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W SURFACE WA TER STANDARD PLAN NOTES
r 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT AC77WTY OCCURS, A PRE -CONSTRUCTION MEET/NG 17. ALL DRIVEWAY CULVERTS LOCATED W/TH/N CITY RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH
SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY REFERRED TO AS THE CITY, THE TO PROVIDE A MIN/MUM 3.• 1 SLOPE FROM THE EDGE OF THE DRIVf_WA Y TO THE BOTTOM OF THE
WAPPLICANT, AND THE APPLICANT'S CONTRACTOR. DITCH.
2. THE APPLICANT SHALL BE RESPONSIBLE FOR SECURING ALL NECESSARY CITY, STATE, AND 18. ROCK FOR EROSION PROTECT/ON OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE OF SOUND
W FEDERAL PERMITS PRIOR TO CONSTRUCTION QUARRY ROCK PLACED TO A MIN/MUM DEPTH OF ONE (1) FOOT AND SHALL MEET THE FOLLOWING
C� SPECIFICA TIONS.-
3. ALL STORM DRAINAGE IMPROVEMENTS SHALL BE DESIGNED AND CONSTRUCTED IN ACCORDANCE 4 - 8 INCH ROCK / 40 - 707 PASSING;
WITH THE LATEST EDITION OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON 2 - 4 INCH ROCK / 30 - 409 PASSING; AND
Q SWOM), RENTON MUNICIPAL CODE (RUC), AND THE STANDARD SPECIFICA TONS FOR ROAD, BRIDGE LESS THAN 2 INCH ROCK / 10 - 209 PASSING.
AND MUNICIPAL CONSTRUCTION PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS
ASSOCIATION (APWA) IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT TO CORRECT 19. FOOTING DRAINAGE SYSTEMS AND ROOF DOWNSPOUT SYSTEMS SHALL NOT BE INTERCONNECTED
Q ANY ERROR, OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THE PLANS. AND SHALL SEPARATELY CONVEY COLLECTED FLOWS TO THE CONVEYANCE SYSTEM OR FLOW
O ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO THE CITY. CONTROL FACILITY ON THE SITE, UNLESS APPROVED BY THE CITY. FOOTING DRAINS SHALL NOT
BE CONNECTED TO ON -SITE BMPS.
4. APPROVAL OF THE ROAD, GRADING, PARKING, BUILDING, AND DRAINAGE PLAN DOES NOT
V CONSTITUTE AS APPROVAL OF ANY OTHER CONSTRUCTION (E.G. WATER, SEWER, GAS, ELECTRICAL 20. THE END OF EACH STORM DRAIN STUB SHALL BE CAPPED. A aEANOUT TOPPED WITH A
ETC.). PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A BOLT-LOCK/NG LID MARKED 'STORM" SHALL BE LOCATED AT THE PROPERTY LINE OR AT THE
Q SEPARATE REV/EW AND APPROVAL BY THE CITY PRIOR TO CONSTRUCTION. THE SURFACE WATER POINT OF CONNECTION OF A PRIVATE STORM DRAINAGE CONVEYANCE SYSTEM PER THE CITY
DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS. ANY STANDARD PLAN 227.00.
QJW DEVIATION FROM THE APPROVED PLANS W/LL REQUIRE COORDINATION FOLLOWED BY WRITTEN
W APPROVAL FROM THE CITY. 21. ALL STORM SYSTEM EXTENSIONS SHALL BE STAKED FOR LINE AND GRADE BY A SURVEYOR
LICENSED IN WASHINGTON STATE, AND CUT SHEETS SHALL BE PROVIDED TO THE CITY PRIOR TO
5. A COPY OF THE APPROVED PLANS SHALL BE ON THE JOB SITE WHENEVER CONSTRUCTION /S IN CONSTRUCTION.
�I PROGRESS.
Q 22. ALL NEWL Y-INSTALLED AND NEWL Y-REHA81LITATED (PUBL/C AND PRIVATE) STORM CONVEYANCE
Q 6. THE LOCATIONS OF ALL EXISTING UTILITIES SHOWN HEREON HAVE BEEN ESTABLISHED BY FIELD SYSTEMS SHALL BE INSPECTED BY MEANS OF REMOTE CCTV ACCORDING TO THE CITY STANDARD
SURVEY OR OBTAINED FROM AVAILABLE RECORDS AND SHALL THEREFORE BE CONSIDERED PLAN 266.00. CCTV INSPECTIONS AND REPORTS SHALL BE SUBMITTED TO THE CITY PRIOR TO
APPROX/MATE ONL Y AND NOT NECESSAR/ Y COMPLETE. IT IS THE SOLE RESPONSIBILITY OF THE RECEIVING APPROVAL TO INSTALL PROJECT CURBS, GUTTERS AND/OR PAVEMENT.
APPLICANT AND THE APPLICANT'S CONTRACTOR TO INDEPENDENTL Y VERIFY THE ACCURACY OF
ALL UTILITY LOCATIONS SHOWN, AND TO FURTHER DISCOVER AND AVOID ANY OTHER UT/L/TIES 23. ALL STORM SYSTEMS AND CONNECTIONS TO EXISTING MAINS SHALL BE TESTED IN ACCORDANCE
NOT SHOWN HEREON THAT MAY BE AFFECTED BY THE IMPLEMENTATION OF THIS PLAN. THE WITH SECTION 7-04 J(1) OF THE WSD0T STANDARD SPECIFICATIONS AND IN THE PRESENCE OF A
APPLICANT SHALL RECORD ON THE AS -BUILT DRAWINGS ALL UNDOCUMENTED UTILITIES REPRESENTATIVE OF THE CITY. STORM DRAIN STUBS SHALL BE TESTED FOR ACCEPTANCE AT THE
DISCOVERED AND ANY CHANGES TO THE APPROVED PLANS. THE APPLICANT SHALL IMMEDIATEL Y SAME TIME THE MAIN STORM /S TESTED.
NOTIFY THE ENGINEER OF RECORD IF A CONFLICT EXISTS.
24. FOR ALL DISTURBED PERVIOUS AREAS (COMPACTED, GRADED, LANDSCAPED, ETC.) OF THE
7. VERTICAL DATUM SHALL BE NA VD 88 AND HORIZONTAL DATUM SHALL BE NAD 83 (WA STATE DElELOPMENT S/TE, TO MAINTAIN THE MOISTURE CAPACITY OF THE SOIL ETHER STOCKPILE AND
PLANE, NORTH), UNLESS 0THERW/SE APPROVED BY THE C/TY. REFERENCE BENCHMARK, DATUM, REDISTR/BUTS THE EXISTING DUFF LAYER AND NAT1Vf- TOPSOIL OR AMEND THE SO/L W/TH
AND ELEVATIONS SHALL BE NOTED ON THE PLANS. COMPOST IN ACCORDANCE WITH STANDARD PLAN 264.00.
5
8. ALL UTILITY TRENCH BACKF/LL AND ROADWAY SUSGRADE SHALL BE COMPACTED TO 959
MAX/MUM DRY DENSITY PER SECTION 2-03.3(14)0 - COMPACTION AND MOISTURE CONTROL TESTS
OF THE WSD0T STANDARD SPECIFICA TIONS. IN PERMEABLE PA VEMENT AND OTHER /NF/L TRATION
AREAS, ALL TRENCH BACKF/LL SHALL BE FIRM AND UNYIELDING BUT /N NO CASE SHALL BE
COMPACTED TO MORE THAN 929 OF MAX/MUM DRY DENSITY.
9. OPEN CUTTING OF EX/STING ROADWAYS FOR STORM DRAINAGE WORK /S NOT ALLOWED UNLESS
SPECIFICALL Y APPROVED BY THE CITY AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT
SHALL BE RESTORED /N ACCORDANCE W/TH THE C/TY TRENCH RESTORAT/ON STANDARDS.
10. ALL PIPE AND STRUCTURES SHALL BE STAKED FOR SURVEY L/NE AND GRADE PRIOR TO THE
START OF CONSTRUCTION. WHERE SHOWN ON THE PLANS OR WHERE DIRECTED BY THE C/TY, THE
EX/S7NG MANHOLES, CATCH BASINS, OR INLETS SHALL BE AD✓LISTED TO THE GRADE AS STAKED.
11. ALL FLOW CONTROL FACILITIES SHALL SE INSTALLED AND /N OPERATION PRIOR TO,, OR /N
CONJUNCTION WITH, ANY CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED BY THE CITY.
12. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERL Y PREPARED FOUNDATION IN
ACCORDANCE WITH THE CURRENT STATE OF WASHINGTON STANDARD SPECIFICATION FOR ROAD
AND BRIDGE CONSTRUCT/ON 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 MA TER/AL TO UN/FORM GRADE SO THA T THE ENT/RE LENGTH OF THE P/PE WILL
BE SUPPORTED ON A UN/FORML Y DENSE, UNYIELDING BASE. ALL P/PE BEDDING AND BACKF/LL
SHALL BE AS SHOWN ON THE CITY STANDARD PLAN 220.00, 220.10, AND 220.20.
13. STEEL PIPE SHALL BE ALUM/N/ZED, OR GAL VAN/ZED W/TH ASPHAL T TREATMENT 1, 2, OR 5 INS/DE
AND OUTS/DE.
14. ALL DRAINAGE STRUCTURES SUCH AS CATCH BASINS AND MANHOLES SHALL BE FITTED W/TH
DUCT/LE IRON, BOL T-LOCK/NG LIDS PER THE CITY STANDARD PLAN 204.10, 204.20, 204.30, AND
204.50. STRUCTURES SHALL HAVE.
RECTANGULAR OR ROUND, SOLID LIDS WHEN NOT COLLECT/NG RUNOFF, AND OUTS/DE OF THE
ROADWA Y.
ROUND, SOLID LIDS WHEN NOT COLLECT/NG RUNOFF, AND LOCATED WITHIN THE ROADWAY, BUT
OUTSIDE OF THE CURB/GUTTER LINE.
ROUND, SOLID LIDS DISPLAYING THE CITY LOGO WHEN WITH/N THE PUBLIC RIGHT-OF-WAY OR /N
AN EASEMENT TO THE CITY. PRIVATE STRUCTURE LIDS OUTSIDE PUBLIC RIGHT-OF-WAY AND
EASEMENTS TO THE CITY SHALL NOT DISPLA Y THE CITY LOGO.
15. BUILDINGS AND OTHER STRUCTURES SHALL BE PLACED IN ACCORDANCE WITH TABLE 4.1
EASEMENT WIDTHS AND BUILDING SETBACKS LINES OF THE RENTON SWDM.
16. LIDS OF MANHOLES/CATCH BASINS WITHIN PUBLIC RIGHT-OF-WAY SHALL NOT BE ADJUSTED TO
FINAL GRADE UNTIL AFTER PAVING. ALL MANHOLE/CATCHBASIN RIMS SHALL BE ADJUSTED TO BE
FLUSH WITH FINAL FINISHED GRADES, UNLESS OTHERWISE SHOWN.
Orel
REVISION
25. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY DOES NOT RELIEVE THE
APPLICANT OF THE CONTINUING LEGAL OBLIGATION AND/OR LIABILITY CONNECTED WITH
STORMWATER DISPOSAL. THE CITY DOES NOT ACCEPT ANY OBLIGATION FOR THE PROPER
FUNCTIONING AND MAINTENANCE OF THE STORM SYSTEM PROVIDED DURING CONSTRUCTION.
26. ADEQUATE SAFEGUARDS, SAFETY DEVICES, PRO TECT/VE EQUIPMENT, FLAGGERS, AND ANY OTHER
ACTIONS NEEDED TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE PUBL/C, AND TO PROTECT
PROPERTY /N CONNECTION WITH THE PERFORMANCE OF WORK SHALL BE PROVIDED. ANY WORK
W/THIN THE TRA VELED
RIGHT -OF -WA Y THA T MA Y INTERRUPT NORMAL TRAFFIC FL OW SHALL REQUIRE A TRAFFIC CONTROL
PLAN APPROVED BY THE CITY. ALL SECTIONS OF THE WSDOT STANDARD SPEC/F/CAT/ONS 1-10
TEMPORARY TRAFFIC CONTROL SHALL APPLY
27. PROJECTS LOCATED WITHIN THE CITY'S AQUIFER PROTECTION AREA (A PA) SHALL COMPL Y WITH
SPECIAL REQUIREMENT f6 OF THE RENTON SWDM AND AQUIFER PROTECTION REGULA TIONS (RUC
4-3--050)
28. PLACEMENT OF SURFACE APPURTENANCES (CATCH BASIN/MANHOLE LIDS, CLEANOUTS, INLETS,
ETC.) IN THE STREET TRAVEL LANE WHEEL PATH, INTERSECTIONS OF STREET TRAVEL LANES,
BIKE LANES, SIDEWALKS, AND CROSSWALKS SHALL BE A VOIDED WHENEVER POSSIBLE. ANY
SURFACE APPURTENANCE PLACED IN A SIDEWALK OR CROSSWALK SHALL SE FITTED WITH A
NON -SLIP OR NON-SKID LID PER ADA REQUIREMENTS.
29. CLEARL Y LABEL PUBLIC AND PRIVATE SYSTEMS ON THE PLANS. PRIVATE SYSTEMS SHALL BE
MAINTAINED BY THE APPLICANT
30. MIN/MUM COVER OVER STORM DRAINAGE PIPE SHALL CONFORM TO TABLE 4.2.1.A2 OF THE
RENTON SWDM.
31. CONSTRUCTED PERMEABLE PAVEMENT SHALL BE PERMEABLE ENOUGH TO ABSORB WATER AT A
MIN/MUM RA TE OF 20 INCHES PER HOUR /MMEDIA TEL Y AFTER THE PA VEMENT SURFACE HAS BEEN
WETTED CON TINUOUSL Y FOR AT LEAST 10 MINUTES. COMPLIANCE WITH THIS MIN/MUM RATE SHALL
BE CHECKED PRIOR TO CONSTRUCTION APPROVAL OF THE PA VEMENT. COMPLIANCE MA Y BE
CHECKED USING A SIMPLE BUCKET TEST IN WHICH 5 GALLONS OF WATER IS POURED ONTO THE
PA VEMENT SURFACE ALL A T ONCE. IF ONL Y A MINOR AMOUNT OF WA TER PONDS OR RUNS OFF
THE SURFACE, THEN THE PA VEMENT IS CONSIDERED TO MEET THE MIN/MUM RA TE OF
ABSORPTION. AT LEAST ONE TEST SHALL BE CONDUCTED PER 1, 000 SQUARE FEET OF
PERMEABLE PAVEMENT. IF THIS TEST IS NOT CONCLUSIVE, THEN ANOTHER TEST PER ASTM C1701
SHALL BE CONDUCTED. FOR LARGE AREAS (E. G., PARKING AREAS), TESTING OBSERVA TION MA Y
BE ACCOMPL/SHED WHILE WALKING BEHIND A SL0K Y MOVING WATER TRUCK DISCHARGING WATER
A T A RA TE SIMILAR TO THE BUCKET TEST. PERMEABLE PA VERS SHALL BE TESTED USING ASTM
C1781.
i 17TIV01.11
SURVEYED:
ROSERT WEST
DESIGNED:
GINA BROOKS
DRAWN:
DA VV VAUGHN
CHECKED:
GINA BROOKS
APPROVED:
GINA BROOKS
SCALE:
1 "=10,
ONE INCH
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
VERi1CAL NAVD 1988
HORIZONTAL- NAD 1983/1991
DATU M
2/3/23 (DESIGN ONL`r)
R-41 1111
CITY OF
RENTON
Planning/Building/Public Works Dept.
CIVIL ENGINEERING
LANDSCAPE ARCHITECTURE
PLANNING
"11111I c4w �O DESIGN SURVEYING
CORE JOB NO 18227
12100 NE 195th St, Suite 300 Bothell, Washington 98017 425.885.7877
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
KIDDIE RESEARCH DA YCARE CENTER
3123 NE SUNSET BL VD
RENTON, WA 98056
STORM DRAINAGE NOTES
DATE:
MAR. 2020
nELDBOOK:
PAGE:
DRAWING NO:
04.31
SHEEP: 11 OF: 21
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