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Home My WebLink AboutD_Critical_Areas_Exemption_LUA19-000122_190530DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT PLANNING DIVISION CERTIFICATE OF EXEMPTION FROM CRITICAL AREAS REGULATIONS EVALUATION FORM & DECISION DATE: PROJECT NUMBER: PROJECT NAME: PROJECT MANAGER: May 30, 2019 LUA19-000122 Lake Youngs Ct SE Storm & Water Improvements Angelea Weihs, Assoicate Planner OWNER: City of Renton 1055 S Grady Way Renton, WA 98057 CONTACT: Jared McDonald, City of Renton - Stormwater 1055 S Grady Way Renton, WA 98057-3232 LOCATION: 2617 LAKE YOUNGS CT SE DESCRIPTION: The City of Renton Public Works Department is requesting approval of a critical areas exemption for a proposed Storm System Improvement Project located within the public right-of-way (ROW) of Lake Youngs Ct SE, which is a dead end street located at the intersection of Lake Youngs Way SE and Lake Youngs Ct SE. The purpose of the project is to provide stormwater conveyance along Lake Youngs Ct SE, in response to formal public complaints, in order to prevent the constant ponding of water along the street. The project area is approximately 0.32 acres in size. The current site ROW is developed with a concrete road, sidewalks, street lighting, and water, sewer, power, and communication utilities. The site is surrounded by 13 residential homes, with driveways connecting to the street. The project proposes to construct a new storm conveyance system and an 8” water main service with connecting metered laterals for the adjacent homes. The new stormwater conveyance system will collect stormwater runoff along Lake Youngs Ct SE and mitigate the ponding issues along the street. No tree removal is proposed with the project application. The project site is mapped within a moderate coalmine hazardous area; however, due to the scope of work, which will involve minimal grading, no geotechnical report was required for this project. All surfaces impacted by the construction will be replaced back to the original existing condition. CRITICAL AREA: Moderate Coalmine Hazard EXEMPTION JUSTIFICATION: RMC 4-3-050C.3.e.iii: Utilities, Traffic Control, Walkways, Bikeways Within Existing, Improved Right-of-Way or Easements Page 1 of 3 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 City of Renton Department of Community & Economic Development Certificate of Exemption from Critical Areas Regulations Lake Youngs Ct SE Storm & Water Improvements LUA19-000122 FINDINGS: The proposed development is consistent with the following findings pursuant to RMC section 4-3-050C.2.d: i. The activity is not prohibited by this or any other provision of the Renton Municipal Code or State or Federal law or regulation; ii. The activity will be conducted using best management practices as specified by industry standards or applicable Federal agencies or scientific principles; iii. Impacts are minimized and, where applicable, disturbed areas are immediately restored; iv. Where water body or buffer disturbance has occurred in accordance with an exemption during construction or other activities, revegetation with native vegetation shall be required; v. If a hazardous material, activity, and/or facility that is exempt pursuant to this Section has a significant or substantial potential to degrade groundwater quality, then the Administrator may require compliance with the Wellhead Protection Area requirements of this Section otherwise relevant to that hazardous material, activity, and/or facility. Such determinations will be based upon site and/or chemical-specific data. DECISION: An exemption from the Critical Areas Regulations is hereby Approved. SIGNATURE & DATE OF DECISION: Date Jennifer Henning, Planning Director May 30, 2019 The above land use decision will become final if the decision is not appealed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). APPEALS: An appeal of this administrative land use decision must be filed in writing together with the required fee to the City of Renton Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057, on or before 5:00 p.m., on June 13, 2019. RMC 4-8-110 governs appeals to the Hearing Examiner and additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510. Page 2 of 3 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 City of Renton Department of Community & Economic Development Certificate of Exemption from Critical Areas Regulations Lake Youngs Ct SE Storm & Water Improvements LUA19-000122 RECONSIDERATION: Within 14 days of the decision date, any party may request that the decision be reopened by the approval body. The approval body may modify his decision if material evidence not readily discoverable prior to the original decision is found or if he finds there was misrepresentation of fact. After review of the reconsideration request, if the approval body finds sufficient evidence to amend the original decision, there will be no further extension of the appeal period. Any person wishing to take further action must file a formal appeal within the 14-day appeal time frame. EXPIRATION: Five (5) years from the date of decision (date signed). Enclosures Page 3 of 3 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 \\rv12rfps02\Depts\PW\File Sys\SWP - Surface Water Projects\SWP-27 - Surface Water Projects (CIP)\27-4017 2617 Lake Youngs CT SE\1000 Correspondence\1003-City\27-4017 Project-Memo-Lake Youngs CT SE.docx\JMmc PUBLIC WORKS DEPARTMENT M E M O R A N D U M DATE: October 31, 2018 TO: Michael Stenhouse, Maintenance Services Director Jennifer Henning, Planning Director Jayson Grant, Pavement Management Technician Chris Barnes, Transportation Operations Manager David Christensen, Wastewater Utility Engineering Manager Abdoul Gafour, Water Utility Engineering Manager Bob Hanson, Transportation Systems Manager Vangie Garcia, Transportation Planning Manager Richard Marshall, Surface/Waste/Special Projects Manager Brianne Bannwarth, Development Engineering Manager Vanessa Dolbee, Current Planning Manager FROM: Ron Straka, Surface Water Utility Engineering Manager, x7248 STAFF CONTACT: Jared McDonald, Surface Water Utility Engineer, x7293 SUBJECT: Lake Youngs CT SE Storm System Improvement Project SWP-27-4017 Attached for your review is the project proposal for the Lake Youngs CT SE Storm System Improvement Project SWP-27-4017. Please complete and return the Management Acceptance page to Jared McDonald by November 14th, 2018. Please contact Jared McDonald if you have any questions. Attachments cc: Gregg Zimmerman, Administrator Lys Hornsby, Utility Systems Director EXHIBIT 1 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 Project Proposal Lake Youngs Ct SE Storm System Improvement Project SWP-27-4017 PROJECT OBJECTIVE The purpose of the Lake Youngs Ct SE Storm System Improvement Project is to provide stormwater conveyance along Lake Youngs Ct SE to prevent the constant ponding of water along the street. After installation of the new stormwater system, the street would be overlaid through the Transportation Street Overlay program. PROJECT BACKGROUND/DESCRIPTION The City of Renton received a formal complaint regarding the standing water along Lake Youngs Ct SE in April 2016. Currently, there is no stormwater conveyance within the street. It appears that at one time the stormwater was collected via a combined sewer/storm system that at this time has been plugged to prevent stormwater from entering the sewer system. After site visits and evaluations, the Surface Water Utility has determined that the street is in need of a new stormwater conveyance system to allow for adequate drainage. Due to age and use, Lake Youngs Ct SE is in need of street pavement repair in several locations. The Street Maintenance Section has been deferring the overlay of the street due to the need for the drainage improvements. The project will first consist of the Surface Water Utility constructing the storm system improvements, followed then by the street being included in the Transportation Overlay Program. We are recommending that the street be overlaid after the installation of the new stormwater conveyance system. FACILITY CONFIGURATION The current utility configuration in Lake Youngs Ct SE contains water, sewer, gas, power, and telecommunications. There is no stormwater conveyance at this time. The existing sewer in the street ROW is an 8-inch concrete pipe with four Type 2 catch basins connecting the system. The existing domestic water in the street ROW is a 4” steel pipe. The existing sewer and domestic water connect into existing systems located in Lake Youngs Way SE. A new piped storm conveyance system is to be designed and constructed through this project to provide adequate drainage along the ROW. The new storm will include new conveyance pipe and catch basins that will connect into the existing storm catch basin located at the intersection of Lake Youngs Way SE and Lake Youngs Ct SE. Actual configuration and layout of the storm system will be put together during the design phase of this project. Easements: At this time no easement is foreseen to be required. If easements are found to be required, the City of Renton will develop and obtain the easement as necessary. Surveying and Geotechnical Investigation: A survey is being put together by 1 Alliance Geomatics, LLC and shall be completed by December 31st, 2018. No geotechnical investigation is to be conducted. DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 Page 2 of 5 \\rv12rfps02\Depts\PW\File Sys\SWP - Surface Water Projects\SWP-27 - Surface Water Projects (CIP)\27-4017 2617 Lake Youngs CT SE\1000 Correspondence\1003-City\27-4017 Project-Proposal-Lake Youngs CT SE.doc Design: The Surface Water Utility will provide the design for the new stormwater conveyance system and will also prepare the TIR, construction plans, specifications, and engineered cost estimate. Environmental Review Permits: No environmental review comments are foreseen to be required. If environmental review permits are found to be required during design, the City of Renton will develop and obtain them as necessary. Construction: Construction for stormwater improvements is estimated to begin in spring 2019 and end in early summer 2019 to allow time for Transportation to overlay the street in the summer/fall of 2019. The contractor will likely use Royal Hills DR SE, Lake Youngs Way SE, and Lake Youngs CT SE to reach the construction site. Normal construction hours for the project are 7:00 a.m. to 5:00 p.m., Monday through Friday. Work on weekends will only occur with approval from the city. While working on Lake Youngs Ct SE, access to the street will be restricted to “Local Access Only”. After construction all streets will be restored to existing access. Access to local driveways will be maintained, except when construction needs to cross a driveway. The city will attempt to limit driveway blockages to one day or less. The contractor will be required to file a Traffic Control Plan with the city to identify hauling routes and traffic control measures for the project. Erosion control measures, such as storm drain inlet protection and filter fabric fences per the King County Surface Water Manual, will be used. Any soil stockpiles not in use will be covered with plastic sheets during rainy periods. All construction equipment will be required to have muffler and exhaust systems in good working order. PRELIMINARY COST ESTIMATE Total Cost: $250,000 *Cost does not include overlay of street, which would be funded by the Transportation Street Overlay Program. Does include stormwater design and construction. *Cost will be updated after the preliminary design is complete FUNDING SOURCE The Lake Youngs CT SE Project is to be fund by the Surface Water Utility 2019 Capital Improvement Program and the Transportation Overlay Program. DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 Page 3 of 5 \\rv12rfps02\Depts\PW\File Sys\SWP - Surface Water Projects\SWP-27 - Surface Water Projects (CIP)\27-4017 2617 Lake Youngs CT SE\1000 Correspondence\1003-City\27-4017 Project-Proposal-Lake Youngs CT SE.doc PROJECT SCHEDULE Design October 2018 Final Design January 2019 Advertise for Bids February 2019 Begin Construction April 2019 End Construction September 2019 (Including street overlay) (Preliminary Schedule, subject to revisions) INVOLVEMENT AND PARTICIPATION Community: Formal complaints have been sent into the Surface Water Utility by the resident at 2617 Lake Youngs Ct SE regarding the standing water along the street. The Surface Water Utility has reached out to the resident and informed them that the city will resolve the issue by providing stormwater conveyance through this project. Once the design phase of the project has begun, property owners near the project site shall be informed of the planned work to be done. If a temporary construction easement is required from a property owner, the Surface Water Utility will work with that owner to acquire one. Property owners nearby will once again be informed when the construction phase of the project is scheduled and of the work to be done. Other Agencies: At this time no other agencies are involved. Private Utilities: Below ground power and communication lines are located along Lake Youngs Ct SE. Private utilities will be contacted by the Surface Water Utility and sent a copy of the draft plans to identify and locate their utility lines. The Surface Water Utility will coordinate with other city utilities and franchise utilities to determine if their respective utility replacement or improvements could be proposed in coordination with the project. The contractor will be responsible to contact the One-Call Utility Notification Center to locate public utilities before starting construction. STAFFING Project Management: The project manager is Jared McDonald, Surface Water Utility. Mapping: The surveyor is 1 Alliance Geomatics, LLC. DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 Page 4 of 5 \\rv12rfps02\Depts\PW\File Sys\SWP - Surface Water Projects\SWP-27 - Surface Water Projects (CIP)\27-4017 2617 Lake Youngs CT SE\1000 Correspondence\1003-City\27-4017 Project-Proposal-Lake Youngs CT SE.doc Geotechnical Investigations: N/A Design Engineer: The design is to be done internally by the City of Renton. In-House Reviews: Coordination with other city departments will be done during the design phase of the project. A city design team meeting to review the proposed design with other city departments will be scheduled, as needed. A city design team may be formed if a sufficient number of other city departments indicate the need for one. If you have any projects that may affect this proposal, please provide a scope of work, location figure, and description of how they may be related. If you have any questions, please contact Jared McDonald at x7293 or by email at jmcdonald@rentonwa.gov. Please complete the attached Management Acceptance and Commitment form and return it to Jared McDonald by November 14th, 2018. DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 Page 5 of 5 \\rv12rfps02\Depts\PW\File Sys\SWP - Surface Water Projects\SWP-27 - Surface Water Projects (CIP)\27-4017 2617 Lake Youngs CT SE\1000 Correspondence\1003-City\27-4017 Project-Proposal-Lake Youngs CT SE.doc Management Acceptance and Commitment for: Lake Youngs CT SE Project SWP-27-4017  We concur with the project scope and schedule as outlined in this project proposal. We are assigning (Ext. ) as our representative on the design team.  We concur with the project scope and schedule as outlined in this project proposal. We are not assigning a representative to participate on the design team, but reserve our right to participate in the standard review processes.  We feel that the following item(s) are of concern or interest in relationship to this project and would like to bring them to you attention: (Signature) (Date) (Name, Section and/or Division) The project proposal is located with moderate coalmine hazards. Therefore, a Critical Areas Exemption is required for the proposed work. Angelea Weihs, Planning Division, CED November 13, 2018 7312Angelea Weihs DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 2,400 200 Lake Youngs Ct SE This map is a user generated static output from an Internet mapping site and is for reference only. Data layers that appear on this map may or may not be accurate, current, or otherwise reliable. 10/15/2018 Legend 136068 THIS MAP IS NOT TO BE USED FOR NAVIGATION Feet Notes 136 WGS_1984_Web_Mercator_Auxiliary_Sphere COR Maps - GIS jmcdonald@Rentonwa.gov City and County Boundary Addresses Parcels Renton Fire Hydrant Hydrant Other System Control Valve Water Gravity Pipe Water Main Water Service Areas Lift Station Clean Outs Manholes Casings Pressurized Mains Renton Private Gravity Mains Renton Private Wastewater Service Areas KC Metro Manholes KC Pressurized Mains KC Gravity Mains Network Structures Inlet Manhole EXHIBIT 2 PROJECT AREA FIG. 1: PROJECT AREA DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 8645500170 8645500180 8645500190 8645500200 8645500210 8645500220 8645500230 8645500240 8645500250 8645600040 8645600030 8645500130 8645500140 8645500150 8645500160 LAKE Y O U N G S C T S E LA KE YOUNG S W AY SEBID SETSWP - 27 - 4017LAKE YOUNGS CT SE STORM & WATER IMPROVEMENTS COVER SHEET Sheet Index Sheet Number Sheet Number Sheet Title 1 C100 COVER SHEET 2 C101 STANDARD PLAN NOTES & CONSTRUCTION SEQUENCE 3 C200 TESC & DEMO PLAN 4 C201 GENERAL NOTES, CONSTRUCTION SEQUENCE NOTES, TESC & DEMO DETAILS 5 C300 PAVING & RESTORATION PLAN 6 C301 PAVING & RESTORATION DETAILS 7 C400 STORM DRAINAGE PLAN 8 C401 STORM DRAINAGE PROFILE & DETAILS 9 C402 STORM DRAINAGE DETAILS 10 C403 STORM DRAINAGE DETAILS 11 C500 WATER SYSTEM PLAN 12 C501 WATER SYSTEM DETAILS 13 C502 WATER SYSTEM DETAILS 14 SHT#1 TOPOGRAPHIC MAPPING GENERAL NOTE BASIS OF BEARING VERTICAL DATUM ALL RESIDENTIAL PROPERTY LINES SHOWN ARE APPROXIMATE BASED UPON CITY OF RENTON GIS MAPS WASHINGTON STATE PLANE COORDINATE SYSTEM NORTH ZONE (4601), NAD83(91), US SURVEY FOOT (GRID) N 65° 39' 57" E [SET MAG ( 1-ALLIANCE #102) TO SET MAG (1-ALLIANCE #100]] MEASUREMENT ARE US SURVEY FEET. NAVD88 NSITE MAP LAKE YOUNGS CT SE STORM & WATER IMPROVEMENTS VICINITY MAP N PROJECT LOCATION CHECKED FOR COMPLIANCE TO CITY STANDARDS DATE DATE DATE SW: W: MAINT:JARE D MCDON A LDPROF ESSIONAL E N G IN E ERREGISTER E DSTATE O F WASHI N GTON05/09/19Richard W Marshall 05/09/2019 05/09/2019 WATER UTILITY agafour 05/16/2019 MICHAEL J A MES MI T CHELLPRO F ESSIONAL E N G IN E ERREGISTER E DSTATE O F WASHI N GTONEXP. 11/21/2019 EXHIBIT 3 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 L A K E YOU NG S W A Y S E LAKE Y O U N G S C T S E 8645500170 8645500180 8645500190 8645500200 8645500210 8645500220 8645500230 8645500240 8645500250 8645600040 8645600030 8645500130 8645500140 8645500150 8645500160 RIGHT OF WAY (TYPICAL) 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 5 4 4 4 4 4 4 4 4 4 2 4 4 4 4 4 6 6 4 4 6 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 9 9 99 9 8 8 8 3 3 2 1 2 8 5 5 3 2 2 10 4 5 11 12 4 14 13 4 2BID SETSWP - 27 - 4017LAKE YOUNGS CT SE STORM & WATER IMPROVEMENTS N Feet 1:240 4020010 TESC & DEMOLTION LEGEND CLEARING LIMITS INLET SEDIMENT PROTECTION SAWCUT: APPROX. 2" TO 3" DEPTH REMOVE SIDEWALK/DRIVEWAY REMOVE ASPHALT REMOVE CURB AND GUTTER KEY NOTES PRESERVE AND PROTECT EXISTING ASPHALT. PROVIDE NEAT SAWCUT. PRESERVE AND PROTECT EXISTING SIDEWALK AND/OR DRIVEWAY. PRESERVE AND PROTECT EXISTING UTILITY. PLUG PIPE(S) PER 2018 WSDOT STANDARD SPEC 7-08.3(4) PRESERVE AND PROTECT EXISTING TREE. KEYNOTE NOT APPLIED PRESERVE AND PROTECT EXISTING CURB AND GUTTER. ABANDON IN PLACE EXISTING WATER MAIN AND EXISTING WATER LATERALS UPON TRANSFER OF DOMESTIC SERVICES. SAWCUT TO BE DONE AT EXISTING JOINT. EXISTING NEWSPAPER STAND SHALL BE PERMANENTLY RELOCATED ACROSS THE STREET. SEE SHEET C300 FOR MORE INFORMATION. EXISTING MAILBOX STAND SHALL BE TEMPORARILY RELOCATED ACROSS THE STREET DURING CONSTRUCTION AND THEN RETURNED ONCE THE PROPOSED SIDEWALKS HAVE BEEN CONSTRUCTED. SEE SHEET C300 FOR MORE INFORMATION. EXISTING 2" BLOW-OFF ASSEMBLY TO BE ABANDONED, LID AND TOP SECTION OF VALVE BOX TO BE REMOVED. ENCASE ASSEMBLY WITH CDF. EXISTING SECTION OF CONCRETE SIDEWALK TO BE REMOVED AND REPLACED. EXISTING 4" GATE VALVE ON STEEL WATER MAIN, TO BE ABANDONED, LID AND TOP SECTION OF VALVE BOX TO BE REMOVED, UPON COMPLETION OF NEW WATER MAIN; SEE SHEET C500. ENCASE GATE VALVE WITH CDF. EXISTING SECTION OF ROADWAY TO BE REMOVED AND REPLACED. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TESC & DEMOLITION NOTES 1.ALL EXISTING IMPROVEMENTS WITHIN CLEARING LIMITS SHALL BE DEMOLISHED AND REMOVED FROM THE SITE UNLESS OTHERWISE IDENTIFIED. 2.THE WORK UNDER THE CONTRACT INCLUDES ALL CLEARING NECESSARY TO COMPLETE ALL WORK ASSOCIATED WITH THIS PROJECT. IT IS THE CONTRACTOR'S RESPONSIBILITY TO FULLY REVIEW THE SITE CONDITIONS AND TO CORRELATE THESE OBSERVATIONS WITH THE PROJECT WORK AND INCLUDE ALL NECESSARY DEMOLITION, WHETHER SHOWN OR NOT, AND INCLUDE ALL SUCH COSTS IN THE SCOPE OF THE WORK. 3.CONTRACTOR SHALL LEGALLY DISPOSE OF ALL DEMOLISHED AND REMOVED MATERIALS FROM THE SITE UNLESS OTHERWISE NOTED. 4.ALL EXISTING WATER METER BOXES TO BE REMOVED UPON TRANSFER OF DOMESTIC SERVICES. 5.THE TEMPORARY EROSION AND SEDIMENT CONTROL (TESC) PLAN OUTLINED HEREIN IS CONCEPTUAL. THE CONTRACTOR IS REQUIRED TO SUBMIT A FINAL TEMPORARY WATER POLLUTION AND EROSION CONTROL PLAN IN ACCORDANCE WITH SPECIAL PROVISIONS SECTION 1-07.15. 6.THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION , MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE APPLICANT/ESC SUPERVISOR UNTIL ALL CONSTRUCTION IS APPROVED. 7.THE ESC FACILITIES SHOWN ON THESE PLANS ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G., ADDITIONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.). 8.THE ESC FACILITIES SHALL BE INSPECTED DAILY BY THE APPLICANT/ESC SUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY REVIEWS OF THE ESC FACILITIES DURING THE WET SEASON (OCT. 1 TO APRIL 30) AND OF MONTHLY REVIEWS DURING THE DRY SEASON (MAY 1 TO SEPT. 30). 9.PUBLIC STREETS SHALL BE CLEANED ONCE PER DAY OR AS DIRECTED BY THE CITY. FLUSHING OF STREETS WITH WATER WILL NOT BE ALLOWED. 10.IN ACCORDANCE WITH DEPARTMENT OF ECOLOGY REQUIREMENTS, WASTEWATER FROM CEMENT CONCRETE MASONRY, OR ASPHALT CONCRETE CUTTING, OR POURING OPERATIONS SHALL NOT BE DISCHARGED INTO STORM DRAINAGE SYSTEMS OR SURFACE WATERS. IMPERVIOUS SURFACES CONTAMINATED WITH SEDIMENT FROM GRIT AND CUTTING, PLANNING OR PULVERIZING OPERATIONS SHALL BE VACUUM-CLEANED TO PREVENT CONTAMINANTS FROM ENTERING THE STORM DRAINAGE SYSTEM OR SURFACE WATERS. 11. ALL DEWATERING WATER AND RUNOFF WITHIN CONSTRUCTION AREAS SHALL BE TREATED VIA SEDIMENTATION, FILTRATION THROUGH VEGETATION IN APPROVED AREAS, OR PORTABLE FILTRATION SYSTEMS (UTILIZING TANKS AND FILTERS), AS NEEED, PRIOR TO DISCHARGE TO DOWNSTREAM SYSTEM IN ORDER TO MEET ALL APPLICABLE LOCAL, STATE AND FEDERAL WATER QUALITY REGULATIONS. CONTRACTOR MAY ALSO DISCHARGE TO THE SANITARY SEWER SYSTEM AFTER OBTAINING APPLICABLE PERMITS AND MEETING PRETREATMENT REQUIREMENTS. 1 C201 TESC & DEMO PLAN GENERAL NOTES 1.SEE DRAWING C300 FOR PAVING AND RESTORATION IMPROVEMENTS. SEE DRAWING C400 FOR STORM IMPROVEMENTS. SEE DRAWING C500 FOR WATER IMPROVEMENTS. 2.SEE DRAWING C101 FOR ADDITIONAL TESC NOTES 1 C101 JARED MCDON A LDPROF ESSIONAL E N G IN EERREGISTER E DSTATE O F WASHI NGTON05/09/19 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 8645500170 8645500180 8645500190 8645500200 8645500210 8645500220 8645500230 8645500240 8645500250 8645600040 8645600030 8645500130 8645500140 8645500150 8645500160 RIGHT OF WAY (TYPICAL) L A K E YO UNG S W A Y S E LAKE Y O U N G S C T S E -0+31 0+00 1+00 2+00 3 + 0 04+004+55 BP: -0+30 .79 EP: 4 + 5 4. 8 5 PI: 4+ 0 9. 8 5 PI: 0+00 .00PC: 2+13 .85 PT: 3 + 1 9. 8 5 CB#8 CB#7 CB#5 CB#6 CB#3 CB#2 S61° 1 0' 1 4. 0 0 " W 2 1 3. 8 5 0'N32 ° 04 ' 08 .00 "W 90 .000 ' S61° 10' 14.00"W 30.793'N32° 04 ' 08 .0 0 "W 45 .000 ' L=106.00' R=70.00'Δ=86°45'44" N 173433.27 E 1306703.80 CGCG3 C301 CG CG CG3 C301 3 C301 3 C301 M MMMMMMM MMMMMMATCH EXISTING CROWN (TYPICAL) CB#9 CB#10 EX. CB#1 EX. MH#1 CG CG3 C301 CB#4 CO#1 CO#2 CO#3 CO#4 CO#5 EX. CB#2 18.00' RELOCATED NEWSPAPER STAND. FOUNDATION AND STAND TO BE INSTALLED IN-KIND TO EXISTING CONDITION. PROVIDE SMOOTH TRANSITION FROM BACK OF SIDEWALK TO EXISTING GROUND. MAXIMUM SLOPE ALLOWED IN VEGETATED AREA IS 33% RELOCATED MAILBOX STAND TO BE INSTALLED IN-KIND. SIDEWALK SHALL BE WIDENED AROUND MAILBOX TO PROVIDE A 4' MIN. CLEAR ZONE TO MEET ADA STANDARDS.4.89' EX. CB#3 RIGHT OF WAY CB#1BID SETSWP - 27 - 4017LAKE YOUNGS CT SE STORM & WATER IMPROVEMENTS PAVING & RESTORATION PLAN N Feet 1" = 20' 4020010 PAVING & RESTORATION LEGEND RESTORED CEMENT CONCRETE TRAFFIC CURB AND GUTTER RESTORED CEMENT CONCRETE SIDEWALK RESTORED UTILITY PATCH FOR FLEXIBLE PAVEMENT RESTORED CONCRETE DRIVEWAY PAVING & RESTORATION NOTES 1.ALL PROPOSED WORK IS TO MATCH EXISTING GRADES UNLESS OTHERWISE NOTED. 2.LANDSCAPED AREAS IMPACTED BY CONSTRUCTION WORK SHALL BE FULLY RESTORED TO EXISTING CONDITION. 3.CENTERLINE ALIGNMENT LAYOUT SHOWN ON SHEET C300 TO BE USED FOR LOCATING PROPOSED UTILITES ON SHEETS C400 - C502 4.UNLESS NOTED OTHERWISE, RESTORE AND ADJUST ALL UTILITY CASTINGS TO FINAL GRADE. RESTORE PAVEMENT MARKINGS WITHIN AREAS DISTURBED BY CONSTRUCTION. 5.ALL EXISTING PAVEMENT MARKINGS THAT ARE DISTURBED ARE TO BE REPLACED IN KIND PER THE CONTRACT DOCUMENTS. 6.SEE DRAWING C400 FOR STORM IMPROVEMENTS. SEE DRAWING C500 FOR WATER IMPROVEMENTS. CG 1 C301 2 C301 4 C301 5 C301 6 C301 JARE D MCDON A LDPROF ESSIONAL E N G IN E ERREGISTER E DSTATE O F WASHI N GTON05/09/19 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875 Technical Information Report Project: 2617 Lake Youngs Ct SE Storm & Water Improvements Lake Youngs Ct SE Renton, WA 98058 SWP 27-4017 PREPARED BY: Jared McDonald, PE City of Renton, Civil Engineer III REVIEWED BY: Ken Srilofung, PE City of Renton, Civil Engineer III Date: April 2019 Entire DocumentAvailable in Laserfiche Submittals Folder EXHIBIT 4 DocuSign Envelope ID: 7F3B6C5F-38D5-4BD5-9C7A-0E4CABA8A875