Within 30 calendar days thereafter, the Non -Federal Sponsor shall provide the Government with a check for the full amount of the additional required funds. D. Upon completion of the Project or termination of this Agreement, and upon resolution of all relevant claims and appeals, the Government shall conduct a final accounting and furnish the Non -Federal Sponsor with the results of the final accounting. The final accounting shall determine total project costs, each party's contribution provided thereto, and each party's required share thereof, The final accounting also shall determine costs due to betterments and the Non -Federal Sponsor's cash contribution provided pursuant to Article II.B. of this Agreement. 1. In the event the final accounting shows that the total contribution provided by the Non -Federal Sponsor is less than its required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement, the Non -Federal Sponsor shall, no later than 90 calendar days after receipt of written notice, make a cash payment to the Government of whatever sum is required to meet the Non -Federal Sponsor's required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement. 2. In the event the final accounting shows that the total contribution provided by the Non -Federal Sponsor exceeds its required share of total project costs plus costs due to any betterments provided in accordance with Article II.B. of this Agreement, the Government shall, subject to the availability of funds, refund the excess to the Non -Federal Sponsor no later than 90 calendar days after the final accounting is complete; however, the Non -Federal Sponsor shall not be entitled to any refund of the 5 percent cash contribution required pursuant to Article II.D-1. of this Agreement. In the event existing funds are not available to refund the excess to the Non -Federal Sponsor, the Government shall seek such appropriations as are necessary to make the refund. 13 CED205.PCA 3/12/98 7:34 AM ARTICLE VII -- DISPUTE RESOLUTION As a condition precedent to a party bringing any suit for breach of this Agreement, that party must first notify the other party in writing of the nature of the purported breach and seek in good faith to resolve the dispute through negotiation. If the parties cannot resolve the dispute through negotiation, they may agree to a mutually acceptable method of non -binding alternative dispute resolution with a qualified third party acceptable to both parties. The parties shall each pay 50 percent of any costs for the services provided by such a third party as such costs are incurred. The existence of a dispute shall not excuse the parties from performance pursuant to this Agreement. ARTICLE VIII -- OPERATION, MAINTENANCE, REPAIR, REPLACEMENT, AND REHABILITATION (OMRR&R) A. Upon notification in accordance with Article II. C. of this Agreement and for so long as the Project remains authorized, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the entire Project or the functional portion of the Project, at no cost to the Government, in a manner compatible with the Project's authorized purposes and in accordance with applicable Federal and State laws as provided in Article XI of this Agreement and specific directions prescribed by the Government in the OMRR&R Manual and any subsequent amendments thereto. B. The Non -Federal Sponsor hereby gives the Government a right to enter, at reasonable times and in a reasonable manner, upon property that the Non -Federal Sponsor owns or controls for access to the Project for the purpose of inspection and, if necessary, for the purpose of completing, operating, maintaining, repairing, replacing, or rehabilitating the Project. If an inspection shows that the Non -Federal Sponsor for any reason is failing to perform its obligations under this Agreement, the Government shall send a written notice describing the non-performance to the Non -Federal Sponsor. If, after 30 calendar days from receipt of notice, the Non -Federal Sponsor continues to fail to perform, then the Government shall have the right to enter, at reasonable times and in a reasonable manner, upon property that the Non -Federal Sponsor owns or controls for access to the Project for the purpose of completing, operating, maintaining, repairing, replacing, or rehabilitating the Project. No completion, operation, maintenance, repair, replacement, or rehabilitation by the Government shall operate to relieve the Non -Federal Sponsor of responsibility to meet the Non -Federal Sponsor's obligations as set forth in this Agreement, or to preclude the Government from pursuing any other remedy at law or equity to ensure faithful performance pursuant to this Agreement. ARTICLE TX -- INDEMNIFICATION The Non -Federal Sponsor shall hold and save the Government free from all damages arising from the construction, operation, maintenance, repair, replacement, and rehabilitation of the Project and any Project -related betterments, except for damages due to the fault or negligence of the Government or its contractors. 14 CED205.PCA 3/12/98 7:34 AM ARTICLE X -- MAINTENANCE OF RECORDS AND AUDIT A. Not later than 60 calendar days after the effective date of this Agreement, the Government and the Non -Federal Sponsor shall develop procedures for keeping books, records, documents, and other evidence pertaining to costs and expenses incurred pursuant to this Agreement. These procedures shall incorporate, and apply as appropriate, the standards for financial management systems set forth in the Uniform Administrative Requirements for Grants and Cooperative Agreements to State and Local Governments at 32 C.F.R. Section 33.20. The Government and the Non - Federal Sponsor shall maintain such books, records, documents, and other evidence in accordance with these procedures and for a minimum of three years after the period of construction and resolution of all relevant claims arising therefrom. To the extent permitted under applicable Federal laws and regulations, the Government and the Non -Federal Sponsor shall each allow the other to inspect such books, documents, records, and other evidence. B. Pursuant to 32 C.F.R. Section 33.26, the Non -Federal Sponsor is responsible for complying with the Single Audit Act of 1984, 31 U.S.C. Sections 7501-7507, as implemented by Office of Management and Budget (OMB) Circular No. A-133 and Department of Defense Directive 7600.10. Upon request of the Non -Federal Sponsor and to the extent permitted under applicable Federal laws and regulations, the Government shall provide to the Non -Federal Sponsor and independent auditors any information necessary to enable an audit of the Non -Federal Sponsor's activities under this Agreement. The costs of any non -Federal audits performed in accordance with this paragraph shall be allocated in accordance with the provisions of OMB Circulars A-87 and A-133, and such costs as are allocated to the Project shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. C. In accordance with 31 U.S.C. Section 7503, the Government may conduct audits in addition to any audit that the Non -Federal Sponsor is required to conduct under the Single Audit Act. Any such Government audits shall be conducted in accordance with Government Auditing Standards and the cost principles in OMB Circular No. A-87 and other applicable cost principles and regulations. The costs of Government audits performed in accordance with this paragraph shall be included in total project costs and cost shared in accordance with the provisions of this agreement. ARTICLE XI -- FEDERAL AND STATE LAWS In the exercise of their respective rights and obligations under this Agreement, the Non -Federal Sponsor and the Government agree to comply with all applicable Federal and State laws -and regulations, including, but not limited to, Section 601 of the Civil Rights Act of 1964, Public Law 88-352 (42 U.S.C. 2000d), and Department of Defense Directive 5500.11 issued pursuant thereto, as well as Army Regulations 600- 7, entitled "Nondiscrimination on the Basis of Handicap in Programs and Activities Assisted or Conducted by the Department of the Army". 15 CED205.PCA 3/12/98 7:34 AM ARTICLE XII -- RELATIONSHIP OF PARTIES A. In the exercise of their respective rights and obligations under this Agreement, the Government and the Non -Federal Sponsor each act in an independent capacity, and neither is to be considered the officer, agent, or employee of the other. B. In the exercise of its rights and obligations under this Agreement, neither party shall provide, without the consent of the other party, any contractor with a release that waives or purports to waive any rights such other party may have to seek relief or redress against such contractor either pursuant to any cause of action that such other party may have or for violation of any law. ARTICLE XIII -- OFFICIALS NOT TO BENEFIT No member of or delegate to the Congress, nor any resident commissioner, shall be admitted to any share or part of this Agreement, or to any benefit that may arise therefrom. ARTICLE XIV -- TERMINATION OR SUSPENSION A. If at any time the Non -Federal Sponsor fails to fulfill its obligations under Article II.B., II.D., II.E., VI, or XVIII.C. of this Agreement, the Government shall terminate this Agreement or suspend future performance under this Agreement unless the Assistant Secretary of the Army (Civil Works) determines that continuation of work on the Project is in the interest of the United States or is necessary in order to satisfy agreements with any other non -Federal interests in connection with the Prc j ect. B. If the Government fails to receive annual appropriations in amounts sufficient to meet Project expenditures for the then -current or upcoming fiscal year, the Government shall so notify the Non -Federal Sponsor in writing, and 60 calendar days thereafter either party may elect without penalty to terminate this Agreement or to suspend future performance under this Agreement. In the event that either party elects to suspend future performance under this Agreement pursuant to this paragraph, such suspension shall remain in effect until such time as the Government receives sufficient appropriations or until either the Government or the Non -Federal Sponsor elects to terminate this Agreement. C. In the event that either party elects to terminate this Agreement pursuant to this Article or Article XV of this Agreement, both parties shall conclude their activities relating to the Project and proceed to a final accounting in accordance with Article VI.D. of this Agreement. D. Any termination of this Agreement or suspension of future performance under this Agreement in accordance with this Article or Article XV of this Agreement shall not relieve the parties of liability for any obligation previously incurred. Any delinquent payment shall be charged interest at a rate, to be determined by the 16 CED205.PCA 3/12/98 7:34 AM Secretary of the Treasury, equal to 150 per centum of the average bond equivalent rate of the 13-week Treasury bills auctioned immediately prior to the date on which such payment became delinquent, or auctioned immediately prior to the beginning of each additional 3-month period if the period of delinquency exceeds 3 months. ARTICLE XV -- HAZARDOUS SUBSTANCES A. After execution of this Agreement and upon direction by the District Engineer, the Non -Federal Sponsor shall perform, or cause to be performed, any investigations for hazardous substances that the Government or the Non -Federal Sponsor determines to be necessary to identify the existence and extent of any hazardous substances regulated under the Comprehensive Environmental Response, Compensation, and Liability Act (hereinafter "CERCLA"), 42 U.S.C. Sections 9601- 9675, that may exist in, on, or under lands, easements, and rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project. However, for lands that the Government determines to be subject to the navigation servitude, only the Government shall perform such investigations unless the District Engineer provides the Non -Federal Sponsor with prior specific written direction, in which case the Non - Federal Sponsor shall perform such investigations in accordance with such written direction. All actual costs incurred by the Non -Federal Sponsor for such investigations for hazardous substances shall be included in total project costs and cost shared in accordance with the provisions of this Agreement, subject to an audit in accordance with Article X.C. of this Agreement to determine reasonableness, allocability, and allowability of costs. B. In the event it is discovered through any investigation for hazardous substances or other means that hazardous substances regulated under CERCLA exist in, on, or under any lands, easements, or rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project, the Non -Federal Sponsor and the Government shall provide prompt written notice to each other, and the Non - Federal Sponsor shall not proceed with the acquisition of the real property interests until both parties agree that the Non -Federal Sponsor should proceed. C. The Government and the Non -Federal Sponsor shall determine whether to initiate construction of the Project, or, if already in construction, whether to continue with work on the Project, suspend future performance under this Agreement, or terminate this Agreement for the convenience of the Government, in any case where hazardous substances regulated under CERCLA are found to exist in, on, or under any lands, easements, or rights -of -way that the Government determines, pursuant to Article III of this Agreement, to be required for the construction, operation, and maintenance of the Project. Should the Government and the Non -Federal Sponsor determine to initiate or continue with construction after considering any liability that may arise under CERCLA, the Non -Federal Sponsor shall be responsible, as between the Government and the Non -Federal Sponsor, for the costs of clean-up and response, to include the costs of any studies and investigations necessary to determine an appropriate response to the contamination. Such costs shall not be considered a part of total project costs. In the event the Non -Federal Sponsor fails to provide any funds 17 CED205.PCA 3/12/98 7:34 AM necessary to pay for clean up and response costs or to otherwise discharge the Non - Federal Sponsor's responsibilities under this paragraph upon direction by the Government, the Government may, in its sole discretion, either terminate this Agreement for the convenience of the Government, suspend future performance under this Agreement, or continue work on the Project. D. The Non -Federal Sponsor and the Government shall consult with each other in accordance with Article V of this Agreement in an effort to ensure that responsible parties bear any necessary clean up and response costs as defined in CERCLA. Any decision made pursuant to paragraph C. of this Article shall not relieve any third party from any liability that may arise under CERCLA. E. As between the Government and the Non -Federal Sponsor, the Non -Federal Sponsor shall be considered the operator of the Project for purposes of CERCLA liability. To the maximum extent practicable, the Non -Federal Sponsor shall operate, maintain, repair, replace, and rehabilitate the Project in a manner that will not cause liability to arise under CERCLA. ARTICLE XVI -- NOTICES A. Any notice, request, demand, or other communication required or permitted to be given under this Agreement shall be deemed to have been duly given if in writing and either delivered personally or by telegram or mailed by first-class, registered, or certified mail, as follows: If to the Non -Federal Sponsor: Mayor, City of Renton 200 Mill Street Renton, Washington 98055 If to the Government: District Engineer U.S. Army Engineer District P. O. Box 3755 Seattle, Washington 98124-3755 B. A party may change the address to which such communications are to be directed by giving written notice to the other party in the manner provided in this Article. is CED205.PCA 3/12/98 7:34 AM C. Any notice, request, demand, or other communication made pursuant to this Article shall be deemed -to have been received by the addressee at the earlier of such time as it is actually received or seven calendar days after it is mailed. ARTICLE XVII -- CONFIDENTIALITY To the extent permitted by the laws governing each party, the parties agree to maintain the confidentiality of exchanged information when requested to do so by the providing party. ARTICLE XVIII -- HISTORIC PRESERVATION A. The costs of identification, survey and evaluation of historic properties shall be included in total project costs and cost shared in accordance with the provisions of this Agreement. B. As specified in Section 7(a) of Public Law 93-291 (16 U.S.C. Section 469c(a)), the costs of mitigation and data recovery activities associated with historic preservation shall be borne entirely by the Government and shall not be included in total project costs, up to the statutory limit of one percent of the total amount the Government is authorized to expend for the Project. C. The Government shall not incur costs for mitigation and data recovery that exceed the statutory one percent limit specified in paragraph B. of this Article unless and until the Assistant Secretary of the Army (Civil Works) has waived that limit in accordance with Section 208(3) of Public Law 96-515 (16 U.S.C. Section 469c-2(3)). Any costs of mitigation and data recovery that exceed the one percent limit shall not be included in total project costs but shall be cost shared between the Non -Federal Sponsor and the Government consistent with the minimum non -Federal cost sharing requirements for the underlying flood control purpose, as follows: 35 percent borne by the Non -Federal Sponsor, and 65 percent borne by the Government. ARTICLE XIX -- LIMITATION ON GOVERNMENT EXPENDITURES In accordance with Section 205 of the Flood Control Act of 1948, as amended, the Government's financial participation in the Project is limited to $5,000,000 which shall include all Federal funds expended by the Government for planning, design, and implementation of the project except for coordination account funds expended prior to the first work allowance for study initiation. Notwithstanding any other provision of this Agreement, the Non -Federal Sponsor shall be responsible for all costs in excess of this amount. 19 CED205.PCA 3/12/98 7:34 AM IN WITNESS WHEREOF, the parties hereto have executed this Agreement, which shall become effective upon the date it is signed by the District Engineer. THE DEPARTMENT OF THE ARMY BY: J M. RIGSBYCIMES lonel, Corps of Engineers Seattle District Engineer DATE: THE CITY OF RENTON, WASH GTON BY: JESSE TANNER Mayor DATE; CED205.PCA 3/12/98 7:34 AEI 0 CERTIFICATE OF AUTHORITY I, LAWRENCE J. WARREN, do hereby certify that I am the principal legal officer of the City of Renton, Washington, that the City of Renton is a legally constituted. public body with full authority and legal capability to perform the terms of the Agreement between the Department of the Army and the City of Renton, Washington, in connection with the Cedar River, Renton, Washington Flood Damage Reduction Project, and to pay damages in accordance with the terms of this Agreement, if necessary, in the event of the failure to perform, as required by Section 221 of Public Law 91-911 (42 U.S.C. Section 1962d-5b), and that the persons who have executed this Agreement on behalf of the City of Renton have acted within their statutory authority. IN WITNESS WHEREOF, I have made and executed this certification this (ot. day of 1998. BY: LAWRENCE J. WARREN Renton City Attorney 21 CED205.PCA 3/12/98 7:34 AM CERTIFICATION REGARDING LOBBYING The undersigned certifies, to the best of his or her knowledge and belief that: (1) No Federal appropriated funds have been paid or will be paid, by or on behalf of the undersigned, to any person for influencing or attempting to influence an officer or employee of any agency; a Member of Congress, an officer or employee of Congress, or an employee of a Member of Congress in connection with the awarding of any Federal contract, the making of any Federal grant, the making of any Federal loan, the entering into of any cooperative agreement, and the extension, continuation, renewal, amendment, or modification of any Federal contract, grant, loan, or cooperative agreement. (2) If any funds other than Federal appropriated funds have been paid or will be paid to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress, an officer or employee of Congress, or an employee of a Member of Congress in connection with this Federal contract, grant, loan, or cooperative agreement, the undersigned shall complete and submit Standard Form-LLL, "Disclosure Form to Report Lobbying," in accordance with its instructions. (3) The undersigned shall require that the language of this certification be included in the award documents for all subawards at all tiers (including subcontracts, subgrants, and contracts under grants, loans, and cooperative agreements) and that all subrecipients shall certify and disclose accordingly. This certification is a material representation of fact upon which reliance was placed when this transaction was made or' entered into. Submission of this certification is a prerequisite for making or entering into this transaction imposed by Section 1352, Title 31, U.S. Code. Any person who fails to file the required certification shall be subject to a civil penalty of not less than $10,000 and not more than $100,000 for each such failure. CITY OF RENTON, WASHINGTON BY: SSE TANNER Mayor DATE: % 22 CED205.PCA 3/12/98 7:34 AM Appendix B: Flood Control Regulations Pt. 208 of Transportation, and 558633 CFR Ch. It (� 7_ _ Commerce. Department of 98 Edition) . who will provide (vi) Data provided by ports, to Person or, entity cilities, and cal fa- P the requesting State p�ogrtuni Y �� a reasonable o ments, or Ibcal govern- thesuo resent evidence re P (vii) Data from ance, modification, grev- publications, trade journals and °cation of the proposed order, or rev - MR) Site vier Re- sits and i after, the Director of the There- nspections. sources Center shall issue a final order, (2) Notice of Violation, Once a report_ ing violation is determined ce have r-t se Additional Remedies. Appropriate curred, cases may also be referred theocaI the Chief of the U•S• Attorne Commerce Statistics Center will notify y for prosecution, collection, injunctive, and othererelief the. responsible party and allow 30 days for the reports to be Y by the Chief of the Waterborne Com_ fact. If the re orts filed after the merce Statistics Center. this 30-da P are not filed within I56 FR 13765, Apr, q 19911 y notice period, then priate civil or criminal actions will be PART Zi]8— undertaken b aPPro- neers, including the Army Corps of Engl. FLOOD CONTROL criminal penalties forop°sal of civil or REGULATIONS nonco Typical cases for criminal orcivilpnce. Sec. tion include,208.10 Local flood those include, but are not limited to nance and Protection works; mndfa. eased, which are willful, re_ cilities. °peration of structures and Fa - the opinion have a substantial impact in 208.11 Regulacions for use of Storage pinion of the Chief of Gated for flood control or f Storalon and - borne Commerce Statistics Center. 8 allo- or project operation at reservoirs subject (3) Administrative Assessment Co Prescription of rules and re Civil Penalties. Civil penalties assessed in the Following of ce the Secretary of the Arm regulations In. Ceres[ of flood control and navigaclon in - a) Authorization. If g manner. may a 208.19 Of Ford Waterborne C he Chief of the (Mansfield Dam Ford Dam and Reservoir ter finds Commerce Statistics Cen- rado River, an Lake Travis), that a person or 208.22 Tex.Colo Waterborne to com 1 entity has uctes Dam die and South Concho Rivers Reservoir, ssTex ir, sions specified herein, any Of the prov;_ 208.25 Mid assess he is authorized Pensacola Dam and Reservoir, Grand a civil penalty (Neosho) River, With the Class 1 Y in accordance 208.26 Altus D Okla. 33 CFR part 326 penalty provisions of Red River, an' and Reservoir, North Fork that the Provided, however, 208.27 ForCobb Da specifically inures in 33 part 326 ) Creek, p m and Reservoir, Pond CFR (Cobb Oklahoma. y implementing the Clean 208.28 Foss D Water Act (33 U,S,C, 1319(g)(q)) Public River• Oklam ahoma Reservoir, Washita notice, comment p 208.29 Ukiah°n'a. ordination, period, and state co- Arbuckle Dam and shall not apply, buckles. Rack Creek, O Lake Of the Ar- (H) Initiation. The Chief of the 208.n Sanford Dam Okla. terbarne Commerce Wa- nadian and Lake Meredith, Ca - will prepare and Statistics Center 208.33 Cheney Dam . civil penalty Process a proposed Fork of Ninnescah and Reservoir. North y order which shall state 208.34 Norm Kann. the amount of the penalty[.tittle Rive Darn and Lake r's. Thunderbird, seised, describe b CO be as_ 209.82 Okla ity the nature of heevioolation able Sand in_ Hetch Hetchy, Cher dicate on Pedro Dams and Cherry Valley, and the applicable Reservoirs. CFR part 326. Provisions of 33 709. u1NORtTY' Sec. 7, 58 Scat. 840; 33 U.S.C. Mi) Hearing Re nests. a Proposed civil q Recipients of § 208 10 a written request order may file Local flood protection w quest for a hearing Y maintenance and works; proceeding. This request shall r °Cher structures and es. Aeration of specified in 33 CFR be as (a) General. be addressed Part 326 and shall (1) The structures and fa - Water LO the Director of the cilities constructed b Resources Support Center, Case States for local Y the United Building, Forts Support t n y be continuous) flood protection shall Virginia 22060_ manner and o Y maintained Aerated at such in such a times and 96 Corps of Engineers, Dept of the Army, DoD for such periods as may be necessary to obtain the maximum benefits. (2) The State, political subdivision thereof, or other responsible local agency, which furnished assurance that it will maintain and operate flood con- trol works in accordance with regula- tions prescribed by the Secretary of the Army, as required by law, shall ap- point a permanent committee consist- ing of or headed by an official herein- after called the "Superintendent," who shall be responsible for the develop- ment and maintenance of, and directly in charge of, an organization respon- sible for the efficient operation and maintenance of all of the structures and facilities during flood periods and for continuous inspection and mainte- nance of the project works during peri- ods of low water. all without cost to the United States. (3) A reserve supply of materials needed during a flood emergency shall be kept on hand at all times. (4) No encroachment or trespass which * will adversely affect the effi- cient operation or maintenance of the project works shall be permitted upon the rights -of -way for the protective fa- cilities. (5) No improvement shall be passed over, under, or through the walls. lev- ees, improved channels or floodways, nor shall any excavation or construc- tion be permitted within the limits of the project right-of-way, nor shall any change be made in any feature of the works without prior determination by the District Engineer of the Depart- ment of the Army or his authorized representative that such improvement, excavation, construction, or alteration will not adversely affect the function- ing of the protective facilities. Such improvements or alterations as may be found to be desirable and permissible under the above determination shall be constructed in accordance with stand- ard engineering practice. Advice re- garding the effect of proposed improve- ments or alterations on the function- ing of the project and information con- cerning methods of construction ac- ceptable under standard engineering practice shall be obtained from the District Engineer or, if otherwise ob- tained, shall be submitted for his ap- proval. Drawings or prints showing § 208.10 such improvements or alterations as fi- nally constructed shall be furnished the District Engineer after completion of the work. (6) It shall be the duty of the super- intendent to submit a semiannual re- port to the District Engineer covering inspection, maintenance, and operation of the protective works. (7) The District Engineer or his au- thorized representatives shall have ac- cess at all times to all portions of the protective works. (8) Maintenance measures or repairs which the District Engineer deems nec- essary shall be promptly taken or made. (9) Appropriate measures shall be taken by. local authorities to insure that the activities of all local organiza- tions operating public or private facili- ties connected with the protective works are coordinated with those of the Superintendent's organization dur- ing flood periods. (10) The Department of the Army will furnish local interests with an Oper- ation and Maintenance Manual for each completed project, or separate useful part thereof, to assist them in carrying out their obligations under this part. (b) Levees —(I) Maintenance. The Su- perintendent shall provide at all times such maintenance as may be required to insure serviceability of the struc- tures in time of flood. Measures shall be taken to promote the growth of sod, exterminate burrowing animals, and to provide for routine mowing of the grass and weeds, removal of wild growth and drift deposits, and repair of damage caused by erosion or other forces. Where practicable, measures shall be taken to retard bank erosion by plant- ing of willows or other suitable growth on areas riverward of the levees. Peri- odic inspections shall be made by the Superintendent to insure that the above maintenance measures are being effectively carried out and, further, to be certain that: (i) No unusual settlement, sloughing, or material loss of grade or levee cross section has taken place; (h) No caving has occurred on either the land side or the river side of the levee which might affect the stability of the levee section; 97 § 208.10 (III) No seepage, saturated areas, or sand boils are occurring: (iv) Toe drainage systems and pres- sure relief wells are in -good working condition, and that such facilities are. not becoming clogged; (v) Drains through the levees and gates on said drains are in good work- ing condition; (vi) No revetment work or riprap has been displaced, washed out, or re- moved; (vii) No action is being taken, such as burning grass and weeds during inap- propriate seasons, which will retard or destroy the growth of sod; (viii) Access roads to and on the levee are being properly maintained; (ix) Cattle guards and gates. are in good condition; (x) Crown of- levee is shaped so as to drain readily, and roadway thereon, if any, is well shaped and maintained; (xi) There is no unauthorized grazing or vehicular traffic on the levees; (xii) Encroachments are not being made on the levee right-of-way which might endanger the structure or hinder its proper and efficient functioning during times of emergency. Such inspections shall be made imme- diacely prior to the beginning of the flood season; immediately following each major high water period, and oth- erwise at intervals not exceeding 90 days, and. such intermediate times as may be necessary to insure the best possible care of the levee. Immediate, steps will be taken to correct dan- gerous conditions disclosed by such in- spections. Regular maintenance repair measures shall be accomplished during the appropriate season as scheduled by the Superintendent. (2) Operation, During flood periods the levee shall be patrolled continu- ously to locate possible sand boils or unusual wetness of the landward slope and co be certain that: (i) There are no indications of slides or sloughs developing; (ii) Wave wash or scouring action is not occurring; (iii) No low reaches of leave exist which may be overtopped; (iv) No ocher conditions exist which might endanger the structure. Appropriate advance measures will be taken to insure the availability of ade- 33 CFR Ch. 11 (7-1-98 Edi6on) quate labor and materials to meet all contingencies. Immediate steps will be taken to control any condition which endangers the levee and to repair .the damaged section. (c) Flood walls—(1) Maintenance. Peri- odic inspections shall be made by the Superintendent to be certain that: (i) No seepage, saturated areas, or sand boils are occurring; (ii) No undue settlement has occurred which affects the stability of the wall or its water tightness; (III) No trees exist, the roots of which might extend under the wall and offer accelerated seepage paths: (iv) The concrete has not undergone cracking, chipping, or breaking to an extent which might affect the stability of the wall or its water tightness; (v) There are no encroachments upon the right-of-way which might endanger the structure or hinder its functioning in time of flood; (vi) Care is being exercised to prevent accumulation of trash and debris adja- cent to walls, and to insure that no fires are being built near them; (vii) No bank caving conditions exist riverward of the wall which might en- danger its stability; (viii) Toe drainage systems and pres- sure relief wells are in good working condition, and that such facilities are not becoming clogged. Such inspections shall be made imme- diately prior to the beginning of the flood season, immediately following each major high water period, and oth- erwise at intervals not exceeding 90 days. Measures to eliminate encroach- ments and effect repairs found nec- essary by such inspections shall be un- dertaken • immediately. All repairs shall be accomplished by methods ac- ceptable in standard engineering prac- tice. (2) Operation. Continuous patrol of the wall shall be maintained during flood periods to locate possible leakage at monolith joints or seepage under- neath the wall. Floating plant or boats will not be allowed to lie against or tie up to the wall. Should it become nec- essary during a flood emergency to pass anchor cables over the wall. ade- quate measures shall be taken to pro- tect the concrete and construction joints. Immediate steps shall be taken 4.1 Corps of Engineers, Dept. of the Army, DoD to correct any condition which endan- gers the stability of the wall. (d) Drainage structures --(I) Mainte- nance. Adequate measures shall be taken to insure that inlet and outlet channels are kept open and that trash, drift, or debris is not allowed to accu- mulate near drainage structures. Flap gates and manually operated gates and valves on drainage structures shall be examined, oiled, and trial operated at least once every 90 days. Where drain- age structures are provided with stop log or other emergency closures, the condition of the equipment and its housing shall be inspected regularly and a trial installation of the emer- gency closure shall be made at least once each year. Periodic inspections shall be made by the Superintendent to be certain that: (i) Pipes, gates, operating mecha- nism, riprap, and headwalls are in good condition; (ii) Inlet and outlet channels are open; (III) Care is being exercised to pre- vent the accumulation of trash and de- bris near the structures and that no fires are being built near bituminous coated pipes; (iv) Erosion is not occurring adjacent to the structure which might endanger its water tightness or stability. Immediate steps will be taken to repair damage, replace missing or broken parts, or. remedy adverse conditions disclosed by such inspections. (2) Operation. Whenever high water conditions impend, all gates will be in- spected a short -time before water reaches the invert of the pipe and any object which might prevent closure of the gate shall be removed. Automatic gates shall be closely observed until it has been ascertained that they are se- curely closed. Manually operated gates and valves shall be closed as necessary to prevent inflow of flood water. All drainage structures in levees shall be inspected frequently during floods to ascertain whether seepage is taking place along the lines of their contact with the embankment. Immediate steps shall be taken to correct any ad- verse condition. (e) Closure structures —(I) Xfainte- nance. Closure structures for traffic openings shall be inspected by the Su- § 208.10 perintendent every 90 days to be cer- tain that: (i) No parts are missing; (ii) Metal parts are adequately cov- ered with paint; (III) All movable parts are in satisfac- tory working order; (iv) Proper closure can be made promptly when necessary; (v) Sufficient materials ' are on hand for the erection of sand bag closures and that the location of such materials will be readily accessible in times of emergency. Tools and parts shall not be removed for other use. Trial erections of one or more closure structures shall be made once each year, alternating the struc- tures chosen so that each gate will be erected at least once in each 3-year pe- riod. Trial erection of all closure struc- tures shall be made whenever a change is made in key operating personnel. Where railroad operation makes trial erection of a closure structure infeasi- ble, rigorous inspection and drill of op- erating personnel may be substituted therefor. Trial erection of sand bag clo- sures is not required. Closure materials will be carefully checked prior to and following flood periods, and damaged or missing parts shall be repaired or re- placed immediately. (2) Operation. Erection of each mov- able closure shall be started in suffi- cient time to permit completion before flood waters reach the top of the struc- ture sill. Information regarding the proper method of erecting each individ- ual closure structure, together with an estimate of the time required by an ex- perienced crew to complete its erection will be given. in the Operation and Maintenance Manual which will be fur- nished local interests upon completion of the project. Closure structures will be inspected frequently during flood periods to ascertain that no undue leakage is occurring and that drains provided to care for ordinary leakage are functioning properly. Boats or floating plant shall not be allowed to tie up to closure structures or to dis- charge passengers or cargo over them. (f) Pumping plants —(I) Maintenance. Pumping plants shall be inspected by the Superintendent at intervals not to exceed 30 days during flood seasons and 99 § 208.10 90 days during off -flood seasons to in- sure that all equipment is in order for instant use. At regular intervals, prop- er measures shall be taken to provide for cleaning plant, buildings, and equipment, repainting as necessary, and lubricating all machinery. Ade- quate supplies of lubricants for all types of machines, fuel for gasoline or diesel powered equipment, and flash lights or lanterns for emergency light- ing shall be kept on hand at all times. Telephone service shall be maintained at pumping plants. All equipment, in- cluding switch gear, transformers, mo- tors, pumps, valves, and gates shall be trial operated and checked at least once every 90 days. Megger tests -of all insulation shall be made whenever wir- ing has been subjected to undue damp- ness and otherwise at intervals not to exceed one year. A record shall be kept showing the results of such tests. Wir- ing disclosed to be in an unsatisfactory condition by such tests shall be brought to a satisfactory condition or shall be promptly replaced. Diesel and gasoline engines shall be started at such intervals and allowed to run for such length of time as may be nec- essary to insure their serviceability in times of emergency. Only skilled elec- tricians and mechanics shall be em- ployed on tests and repairs. Operating personnel for the plant shall be present during tests. Any equipment removed from the station for repair or replace- ment shall be returned or replaced as soon as practicable and shall be trial operated after reinstallation. Repairs requiring removal of equipment from the plant shall be made during off -flood seasons insofar as practicable. (2) Operation. Competent operators shall be on duty at pumping plants whenever it appears that necessity for pump operation is imminent. The oper- ator shall thoroughly inspect, trial op- erate, and place in readiness all plant equipment. The operator shall be fa- miliar with the equipment manufactur- ers' instructions and drawings and with the "Operating Instructions" for each station. The equipment shall be oper- ated in accordance with the above - mentioned "Operating Instructions" and care shall be exercised that proper lubrication is being supplied all equip- ment, and that no overheating, undue 33 CFR Ch. 11 (7-1-98 Edition) vibration or noise is occurring. Imme diately upon final recession of flood waters, the pumping station shall be thoroughly cleaned, pump house sumps flushed, and equipment thoroughly in- spected, oiled and greased. A record or log of pumping plant operation shall be kept for each station, a copy of which shall be furnished the District Engi- neer following each flood. (g) Channels and floodways—(1) Main- tenance. Periodic inspections of im- proved channels and floodways shall be made by the Superintendent to be cer- tain that: (i) The channel or floodway is clear of debris, weeds, and wild growth; (ii) The channel or floodway is not being restricted by the depositing of waste materials, building of unauthor- ized structures or other encroach- ments; (III) The capacity of the channel or floodway is not being reduced by the formation of shoals: (iv) Banks are not being damaged by rain or wave wash, and that no slough- ing of banks has occurred; (v) Riprap sections and deflection dikes and walls are in good condition: (vi) Approach and egress channels ad- jacent to the improved channel or floodway are sufficiently clear of ob- structions and debris to permit proper functioning of the project works. Such inspections shall be made prior to the beginning of the flood season and otherwise at intervals not to exceed 90 days. Immediate steps will be taken to remedy any adverse conditions dis- closed by such inspections. Measures will be taken by the Superintendent to promote the growth of grass on bank slopes and earth deflection dikes. The Superintendent shall provide for peri- odic repair and cleaning of debris ba- sins, check dams, and related struc- tures as may be necessary. (2) Operation. Both banks of the chan- nel shall be patrolled during periods of high water, and measures shall be taken to protect those reaches being attacked by the current or by wave wash. Appropriate measures shall be taken to prevent the formation of jams of ice or debris. Large objects which be- come lodged against the bank shall be removed. The improved channel or floodway shall be thoroughly inspected