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HomeMy WebLinkAboutSWP272194 / 0 G ' �0 CITY OF RENTON Construction Permit i Permit Number Permission is hereby given to do the following described work, according to the conditions hereon and according to the approved plans and specifications pertaining thereto, subject to compliance 1 with the Ordinances of the City of Renton. :...:; o: �TATEl SEWER <S O � r , T RM,PAVING <IMPROVEMENTS ... ..............................:...:.::..::: PER APPROVED PLANS. ATTACHMENT A INCORPORATED BY REFERENCE AS AMENDED BY THE MARCH 30, 1995 PRECON. ... I 7ob a <.; : .::...:. .. ... ,.... � OWE .....::.... ....... . ........ Own _. _ HN FIETROMONACO .........................:::::::::::::.:::::::::::::::::::::::;;:::....:;,;:;;;;:.::.;:.;:;.;; ..... 7900 SE 28TH #310 MERCER ISLAND, WA f 98040 :.. ................................................................:......,.......:...................................... Contractor's License Contractor's Phone DAVID P HOLMES City License 206-822-6700 Contact Contact's Phone Other Information Date Issued / Work Order ...... 87686 p� Parcel Number Date of Expiration 10/03/1995 918800-0030 Date Finaled Inspectors Name pINKHAM, STEVEg g g—18 3 2 Inspector's Phone It is understood that the City of Renton shall be held harmless of any and all liability, damage or injury arising from the performance of the work described above. You will be billed time and material for any work done by City staff to repair damages. Any work performed within the right-of-way must be done by a licensed, bonded contractor. Call 277-5570 one working day in advance for inspections. Locate utilities before excavating. Call before you dig - 48 Hour Locators 1-800-424-5555 I hereby certify that no work is to be done except Subject to compliance with the Ordinances of the as described above and in approved plans, and that City of Renton and information filed herewith this all work is to conform to Renton codes and permit is granted. ordinances. I � y X X G, App Pub ' Works Rep ' THIS PERMIT MUST BE POSTED AT THE JOB SITE AT ALL TIMES. BD3203e 08/94 lif . ATTACHMENT PERMIT NO. C950043 K & N MEATS AMENDED PER THE PRECONSTRUCTION MEETING March 30, 1995 3:00 p.m. Contractor: Sierra Construction Contact: Tom Sorenson OR Peter del Valle, Project Site Supervisor Phone: 1-206-885-3797 Inspector: Steve Pinkham Project Manager: Kayren Kittrick Phone: 999-1832 Phone: 277-4499 FRANCHISE UTILITIES: 1. The franchise utilities require copies of the approved construction drawings before designing their facilities. 2. Each franchise utility must apply for a separate permit prior to construction in existing or future right-of-way. A blueline drawing showing the location of all utilities, city and franchise, in redlines shall be submitted to the third floor counter for City review two weeks before installation. 3. All franchise utilities shall be separated a minimum of five feet (5') horizontally and twelve inches (12") vertically from City utilities. GENERAL: 1. CALL FOR INSPECTION (24 HR NOTICE) BEFORE YOU START WORK. NOTIFY FIRE, POLICE AND METRO OF CONSTRUCTION SCHEDULE. CALL 911 FROM A LOCAL LAND LINE ONLY. FIRE DISPATCH FROM CELL PHONE. 854-2005 NO WORK SHALL COMMENCE ON THE PROJECT UNTIL THE CONSTRUCTION PERMIT AND BUILDING PERMIT ARE ISSUED. 2. Contractors are advised to only use sets of drawings stamped and signed by the City of Renton for constructing utility and transportation improvements. The approved plans do not constitute a fill and grade permit or grant any rights to fill and/or grade outside of the right-of-way. Keep a set of approved drawings on-site at all times. 3. Work hours for hauling in right-of-way are weekdays, 8:30 AM to 3:30 PM, Saturday by approval only and no Sundays. Construction hours: 7:00 AM to 8:00 PM. Any changes to work hours shall have prior approval from the City of Renton. 4. Contractor must call for City inspection before 3:00 p.m. on the previous day. Overtime takes special authorization and scheduling in advance. Pay schedule is $50 per hour for overtime. All overtime shall be coordinated in advance through the inspector and may be done a month at a time if known. 5. Keep the streets clean. Truck washing and other measures as approved required for the duration of the project. Provide whatever measures necessary for cleanup and dust control during job and at night. 6. A_Trafric Control Plan shall be submitted for approval prior to permit issuance. Traffic control and signing to be in accordance with the Manual on Uniform Traffic Control Devices. Flaggers shall have hard hats, vests, signs and certification card. Haul legal loads and observe all traffic laws. All truck maneuvering and materials storage to be on-site only. Right of way to remain unobstructed when possible. No stockpiles on right of way. (Complied) 7. All utilities must be inspected prior to backfill. 8. The contractor, as well as the engineer, shall keep as-built drawings. All changes shall be shown on as-builts. As-builts shall be per City specifications. All bends on waterlines shall be surveyed prior to backfill with horizontal and vertical control for all bends established. Sewer lines may be surveyed after backfill at manhole access. As-built drawings must have a P.E. or L.P.S. stamp. Final occupancy will not be issued until receipt and approval by the City of project utility and transportation improvement as-built drawings. 9. For any field changes: If minor, submit a shop drawing or schematic through the inspector or by FAX- 235-2541. If major, the project engineer should submit drawings and complete justification, information and calculations as applicable to the Plan Review project coordinator. The City will answer by memo or schedule a meeting within two days. The field inspector can not give approval in the field for construction changes. FIRE PREVENTION: 1. Maintain access to site at all times. Must be able to support emergency equipment in all types of weather. Hydrants must be in place prior to any combustable installation above the foundations. Two existing hydrants were identified near the site. Access to the nearest neighboring building must be kept clear. 2. All new hydrants shall be Cory type hydrants to be painted Safety Yellow. Iowa and Renselear are manufacturers of Cory type. An alternate fire hydrant, Clow Medallion or Mueller Super Centurion have been approved for use. Any hydrant installed shall be equipped with "quick connect"style fittings. 3. New hydrants are to be covered with burlap bags until operational. 4. All blocking must be inspected by a City inspector prior to backfill. 5. Leads that exceed 50 feet in length shall be 8". 6. Call 911 from a local phone if the watermain needs to be shut off (emergency only). All other water mains or valves shut down, call Renton Water Department at 235-2646. 7. Fuel: any temporary on-site fuel supplies shall have a separate permit from Fire Prevention. 8. All underground mains serving fire sprinkler systems must be installed by a Washington State certified fire sprinkler contractor. 9. Notify central dispatch 24 hours prior to work in the existing right-of-way. (Local Land Line : 911) or Fire Dispatch (cell phone - 854-2005) 10. Any Hazardous Materials Permit or Hot Works Certification may be applied for through Fire Prevention, second floor of Renton City Hall. CITY UTILITIES WATER: 1. Pipe materials, valves and fittings shall be as indicated in the approved plans and standard notes. In the case of construction in proposed new roadways, all construction of the road prism shall be accomplished and in place prior to utility installation to avoid damage or disturbance of the infrastucture. 2. All connections to existing mains shall be accomplished by the City of Renton. The contractor constructs the new water main to a point about ten feet short of the existing main. All necessary excavation, shoring, and materials are supplied by the contractor and shall be on-site prior to scheduling. Allowing at least two working days advance notice, schedule the connection through the construction inspector. 3. Procedure for cleaning and construction testing of new water lines: a. Temporary and permanent thrust blocks shall be formed. Concrete for thrust blocks shall be delivered to the job. No on-site mixes are allowed. All blocking must be inspected before backfilling. b. Pipe cleaning shall be by poly pigging through vertical crosses installed at the ends of the water lines to serve as pig launches and sediment traps. c. All water lines shall be pressure tested to minimum of 200 psi or 150 over operating pressure (static) for 2 hours. Services may be tested separately by visual inspection of the Corp stop under static pressure. d. Chlorinate for 24 hours, using liquid chlorine and chlorine pump assembly. The inspector shall schedule chlorinating. Five working days advance notice is required. e. Water used for flushing water lines shall be drained into sanitary sewer only. f. Purity tests are collected by the construction inspector at blow-offs and hydrants. Water purity tests are taken to the laboratory on Wednesdays. Contractor shall arrange courier service for any other day. Test results are available in 5-7 days. 4. Crushed rock backfill to grade is required in City right-of-way. Recycled concrete may be used in lieu of crushed rock backfill. Pit run type material may be considered for use in backfill by the construction inspector. Compaction testing may be required. 5. Where conflict exists, the water main shall go under other utilities, however, it is preferred that no water mains shall have more than 6 feet of cover. All water mains shall have a minimum of three feet of cover. 6. Final acceptance shall be after final walk through inspection, adjustment of all structures, and approval of as-builts and cost data inventory. SANITARY SEWER: 1. All pipes and materials shall be per approved plan and standard notes. However, any sewer pipe with less than four feet or greater than fifteen feet of cover shall be Ductile Iron, Class 50. 2. Pipe bedding for PVC pipe shall be pea gravel 6" above and below the pipe. 3. Select backfill shall be compacted to at least 95% of maximum density. 4. Contractor will be responsible for TV of the sanitary line. TV after channeling is complete. Air tests on main and sidesewers shall be per City specification. Number 6 wire shall be wrapped around the stub and extended to the top. 5. Contractor shall asbuilt the invert elevation of side sewer stub. 6. The side sewer service shall be fitted with a backflow prevention device approved by the Wastewater Utility Supervisor. (Dave Christensen, 277-6212) An example of a previously approved back flap style installation will be provided by Kayren Kittrick from City of Renton files. STORM: 1. Approved temporary erosion control measures are to be maintained at all times. 2. All pipes and materials shall be per approved plan. All roadway excavation and backfill for construction of the road prism shall be accomplished prior to installation of the drainage facilities to avoid damage or disturbance of the new infrastructure.. 3. Contractor must notify engineer of any vertical conflict prior to proceeding with construction. Submit a shop drawing for review. 4. Bedding material shall be per Standard Specifications 9-03.12(3). 5. Backfill shall be compacted to at least 95% of maximum density. 6. Catch Basins shall be grouted smoothly. 7. System shall be flushed and cleaned. City may request that the line be lamped. 8. Smooth interior wall corrugated polyethylene storm water pipe, where permitted, shall use heat shrunk or watertight couplings. It shall also be bedded in pea gravel to the springline. 9. An Elevation Certificate shall be completed and returned to the City of Renton Surface Water Utility, attention Mike Dotson (277-6192). The certificate and documents were provided by Mike Dotson and given to Tom Sorenson for completion. TRANSPORTATION: 1. Uniform traffic manual shall be followed for street closures and routing for traffic. The approved traffic control plan shall be in place as required. 2. Paving -- The minimum compaction shall be 95% of maximum relative density on subgrade and rock surfaces. 3. Contractor shall not leave open trenches overnight. Backfill, plate or fence all trenches. The proposed method of cover or protection shall be submitted for approval to the inspector. Shoring plates and cold mix to be on site at all times. Cold mix for sidewalks and driveways may be required by the inspector for safety. 4. Keep field records for asbuilts. 5. Truck hauling to be in non-peak hours only. (8:30 to 3:30) 6. Watch for pedestrian traffic. Provide "sidewalk closed" signing as needed. MEETING ATTENDANCE RECORD PROJECT: K & N Meats DATE: March 30, 1995 LOCATION: Third Floor Conference Room COORDINATOR: Kayren Kittrick NAME/COMPANY ADDRESS/CITY/ZIP PHONE r 4z O o x 2,9s ZD O � Z Jaw& G�'caN IQwe� Gratisf- ���••• �e• .>;yQ �f61� j oq 3-5 -.2 n S- 3 7 IR I -JtL ►jq` ��- ASS - �'� 9 o M t4F -944, 88S •3-19-1 'F-WMu40 WA `5d Sz pp l(.0 n�$Lhd W .xlQ 2- �.5 -z6,/Z vv 1 •fQ1t �„1,( J1.d112c..{;.)�, ZCTaYu.�Ll�Yu{ S i1. tCl�r�C.l.� PLEASE NOTE:if you wish to receive the minutes of this meeting,your full address must be listed. AUTHORIZATION OF SPECIAL BILLING DATE: March 30, 1995 PROJECT NAME: K & N Meats PROJECT NUMBER: C950043 4} WORK ORDER No.: 87686N It is the intent of this letter to authorize the City of Renton to bill the undersigned for all costs incurred relative to the referenced project, by the City of Renton for the following work: TIME AND MATERIALS FURNISHED BY CITY OF RENTON WATER DEPARTMENT TO PERFORM CONNECTIONS TO EXISTING WATER MAINS, WATER PURITY SAMPLES,AND RELATED WORK. .. TIME AND MATERIALS FOR ANY AND ALL ROAD CLEANUP EFFORTS PERFORMED BY CITY FORCES OR CITY CONTRACT. ALL OVERTIME FOR INSPECTION AND RELATED ACTIVITIES, BILLABLE AT A RATE OF FIFTY DOLLARS ($50.00) AN HOUR TIME AND MATERIAL FOR ANY WORK DONE BY CITY STAFF TO REPAIR DAMAGES. BILLING TO BE SENT TO: Name: Tom Sorenson Company: Sierra Construction Address: 16715 NE 79th Street Redmond WA 98052 Phone: 1-206-8 8 5-3 797 Fax: 1-206-885-4330 wner/Developer or Authorized Agent CITY OF RENTON TRANSPORTATION SYSTEMS-TRAFFIC OPERATIONS TRAFFIC CONTROL PLAN CONSTRUCTION COMPANY: APPL. DATE: 3•Z9 '9S ADDRESS: 11..11e,- ME -79-fk PHONE : (2d} 885.ym-) _ YZ�nrticvvn �1d. 9�r�5Z MOB./Cm- g: (V.0)981 •3910 CONSTRUCTION SUPERINTENDENT: FAX #: (zcX} 885.4330 CONSTRUCTION LOCATION: L WORK TIME: T00 ,t-, - 3*30 APPROVED BY: WORK DATE: 'S1I2I-15 APPROVAL DATE: `7 NOTES: 1) CALL 911, FIRE & POLICE DEPARTMENTS BEFORE ANY CLOSURE. USE LOCAL PHONE. 2) THIS PLAN MUST BE SUBMITTED AT LEAST THREE (3) WORKING DAYS PRIOR TO WORK. COMMENTS: I I SKETCH NORTH �VV er i OfF10E COPY T— I have been ;reformed f my resoonsibil;t;es for traffic control and CONTRACTOR agree to comp) with traffic regulations of the City of Renton. INSPECTOR rrEIL WATTS SIGNATURE DATE: 3'3y 95 POUCE I JOE PEACH SIRE Jim GRAY E\•cu1\�)PCv.n.\C uutN C C���-C r STORM DRAINAGE REPORT crry or RENT? E C E I V E ® FEB 2 8 1c 15 �IDILi�IiJU DIVISIUN FOR K&N MEATS RENTON, WASHINGTON BY BUSH, ROED & HITCHINGS 2009 MINOR AVENUE EAST SEATTLE, WA 98102 (206) 323-4144 CONTACT: JOHN E. ANDERSON, P.E. �.NN�j� 268l8 STEV-hG;� NAL EXPIRES 12/1/Q$ 1• RRV. FOR WATeR Qva��i`f Sv.iA�.E 2-72-�5 TABLE OF CONTENTS Page No. I. Project Overview H. Preliminary Conditions Summary III. Off-Site Analysis IV. Retention/Detention Analysis and Design V. Conveyance Systems Analysis and Design VI. Special Reports and Studies VII. Basin and Community Planning Areas VIII. Other Permits DC Erosion/Sedimentation Control Design X. Bond Quantities Work Sheet, Retention/Detention Facility, Summary Sheet and Sketch, and Declaration of Covenant XI. Maintenance and Operations Manual XII. Appendix I. PROJECT OVERVIEW K&N Meats is a 6 . 5 acre site located along Powell Avenue, just north of Southwest 7th Street. The project is located on lots 3 and 4 of Washington Tech Center, in Renton Washington. The current property owner, Lowe Enterprises, has an approved building permit for construction of an office/warehouse building. The site development proposed for this project is smaller than the approved development plan. • Page 1 of 2 King County Building and Land Development Division TECHNICAL INFORMATION REPORT (TIR) WORKSHEET PROJECTPART 1 OWNER AND PART 2 PROJECT • • PROJECTAND DESCRIPTION Project Owner �� '� '✓fit A�'�1 Project Name � `TJ Address Location PhoneTownship Range Project Engineer , 04Q r�Nt -�O"v Section Company — Project Size t� AC AC Address Phone '32� Upstream Drainage Basin Size S AC PART 3 TYPE OF • OTHER Q Subdivision Q DOF/G HPA Q Shoreline Management Q Short Subdivision Q COE 404 Q Rockery Grading Q DOE Dam Safety 0 Structural Vaults Commercial Q FEMA Floodplain Q Other Q Other Q COE Wetlands Q HPA COMMUNITYPART 5 SITE AND DRAINAGE Community Q��•1"�b� Drainage Basin PART 6 SITE CHARACTERISTICS Q River Floodplain Q Stream Q Wetlands 0 Critical Stream Reach Q Seeps/Springs 0 Depressions/Swales Q High Groundwater Table Q Lake Q Groundwater Recharge Steep Slopes Q Other Lakeside/Erosion Hazard • a/� 1 7opes Erosion Potential Erosive Velocities o S BPS Q Additional Sheets Attatched 1/90 Pp.2of2 King County Building and Land Development Division TECHNICAL INFORMATION REPORT (TIR) WORKSHEET PART 8 DEVELOPMENT LIMITATIONS REFERENCE LIMITATION/SITE CONSTRAINT Ch.4-Downstream Analysis a 0 0 Additional Sheets Attatched REQUIREMENTSPART 9 ESC MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION FOLLOWING CONSTRUCTION Sedimentation Facilities ( Stabilize Exposed Surface ® Stabilized Construction Entrance © Remove and Restore Temporary ESC Facilities Perimeter Runoff Control © Clean and Remove All Silt and Debris ® Clearing and Grading Restrictions [0 Ensure Operation of Permanent Facilities Cover Practices L?J Flag Limits of NGPES l� Construction Sequence Other O Other ' PART 10 SURFACE WATER SYSTEM IX Grass Lined Channel Tank 0 Infiltration Method of Analysis Pipe System Vault 0 Depression .C. 1°,-t D Open Channel Energy Dissapator 0 Flow Dispersal Compensation/Mitigation Dry Pond 0 Wetland 0 Waiver . of Eliminated Site Storage Wet Pond Stream Regional Detention Brief Description of System Operation '-Og�' W I u, 1E)e,&i rJ 7,,�,i 9JE7�L-`< Tb 6 tk r 5?,u_A., 'tJ, 77177�. Facility Related Site Limitations Q Additional Sheets Attatched Reference Facility Limitation (May require special structural review) 0 Drainage Easement 0 Cast in Place Vault Other 0 Access Easement Retaining Wall Native Growth Protection Easement Rockery>4'High Tract Structural on Steep Slope Other !�,ART 14 SIGNATURE OF PROFESSIONAL ENGINEER _1 I or a civil engineer under my supervision have visited the site.Actual site conditions as observed were incorporated into this worksheet and the attatchments. To the best of my knowiedge the information provided here is accurate. 1/90 s s 1�0 REN ON. 12 1 Tz S 112 ST 21 D PL s s _T 'L Olt T)p > om 4 ST 1 ST IT R6 14,11 Kirys 4",.r) S, rf B CA'tk fix EARLI T C :ST 2A MY c Race 'j ?K. Track Cl n r— r, i-r VICINITY MAP BUSH, ROED & HITCHINGS, INC. i H. Preliminary Conditions Summary K&N Meats is proposing the construction of a meat processing facility on Lots 3 and 4 of the Washington Technical Center plat located within the City of Renton, Washington. The 6.5 acre site is located along the east side of Powell Avenue Southwest north of Southwest 7th Street. Bush, Roed & Hitchings, Inc. completed construction plans for a larger building proposed by Lowe Enterprises for this site in 1992. The development proposed by K&N Meats has a much smaller building and site plan than originally approved for the Lowe project. The existing site is vegetated with grasses, bushes and trees. It appears the site has been filled along the southern half. Storm water run-off sheet flows northward to the existing drainage ditch. The site is located within an area which drains to a regional detention facility and therefore on-site storm water detention is not required. Storm water run-off from the areas subject to vehicular travel will be treated using biofiltration and water quality swales. The biofiltration swales will treat the developed flow from the parking surfaces. Biofiltation swales will discharge into a high flow bypass structure. From the bypass structure, storm water will either be routed to the water quality swale or conveyed to the discharge point along Powell Avenue. Water quality swales are appropriate for this site because standing water in a wetpond/wetvault system would attract rodents. Federal and state laws require a sanitary zone iaround food processing facilities. Water quality swales will accomplish the required treatment without creating a long term rodent problems for K&N Meats. Storm water run-off from the roof areas will bypass the biofiltration and water quality swales. According to city standards, treatment of the roof areas is not required. Three biofiltration swales and two water quality swales are being proposed around the site for the parking areas. Breaking the parking area into smaller tributary areas results in a smaller swale section because of the lower run-off rates. Test results have shown that longer swales produce better water quality. This layout should produce a higher water quality than a single 200 foot long swale system. The following values were used for design: CN: 86 new landscape areas CN: 98 new impervious surface areas P(Pt-wq): 0.67" P2: 2.0" P10: 2.9" P100: 3.9" KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL. 'WfABLE 3.5.2C "n" AND "k" VALUES USED IN TIIME CALCULATIONS FOR HYDROGRAPHS , 1 , 'n;Sheet Flow Equation Maning's Values(For the Initial 300 It of travel) n.' Smooth surfaces(concrete.asphalt,gravel,or bsra hard packed sit) -0.011 Fallow fields or too""A surface(no residue) OAS CuRMated sod with residue cover(s<-0.20 It/ft) 0.06 Cultivated sod with residue c0var(S>020 1`11/14 0.17 Short paw Grass and laws - 0.15 0.24 Dense grasses 0.41 Bermuda grass Range(natural) 0.13 Woods or forest with R¢x underbrush Q40 ' Woods or forest with dares underbrush 0.130 -Manning values for sheet Dow orty.from Overton and Meadows 1976(S-TRW.19%) Y Values Used in Travel Time/Tine of Concertratlon CWCUlations Shallow Concentrated Flow (Attar the initial 300 R.of sheet Dow.R -0.1) k, 1. Forest with heavy ground litter and meadows(n-0.10) 3 z Brushy ground with some uses(n-0.060) s 3. Fallow or minknum tillage aipvation(n-0.040) t1 4. K h foss(n-0.035) 9 S Short grass.pasture and lawns(n-0.030) 11 - 8. Nearly bare ground(n-O.M) 13 7. Paved and gravel areas(n-0.012) 27 . Channel Flow Qnerminert)(As the begkvniq of visible chamois:R-02) k. 1. Forested swale with heavy ground liner in -0.10) 5 2. Forested drainage course/ravine with defined channel bed(n-0.050) 10 3. Flock-lined waterway(n•0.0.75) 1s 4. Grassed waterway(n-0.030) 17 5. Farthaiied waterway(n-0.025) 20 6. CLIP pips(n-0.024) 21 7. Concrete pipe(0.012) 42 6. Other waterways and pipes 0 SW/n Channel Flow(Coninuous stream.R -0.4) k• 9. Meandering stream with some pods(n-0.040) 20 23 10. RockAned stream(n-0.035) 1t. Grass-lined stream(n-0.030) 27 12. Other streams.man-made channels and pipe 0.807/n'- -Sue Caper S.Table 5.3.6C for additional m&nnk gs"r values for open channels 3.5.2-7 I/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL TABLE 3.52B SCS WESTERN WASHINGTON RUNOFF CURVE NUMBERS SCS WESTERN WASHINGTON RUNOFF CURVE NUMBERS (Published by SCS in 1982) Runoff curve numbers for selected agricultural, suburban and urban land use for Type 1A rainfall distrfbution, 24-hour storm duration. CURVE NUMBERS BY HYDROLOGIC SOIL GROUP LAND USE DESCRIPTION A B C D Cultivated land(1): winter condition 86 91 94 95 Mountain open areas: low growing brush and grasslands 74 82 89 92 Meadow or pasture: 65 78 85 89 Wood or forest land: undisturbed 42 64 76 81 Wood or forest land: young second growth or brush 55 72 81 86 Orchard: with cover crop 81 88 92 94 Open spaces, lawns, parks, golf courses, cemeteries, landscaping. good condition: grass cover on 75% or more of the area 68 80 86 90 fair condition: grass cover on 50% to 75% of the area 77 85 90 92 Gravel roads and parking lots 76 85 89 91 Dirt roads and parking lots 72 82 87 89 Impervious surfaces, pavement, roofs, etc. 98 98 98 98 Open water bodies: lakes,wetlands, ponds, etc. 100 100 100 100 Single Family Residential (2) Dwelling Unit/Gross Acre % Impervious (3) 1.0 DU/GA 15 Separate curve number 1.5 DU/GA 20 shall be selected 2.0 DU/GA 25 for pervious and 2.5 DU/GA 30 Impervious portion 3.0 DU/GA 34 of the site or basin 3.5 DU/GA 38 4.0 DU/GA 42 4.5 DU/GA 46 5.0 DU/GA 48 . 5.5 DU/GA 50 6.0 DU/GA 52 6.5 DU/GA 54 7.0 DU/GA 56 Planned unit developments, % impervious condominiums, apartments, must be computed commercial business and industrial areas. (1) For a more detailed description of agricultural land use curve numbers refer to National Engineering Handbook, Section 4, Hydrology, Chapter 9,August 1972. (2) Assumes roof and driveway runoff Is directed Into street/storm system. (3) The remaining pervious areas Qawn) are considered to be in good condition for these curve numbers. 4 i 3.5.2-3 1190 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL FIGURE 3S.2A HYDROLOGIC SOIL GROUP OF THE SOILS INKING COUNTY HYDROLOGIC HYDROLOGIC SOIL GROUP GROUP' SOIL GROUP GROUP' Alderwood C Orcas Peat D Arents,Alderwood Material C Oridia D Arents,.Everett Material B Ovall C Beausite C Pdchuck C Bellingham D Puget D Briscot D Puyallup B Buckley D Ragnar B Coastal Beaches Variable Renton D Earimont Set Loam D Riverwash Variable Edgewick C Salal C Everett A Samrnamish D Indianola A Seattle D KItsap C Shacar D Kaus C Sl Set C Mixed Alluvial Land Variable - Snohomish D Newton A Sultan C Newberg B Tukwila D Nooksack C Urban ter------ Variable Normal Sandy Loam D Woodinville D HYDROLOGIC SOIL GROUP CLASSIFICATIONS A (Low runoff potential). Soils having"high Infiltration rates, even when thoroughly wetted,and consisting chiefly of deep,well-to-excessively drained sands or gravels. These soils have a high rate of water transmission. B. (Moderately low runoff potential). Sods having moderate infiltration rates when thoroughly wetted, and consisting chiefly of moderately fine to moderately coarse textures. These soils have a moderate rate of water transmission. C. (Moderately high runoff potential). Soils having slow infiltration rates when thoroughly wetted,and consisting chiefly of soils with a layer that Impedes downward movement of water, or soils with moderately fine to fine textures. These soils have a slow rate of water transmission. D. (High runoff potential). Soils having very slow infiltration rates when thoroughly wetted and consisting chiefly of day soils with a high swelling potential, sods with a permanent high water table, soils with a hardpan or day layer at or near the surface, and shallow sods over nearly impervious material. These sods have a very slow rate of water transmission. ' From SCS,TR-55,Second Edition, June 19M. Exhibit A-1. Revisions made from SCS, Sol! Interpretation Record, Form #5, September 1988. 3.5.2-2 1/90 ■YAM/ nlb ,M•- 1:• •, ,AA awn Olt INA � • = wig/�i��'��1�1�''� i • • All IN low i' 11 ' AP Wram ON MA =ate. PORM� f ILI � •,S���y 1 �r���1�.!*��1�� /�`�III 1+ ����, IS WAVE ,I 'gyp.. �` tr ��• !.I,A+� �RIMac+�+�:-� > , W1 „ -- , M, -•� ,T ���— . 1,� m i !� mg ail/��•goo LA kv.—W—E.7 . l+ ��� N.-• �• .,.��i� � '��`� �� it IWi� : . � III. OFF-SITE ANALYSIS • A) OFF-SITE DRAINAGE TO THE SITE The only off-site drainage to the site will be from the western half of the rail road right-of-way. Total tributary area is approximately 0.11 acres. Storm water run-off from this area will sheet flow northward on undisturbed ground to the existing ditch at the north property line. This drainage pattern will not be changed by the proposed development. B) OFF-SITE DOWNSTREAM ANALYSIS Storm water run-off from the site parking areas will be tight lined to a 36 inch culvert crossing beneath Powell Avenue. The roof areas will be conveyed directly to the existing ditch along the north property line which flow to the 36 inch diameter culvert beneath Powell Avenue. The 36 inch culvert discharges into a man made ditch that flows west. The ditch is typically 10 foot wider at the bottom with 2 :1 (H:V) side slopes and a channel slope of approximately 0.3 percent. The ditch flows into a 73 inch by 55 inch arch culvert at Naches Avenue. From the culvert the flow continues in a southwesterly direction with final discharge into the P-1 channel. • IV. RETENTION/DETENTION ANALYSIS AND DESIGN The subject site is within a commercial plat which does not require storm water detention. Since the impervious surface area subject to vehicular traffic is greater than one acre, a wetvault will be required. The wetvault has been sized according to the 1990 King County Design Manual standards and includes the future parking lot expansion. i 2 2/21/95 Bush, Roed & Hitchings, Inc. page 1 K&N Meats . John E. Anderson, P.E. storm disk-93278 BASIN SUMMARY BASIN ID: Al NAME: PT-WQ BASIN A SBUH METHODOLOGY TOTAL AREA. . . . . . . : 0.60 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 0.67 inches AREA. . : 0.00 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0. 20 AREA. . : 0.60 Acres CN. . . . . 98.00 PEAK RATE: 0.08 cfs VOL: 0.02 Ac-ft TIME: 480 min BASIN ID: A2 NAME: 2 YEAR DEVELOPED FROM BASIN A SBUH METHODOLOGY TOTAL AREA. . . . . . . : 0.60 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 2.00 inches AREA. . : 0.00 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0. 20 AREA. . : 0.60 Acres CN. . . . . 98 .00 PEAK RATE: 0. 28 cfs VOL: 0.09 Ac-ft TIME: 480 min BASIN ID: A3 NAME: 10 YEAR DEVELOPED FROM BASIN A SBUH METHODOLOGY TOTAL AREA. . . . . . . : 0.60 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 2.90 inches AREA. . : 0.00 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0. 20 AREA. . : 0.60 Acres CN. . . . . 98.00 PEAK RATE: 0.41 cfs VOL: 0.13 Ac-ft TIME: 480 min 2 2/21/95 Bush, Roed & Hitchings, Inc. page 2 K&N Meats John E. Anderson, P.E. storm disk-93278 BASIN SUMMARY BASIN ID: A4 NAME: 100 YEAR DEV. FROM BASIN A SBUH METHODOLOGY TOTAL AREA. . . . . . . : 0.60 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 3 .90 inches AREA. . : 0.00 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0.20 AREA. . : 0.60 Acres CN. . . . . 98.00 PEAK RATE: 0.56 cfs VOL: 0. 18 Ac-ft TIME: 480 min BASIN ID: B1 NAME: PT-WQ FROM BASIN B SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1.63 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 0.67 inches AREA. . : 0.28 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0. 20 AREA. . : 1. 35 Acres CN. . . . . 98.00 PEAK RATE: 0. 17 cfs VOL: 0.05 Ac-ft TIME: 480 min BASIN ID: B2 NAME: 2 YEAR DEVELOPED FROM BASIN B SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1.63 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 2.00 inches AREA. . : 0.28 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0. 20 AREA. . : 1.35 Acres CN. . . . . 98.00 PEAK RATE: 0.68 cfs VOL: 0.22 Ac-ft TIME: 480 min t 2/21/95 Bush, Roed & Hitchings, Inc. page 3 • K&N Meats John E. Anderson, P.E. storm disk-93278 BASIN SUMMARY BASIN ID: B3 NAME: 10 YEAR DEVELOPED FROM BASIN B SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1.63 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 2.90 inches AREA. . : 0.28 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0 . 20 AREA. . : 1. 35 Acres CN. . . . . 98.00 PEAK RATE: 1.04 cfs VOL: 0. 34 Ac-ft TIME: 480 min BASIN ID: B4 NAME: 100 YEAR DEV. FROM BASIN B SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1.63 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 3 .90 inches AREA. . : 0.28 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 7.80 min IMPERVIOUS AREA ABSTRACTION COEFF: 0. 20 AREA. . : 1. 35 Acres CN. . . . . 98.00 PEAK RATE: 1.44 cfs VOL: 0.47 Ac-ft TIME: 480 min BASIN ID: Cl NAME: PT-WQ FROM BASIN C SCS METHODOLOGY TOTAL AREA. . . . . . . : 1.54 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 0.67 inches AREA. . : 0.58 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 9.10 min IMPERVIOUS AREA ABSTRACTION COEFF: 0.20 AREA. . : 0.96 Acres CN. . . . . 98.00 PEAK RATE: 0.08 cfs VOL: 0.03 Ac-ft TIME: 460 min t 2/21/95 Bush, Roed & Hitchings, Inc. page 4 K&N Meats John E. Anderson, P.E. storm disk-93278 BASIN SUMMARY BASIN ID: C2 NAME: 2 YEAR DEVELOPED FROM BASIN C SCS METHODOLOGY TOTAL AREA. . . . . . . : 1.54 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 2.00 inches AREA. . : 0.58 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 9.10 min IMPERVIOUS AREA ABSTRACTION COEFF: 0.20 AREA. . : 0.96 Acres CN. . . . . 98.00 PEAK RATE: 0. 65 cfs VOL: 0 .17 Ac-ft TIME: 460 min BASIN ID: C3 NAME: 10 YEAR DEVELOPED FROM BASIN C SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1.54 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 2.90 inches AREA. . : 0.58 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 9.10 min IMPERVIOUS AREA ABSTRACTION COEFF: 0.20 AREA. . : 0.96 Acres CN. . . . . 98.00 PEAK RATE: 0.88 cfs VOL: 0.29 Ac-ft TIME: 480 min BASIN ID: C4 NAME: 100 YEAR DEV. FROM BASIN C SCS METHODOLOGY TOTAL AREA. . . . . . . : 1.54 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE. . . . : USER1 PERVIOUS AREA PRECIPITATION. . . . : 3 .90 inches AREA. . : 0.58 Acres TIME INTERVAL. . . . : 10.00 min CN. . . . : 86.00 TIME OF CONC. . . . . : 9.10 min IMPERVIOUS AREA ABSTRACTION COEFF: 0. 20 AREA. . : 0.96 Acres CN. . . . . 98.00 PEAK RATE: 1.56 cfs VOL: 0.41 Ac-ft TIME: 460 min BUSH, ROED & HITCHINGS,INC. SOB CIVIL ENGINEERS & LAND SURVEYORS SHEET NO. OF 2009 Minor Avenue East `CALCULATED BY DATE 2/ S Seattle,WA 98102 v L� • (206)323-4144 CHECKED BY DATE B R H (206)323-7135 ' Fax SCALE �'a '6' Q Z = O ,28c�S Q to= O `3 1 GF5_� tou= O rS6DC.FS t 0p{— v =O Q - n = O.oB (�2ASS �o'ccoM� . 0o2. 42 3 d cFE� 3 �RStIJ �c ?�'..oFt�T2PTlc►,1 �AL>: 6 � (nO fJ r"O � �`�'� O .50 0 ,41 O 3 3 ASS Urn T---0 p u-- 2 ,5 ©,5 � , oz 0 - 51 - - ©-. 4 0 G-7 0 45 SAS',� � �i ot=��T2AT t o N ��,-�►c.� PROOUCT204-1(Single Sneels)205 1(Padded)®®Inc..Groton.Mass.01471.To Order PHONE TOLL FREE 1-BOo-225-6380 BUSH,ROED&HITCHINGS,INC. JOB � AT� CIVIL ENGINEERS & LAND SURVEYORS SHEET NO. OF �. 2009 Minor Avenue East CALCULATED BY DATE 2� Z �5 Seattle,WA 98102 (206)323-4144 CHECKED BY DATE B R H (206)323-7135 -Fax SCALE �AS f "'20_% Z. �'f°rJ Q lo....._' �,... ?BCFt= Fog 15__ NepeaL4 C4 vP.L. To Q 7. : Sig _ ?•}-i'E F3 10 (LL7/Z A 10n/ . 6�<AL A►J R Sz U 1 eE17 Fly K4 &7#q"40ARC)5 t. "WE Lei LG t�SE T fE NorE; k,L4, 0E6f7ll_ ALLIO. A F 4. b�T aF 67 Fr l811) Fog A -2 r�-AR �5Tarz, IF' r146 5v,-1ALE 6LOPE 15 _ DUAL 70 OR te-$e ? -J �l 0,5• T>rf� �Gokt D& T'' �R Qz P� sW,41-5--5 14bR APPR oxIm ATc L' o, DAs1 Ni A-F b wp7"0z QUA-uTic swag -- d Y-n AX 0 003 �455vn�� v1 G P�L.0 _ �IGA4c p . ZO p 0a3Z 0- f 7 4 � 2? n• 2` U, �oN'fYlol.. 9 t 5C 14-Po2 LI S INTO WAT02 5 �z OYLJFIC PRODUCT 204-1(Single Sleets)205-1(Padded)®®Inc..Grown.Mass.01471.To Order PHONE TOLL FREE 1.800.225,M I BUSH, ROED&HTTCHINGS,INC. JOB � f CIVIL ENGINEERS& LAND SURVEYORS SHEET NO. OF 10-f 2009 Minor Avenue East ��lt .� Seattle,WA 98102 CALCULATED BY DATE_T A � (206)323-4144 CHECKED BY DATE B R H (206)323-7135 •Fax SCALE N TN�� n' � i Is-IF lAx.I eti14-r __ 9RO///> 7PX�`�'�9 TWe U 4!2 x-,p_ 1'3077aA4 SW�LC Gc/!LL t':59 77-101_ _47Y_ Q :_1--AcVaz Or 2oo111Q 7710 W/�-L I'Wd vi 9 N ;56Q CAC jarTll tp , la a . z5 dry 0 , 09 a ,zq rA tic.lE G!AA) ���0C A1AJ ... ............................................. ol ............................. ... PHOOOCT 204-1(Single Sheets)205-1(Pa00e01®0 Inc..Groron,Mass,01471.To Order PHONE TOLL FREE 1-800-225-6380 BUSH, ROED&HITCHINGS,INC. JOB k, CIVIL ENGINEERS& LAND SURVEYORS SHEET NO. OF 2009 Minor Avenue East Seattle,WA 98102 CALCULATED BY- DATE • (206)323-4144 CHECKED BY DATE B R H (206)323-7135 *Fax SCALE ........................................ .. 'pLAZ'r- - To �j'tR1�C.TtXI.� - �--- - - Fs f3io>7 T Tro�J lol:l�rrzx�t!bN i5puALg SwaLF f3As�nJ A - __ 1�3P�1�.J B'- 1706LO>M12 dn/7'0 WAT V JATs12 , uP'ku7ti! rJvcln�t 0UA1 j 5 wkr. r v �#1 >� .Flow P✓Y � _ _ _ PRODUCT 204-1(Single Sheets)205.1(Padded)®®Imo..Groton,Mass.01471,To Order PHONE TOLL FREE 14MR25-6W V. PIPE SIZING CALCULATIONS The out let pipe from the wetvault has the largest tributary area of approximately 2.4 acres. From hydrograph B2 the 100 year developed peak flow rate is 2.04 cfs. All storm pipes for the project will have a slope of 0.5 percent. Check a 12 inch smooth bore pipe using the Manning Equation: Q FULL = 2 . 7 CFS V FULL = 3 . 4 FPS V @ 2 .04 CFS = 3 . 7 FPS Since the last run of 12 inch pipe has capacity of convey the developed 100 year peak flow, it is obvious that all of the upstream 12 inch pipes will have adequate capacity. r VI. SPECIAL REPORTS AND STUDIES s VII. BASIN AND COMMUNITY PLANNING AREAS • VIII. OTHER PERMITS • r IX. EROSION/SEDIMENTATION CONTROL DESIGN TESC INTRODUCTION The T. E. S.C. Plan for Washington Tech Center has been developed following the guidelines established within the 1990 King County Storm Drainage Manual. In general, the site will be drained in a north/south direction from a ridge across the building pad. There will be approximately 4 . 1 acres draining north and 2 . 4 acres draining south of the ridge. Storm water runoff will sheet flow to interceptor swales which then conveyed the storm water to a sedimentation pond. The sedimentation pond has been sized so that it can later be modified to the wetpond. This results in a sediment pond storage capacity which far exceeds the volume required by the 1990 King County manual . As a result of the increased pond volume, a significantly smaller volume of sediment will be discharged to the downstream channel. In the calculations it has been shown that the minimum intercep- tor Swale section has adequate capacity to convey the 10 year storm water runoff rate from the 4 . 1 acres area. Therefore the minimum swale section will have adequate capacity for all areas on-site. Also, since the flow velocity within the swale will be approximately 0. 9 fps it will not be necessary to install rock check dams for channel protection. Rock check dams will be installed at various locations to improve sediment removal. Filter fabric fence will be installed along the north, west and south sides of the project. There is a small off-site drainage area along the east property line which will be conveyed by swale around the work area. 91206/Eng 40-B BUSH,ROED&HITCHINGS,INC. JOB CIVIL ENGINEERS &LAND SURVEYORS 2009 Minor Avenue East SHEET NO. OF Seattle,WA 98102 CALCULATED BY DATE 3• D�j �z t0_11 R uu (206)323-4144 B (206)323-7135 *Fax CHECKED BY DATE • . .I-7 SCALE '5e0l AA Et-JTACT(0c -J_. �oti�...... PER SeVfAa, .) 5.-.4.4-2 l-c............ .`I.90 ►� � .......... 2..ZZ IC = o. 15 FP-a A T 3 5.4.4 A 3 Go&P-467 S aa-1�,/ �S�ooEs X- 13 -,4e _ .4 tsal �S�D ' m,3o T/.ram ' �.SRc =_ '1•D ra.� 77 ate, \4 C) t •O Mw5 LivE tin — g,b 05 a�ucr���swgr sn.a�����1®®ice..cam.�mm.ro aa�riaxE rau��-aoo-�eo BUSH,ROED&HITCHINGS,INC. JOB Wp.su CIVIL ENGINEERS &LAND SURVEYORS 2009 Minor Avenue East SHEET NO. OF Seattle,WA 98102 CALCULATED BY DATE O'3'9 -7(206)323-4144 '/ BRH (206)323-7135 *Fax CHECKED BY DATE SCALE .. . ._....... z "'z z Il� ti SwPE o S.'J : ........ . .. ... ..........N . ..... .. .. . :. . 10 YX To Ao-cN _ _ fJq ti l S lt7E c Vev_)EF---r L' fJ. Q to o.So .S Y 4. 1 = 5,1 cis .. = M�r.1 swAri.�__. c�►e.� Go►`��eY R�r.�o�--F ��T�-I r�-, �jA�*-)1C 5. . . ►Jcrr k r�FPS ors s,-�-E ►f� .e Fkv R,P R� �s ►�6r R���rz-G-r� � � ->�._ M�►�. Rye__ WILL, __ E VSE ATE(... .rNIT _ � SGE h° Lc tom• r T1r�iLIGtJSS = \ OFr cr ,MEv►pa,l PRODUCT 204-1(Sin0le Sheets 205-1(Padded)®®Inc.,Groton,Mass.01471.To Order PHONE TOLL FREE 1-800-225-M X. BOND QUANTITIES WORK SHEET, RETENTION/DETENTION FACILITY SUMMARY SHEET AND SKETCH,AND DECLARATION OF COVENANT i • wz �°King County ?; , J21 adtding and Land Develop Division BOND QUANTITIES WORKSHEET ;;: 4-COWWBRCIAL/MIILTIPAMILY GROUP Page i of 2 I Date: I BALD Project No.: I Project Name: I Site Address: Fill in those item which pertain to this project and return to the Commercial/Multifamily Group - Site Development Review Unit. PUBLIC ROADWAY IMPROVEMENTS I PRIVATE ON-SITE IMPROVEMENTS Unit Price Unit I Quantity Price I Quantity Price I A.C.Pavement . . . . . . . . . . S 8.00 SY I S I S Cement Conc. Curb L Gutter . . . 9.00 LF I S I S Extruded Asphalt Curb . . . . . 2.50 LF I S I S Concrete Sidewalk . . . . . . . 9.00 LF I S I S I 6" pipe . . . . . . . . . . . . 7.50 LF I S I S I 8" pipe . . . . . . . . . . . . 10.00 LF I S I $ I 12" pipe . . . . . . . . . . . . 15.00 LF I S I S I 15" pipe . . . . . . . . . . . . 16.00 LF I S I S I 18" pipe . '. 20.00 LF I S I S I 24" pipe . . . . . . . ... . . . 26.00 LF I S ( S I " pix . . . . . . . . . . . . i s I s I 36 30.00 LF .48" pipe . . . . . . . . . . . . 50.00 LF I $ I S I 60" pipe . . . . . . . . . . . . 65.00 LF I S I S 72" pipe . . . . . . . . . . 80.00 LF I S Curb Intet . . . . . . . . . . . 500.00 EA. ( S C8 TYPE I L I-L . . . . . . . 750.00 EA. I S I S I C8 TYPE 11 - 48" . . . . . . . . 1400.00 EA. I S I S I CS TYPE 11 - 54" . . . . . . . . 2100.00. EA. I S I S C8 TYPE 11 - 72" . . . . . . . . 3400.00 EA. I S I S I C8 TYPE 1I - 96" . . . . . . . . 4000.00 EA. I S I S I Restrictor/Separator 12" . . . . 450.00 EA. I S I S I Restrictor/Separator 15" . . . . 500.00 EA. I S ( S I Restrfctor/Separator 18" . . . . 600.00 EA. I S ( S I Restrictor/Separator 24" . . . . 750.00 EA. I S I S i Fencing (around pond) . . . . . 10.00 LF I S I S I Riprap . . . . . . . . . . . . . 30.00 CT I S I $ I Rockery, Gabion L ecology wall . 7.00 SF I S I S I Concrete Retaining Wall . . . . 8.00 SF I S I S I Excavation for Pond . . . . . . 5.00 CY I S I $ I Infiltration Trench . . . . . . 15.00 LF I S I S I Flow Spreader . . . . . . . . . 15.00 LF I S I S I Trench Drain . . . . . . . . . . 15.00 LF ( S I S I Trash Rack . . . . . . . . . . 100.00 EA. I S ( S I Detention Pipe'Riser . . . . . . 400.00 EA. I S I S I S I S I - I S I S I I S I S I I SUBTOTAL S I SUBTOTAL S I I I � 1 � 1/90 BOND QUANTITIES *OSKBHEET King County Building and Land Development Division Cercial/1lultifanily Group peps 2 of 2 I EROSION/SEDIMENTATION I I CONTROL FACILITIES I Unit Price Unit I Quantity Price I Silt Fence . . . . . . . . . . . S 3.00 LF Seeding/Mulch . . . . . . . . . 3000.00 ACRE I S I Temporary Pond . . . . . . . . . 5.00 CY I S I Standpipe . . . . . . . . . . . 200.00 EA. I S I CB. Interi■ Protection . . . . . 25.00 EA. I S I Quarry Spelt/Rip-rap . . . . . . 30.00 CY I S I Rock Construction Entrance . . . 300.00 EA. I S I Pipe ( inch dia.) . . . . . . LF I S I I I SUBTOTAL S I gnature: I Telephone No.: I Firm Name: t � The following information will be completed by the King County Site Development Review Unit. PUBLIC ROADWAY IMPROVEMENTS: S PRIVATE ON-SITE IMPROVEMENTS: S EROSION/SEDIMENTATION CONTROL : S SUBTOTAL S 20% CONTINGENCY f TOTAL BOND AMOUNT S RIGHT-OF-WAY BOND S 98:BONDSHEE.WPF 11/25/1989 1/90 BOND QUAMITIES PRICE SCHEDULE King County Building and Land Development Division SUDIVISION PRODUCTS SECTION The unit prices shah on this schedule are recommended minimum prices consultants shall follow when complet- ing the 800 QUANTITIES WORKSHEET for engineering plan submittals. Unit prices shown reflect material and instalation costs averaged from bid quantities compiled by the Department of Public Works. Unit prices may not deviate from this schedule unless prior approval is obtained from the Subdivision Products Section. Unit Price Units Unit MISC.: ROAD CONSTRUCTION: Price Units Rip Rap Outfall Protection. 17.00 CY Clearing i Grubbing LS Access Road/Botlards. . . . 500.00 LS Excavation t Ertbankment S5.00 CY Fencing (around pond) . . . 9.00 LF A.C. Pavement L Rock Base 10.00 SY Infiltration Trench . . . . 15.00 LF Cement Conc. Curb i Gutter. 6.00 LF Flow Spreader . . . . . . . 15.00 LF Extruded Asphalt Curb . . . 4.00 LF Trash Racks . . . . . . . . 200.00 LF Concrete Sidewalk . . . . . 9.00 LF DRAINAGE PIPE: RETAINING WALLS S STRUCTURES: 12" Culvert . . . . . . . . 15.00 LF Retaining Watts . . . . . . LS 18" Culvert . . . . . . . . 20.00 LF Bridges . . . . . . . . . . LS 24" Culvert . . . . . 26.00 LF Rockery Facia Watts . . . . 5.00 SF 360 Culvert . . . . . . .. . 40.00 LF 48" Culvert . . . . . . . . 50.00 LF TRAFFIC CHANNELIZATION: 54" Culvert . . . . . . . . 60.00 LF Signalization . . . . . . . LS 60" Culvert 65.00 LF Channelization. . . . . . . LS . . . • • • • • 72" Culvert 80.00 LF SITE STABLIZATION/EROSION CONTROL: CATCH BASINS: Rock Construction Entrance. 300.00 ea. INLET 3 Grate . . . . . 500.00 ea. Seeding/Mulch . . . . . . . 3000.00 ACRE CB TYPE I Ii Grate . . . . . 750.00 ea. Silt Fence. . . . . 4.00 LF CS TYPE It 48" i Grate. . . 1400.00 ea. Netting/Jute Mesh . . . . . 5.00 SY CS TYPE II 54" S Grate. 1600.00 ea. Sediment Pond Standpipe 200.00 ea. CB TYPE I1 72" 3 Grate. . . 3400.00 ea. CB TYPE II 96" L Grate. . . 4000.00 ea. Riprap (quarry spans). . . 17.00 CY RETENTION/DETENTION CONTROL: Pond Excavation i Spillway. .5.00 CY Restrictor/Separator 120. 450.00 ea. Restrictor/Separator 18". 600.00 ea. Restrictor/Separator 240. 750.00 ea. 1/'90 � -VING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL ; RETENTIOWDETENTION SUMMARY SHEET Development ' Date Location ENGINEER DEVELOPER Name Name Firm Firm Address Address Phone Phone • Developed Site acres Number of Lots • Number of Detention FaaTities On Site • Detention provided in regional facility ❑ Regional FacTty location • No detention required ❑ Acceptable receiving waters • Downstream Drainage Basins f Immediate Major Basin Basin A Basin B Basin C Basin D TOTAL INDIVIDUAL BASIN Drainage Basin(s) Onsite Area Offsite Area Type of Storage Facility Live Storage Volume Predeveloped Runoff Rate 2 year 10 year Postdeveloped Runoff Rate 100 year 2 year 10 year Developed 0 100 year Type of Restriction Size of Orifice/Restriction Ortice/Restriction No.1 No.2 No.3 No.4 No.5 1/90 RnA taKiNG COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUALxt r RETENTIOWDETENTION SUMMARY SHEET � t ' Development Date Location ENGINEER DEVELOPER Name Name Fum Firm Address Address Phone Phone • Developed Site acres Number of Lots • Number of Detention Facilities On Site • Detention provided in regional facility ❑ Regional Facility location • No detention required ❑ Acceptable receiving waters • Downstream Drainage Basins Immediate Major Basin Basin A Basin B Basin C - Basin D TOTAL INDIVIDUAL BASIN A -B C Drainage Basin(s) Onsite Area Offsite Area Type of Storage Facility Live Storage Volume Predeveloped Runoff Rate 2 year 10 year Postdeveloped Runoff Rate 100 year 2 year 10 year Developed O 100 year Type of Restriction Size of Orifice/Restriction Orifice/Restriction No.1 No.2 No.3 No.4 No.5 1/'90 w A.w Y DECLARATION OF COVENANT ASSOCIATED WITH MULTI-FAMILY/COMMERCIAL RETENTION/DETENTION FACILITY Declaration of Covenant " In consideration of the approval of King County of a permit for *application No. relating to real property legally . described as follows : The undersigned as owner(s) covenants and agrees that: 1 . All necessary easements will be dedicated to King County for access to Inspect , maintain or repair the facilities In conformity with King County Code Section 9 .04. 120. 2. If King County determines that maintenance or repair work Is required to be done to the retention/detention facility existing on the above-described property, the director of the department of public works shall give the person to whom the permit was Issued pursuant to K.C.C. 9.04.030, the owner of the property within which the drainage facility Is located, the person or agent In control of said property notice of the specific maintenance and/or repair required. The director of the department of public works shall set a reasonable time in which such work Is to be completed by .the titleholders who were given notice. if the above required maintenance and/or repair is not completed within the time set by the director , the . county may perform the required maintenance and/or repair . Written notice will be sent to the titleholders stating the county's Intention to perform such maintenance. Maintenance work will not commence until at least seven days after such notice Is mailed. 3. if at any time King County reasonably determines that any existing retention/detentlon system creates any of the conditions listed In K.C.C. 9.04 .030 and herein Incorporated by reference, the director may take measures specified therein. 4. The titleholders shall assume all responsibility for the cost of any maintenance and for repairs to the retention/ detention facility. Such responsibility shall Include reimburse- ment to the county within 30 days of the receipt of the invoice for any such work performed. Overdue payments will require payment of Interest at the current legal :rate for liquidated Judgments. If legal action ensues, any costs or fees Incurred by the county will be borne by the partles responsible for said reimbursements. This covenant benefits all citizens of King County, touches and concerns the land and shall run with the land and be binding on all heirs, successors and assigns. 1 of 2 1/90 f lA .k n ti ,e These covenants are Intended to protect the value and '�. deslrabIIIty of the real property described rabove, and to benefit all the citizens of King County. they shall run with the land and be binding on all parties having or acquiring from: or their successors any right, title or Interest In the property or any part thereof , as well as their heirs, successors and assigns. They shall Inure to the benefit of each present or future successor In Interest of said property or any part thereof , or Interest therein, and to the benefit of all the citizens of King County. " Owner Owner STATE OF WASHINGTON) COUNTY OF KING )ss . On this day personally appeared before me: to 'me known o � to be the Individual (s) described In and who executed the within and foregoing Instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein stated . Given under my hand and official seal this day of 19 NOTARY PUBLIC In and for the State of Washington, residing at 2 of 2 1/90 XI. MAINTENANCE AND OPERATIONS MANUAL i KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL KING COUNTY,WASHINGTON SURFACE WATER DESIGN MANUAL APPENDIX A MAINTENANCE REQUIREMENTS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES Section No. Subject 1 Ponds 2 Infiltration 3 Closed Detention Systems 4 Control Structure/Flow Restrictor 5 Catch Basins 6 Debris Barriers 7 Energy Dlssapators 8 Fencing 9 Gates 10 Conveyance Systems 11 Grounds 12 Access Roads/Easements 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL RETENTIONIDETENTION SUMMARY SHEET SKETCH All retention/detention summary sheets must include a sketch prepared to the following criteria: 1. Heading for the drawings should be located at the top of the sketch, pre- ferably at the top right hand corner. The heading should contain: - North arrow point up or to the left - D9$ - Plat name or Snort Plat number - Date drawn or updated - Address (nearest the site) - Thomas Brothers page and grid number - Maintenance Division number 2. Label CB's and MH's with the plan and profile designation. Label the control structrue in writing or abbreviate with C.S. or O.W.S. 3. Pipes - indicate: Pipe size - Pipe lenghth - Flow direction - Use a single, heavyweight line Example: �0O-,�- _nrR�►� •Tanks - use a double, heavyweight line and indicate the size Example: U � :- 72" 5. Access Roads - Outline the limits of the road - Fill the outline with dots if the road is gravel. Label in writing if it is another surface 6. Other Standard Symbols: - Bollards �.�• some - Rip Rap M - Fences X-X - Ditches --D o—D 7. Label trash racks in writing. Example: }rash rack /�--""' 8. Label all streets with the actual street sign designation. If you don't know the actual street name, consult the plat map. 9. Include easements and lot lines or tract limits when possible. 10. Arrange all the labeling or writing to read from left to right or from bottom to top with reference to a properly oriented heading. Indicate driveways or features that may impact our access, maintenance or replacement. RD.2 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL MAINTENANCE REQUIREMENTS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES NO. 1 - PONDS mince Conditions When Maintenance_ Results Expected Component Defect is Needed When Maintenance Is Performed General Trash&Debris Any trash and debris which exceed 1 Trash and debris cleared from site. cubic foot per 1000 square feet (this is about equal to the amount of trash it would take to fill up one standard size office garbage can). In general, there should be no visual evidence of dumping. Poisonous Any poisonous vegetation which may No danger of poisonous vegetation where Vegetation constitute a hazard to County personnel County personnel or the public might or the public. Examples of poisonous normally be. (Coordination with vegetation include: tansy ragwort, poison Seattle/IGng County health Department) oak,stinging nettles,devils dub. Pollution Oil,gasoline,or other contaminants of No contaminants present other than a one gallon or more or any amount found surface film. (Coordination with that could: 1)cause damage to plant, Seattle/iGng County Health Department) animal,or marine life;2)constitute a fire hazard;or 3)be flushed downstream during rain storms. Unmowed Grass/ if facility is located In private residential When mowing Is needed,grass/ground Ground Cover area,mowing is needed when grass cover should be mowed to 2 inches In exceeds 18 Inches In height. In other height. areas,the general policy is to make the • pond site match adjacent ground cover and terrain as tong as there is no Interference with the function of the facility. Rodent Holes My evidence of rodent holes If facility is Rodents destroyed and dam or berm acting as a dam or berm,or any evidence repaired. (Coordination with Seattle/ of water piping through dam or berm via I(ing County Health Department) rodent holes. Insects When insects such as wasps and hornets Insects destroyed*removed from site. Interfere with maintenance activities. Tree Growth Tree growth does not allow maintenance Trees do not hinder maintenance access or interferes with maintenance activities. Selectively cultivate trees such activity(.e.,slope mowing,silt removal, as alders for firewood. vactoring or equipment movements). M trees are not interfering with access,leave trees alone. Side Slopes of Erosion Eroded damage over 2 inches deep Slopes should be stabilized by using Pond where cause of damage is still present or appropriate erosion control measure(s): where there is potential for continued e.g.,rock reinforcement,planting of erosion. grass,compaction. Storage Area Sediment Accumulated sediment that exceeds 10% Sediment cleaned out to designed pond of the designed pond depth. shape and depth; pond reseeded if necessary to control erosion. Pond Dikes Settlements Any part of dike which has settled 4 Dike should be built back to the design Inches lower than the design elevation. elevation. Emergency Rock Missing Only one layer of rock exists above native replace rocks to design standards. Overflow/Spillway soil in area five square feet or larger,or any exposure of native soil. f • A-1 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL MO. 2 - INFILTRATION Reeulb Expeefed 1a1 Defect s W1 �4alnbenance When Ma4Kenanw to Performed compomom General Trash 3 Debris See"Ponds'Standard No. 1 See'Ponds Standard No. 1 Poisonous See'Fonds'Standard No. 1 See'Ponds Standard No. 1 Vegetation PoiluUon See'Ponds'Standard No. 1 See'Ponds Standard No. 1 Unrrowed Grass/ See'Ponds'Standard No. 1 See'Fonds Standard No. 1 Ground Cover Rodent Holes See'Ponds'Standard No. 1 See'Ponds Standard No. 1 insects See'Ponds'Standard No. 1 See'Ponds Standard No. 1 Storage Area Sediment A percolation test pit or test of facility Sediment Is removed and/or facility is Indicates facility is only working at 90%of cleaned so that Infiltration system works its designed capabilities. according to design. Sheet Cover Sheet cover Is visible and has more than Sheet cover repaired or replaced. (if Applicable) three 1/44nch holes in it. Sump Filled With Any sediment and debris filling vault to Clean out sump to design depth. Sediment and 10%of depth from sump bottom to Debris(If bottom of outlet pipe or obstructing flow Applicable) Into the connector pipe. Titer Bags Filled with Sediment and debris fill bag more than Replace filter bag or redesign system. Sediment and 1/2 full. Debris pe Sediment and By visual Inspection little or no water Replace gravel in rock filter. ..�Iters Debris flows through filter during heavy rain storms. i A-2 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL • NO. 3 - CLOSED DETENTION SYSTEMS (PIPES/TANKS) Matntenance Conditions When Maintenance Reauits Expected Component Defect Is heeded > When wintenance Is Performed Storage Area Pkpged Air Vents One-half of the cross section of a vent Is Vw is free of debris and sediment blocked at any point with debris and sedimenL Debris and Accumulated sediment depth exceeds All sediment and debris removed from Sediment 10%of the diameter of the storage area storage area. for 1/2 length of storage vault or any point depth exceeds 15%of diameter. Example: 724nch storage tank would require cleaning when sediment reaches depth of 7 inches for more than 1/2 length of tank. Joints Between Any crack allowing material to be All Joints between tank/pipe sections are Tank/Pipe Section transported into facility. sealed. Tank/Plpe Bent Any part of tank/pipe is bent out of shape Tank/pipe repaired or replaced to design. Out of Shape more than 10%of its design shape. Manhole Cover not in Place Cover Is missing or only partially in place. Manhole is dosed. Any open manhole requires maintenance. Locking Mechanism cannot be opened by one Mechanism opens with proper tools. Mechanism Not maintenance person with proper tools. Working Boles into frame have less than 1/2 inch of thread (may not apply to seif-locking lids). - Cover Difficult to One maintenance person cannot remove Cover can be removed and reinstalled by Remove lid after applying SO pounds of lift. Intent one maintenance person. is to keep cover from sealing off access to maintenance. Ladder Rungs IQng County Safety Office and/or Ladder meets design standards and Unsafe maintenance person Judges that ladder is allows maintenance persons safe access. unsafe due to missing rungs, misalignment,rust,or cracks. Catch Basins See'Catch Basins'Standard No.5 See'Catch Basins'Standard No.5 1/90 A-3 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL ' 4 - CONTROL STRUCTURE/FLOW RESTRICTOR Malntmmmve DNse! CCotoditions,When Mal na ntenoe Resuka Expected Component When Maintenance is Performed General Trash and Debris Distance between debris build-up and Ail trash and debris removed. prtdudes bottom of orifice plate is Was than 1-1/2 Sediment) f"L Structural Damage Strucb"is not securely attached to Structure securely attached to wall and manhole wall and outlet pipe structurs outlet pipe. should support at least 1.000 pounds of up or down pressure. Strucb"is not in upright position (allow Structure in correct position. up to 10%from plumb). Connections to outlet pipe are not Connections to outlet pipe are watertight, watertight and show signs of rust structure repaired or replaced and works as designed. Any holes—other than designed holes— Structure ture has no holes other than in the structure. designed holes. Cleanout Gate Damaged or Cteanout gate is not watertight or is Gate is watertight and works as designed. Missing missing. Gate cannot be moved up and down by Gate moves up and down easily and Is one maintenance person. watertight Chain leading to gate Is missing or Chain is in place and works as designed. damaged. • Gate is rusted over 50%of its surface Gate is repaired or replaced to most area. design standards. .rice Plate Damaged or Control device Is not working property Plate is in place and works as designed. Missing due to missing,out of place,or bent orifice plate. Obstructions Any trash,debris,sediment,or vegetation Plate is free of all obstructions and works blocking the plate. as designed. Overflow Pipe Obstructions Any trash or-debris blocking (or having Pipe is free of all obstructions and works the potential of blocking)the overflow as designed. pipe. Manhole See'Closed Detention Systems'Standard See'Closed Detention Systems'Standard No.a No.3. Catch Basin See'Catch Basins'Standard No.5. See'Catch Basins'Standard No.S. A-4 1/'90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL - • NO. 5 - CATCH BASINS Maletlenar+ce Condbtlons When Maintenance Results Expected Component Defect is Needed When Makd nance Is Performed General Trash&Debris Trash or debris of more than 1/2 cubic No trash or debris located Immediately In (Includes foot which Is located Immediately in front- front of catch basin opening. Sediment) of the catch basin opening or is blocking capacity of basin by more than 10%. Trash or debris on the basin)that No trash or debris In the catch basin. exceeds 1/3 the depth from the bottom of basin to invert of the lowest pipe Into or out of the basin. Trash or debris In any Inlet or outlet pipe Inlet and outlet pipes free of trash or blocking more than 1/3 of its height. debris. Dead animals or vegetation that could No dead animals or vegetation present generate odors that would cause within the catch basin. complaints or dangerous gases (e.g., methane). Deposits of garbage exceeding 1 cubic No condition present which would attract foot in volume. or support the breeding of Insects or rodents. Structural Damage Comer of frame extends more than 3/4 Frame is even with curb. to Frame and/or Inch past curb face into the street(f Top Slab applicable). Top slab has holes larger than 2 square Top slab Is free of holes and cracks. . inches or cracks wider than 1/4 inch (intent is to make sure all material is running into the basin). Frame not sitting flush on top slab,i.e., Frame is sitting flush on top slab. separation of more than 3/4 inch of the frame from the top slab. Cracks in Basin Cracks wider than 1/2 inch and longer Basin replaced or repaired to design Walls/Bottom than 3 feet,any evidence of soil particles standards. entering catch basin through cracks,or maintenance person Judges that structure is unsound. Cracks wider than 1/2 Inch and longer No cracks more than 1/4 inch wide at the than 1 foot at the joint of any inlet/outlet joint of inlet/outlet pipe. pipe or any evidence of soil particles entering catch basin through cracks. Settlement/ Basin has settled more than 1 inch or has Basin replaced or repaired to design Misalignment rotated more than 2 inches out of standards. alignment. Fire Hazard Presence of chemicals such as natural No flammable chemicals present. gas,oil,and gasoline. Vegetation Vegetation growing across and blocking No vegetation blocking opening to basin. more than 10%of the basin opening. Vegetation growing In inlet/outlet pipe No vegetation or root growth present. Joints that is more than six inches tall and less than six inches apart. Pollution Nonflammable chemicals of more than No pollution present other than surface 1/2 cubic foot per three feet of basin film. length. A-5 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL CATCH BASINS (Continued) mairrten w" Condltlgne when Malnananoe Resuke Expected, Component Defect M 10e.1 when Malnaname Is Performed Catch Basin Cover Cover Not in Piece Cow is missing or only partially In place. Catch basin cover Is closed. Any open catch basin requires maintenance. Locking Mechanism cannot be opened by one Mechanism opens with proper tools. Mechanism Not maintenance person with proper tools. Wbrking Botts into frame have less than 1/2 Inch of thread. Cover Dff&utt to One maintenance person cannot remove Cover can be removed by one Remove Ild after applying 80 Ibs.of lift;Intent is maintenance person. keep cover from sealing off axes to maintenance. Ladder Ladder Rungs Ladder Is unsafe due to missing rungs. Ladder meets design standards and Lknsafe misalignment,rust,cracks,or sharp allows maintenance person safe access. edges. Metal Grates Grate with opening wider than 7/8 Inch. Crate openings meet design standards. Of applicable) Trash and Debris Trash and debris that Is blocking more Grate free of trash and debris. than 20%of grate surface. Damaged or Grate missing or broken member(s)of Grate is in place and meets design Missing the grate. standards. • A-6 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL • NO. 6 - DEBRIS BARRIERS (e.g. Trash Racks) Mdnan.noe eA dtlons Whee MaY+t mrm Reedb EVocbd Component Detect Is Me.d.d When "oonance Is Perform.d General Trash and Debris Trash or debris that Is plugging more Barrier der to naive capacity flow.. than w%of the openings in the barrier. mew Dernsgsd/Wssing ears re bent out of shape more than 3 Bars in place with no bends more than Bars inches. 3/4 inch. Bars are missing or entire barrier Is Bars In plan according to design. miesirp. Bars are boss and rust Is causing SOX Repair or replace barrier to design deterioration to any part of barrier. standards. i A-7 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL "J7 - ENERGY DISSIPATORS alribn.no., Conditions when Makvuwtonce Resuhs Expec" Compa+ent Defect Is Needed when Maintenance Is Performed x m Rock pad hissing or Moved Only one layer of rock exists avow nad" Replace rocks to design standard. Rode soil in area five square feet or larger,or any exposure of nets soil. Dispersion Trench Pipe Plugged with Accumulated sediment that exceeds 209E Pipe cleaned/flushed so that It matches Sediment of the design depth. design. Not Discharging Visual evidence of water discharging at Trench must be redesigned or robul t to Water Property concentrated points along trench (normal standard. condition Is a'sheet flow"of water along trench). Intent Is to prevent erosion damage. Perforations Over 1/2 of perforations in pipe are Clean or replace perforated pipe. Plugged plugged with debris and sediment. Vhdw Flows Out Maintenance person observes water Facility must be rebuilt or redesigned to Top of"Distributor' flowing out during any storm less than standards. Catch Basin the design storm or it is causing or appears likely to cause damage. Receiving Area Water In receiving area Is causing or has No danger of landslides. Oversaturated potential of causing landslide problems. Intemal• 'f e/Chamber Wbm or Damaged Structure dissipating flow deteriorates to Replace structure to design standards. Posts,Baffles, 1/2 or original size or any concentrated Sides of Chamber worn spot exceeding one square foot which would make structure unsound. Other Defects See'Catch Basins'Standard No.5 See'Catch Basins'Standard No.5 A-8 1/90 KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL NO. 8 - FENCING fW<frananoe can Malnt.nance Results E=pecbd Compoeent Deleot Is Needed Vown Maintormuve Is Perfornwd , General Mlssing or Broken Any detect in the fence that permits easy Parts in place to provide adequate Parts entry to a facility. security. Parts broken or missing. Broken or missing parts replaced. Erosion Erosion more than 4 Inches high and 12- No opening under the fence that exceeds 16 Inches wide permitting an openft 4 Inches in height under a fence. Wke Fences Damaged Parts Posts out of plumb more than 6 Inches. Posts plumb to within i-1/2 Inches. Top rails bent more than 6 inches. Top rail free of bends greater than 1 Inch. My part of fence(including posts,top Fence Is aligned and meets design rails,and fabric)more than 1 foot out of standards. design alignment Missing or loose tension wire. Tension wire In place and holding fabric. Missing or loose barbed wire that is Barbed wire in place with lea than 3/4. sagging more than 2-1/2 Inches between inch sag between posts. posts. Extension arm missing,broken,or bent Extension arm in place with no bends out of shape more than 1-1/2 inches. larger than 3/4 inch. Deteriorated Paint• Part or parts that have a rusting or scaling Structurally adequate posts or parts with or Protective condition that has affected structural a uniform protective coating. Coating adequacy. Openings in Fabric Openings in fabric are such that an 8- No openings in fabric. Wi-diameter ball could fit through. A-9 1/90 RING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL jdL 9 - GATES wtatn+bnanc• ; Conddhione When Maiwnsnee ; When M mctW strymnanoe Is P�fo�n+.d Component Defect Is Needed General Demaoed or Lossino.gab or bddng de i0es. Gdae and locldng devices in plaos. Ong fibrn ers Intact and tubed. Cate is woddng Broken a rtds.lrp�s web that oats hinges cannot be"ally opened and dosed by a freely. nt*vww w person. Cab Is out of plumb no than 6 Incim Gate Is aligned and vertical. and more than 1 toot out of design iMaing stretcher bar,strstdwr bands, Stretcher bar.bands,and ties in place. and ties. Openings in Fabric See'Fencing'Standard No.8 See'Fencing'Standard No.8 A-10 1/90 � 1I o L�# � eYPAS5 MAN H 1 -- SoLib LocKI^1� Lip TYPE IC 7V ' f++ -rE 3 ly, sp +/- a _. W/5OL1b LOCKING LID ISO I I.E. ; -q co 2'� I SADOL� 6 wI r.JEIu M ^-TY. IL -72-" f I.E. I.E.=13.00 W/ 50LI D LOGK1 NG LI D STONE 13 ---5 W KEY WAL 1.24 12"SD I Z j 42 LF - IZ" �sD I. E.= 12.(,0, 4 " RL 1 SLF^• ° a7 J -� W Q lU I o.s % 1.E.= 12.7(&, S r.0 -a-00- TY. T- T. E. = 15.00 - - I li 1. E. = 13, 25 i q IN5TALl_ GONG. CURB l.E.= 13. ICo Al ti GUJTE_K ALONG ENTIRI- ' 7 W -J / Now DRIVE Ila L-r -12 c 240 Lf✓ 1 Z" Q I.E.= 1-3-00c.j3/#& '-m IL 4$" � o j � c�v Q � W�/501 �LD�K((�1G LC v� a-) U•5% 0 2-00 LF- 5 00TW K WATER DETAILT.---- 776. o �n _ ---- -- - - - - - - 15 00' E " QUAL f TY .SWALI< a7 Q 2 /e SCALE: 1 10' `n i 1.30 ~ 'r tom- 175LF•-I'WlDr- 010FILTFZATION 6WAL-9-:- 2.5 1 2LF Cr2J '-v�rTs OF=1 LTR�81 -ATio ma 12"-wl D>< Lo `� - r �� ► - -_ _._ x =t s.. - _ . ..- GUrZl3 t3REAK I 70 IL ^�g" f�.l.: - w�- Ft W/ FZ I P RAF' rD '1.� S WA L r- I I \ _ WIC /_� � 1 ( r.,•• �`•' ri�.+,R+:�1J�j1•.- �' - z. ' w..++..rr-.- `� III � - �,> � - ps � - 5 � . ra:15 I(�•3o 15,55 \ � / I m1I ti { 35 LE^• 4"IZL . `213 LF- IZ" � O. / ��- .a 2.00 [- . . � T:E. 00 ' I 00- _ � �� IZDo1=LINE G.C3 '�' -r E,� _ I. E. = 15.02 1 G/ ' 1 "• ` ' I d3 T:E.= 19.20 I. L.1= 13.4 Co 16 35 J 15.90 I f - I IT11=.= 1(0.70 \ L- 15(o L-1=- 8"RL cr' I I ri I �1 1.00 70 y � I = r /($.co3 u QD l` (00 L r,.- C0� RL / 170 LF'- 0"R 2.(o7% •� / a7 f.00' F Pc.- 9.50 , 18.9�3 3 I T.E._ 15.ro goarLIN� c.o.- _ z 1.9. = 13.10 TE: Iq.3o aI7 \ _ FeWrLIN0. <�6 E e. 17.50// > �Q--- Pf2DvI DE SLEEVE TE = I-7.0Q D5 17.50 I / UN D E FZ FaOri N G - ...I E.= 15.30 � Ds cd Ojos, 40 NIL _- 1 L.F. mt � It 78 Lr= 0.a r� �" 7 -•- R.4/LR GONG.GUTTER _ L_128 - J Y _ - 15 5W L E a'7 a'72.g?1r/o ����- �, -� N 88'4 'l9`' c �369•14fl {� i 3 _ o.50 q, R - \ 1 Ldop D ETA IL _ 75 /G _5Ht��j l 110 $ �t 6r� 40, moeG. EASEMENT S 88'15'00' E 392.74' 15'W/DE(/T/L/Ty Z ,MATCH (;X IST A.G.IP I ,� r J I 3 W EASEMENT 4 Z W /� GRADE ALONG 1 N W 3 2 2 labUTH EDGE Or min i� LAVING i FZDOf=LINE G.O. Qj I a BYPASS GB aT.E.= I(o.SO �IIiW / I 0 0 W SHT. G TAI L ON ►.E.= 14.00 e " ~ / I 6� PRINTED FEB 2 21995 ! 1 IP, "SH ROW &hl i�hnvl;5 aos 'vim I I .E5, 7 Ty. JE 4,b W/`SOLID LOCKING LID EXPIRES I I.E.= 12.307 12" 6E + _ - • .. ... rsr _,,. ...,.. .-_...,,x..y.-.?e,.s, s- -..' -- - -- - - ._.. . rm. « 9Y ,caa:. 4vir sa:omcerraoc:.axu.::: •,u§= 3:.L'�w k. - .,... ...i_.. .. _...__._ .... SoLIP Locicl�1� Lip BYPASS MANNOL5- 1 --- -Ty P� If 7?_ I. n - �= W/SOLI LI LOCKING D B. q. Vr� Is✓Xr 3co , - 1 - q -7 5 (1 2'r T.E. rl I E = Z SAODL� Gxr 3c� PrPE Ilo 11,70-, I. E.•_ G.F3.#04 TY. IL, -72rr L IG.=13.00 W/ SOLI D LOGKI NG Li D 13 r- i3t T E. __ I5.25 KEYSTONE WA11_ — I.E. "•S , — 1 1.24 12D lu Z 42 oLF - 12u -6c> I. E.= 12.(,0; 4 " RL G.E3. 00- Ty. T_ W T.E. = 15.00 I. E. = 13, 2$ INSTALL. GONG. GUK0 1. ,= 13, j Q NGUT�R PLONG ENTIRE- ICo ORTH DRIVE .; 18 Lr -12rl 7 A . J 75 L E / 4LF^' " � % / 3 f / 240 LF^. 12 If �Q� I.E.= 13.0D 3 � G��Co^� -TY. _ _ ►. o IC q 2.00 Lr- 5 DOT TICK WA. , N W /SOLI A LOCK IN _� N ` ➢',� — - __- - - -(rat--- _ 8 -8 15'00" E _ aL)*NLITY .�rVA,l_1 MQ2�/� DETAIL � / _ - °' �- •,,� - - - - --_-a2�- - =11.30 -� -- __- _ - - - 776.36' SCALE. 1 1o'' / I _ = =` - - - -- - - - I.E.-- - - -- - - -;- - - -- - ---- _ - _ ►I — - - _ - -- - - 175 LF-I'W1D�_t31OFfLTRAT(ON 6WAt - - - _(1 1 �_06)- - / 1r _ - �,E. 82 LF... 2 5'-in71_D to I i WA - 9 E LTRATIoN WA- \-- /7- 1 _ �� Iro I2"-WI DE I fill 1 toll I t8.4 - 92M � � {� ��OM SWALF- lS WIDE UT/CITY ? ✓ EQ SEME/YT m �' DS O5 S tz3.15 I I FI ' D5 dl 35 LP - q uIZL 21 '6; l\ � 2,00°/'o f 1 a7 O,5% 12001%L!N E- 40. i 10, 0 l( IZOOr-LINe. G.Q 1=LINE G.O. T'E. _ If3.00 N ; # ca T-E.- 19.20 T E, l.. �. - 15.02 co I :, V' L 13.4Co 18=3` I � •� � c� 1 I 17 L-- 15� L1=� $"RL w 15.90 I I I 1.0070 � I�0.20 LF�- Rl_ col / 17� LAN I c15 t r a7 2.G7% / o - of mob, c /� ..' KCOrLI 2Eo G.O. F P. /. 9 5�J i8.'o u! - __. _ -I-- I ( _ T.E.— % . l f. 4-Z niA4:'LE I.E.— 15.10 , 18..96 Y�F'LIN G.O. .01 o �� 17 cl.g `<�s> pIZDVIDf� SLEEVE Fe - E.O. 7.5 10 T E• ,Q .- 17.eD 55 UNDER Fc0TING X. IS Trio � X ._ - �q•� ( . - _ �._�ii �L 10 134 r-GoNC.GUTTER ` 78 i. rF g• - . �- 7 �, 5W LE- a'7 / a'DZ. /o = te,4 _ — o,50ga a�� _ Lf128- _ 1.E•= �-- \ )h — — N 88'47,;19�' R�36g.14- 11 1a. - 42.82`' L DETAIL �75 ON 6Ht_�/i� IN % p �.. �ci 4 wine R.aiL EASEMENT / I ro 00, 1 r, S 88 15'00 ' E - r — �� ExiS /o• s.r� �. �'- - 392.74' _ P � 1 1 i II IS'WIDE UT/L/Ty --- / T r 1- GH X I sr A.e.P I r EASEMENT MA GRADE ALONG I � z �� minx vtJf7-tG DGE or O k t�, Q (Doi N tj - # W 2,ui t20pFLIN E G.O. Q W IL I h ( t3YPAss ca 2. T.E.= 1&.50 3 WW / / 1 AND � SHT. G TAIL ON I.E.= 14.00 Q =�" " � / / i � OtiVAStI�• �V PRINTED o '� FEB 2 21995 l G.13.40 7 7Y. TL 40" � W/ SOLID 1-oGKING LID P.I%S� RUtU�rlllLhnvl;s L � I.E.= 12.301 12" SE EXMEs 12/01/ G��" G #ol 'f K� 5L k3YPAS5 M,4N1"-fOL�# 1 -r 1�4 LAN I` a7 5O L Ip L•o co D -Ty PE- IE 7 an I '1'�. s 15• SO +�- �� W/SOLIb LOCKING L-ID (�X1� 3co , 2 I• �• = q• -75 (IZ" T.I-. = . Ilo Sav�L� �>ll 3cvi1 PIPE I.E. = 11.70-> � I. E. I C.B. 04 -�-TY. M, -72n 4> I.E.= I.E.=13,00 W// SOLID LOGKI NG LID = I5.2s WALL_ 2 L I2�� p I.E. _ 1 I.Z4 12"SD _ to F e (. E.- 12.(00) 4 " RL I .SLF^• " a7 - --S Z Z d I e o.S /o I2.7�, S" �L C.o.�08^- TY. L _ _ qLr-- , T.E. = 15.00 flu INSTALL GONG. 6UR13 I• �. = 13, 2S i 1 = 13.5 �� J GUTIEIZ ALONG, ENTIRE , I(o W �I No1zrH DRIVE 1la LF^-IZ 0 W // I � A (075 L P +/_ 'a7 I,00 /a o° _ 4 l.� qa w �.� 240 Lr- 12" �Q/ I.E.= 13.00 3 G Ft3 � TY. f. 48 --- _ _ a'� r7.5% ��/ 2U0 Lr- 5' DOTTIO� WATT DE1L ° j N W /SoLlC7 LDCKII�tGt LI c�v 3�'J� � 15'pp' E QUAL i TY .SWALE. a'7 Q 2'/0 / `� _ , '�' =;r Q; ---r�; °;'; - _ _ - - - - -t12�- -- _- - - -� :- __ - -z' ------� .. _ _ 776.36' SCALE: 1"= 10' In 4 - o — - --_- - - - - - - - - I.E.=11.3D- - - - - - - - - - - - -___ - - _ _ - - - -__ - - -. --- _ -- _ 175 L F--I'W I D E E-510 P_I LTRATI ON 6 WAL9-- 1/7f75�7-$1 O r-1 LTRATIONco I -- " 2 :,�.,� r ' - _ 12"-W I D E 1 .,.., W RIP RAp To SWALE BaT`fZ2M /Sr WIOE UTILITY fall ` ,� , EASEMENT 05 Ts D5 ti p5 NII [ �� �� 35LP^- �l'�kL .� 213L.�o12" x I I I all1 a) 2.00 F a7 0..5 / KDOF'L�N� G.O. WI I -'\ 120o)=LINE G.G� x 1=L I N E G.O. T.E. = 18.00 I a I ao TE.= 19.20 h r E - i. E. = 15.02 1635 i N I. E.�= 13.4(o I.E..= I(a.7o \ L-- RL �� 15.90 I I.oo 12.;10rLIN E O C. 113.10 W r J T.E. = 19.20 F P c= 9.50 �J I.E.- 15.10 �. 18.9�3 3 r' I � <ig � .,�, TE.- 15.10 _ �>✓LIN� G.O." /ice � Z � . i 1. 15. = 13.10 I�i.30 / / I 17.50 _ 0 - PRbGI DE SLEEVE Tt:.= 1-7.90 ps 17.50 /• ss UNDER. FOar►NG I DS Ds ;i 1$.-IS 2� c I 1 1 34 E GONG.GUTTER �2 2Qio '�- ! 7' _ -- PAILIROA 3 — 5 5W LE a'7 0.50go L=128 - _ N 88'47,:19`' _ 36g 4' c� A / 42.82 ` I E 1 � � L DTAIL E75 /G ON SHt. G ` �r r :� R �2 2'2 i I Tf0 6) l L- �Is�'� 40, moe RA ie- AlJ EASEME/VT YV ATE _ r_ n S 88'15'00 ' E L �`If'� — — ExiSr. i0^ sa ice— - 392.74. II -3 ExisT. 101, so. - -- - fl l5'WlDE(/T/LITy- Z - / I ,�, 3 EA SEMEI\/T O 1-1 / MATCH EX I S7 A.G.r ( J GRADe ALONG d1 r\N W 3 2 2 i / 15� 7UTH EDGE or F�AVING 14, �- W �WW F200PLINE G.0. o W viCL / � wND h � BYPASS C8#2 T.E. = 1(0.60 3 � 1�� W �/ ►°,Ill SEE DETAIL ON ►.E.= 14.00 0 ( I sH-r. G PRINTED , FEB 2 21995 t .j i?l;$I-+ � �PF 26879 GI�c�O v� I c.13.-407 TY TL 40" W/ SOLID LOCKING LID sS1�NAL 12.307 1 EXPwE3 I.E.= Z" SE 12ro11 C14f - I