HomeMy WebLinkAboutR-436302NW 1/4 OF NW 1/4 & THE NE 1/4 OF NW 1/4 SEC 9, TWN 23 N, RGE05E,W.M.
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CITY OF RENTON SURFACE WATER DRAINAGE NOTES:
co FOR COR STD 267.00 & 267.10
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1 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A
PRE -CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY
p REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR.
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~ 2. THE APPLICANT SHALL BE RESPONSIBLE FOR SECURING ALL NECESSARY CITY, STATE,
AND FEDERAL PERMITS PRIOR TO CONSTRUCTION.
3. ALL STORM DRAINAGE IMPROVEMENTS SHALL BE DESIGNED AND CONSTRUCTED IN
ACCORDANCE WITH THE LATEST EDITION OF THE CITY OF RENTON SURFACE WATER
W DESIGN MANUAL (RENTON SWDM), RENTON MUNICIPAL CODE (RMC), AND THE STANDARD
SPECIFICATIONS FOR ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION PREPARED BY
WSDOT AND THE AMERICAN PUBLIC WORKS ASSOCIATION (APWA). IT SHALL BE THE SOLE
0 RESPONSIBILITY OF THE APPLICANT TO CORRECT ANY ERROR, OMISSION OR VARIATION
= FROM THE ABOVE REQUIREMENTS FOUND IN THE PLANS. ALL CORRECTIONS SHALL BE AT
>z NO ADDITIONAL COST TO THE CITY.
O 4. APPROVAL OF THE ROAD, GRADING, PARKING, BUILDING, AND DRAINAGE PLAN DOES NOT
CONSTITUTE AS APPROVAL OF ANY OTHER CONSTRUCTION (E.G. WATER, SEWER, GAS,
Q ELECTRICAL. ETC.). PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING
Ir WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL BY THE CITY PRIOR TO
W CONSTRUCTION. THE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED
J ACCORDING TO THE APPROVED PLANS. ANY DEVIATION FROM THE APPROVED PLANS WILL
0 REQUIRE COORDINATION FOLLOWED BY WRITTEN APPROVAL FROM THE CITY.
0
5. A COPY OF THE APPROVED PLANS SHALL BE ON THE JOB SITE WHENEVER CONSTRUCTION
IS IN PROGRESS.
6. THE LOCATIONS OF ALL EXISTING UTILITIES SHOWN HEREON HAVE BEEN ESTABLISHED BY
FIELD SURVEY OR OBTAINED FROM AVAILABLE RECORDS AND SHALL THEREFORE BE
CONSIDERED APPROXIMATE ONLY AND NOT NECESSARILY COMPLETE. IT IS THE SOLE
RESPONSIBILITY OF THE APPLICANT AND THE APPLICANT'S CONTRACTOR TO
INDEPENDENTLY VERIFY THE ACCURACY OF ALL UTILITY LOCATIONS SHOWN, AND TO
FURTHER DISCOVER AND AVOID ANY OTHER UTILITIES NOT SHOWN HEREON THAT MAY BE
AFFECTED BY THE IMPLEMENTATION OF THIS PLAN. THE APPLICANT SHALL RECORD ON
THE AS -BUILT DRAWINGS ALL UNDOCUMENTED UTILITIES DISCOVERED AND ANY CHANGES
TO THE APPROVED PLANS. THE APPLICANT SHALL IMMEDIATELY NOTIFY THE ENGINEER OF
RECORD IF A CONFLICT EXISTS.
7. VERTICAL DATUM SHALL BE NAVD 88 AND HORIZONTAL DATUM SHALL BE NAD 83 (WA
STATE PLANE, NORTH), UNLESS OTHERWISE APPROVED BY THE CITY. REFERENCE
BENCHMARK, DATUM, AND ELEVATIONS SHALL BE NOTED ON THE PLANS.
8. ALL UTILITY TRENCH BACKFILL AND ROADWAY SUBGRADE SHALL BE COMPACTED TO 95%
MAXIMUM DRY DENSITY PER SECTION 2-03.3(14)D - COMPACTION AND MOISTURE CONTROL
TESTS OF THE WSDOT STANDARD SPECIFICATIONS. IN PERMEABLE PAVEMENT AND OTHER
INFILTRATION AREAS, ALL TRENCH BACKFILL SHALL BE FIRM AND UNYIELDING BUT IN NO
CASE SHALL BE COMPACTED TO MORE THAN 92% OF MAXIMUM DRY DENSITY.
9. OPEN CUTTING OF EXISTING ROADWAYS FOR STORM DRAINAGE WORK IS NOT ALLOWED
UNLESS SPECIFICALLY APPROVED BY THE CITY AND NOTED ON THESE APPROVED PLANS.
ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH THE CITY TRENCH
RESTORATION STANDARDS.
10. ALL PIPE AND STRUCTURES SHALL BE STAKED FOR SURVEY LINE AND GRADE PRIOR TO
THE START OF CONSTRUCTION. WHERE SHOWN ON THE PLANS OR WHERE DIRECTED BY
THE CITY, THE EXISTING MANHOLES, CATCH BASINS, OR INLETS SHALL BE ADJUSTED TO
THE GRADE AS STAKED.
11. ALL FLOW CONTROL FACILITIES SHALL BE INSTALLED AND IN OPERATION PRIOR TO, OR IN
CONJUNCTION WITH, ANY CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED BY
THE CITY.
12. 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 AND BACKFILL SHALL BE AS SHOWN ON THE CITY
STANDARD PLAN 220.00, 220.10, AND 220.20.
13. STEEL PIPE SHALL BE ALUMINIZED, OR GALVANIZED WITH ASPHALT TREATMENT 1, 2, OR 5
INSIDE AND OUTSIDE.
14. ALL DRAINAGE STRUCTURES SUCH AS CATCH BASINS AND MANHOLES SHALL BE FITTED
WITH DUCTILE IRON, BOLT -LOCKING LIDS PER THE CITY STANDARD PLAN 204.10, 204.20,
204.30, 204.40, AND 204.50. STRUCTURES SHALL HAVE:
• RECTANGULAR OR ROUND, SOLID LIDS WHEN NOT COLLECTING RUNOFF, AND OUTSIDE
OF THE ROADWAY.
• ROUND, SOLID LIDS WHEN NOT COLLECTING RUNOFF, AND LOCATED WITHIN THE
ROADWAY, BUT OUTSIDE OF THE CURB/GUTTER LINE.
• ROUND, SOLID LIDS DISPLAYING THE CITY LOGO WHEN WITHIN THE PUBLIC
RIGHT-OF-WAY OR IN AN EASEMENT TO THE CITY. PRIVATE STRUCTURE LIDS OUTSIDE
PUBLIC RIGHT-OF-WAY AND EASEMENTS TO THE CITY SHALL NOT DISPLAY 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/CATCH BASIN RIMS SHALL
BE ADJUSTED TO BE FLUSH WITH FINAL FINISHED GRADES, UNLESS OTHERWISE SHOWN.
17. ALL DRIVEWAY CULVERTS LOCATED WITHIN CITY 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.
18. ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE
OF SOUND QUARRY ROCK PLACED TO A MINIMUM DEPTH OF ONE (1) FOOT AND SHALL
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.
19. FOOTING DRAINAGE SYSTEMS AND ROOF DOWNSPOUT SYSTEMS SHALL NOT BE
INTERCONNECTED AND SHALL SEPARATELY CONVEY COLLECTED FLOWS TO THE
CONVEYANCE SYSTEM OR FLOW CONTROL FACILITY ON THE SITE, UNLESS APPROVED BY
THE CITY. FOOTING DRAINS SHALL NOT BE CONNECTED TO ON -SITE BMPS.
20. THE END OF EACH STORM DRAIN STUB SHALL BE CAPPED. A CLEANOUT TOPPED WITH A
BOLT -LOCKING LID MARKED "STORM" OR "DRAIN" SHALL BE LOCATED AT THE PROPERTY
LINE OR AT THE POINT OF CONNECTION OF A PRIVATE STORM DRAINAGE CONVEYANCE
SYSTEM PER THE CITY STANDARD PLAN 227.00.
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 CONSTRUCTION.
22. ALL NEWLY -INSTALLED AND NEWLY -REHABILITATED (PUBLIC AND PRIVATE) STORM
CONVEYANCE SYSTEMS SHALL BE INSPECTED BY MEANS OF REMOTE CCTV ACCORDING
TO THE CITY STANDARD PLAN 266.00. CCTV INSPECTIONS AND REPORTS SHALL BE
SUBMITTED TO THE CITY PRIOR TO RECEIVING APPROVAL TO INSTALL PROJECT CURBS,
GUTTERS AND/OR PAVEMENT.
23. ALL STORM SYSTEMS AND CONNECTIONS TO EXISTING MAINS SHALL BE TESTED IN
ACCORDANCE WITH SECTION 7-04.3(1) OF THE WSDOT STANDARD SPECIFICATIONS AND IN
THE PRESENCE OF A REPRESENTATIVE OF THE CITY. STORM DRAIN STUBS SHALL BE
TESTED FOR ACCEPTANCE AT THE SAME TIME THE MAIN STORM IS TESTED.
24. FOR ALL DISTURBED PERVIOUS AREAS (COMPACTED, GRADED, LANDSCAPED, ETC.) OF
THE DEVELOPMENT SITE, TO MAINTAIN THE MOISTURE CAPACITY OF THE SOIL EITHER
STOCKPILE AND REDISTRIBUTE THE EXISTING DUFF LAYER AND NATIVE TOPSOIL OR
AMEND THE SOIL WITH COMPOST IN ACCORDANCE WITH STANDARD PLAN 264.00.
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, PROTECTIVE EQUIPMENT, FLAGGERS, AND
ANY OTHER ACTIONS NEEDED TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE
PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK
SHALL BE PROVIDED. ANY WORK WITHIN THE TRAVELED RIGHT-OF-WAY THAT MAY
INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE A TRAFFIC CONTROL PLAN
APPROVED BY THE CITY. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1-10
TEMPORARY TRAFFIC CONTROL SHALL APPLY.
• Call 811
• • two business days
before you dig
2 CIVIL CONSTRUCTION PERMIT - 3RD SUBMITTAL
1 CIVIL CONSTRUCTION PERMIT - 2ND SUBMITTAL
0 CIVIL CONSTRUCTION PERMIT
NO. REVISION
27. PROJECTS LOCATED WITHIN THE CITY'S AQUIFER PROTECTION AREA (APA) SHALL COMPLY
WITH SPECIAL REQUIREMENT #6 OF THE RENTON SWDM AND AQUIFER PROTECTION
REGULATIONS (RMC 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 AVOIDED
WHENEVER POSSIBLE. ANY SURFACE APPURTENANCE PLACED IN A SIDEWALK OR
CROSSWALK SHALL BE FITTED WITH A NON -SLIP OR NON-SKID LID PER ADA
REQUIREMENTS.
29. CLEARLY LABEL PUBLIC AND PRIVATE SYSTEMS ON THE PLANS. PRIVATE SYSTEMS SHALL
BE MAINTAINED BY THE APPLICANT.
30. MINIMUM 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 MINIMUM RATE OF 20 INCHES PER HOUR IMMEDIATELY AFTER THE PAVEMENT
SURFACE HAS BEEN WETTED CONTINUOUSLY FOR AT LEAST 10 MINUTES. COMPLIANCE
WITH THIS MINIMUM RATE SHALL BE CHECKED PRIOR TO CONSTRUCTION APPROVAL OF
THE PAVEMENT. COMPLIANCE MAY BE CHECKED USING A SIMPLE BUCKET TEST IN WHICH 5
GALLONS OF WATER IS POURED ONTO THE PAVEMENT SURFACE ALL AT ONCE. IF ONLY A
MINOR AMOUNT OF WATER PONDS OR RUNS OFF THE SURFACE, THEN THE PAVEMENT IS
CONSIDERED TO MEET THE MINIMUM RATE 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 OBSERVATION MAY BE ACCOMPLISHED WHILE
WALKING BEHIND A SLOWLY MOVING WATER TRUCK DISCHARGING WATER AT A RATE
SIMILAR TO THE BUCKET TEST. PERMEABLE PAVERS SHALL BE TESTED USING ASTM C1781.
CONSTRUCTION SEQUENCE:
1. PRE -CONSTRUCTION MEETING.
2. POST SIGN WITH NAME AND PHONE NUMBER OF CSWPP/ESC SUPERVISOR (MAY BE
CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION).
3. FLAG OR FENCE CLEARING LIMITS.
4. INSTALL CATCH BASIN PROTECTION AND STORMWATER BMP AREA PROTECTION AS REQUIRED.
5. GRADE AND INSTALL CONSTRUCTION ENTRANCE(S).
6. INSTALL PERIMETER PROTECTION (SILT FENCE, BRUSH BARRIER, ETC.).
7. CONSTRUCT SEDIMENT PONDS AND TRAPS.
8. GRADE AND STABILIZE CONSTRUCTION ROADS.
9. CONSTRUCT SURFACE WATER CONTROLS (INTERCEPTOR DIKES, PIPE SLOPE DRAINS, ETC.)
SIMULTANEOUSLY WITH CLEARING AND GRADING FOR PROJECT DEVELOPMENT. CONSTRUCT
SWPPS CONTROLS IN ANTICIPATION OF SCHEDULED CONSTRUCTION ACTIVITY (E.G.,
CONCRETE -RELATED PH MEASURES FOR UTILITY, VAULT OR ROADWAY CONSTRUCTION).
10. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH APPENDIX D OF THE CITY OF
RENTON SURFACE WATER DESIGN MANUAL AND MANUFACTURER'S RECOMMENDATIONS.
11. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE
CONDITIONS CHANGE THE EROSION AND SEDIMENT CONTROL AND POLLUTION PREVENTION IS
ALWAYS IN ACCORDANCE WITH THE CITY'S EROSION AND SEDIMENT CONTROL STANDARDS.
12. COVER ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN SEVEN DAYS DURING THE DRY
SEASON 0 TWO DAYS DURING THE WET SEASON WITH STRAW, WOOD FIBER MULCH,
COMPOST, OR EQUIVALENT.
13. STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN DAYS.
14. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS.
15. UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST BE STABILIZED AND BMPS
REMOVED IF APPROPRIATE.
16. APPLY DUST CONTROL (BMP C140), SAWCUTTING AND SURFACING POLLUTION PREVENTION
(BMP 152).
17. COMPLETE MASS GRADING.
SURVEYED:
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DESIGNED:
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DRAWN: RAG
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CITY OF RENTON WASTEWATER STANDARD DETAILS:
FOR COR STD 413
1. ALL WORK AND MATERIAL SHALL BE IN CONFORMANCE WITH THE STANDARDS AND
SPECIFICATION OF THE CITY OF RENTON PUBLIC WORKS DEPARTMENT AND THE LATEST
EDITION OF THE WSDOT/APWA STANDARDS AND SPECIFICATIONS,AS APPROVED AND
MODIFIED BY THE CITY OF RENTON STANDARD PLANS&SPECIFICATIONS.A SET OF
APPROVED PLANS SHALL BE KEPT ON SITE AT ALL TIMES DURING CONSTRUCTION.
2. DATUM FOR VERTICAL CONTROL SHALL BE NORTH AMERICAN VERTICAL DATUM
1988.HORIZONTAL CONTROL SHALL BE NORTH AMERICAN DATUM 1983/1991 UNLESS
OTHERWISE APPROVED BY THE CITY.BENCHMARKS AND MONUMENTS SHALL BE
REFERENCED ON THE APPROVED PLANS.
3. A PRE -CONSTRUCTION CONFERENCE AND A 24-HOUR NOTICE SHALL BE REQUIRED PRIOR
TO STARTING NEW CONSTRUCTION. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO
SECURE ALL NECESSARY PERMITS, INCLUDING STREET USE PERMITS,PRIOR TO STARTING
CONSTRUCTION. INSPECTION WILL BE ACCOMPLISHED BY A REPRESENTATIVE OF THE
CITY. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE PUBLIC WORKS
INSPECTOR 24 HOURS IN ADVANCE OF BACKFILLING ALL CONSTRUCTION.
4. THE HOURS OF WORK IN THE STREET RIGHT-OF-WAY SHALL BE PER CITY SPECIFICATIONS
ON WEEKDAYS UNLESS OTHERWISE APPROVED IN WRITING BY THE PUBLIC WORKS
DEPARTMENT.AN APPROVED TRAFFIC CONTROL PLAN MUST BE OBTAINED PRIOR TO
BEGINNING ANY WORK WITHIN THE PUBLIC RIGHT-OF-WAY.
5. CONTRACTOR IS SOLELY RESPONSIBLE FOR THE MEANS,METHODS AND SEQUENCES OF
CONSTRUCTION AND FOR THE SAFETY OF WORKERS AND OTHERS ON THE
CONSTRUCTION SITE IN ACCORDANCE WITH LOCAL, STATE AND FEDERAL REQUIREMENTS.
6. ALL LOCATIONS OF EXISTING UTILITIES SHOWN ARE APPROXIMATE AND IT SHALL BE THE
CONTRACTOR'S RESPONSIBILITY TO VERIFY THE TRUE AND CORRECT LOCATION SO AS TO
AVOID DAMAGE OR DISTURBANCE. THE CONTRACTOR SHALL COMPLY WITH THE
REQUIREMENTS OF RCW 19.122. A DIG TICKET SHALL BE OBTAINED A MINIMUM OF TWO
BUSINESS DAYS PRIOR TO STARTING ANY EXCAVATION.THE CONTRACTOR SHALL HAVE A
COPY OF THE DIG TICKET ON SITE AT ALL TIMES.
7. BACKFILL SHALL BE PLACED EQUALLY ON BOTH SIDES OF THE PIPE IN LAYERS WITH A
LOOSE AVERAGE DEPTH OF 12-INCHES,MAXIMUM DEPTH 18-INCHES,THOR000HLY
COMPACTING EACH LAYER TO 95 PERCENT OF MAXIMUM DENSITY.THESE COMPACTED
LAYERS MUST EXTEND FOR ONE PIPE DIAMETER ON EACH SIDE OF THE PIPE OR TO THE
SIDE OF THE TRENCH. MATERIALS TO COMPLETE THE FILL OVER THE PIPE SHALL BE
EQUIVALENT TO BANK RUN GRAVEL FOR TRENCH BACKFILL(9-03.19).
8. SANITARY SEWER PIPE SHALL BE POLYVINYL CHLORIDE(PVC)RUBBER-GASKETED ASTM D
3034,SDR 35, C900/C905 OR DUCTILE IRON CLASS 50,UNLESS OTHERWISE APPROVED BY
THE CITY.
9. SANITARY SEWER PIPES SHALL NOT BE LOCATED UNDER ANY STRUCTURE
(WALL,BUILDING FOUNDATION,ETC.) UNLESS APPROVED BY THE CITY.IF A SANITARY
SEWER IS TO BE LOCATED UNDER ANY STRUCTURE(WALL, BUILDING FOUNDATION,ETC.),IT
SHALL BE DESIGNED BY A PROFESSIONAL ENGINEER LICENSED IN THE STATE OF
WASHINGTON IN ACCORDANCE WITH STANDARD DETAIL 412.
10. OPEN -CUT ROAD CROSSINGS FOR UTILITY TRENCHES ON EXISTING TRAVELED ROADWAYS
SHALL BE BACKFILLED WITH CRUSHED SURFACING AGGREGATE(WSDOT SPECIFICATION
9-03.9(3)AND MECHANICALLY COMPACTED UNLESS OTHERWISE APPROVED BY THE CITY.
11. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION
IN ACCORDANCE WITH THE STANDARDS AND SPECIFICATION OF THE CITY AND THE
LATEST EDITION OF THE WSDOT/APWA STANDARDS AND SPECIFICATION AS APPROVED
AND MODIFIED BY THE CITY IN THE RENTON STANDARD PLANS& SPEC IFICATIONS.THIS
SHALL INCLUDE NECESSARY LEVELING OF THE TRENCH BOTTOM OR THE TOP OF THE
FOUNDATION MATERIAL TO A UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE PIPE
WILL BE SUPPORTED ON A UNIFORMLY DENSE,UNYIELDING BASE.PIPE BEDDING SHALL BE
IN ACCORDANCE WITH STANDARD PLAN 405.
12. ALL DISTURBED AREAS SHALL BE SEEDED AND MULCHED OR OTHERWISE STABILIZED TO
THE SATISFACTION OF THE CITY FOR THE PREVENTION OF ON -SITE EROSION BOTH
DURING CONSTRUCTION AND AFTER THE COMPLETION OF CONSTRUCTION IN
ACCORDANCE WITH THE CURRENT SURFACE WATER DESIGN MANUAL.
13. THE CONTRACTOR SHALL PROVIDE THE CITY OF RENTON WITH A RECORD DRAWING OF
THE SANITARY SEWER SYSTEM WHICH HAS BEEN STAMPED AND SIGNED BY A LICENSED
PROFESSIONAL ENGINEER OR LICENSED PROFESSIONAL SURVEYOR.
1601 5th Avenue, Suite 1600
Seattle, WA 98101
206.622.5822
www.knff.com
OA,DHGRIZWH 1983%'99' CITY OF
R-.d]W
RENTON
ONE INCH DATUM •
AT FULL SCALE Planning/Building/Public Works Dept.
IF NOT ONE INCH
SCALE ACCORDINGLY
R-436302
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
FHBray
VELOPMENT ENGINEERING `"
12/31 /2025 %j I
SOLERA TOWNHOMES
2842 NE SUNSET BLVD
RENTON, WA 98056
GENERAL NOTES
DATE:
05/30/202
FIELDBOOK:
PAGE:
DRAWING NO:
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