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Home My WebLink AboutR-380810LLJ Q Z F- U 0 a_ W Z J � a � 2 Ir O (D 06 0 a 0 cc LL Q W J Z W W Cr. (49 SEE SHEET GR -04 FOR LOT DRAIN INFORMATION r---- 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 \S 1 - Cal 2 WakWq Daye BWare You CV 811 U Ift V am wil ILM - �"- -9 Cm*w W,wtrM,OKWA) AV CONSULTING ENGINEERS L L C DRAWN: 33400 8th Avenue South ( ® I I S Suite 205 L/ T Federal Way, WA 98003 r RMIMAL WW (253) W. -4113 www.esmcivil.com EVERETT (425) 297 -NM Civil Engineering Land Surveying Land Pkaxwng Public Works I Project MwKgement ( Landscape Architecture ESM JOB #258 -044 -013 AV SCALE: 1'11111111111141W DESIGNED- DRAWN: ONE NICH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDNGLY CHECKED: S L/ T r LO 1 REVISION -TRACT A (LANDSCAPE) o� I SCALE: 1'11111111111141W DESIGNED- DRAWN: ONE NICH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDNGLY CHECKED: S L/ T r LO 1 D o� f I -a J � Q S W � w � � Q W Q I > a- QU Z I a- F- 0 T llT O0 00 00 _ V _ min _ _ _ SURVEYED: SCALE: 1'11111111111141W DESIGNED- DRAWN: ONE NICH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDNGLY CHECKED: APPROVED: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 J LEGEND W PROPOSED STORM DRAIN PROPOSED SANITARY SEWER PROPOSED WATER MAIN ALL LOTS WILL HAVE A MAXIMUM IMPERVIOUS AREA OF 65%, A REDUCTION OF 109 FROM THE MAXIMUM ALLOWED ZONING OF 75% IN ORDER TO MEET THE LOT BMP REQUIREMENTS. SURFACE WATER STANDARD PLAN NOTES n SCALE: 1 " = 40' 40' 20' 0 40' so' 1. These notes shall appear on projects for the surface water utility. for their intended use. Each outlet shall halve free - flowing, positive drainage to 2. Before any construction or development activity occurs, a pre - construction meeting an approved stormwater corweyance system or to an approved otAM location. must be held between the City of Renton plan review section and the applicant. b. Outlets on each lot shall be located with a five- foot -high, 2" x 4" stake marked 3. All design and construction shall be in accordance with the Renton Municipal Code "storm" or " drain ". The stub-out shah extend above surface level, be visible, and (RMC), the latest edition of the Standard Specifications for Road, Bridge and be secured to the stake. Municipal Construction prepared by WSDOT and the American Public Works c. Pipe material shall conform to underdrain specificabor►s described in Chapter 4 of Association (APWA), as amended by the City of Renton Public Works Department. It the Surface Water Design Manual and, if non- rnetaNic, the pipe shah be placed in shall be the sole responsibility of the applicant and the professional civil engineer to a trench with a tracing wire above or other acceptable detection. correct any error, omission or variation from the above requirements found in this d. Private drainage easeYnerft are required for drainage system designed to plans. all corrections shall be at no additional cost to the City. convey flows through individual lots. 4. Approval of this road, grading, parking and drainage plan does not constitute an e. The appikant/oont actor is reg n ksible for coordinating the locations of al stubout approval of any other construction (e.g. domestic water conveyance, sewer conveyance lines with respect to other utilities (e.g. power, gas, belepiiione, conveyance, gas, electrical. etc.)The surface water drainage system shall be television). constructed according to the approved plans, which are on file in with the City. Any f. All individual stub -outs shall be privately owned and maintained by the lot home deviation from the approved plans will require written approval from the City of owner. Renton Public Works Department, Surface Water Utility Section. g. Storm drainage pipe systems shall not peneb-ate building foundations, except for 5. A copy of these approved plans must be on the job site whenever construction is in sump pump discharge lines used to drain crawl spaces, provided the sump pump progress. system includes baddlow prevention or a check valve. 6. Grading activities (site alteration) are limited to the hours of 7 a.m. to 7 p.m. 23. All disturbed pervious areas (oompacbed, graded, landscaped, etc.) of the Monday through Saturday and no work on Sunday is allowed, unless otherwise development site must demonstrate one of the following: The existing duff layer approved with a written decision by the City of Renton. shall be staged and redistributed to maintain the moisture capacity of the soil, OR; 7. It shall be the applicant's /contractor's responsibility to obtain all construction Amended soil shall be added to maintain the moisture capacity. easements necessary before initiating off -site work. Easements require City review 24. Proof of liability insurance shah be submitted to the City prior to construction permit and approval prior to construction. issuance. 8. Franchised utilities or other installations that are not shown on these approved plans 25. Issuance of the building or construction permits by the City of Renton does not shall not be constructed unless an approved set of plans that meet all requirements relieve the owner of the continuing legal obligation and/or kabiarty connected with of Chapter 4 of the Surface Water Design Manual are submitted to the City of storm surface water disposition. Further, the City of Renton does not accept any Renton. obligation for the proper functioning and maintenance of the system provided during 9. Datum shall be NAVD 88 unless otherwise approved by the City of Renton. construction. Reference benchmark and elevations are noted on the plans. 26. The Contractor shall be responsible for providing adequate safeguard, safety 10. Any dewatering system necessary for the construction of stormwater facilities must devices, protective equipment, Aaggers, and any other needed actions to protect the be submitted to the City for review and approval. life, health, and safety of the public, and to protect property in connection with the 11. All utility trenches and roadway subgrade shall be backfilled and compacted to performance of work. Any work within the traveled right -of -wally that may interrupt 95 percent density, standard proctor. normal traffic flow shall require a traffic control plan approve by the Public Works 12. Open cutting of existing roadways for non - franchised utility or storm drainage work Department, TransportiMon Systems Di► vision. All sections of the WSDOT Standard is not allowed unless specifically approved by the City of Renton and noted on these Specifications 1 -07 -23 Traft Control shall apply. approved plans. Any open cut shall be restored in accordance with the City of 27. Project located within the aquifer protection area (APA) shall comply with Special Renton trench restoration standards. Requirement #6 of the Surface Water Design Manual and Aquifer Protection 13. All sedimentation /erosion facilities must be in operation prior to clearing and building Regulations (RMC 4-3 -050). construction, and they must be satisfactorily maintained until construction is completed and the potential for on -site erosion has passed. 14. All retention /detention facilities must be installed and in operation prior to or in conjunction with all construction activity unless otherwise approved by the Public Works Department, Surface Water Utility Section. 15. All pipe and appurtenances shall be laid on a properly prepared foundation in accordance with the current State of Washington Standard Specification for Road and Bridge Construction. This shall include necessary leveling of the trench bottom or the top of the foundation material, as well as placement and compaction of required bedding material, to uniform grade so that the entire length of the pipe will be supported on a uniformly dense, unyielding base. All pipe bedding shall be APWA Class "C', with the exception of PVC pipe. 16. Steel pipe shall be aluminized, or galvanized with asphalt treatment #1 or better inside and outside. 17. All drainage structures, such as catch basins and manholes shall have solid locking lids. All drainage structures associated with a permanent retention /detention facility shall have solid locking lids. 18. Building and other structures shall be placed in accordance with Table 4.1 Easement Widths and Building Setbacks Lines. 19. All catch basin grates shall be depressed 0.10 feet below pavement level. 20. All driveway culverts located within City of Renton right -of -way shall be of sufficient length to provide a minimum 3:1 slope from the edge of the driveway to the bottom of the ditch. Rock for erosion protection of roadside ditches, where required, shall be of sound quarry rock placed to a depth of one (1) foot and must meet the following specifications: 4 - 8 inch rock / 40 - 70% passing; 2 - 4 inch rock / 30 - 40% passing; and less than 2 inch rock / 10 - 20% passing. 3808 10 21. All building downspouts and footing drains shall be connected to the storm drainage system, unless approved by the City plan reviewer or Surface Water Utility Section. An accurately dimensioned, certified as -built drawing of this drainage system will be submitted to the City upon completion. 22. Drainage outlets (stub -outs) shall be provided for each individual lot, except for CHECKED FOR CO LIANCE TO CITY STANDARDS those lots approved for infiltration by the City. Stub -outs shall conform to the following: 2 a. Each outlet shall be suitably located at the lowest elevation on the lot, so as to service all future roof downspouts and footing drains, driveways, yard drains, r and any other surface or subsurface drains necessary to render the lots suitable VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATUM CITY OF GREEN LEAF 12/30/2014 STORM DRAIN KEY MAP nalim - RENTON PA, OPIPAWC No- iR Planning /Building /Public Works Dept. KEY —RD UTILITY PERMIT #14004398 SHM: 13 ' :30 � � to 'T1 LJ �Cn D Z z� z T D O D Z 0 Z C 3 m M v r x -- O i �n g � En Z T C 'Z M T M D 'T1 LJ �Cn D Z z� z T D O D Z 0 Z C 3 m M v r x -- O i �n g � En