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1 12
WATER UTILITY NOTES AND SPECIFICATIONS
1. ALL WORK MATERIAL SHALL BE IN CONFORMANCE WITH THE STANDARDS AND SPECIFICATIONS OF THE
CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT AND THE LATEST EDITION OF THE
WSDOT/APWA STANDARDS AND SPECIFICATIONS, AS APPROVED AND MODIFIED BY THE CITY OF RENTON
IN THE RENTON STANDARD PLANS & SPECIFICATIONS. A SET OF APPROVED PLANS SHALL BE KEPT ON
A SITE AT ALL TIMES DURING CONSTRUCTION.
2. THE HOURS OF WORK IN THE STREET RIGHT OF WAY SHALL BE LIMITED TO 8:30 AM TO 3:30 PM ON
WEEKDAYS UNLESS OTHERWISE APPROVED IN WRITING BY THE PUBLIC WORKS DEPARTMENT AT (425)
430-7301. THE POLICE DEPARTMENT, FIRE DEPARTMENT, AND 911 SHALL BE NOTIFIED 24
HOURS IN ADVANCE OF ANY WORK IN THE RIGHT OF WAY.
3. 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. FOR UTILITY LOCATES CALL 48-HOUR LOCATORS 800-424-5555.
4. AN APPROVED TRAFFIC CONTROL PLAN IS REQUIRED TO BE SUBMITTED AT THE PRE -CONSTRUCTION
MEETING.
5. DATUM FOR VERTICAL CONTROL SHALL BE NORTH AMERICAN VERTICAL DATUM 1988 METERS, AND FOR
HORIZONTAL CONTROL SHALL BE NORTH AMERICAN DATUM 1983/1991 METERS UNLESS OTHERWISE
B APPROVED BY THE CITY OF RENTON PUBLIC WORKS DEPARTMENT. REFERENCE BENCHMARK AND
ELEVATIONS ARE NOTED ON THE PLANS.
6. ALL WATER MAIN PIPE IS TO BE CEMENT LINED DUCTILE IRON PIPE CONFORMING TO AWWA C110 AND
C111 OR LATEST REVISION, THICKNESS CLASS 52. CEMENT MORTAR LINING AND SEAL COATING SHALL
CONFORM TO AWWA C104 OR LATEST REVISION. PIPE JOINTS TO BE PUSH -ON OR MECHANICAL JOINT.
BEDDING TO BE CLASS C. ALL DUCTILE IRON PIPE AND FITTINGS SHALL BE POLYETHYLENE WRAPPED PER
ANSI/AWWA C105/A21.5-93 STANDARDS.
7. CAST IRON AND DUCTILE IRON FITTINGS SHALL BE CEMENT LINED, PRESSURE RATED AS NOTED ON
PLANS, AND IN ACCORDANCE WITH ANSI/AWWA C110/A21.10-87. CEMENT UNING SHALL BE IN
ACCORDANCE WITH ANSI/AWWA C104/421/4-90. IF FITTINGS ARE 3 TO 12 INCHES IN DIAMETER AND
HAVE MECHANICAL JOINTS, THE FITTINGS SHALL IN ACCORDANCE WITH EITHER ANSI/AWWA
C110 -A21.10-87 OR ANSI/AWWA C153/A21.53-94. THREE (3) INCH TO 12 INCH DIAMETER FITTINGS,
WHICH HAVE MECHANICAL JOINT AND/OR FLANGED JOINTS, SHALL BE IN ACCORDANCE WITH ANSI/AWWA
C110/A21.10.87 OR A COMBINATION OF ANSI/AWWA C110/A21.10.87 AND ANSI/AWWA C153/A21.53-94
C SUCH THAT THE PORTION OF THE FITTING WITH A MECHANICAL JOINT(S) MAY BE WITH ANSI/AWWA
C153/A21.53-94 AND THAT PORTION OF THE FITTING WITH FLANGED JOINT(S) SHALL BE IN
ACCORDANCE WITH AWWA C110/A21.10-87. ACCEPTANCE TESTING IN ACCORDANCE WITH
SECTION 53.53 OF ANSI/AWWA SECTION 10-4.3 OF ANSI/AWWA C110/A21.10-87 SHALL BE OBTAINED
BY THE CONTRACTOR AND TRANSMITTED TO THE OWNER.
8. GATE VALVES SHALL BE IRON BODY, BRONZED -MOUNTED, DOUBLE DISC WITH BRONZE WEDGING DEVICE
AND 0 -RING STUFFING BOX (AWWA C500) OR OF RESILIENT SEATED TYPE (AWWA C509) VALVES SHALL
BE DESIGNED FOR A MINIMUM WATER OPERATING PRESSURE OF 200 PSI. GATE VALVES SHALL BE
CLOW LIST 14, MUELLER COMPANY NO. A2380 OR M & H.
9. FIRE HYDRANTS SHALL BE COREY TYPE (OPENING WITH THE PRESSURE) OR COMPRESSION TYPE
(OPENING AGAINST PRESSURE) CONFORMING TO AWWA C-502-85 WITH A 6 INCH MECHANICAL JOINT
INLET AND A MAIN VALVE OPENING (M.V.O.) OF 5-1/4 INCH, TWO 2-1/2 INCH HOSE NOZZLES WITH
NATIONAL STANDARD THREADS 7-1/2 THREADS PER INCH AND ONE 4 INCH PUMPER NOZZLE WITH THE
D NEW SEATTLE PATTERN 6 THREADS PER INCH, 60 DEGREES V. THREADS: OUTSIDE DIAMETER OF MALE
THREAD 4.875 AND ROOT DIAMETER 4.6263. HYDRANTS SHALL HAVE A 1-1/4 INCH PENTAGON
OPERATING NUT OPENED BY TURNING COUNTER CLOCKWISE (LEFT).
10. THE TWO 2-1/2 INCH HOSE NOZZLES SHALL BE FITTED NTH CAST IRON THREADED CAPS WITH
OPERATING NUT OF THE SAME DESIGN AND PROPOR11ONS AS THE HYDRANT STEM NUT. CAPS SHALL
BE FITTED WITH SUITABLE NEOPRENE GASKETS FOR POSITIVE WATER TIGHTNESS UNDER TEST
PRESSURES.
11. THE 4 INCH PUMPER NOZZLE SHALL BE FITTED WITH A STORZ ADAPTER, 4 INCH SEATTLE THREAD X 5
INCH STORZ. STORZ ADAPTER SHALL BE FORGED AND/OR EXTRUDED 6061-T6 ALUMINUM ALLOY,
HARDCOAT ANODIZED. THREADED END PORTION SHALL HAVE NO LUGS AND TWO SET SCREWS 180
DEGREES APART. STORZ FACE TO BE METAL, NO GASKET TO WEATHER. STORZ CAP TO HAVE
SYNTHETIC MOLDED RUBBER GASKET, AND SHALL BE ATTACHED TO HYDRANT ADAPTER WITH 1/8 INCH,
COATED, STAINLESS STEEL, AIRCRAFT CABLE.
E 12. FIRE HYDRANTS SHALL BE PAINTED WITH TWO COATS OF PAINT. PRESERVATIVE PAINT NUMBER 43655
SAFETY YELLOW OR APPROVED EQUAL.
13. PUMPER CONNECTION TO FACE ROADWAY ASSEMBLY.
14. FIRE HYDRANTS SHALL BE INSTALLED PER CITY OF RENTON STANDARD DETAIL FOR FIRE HYDRANTS,
LATEST REVISION.
15. ALL WATERMAINS 10 INCHES AND SMALLER TO MAINTAIN A MINIMUM COVER OF 36 INCHES BELOW FINISH
GRADE. ALL WATERMAIN 12 INCHES AND LARGER SHALL BE AT A MINIMUM OF 48 INCHES BELOW FINISH
GRADE. WHERE UTILITY CONFLICTS OCCUR, WATERMAINS ARE TO BE LOWERED TO CLEAR.
16. ALL WATERMAINS 6 INCHES AND LARGER IN DIAMETER SHALL BE CLEANED WITH PIPE CLEANING PIGS"
PRIOR TO DISINFECTION. THE 'POLY PIGS" SHALL BE GIRARD INDUSTRIES AQUA SWAB -AS OR APPROVED
EQUAL, 2 LB/CU. FT. DENSITY FOAM WITH 90A DUROMETER URETHANE RUBBER COATING ON THE REAR
OF PIG" ONLY.
F 17. PIGS" SHALL BE CYLINDER SHAPED WITH BULLET NOSE OR SQUARE END. THE CONTRACTOR WILL
PERFORM THE CLEANING OPERATION.
18. ALL WATERMAINS AND SERVICES SHALL BE PRESSURE TESTED TO A MINIMUM OF 200 PSI OR 150 PSI
OVER OPERATING PRESSURE, IN ACCORDANCE WITH THE SPECIFICATIONS OF THE CITY OF RENTON AND
THE WASHINGTON STATE HEALTH DEPARTMENT. ALL PRESSURE TESTING SHALL BE DONE IN THE
PRESENCE OF A REPRESENTATIVE OF THE CITY OF RENTON. THE QUANTITY OF WATER LOST FROM THE
MAIN SHALL NOT EXCEED THE NUMBER OF GALLONS PER HOUR AS LISTED IN CITY OF RENTON
.STANDARD PLANS & SPECIFICATIONS 7-11.3(11). THE LOSS IN PRESSURE SHALL NOT EXCEED 5 PSI
DURING THE 2 HOUR TEST PERIOD.
19. ALL WATERMAINS AND SERVICES SHALL BE DISINFECTED BY THE INJECTION OF A 50 PPM (MINIMUM
CONCENTRATION) CHLORINE/WATER SOLUTION. DRY CALCIUM HYPOCHLORITE SHALL NOT BE PLACED IN
THE PIPE AS LAID. CHLORINE SHALL BE METERED/INJECTED IN ACCORDANCE WITH SECTION 711.3(12)E
OR 7-11.3(12)F OF THE STANDARD SPECIFICATIONS REFERENCED ABOVE.
G 20. A PRE -CONSTRUCTION CONFERENCE IS REQUIRED PRIOR TO ANY CONSTRUCTION. A MINIMUM OF FIVE
(5) WORKING DAYS NOTICE IS REQUIRED FOR SCHEDULING.
21. TWENTY-FOUR (24) HOURS NOTICE WILL BE REQUIRED PRIOR TO STARTING NEW CONSTRUCTION.
22. IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO SECURE ALL NECESSARY PERMITS PRIOR TO
STARTING CONSTRUCTION.
23. INSTALLATION OF CORPORATE STOPS, WATER SERVICES, LINES AND METERS SHALL NOT BE DONE UNTIL
ALL SERVICE AGREEMENTS, METER APPLICATIONS, CONSTRUCTION PERMITS, AND PAYMENT OF FEES HAVE
BEEN MADE TO THE CITY OF RENTON.
24. ALL CONNECTION TO EXISTING MAINS IS TO BE ACCOMPLISHED BY THE CITY OF RENTON, EXCEPT WET
TAPS, WHICH MAY BE MADE BY APPROVED WET TAP CONTRACTORS WITH PRIOR APPROVAL FROM THE
PUBLIC WORKS DEPARTMENT. ALL NECESSARY EXCAVATION AND MATERIALS ARE TO BE SUPPLIED BY
THE CONTRACTOR AND BE ON-SITE PRIOR TO CITY NOTIFICATIONS.
25. INSPECTION WILL BE ACCOMPLISHED BY A REPRESENTATIVE OF THE CITY OF RENTON. IT SHALL BE THE
CONTRACTOR'S RESPONSIBILITY TO N01IFY DEVELOPMENT SERVICES TWENTY FOUR (24) HOURS IN
ADVANCE OF BACKFILLING ALL CONSTRUCTION. THE CONTRACTOR, AS WELL AS THE ENGINEERS, SHALL
KEEP AS -BUILT DRAWINGS.
26. CONTRACTOR TO PROVIDE PLUGS AND TEMPORARY BLOW -OFF ASSEMBLIES FOR TESTING AND PURITY
ACCEPTANCE PRIOR TO FINAL TIE-IN.
27. ALL JOINT RESTRAINT SYSTEMS (SHACKLE RODS, NUTS, BOLTS, ETC.) SHALL BE AS MANUFACTURED 6
THE STAR MANUFACTURING COMPANY OF COLUMBUS OHIO, OR EQUAL, APPROVED IN WRITING BY THE
PUBLIC WORKS DEPARTMENT.
28. ASPHALT AND CONCRETE STREET PAVING SHALL BE SAWCUT TO A MINIMUM DEPTH OF TWO (2) INCHES.
OIL MAT STREETS MAY BE SPADE CUT. ALL SURFACE CONCRETE, PAVEMENT, SIDEWALKS, CURB,
GUTTERS, AND DRIVEWAY APPROACHES SHALL BE SAWCUT TO A MINIMUM DEPTH OF TWO (2) INCHES OR
REMOVED TO AN EXISTING EXPANSION JOINT.
29. A TEMPORARY COLD MIX ASPHALT PATCH SHALL BE PLACED ON THE DAY OF INITIAL EXCAVATION WMTh
A PERMANENT, SEALED PATCH TO BE PLACED, TO CITY OF RENTON POLICY, WITHIN 10 DAYS. CALL F")R
SUBGRADE INSPECTION PRIOR TO PLACEMENT OF FINAL PATCH. *
30. FOR CITY PROJECTS SUCH AS TELEMETRY CONDUIT, THE PVC PIPE USED SHALL BE ALL CHEMICAL
PROCESS LINES SHALL BE SCHEDULE 80 PVC PIPE. SCHEDULE 40 IN UNIMPROVED AREAS AND
SCHEDULE 80 PVC PIPE UNDER IMPROVED AREAS.
SANITARY SEWER NOTES AND SPECIFICATIONS
1. ALL WORK AND WORK MATERIAL SHALL BE IN CONFORMANCE WITH THE STANDARDS AND SPECIFICATIONS
OF THE CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT AND THE LATEST EDITION OF
THE WSDOT/APWA STANDARDS AND SPECIFICATIONS, AS APPROVED AND MODIFIED BY THE CITY OF
RENTON IN THE RENTON STANDARD PLANS & SPECIFICATIONS. A SET OF APPROVED PLANS SHALL BE
KEPT ON SITE AT ALL TIMES DURING CONSTRUCTION.
2. THE HOURS OF WORK IN THE STREET RIGHT OF WAY SHALL BE PER CITY SPECIFICATIONS ON WEEKDAYS
UNLESS OTHERWISE APPROVED IN WRITING BY THE PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT. AN
APPROVED TRAFFIC CONTROL PLAN MUST BE OBTAINED PRIOR TO BEGINNING ANY WORK WITHIN PUBLIC
RIGHT OF WAY.
3. ALL LOCATIONS OF EXISTING UTILITIES SHOWN ARE APPROXIMATE AND IT SHALL BE THE CONTRACTORS
RESPONSIBILITY TO VERIFY THE TRUE AND CORRECT LOCATION SO AS TO AVOID DAMAGE OR
DISTURBANCE.
4. 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 PRIOR TO STARTING CONSTRUCTION. (INSPECTION WILL BE ACCOMPLISHED BY A REPRESENTATIVE
OF THE CITY OF RENTON.) IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE PUBLIC
WORKS INSPECTOR 24 HOURS IN ADVANCE OF BACKFILLING ALL CONSTRUCTION.
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.
6. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO OBTAIN STREET USE AND ANY OTHER
RELATED
PERMITS PRIOR TO ANY CONSTRUCTION.
7. PLANS APPROVED BY THE CITY OF RENTON, PUBLIC WORKS DEPARTMENT SHALL TAKE PRECEDENCE OVER
ALL OTHER PLANS.
8. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN
PROGRESS.
9. THE CONTRACTOR SHALL PROVIDE THE CITY OF RENTON WITH AN AS -BUILT DRAWING OF THE SANITARY
SEWER SYSTEM, WHICH HAS BEEN STAMPED AND SIGNED BY A LICENSED PROFESSIONAL ENGINEER OR
LICENSED PROFESSIONAL SURVEYOR.
10. BACKFILL SHALL BE PLACED EQUALLY ON BOTH SIDES OF THE PIPE IN LAYERS WITH A LOOSE AVERAGE
DEPTH OF 6 INCHES, MAXIMUM DEPTH OF 8 INCHES, THOROUGHLY TAMPING 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 PIPE
SHALL BE THE SAME AS DESCRIBED.
11. OPEN CUT ROAD CROSSINGS FOR UTILITY TRENCHES ON EXISTING TRAVELED ROADWAY SHALL BE
BACKFILLED WITH CRUSHED ROCK AND MECHANICALLY COMPACTED UNLESS OTHERWISE APPROVED BY
12. DATUM FOR VERTICAL CONTROL SHALL BE NORTH AMERICAN VERTICAL DATUM 1988 METERS, AND FOR
HORIZONTAL CONTROL SHALL BE NORTH AMERICAN DATUM 1983/1991 METERS UNLESS OTHERWISE
APPROVED BY THE CITY OF RENTON PUBLIC WORKS DEPARTMENT. REFERENCE BENCHMARK AND
ELEVATIONS ARE NOTED ON THE PLANS.
13. ALL DISTURBED AREAS SHALL BE SEEDED AND MULCHED OR OTHERWISE STABILIZED TO THE
SATISFACTION OF THE DEPARTMENT FOR THE PREVENTION OF ON-SITE EROSION AFTER THE COMPLETION
OF CONSTRUCTION.
14. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN
ACCORDANCE WITH THE STANDARDS AND SPECIFICATIONS OF THE CITY OF RENTON
PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT AND THE LATEST EDITION OF THE WSDOT/APWA
STANDARDS AND SPECIFICATIONS, AS APPROVED AND MODIFIED BY THE CITY OF RENTON IN THE RENTON
STANDARD PLANS & SPECIFICATIONS. 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. PIPE BEDDING SHALL BE PEA
GRAVEL 6 INCHES ABOVE AND BELOW THE PIPE.
15. SANITARY SEWER PIPE SHALL BE POLYVINYL CHLORIDE (PVC) RUBBER GASKETED ASTM D 3034, SDR 35,
OR DUCTILE IRON CLASS 50, UNLESS OTHERWISE APPROVED BY THE WASTEWATER UTILITY.
16. IN UNIMPROVED AREAS, MANHOLE TO EXTEND MINIMUM 6 INCHES AND MAXIMUM 12 INCHES ABOVE
FINISHED GRADE OR MUST HAVE MINIMUM 2' DIAMETER CONCRETE RING POURED AT GRADE. IN PAVED
AREA, COVER MUST SLOPE IN ALL DIRECTIONS TO MATCH PAVING.
Plotted: May 29, 2015 - 8:33am ifitzjames 0:\Dci-Civil\2014\1 4012-0023-Renton-Heritage-Apt\dwg\1 4023-PLN.dwg Layout Name: C002
5
SURFACE WATER DRAINAGE NOTES AND SPECIFICATIONS
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A
PRE-CONSTRUC11ON MEETING MUST BE HELD BETWEEN THE CITY OF RENTON PLAN
REVIEW SEC11ON AND THE APPLICANT.
21.4.
2. ALL DESIGN AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE RENTON
MUNICIPAL CODE (RMC), THE LATEST EDITION OF THE STANDARD SPECIFICATIONS FOR 21.5.
ROAD, BRIDGE AND MUNICIPAL CONSTRUCTION PREPARED BY WSDOT AND THE
AMERICAN PUBLIC WORKS ASSOCIATION (APWA), AS AMENDED BY THE CITY OF RENTON
PUBLIC WORKS DFPARTMENT. IT SHALL BE THE SOLE RESPONSIBILITY OF THE 21.6.
APPLICANT AND HE PROFESSIONAL CIVIL ENGINEER TO CORRECT ANY ERROR,
OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THESE PLANS. 21.7.
ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO THE CITY.
3. APPROVAL OF THIS ROAD, GRADING, PARKING, AND DRAINAGE PLAN DOES NOT
CONSTITUTE AN ';PPROVAL OF ANY OTHER CONSTRUCTION (E.G. DOMESTIC WATER
CHAPTER 4 OF THE SURFACE WATER DESIGN MANUAL AND, IF NON-METALLIC, THE
PIPE SHALL BE PLACED IN A TRENCH WITH A TRACING WIRE ABOVE OR OTHER
ACCEPTABLE DETECTION.
PRIVATE DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE SYSTEMS DESIGNED
TO CONVEY FLOWS THROUGH INDIVIDUAL LOTS.
THE APPLICANT/CONTRACTOR IS RESPONSIBLE FOR COORDINATING THE LOCATIONS
OF ALL STUB -OUT CONVEYANCE LINES WITH RESPECT TO OTHER UTILITIES (E.G.
POWER, GAS, TELEPHONE, TELEVISION).
ALL INDIVIDUAL STUB -OUTS SHALL BE PRIVATELY OWNED AND MAINTAINED BY THE
LOT HOME OWNER.
STORM DRAINAGE PIPE SYSTEMS SHALL NOT PENETRATE BUILDING FOUNDATIONS,
EXCEPT FOR SUMP PUMP DISCHARGE LINES USED TO DRAIN CRAWL SPACES,
PROVIDED THE SUMP PUMP SYSTEM INCLUDES BACKFLOW PREVENTION OR A
CHECK VALVE.
CONVEYANCE, SE,-4ER CONVEYANCE, GAS, ELECTRICAL, ETC.). THE SURFACE WATER 22. ALL DISTURBED PERVIOUS AREAS (COMPACTED, GRADED, LANDSCAPED, ETC.) OF THE
DRAINAGE SYSTEM' SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS, DEVELOPMENT SITE MUST DEMONSTRATE ONE OF THE FOLLOWING: THE EXISTING DUFF
WHICH ARE ON FILE WITH THE CITY. ANY DEVIATION FORM THE APPROVED PLANS WILL LAYER SHALL BE STAGED AND REDISTRIBUTED TO MAINTAIN THE MOISTURE CAPACITY
REQUIRE WRITTEN APPROVAL FROM THE CITY OF RENTON PUBLIC WORKS DEPARTMENT, OF THE SOIL, OR; AMENDED SOIL SHALL BE ADDED TO MAINTAIN THE MOISTURE
SURFACE WATER JTILITY SECTION. CAPACITY. .
4. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER 23. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO THE CITY PRIOR TO
CONSTRUCTION IS IN CONSTRUCTION PERMIT ISSUANCE.
PROGRESS.
5. GRADING ACTIVITILS (SITE ALTERATION) ARE LIMITED TO THE HOURS OF 7 A.M. TO 7
P.M. MONDAY THROUGH SATURDAY AND NO WORK ON SUNDAY IS ALLOWED, UNLESS
OTHERWISE APPROVED WITH A WRITTEN DECISION BY THE CITY OF RENTON.
6. IT SHALL BE THE APPLICANT'S/CONTRACTOR'S RESPONSIBILITY TO OBTAIN ALL
CONSTRUCTION EASEMENTS NECESSARY BEFORE INITIATING OFF-SITE WORK.
EASEMENTS REQL;,RE CITY REVIEW AND APPROVAL PRIOR TO CONSTRUCTION.
7. FRANCHISED UTILITIES OR OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE
APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS
THAT MEET ALL REQUIREMENTS OF CHAPTER 4 OF THE SURFACE WATER DESIGN
MANUAL ARE SUBMITTED TO THE CITY OF RENTON.
8. DATUM SHALL BE NAVD 88 UNLESS OTHERWISE APPROVED BY THE CITY OF RENTON.
REFERENCE BENCHMARK AND ELEVATIONS ARE NOTED ON THE PLANS.
9. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER
FACILITIES MUST BE SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL.
10. ALL UTILITY TRENCHES AND ROADWAY SUBGRADE SHALL BE BACKFILLED AND
COMPACTED TO 95 PERCENT DENSITY, STANDARD PROCTOR.
11. OPEN CUTTING Or EXISTING ROADWAYS FOR NON -FRANCHISED UTILITY OR STORM
DRAINAGE WORK IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF
RENTON AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE
RESTORED IN ACCORDANCE WITH THE CITY OF RENTON TRENCH RESTORATION
STANDARDS.
12. ALL SEDIMENTATION/EROSION FACILITIES MUST BE IN OPERATION PRIOR TO CLEARING
AND BUILDING CONSTRUCTION, AND THEY MUST BE SATISFACTORILY MAINTAINED UNTIL
CONSTRUCTION IS COMPLETED AND THE POTENTIAL FOR ON-SITE EROSION HAS
PASSED.
13. 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.
14. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED
FOUNDATION IN A 3CORDANCE 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 SUPPORTLD
ON A UNIFORMLY DENSE, UNYIELDING BASE. ALL PIPE BEDDING SHALL BE APWA
CLASS "C", WITH THE EXCEPTION OF PVC PIPE.
15. STEEL PIPE SHALL BE ALUMINIZED, OR GALVANIZED WITH ASPHALT TREATMENT #1 OR
BETTER INSIDE AND OUTSIDE.
16. 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.
17. BUILDING AND OTHER STRUCTURES SHALL BE PLACED IN ACCORDANCE WITH TABLE 4.1
EASEMENT WIDTHS AND BUILDING SETBACK LINES.
18. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0.10 FEET BELOW PAVEMENT LEVEL.
19. 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 - 209 PASSING.
20. 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.
21. DRAINAGE OUTLETS (STUB -OUTS) SHALL BE PROVIDED FOR EACH INDIVIDUAL LOT,
EXCEPT FOR THOSE LOTS APPROVED FOR INFILTRA11ON BY THE CITY. STUB -OUTS
SHALL CONFORM TO THE FOLLOWING:
21.1. EACH OUTLE1 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, AND ANY OTHER SURFACE OR SUBSURFACE DRAINS
NECESSARY TO RENDER THE LOTS SUITABLE FOR THEIR INTENDED USE. EACH
OUTLET SHALL HAVE FREE-FLOWING, POSITIVE DRAINAGE TO AN APPROVED
STORMWATEF CONVEYANCE SYSTEM OR TO AN APPROVED OUTFALL LOCATION.
21.2. OUTLETS ON EACH LOT SHALL BE LOCATED WITH A FIVE-FOOT HIGH, 21OX4" STAKE
MARKED "STORM" OR "DRAIN". THE STUB -OUT SHALL EXTEND ABOVE SURFACE
LEVEL, BE VISIBLE, AND BE SECURED TO THE STAKE.
21.3. PIPE MATERIAL SHALL CONFORM TO UNDERDRAIN SPECIFICATION DESCRIBED IN
24. ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY OF RENTON DOES
NOT RELIEVE THE OWNER OF THE CONTINUING LEGAL OBLIGATION AND/OR LIABILITY
CONNECTED WITH STORM SURFACE WATER DISPOSITION. FURTHER, THE CITY OF
RENTON DOES NOT ACCEPT ANY OBLIGATION FOR THE PROPER FUNCTIONING AND
MAINTENANCE OF THE SYSTEM PROVIDED DURING CONSTRUCTION.
25. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARD,
SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED
ACTIONS TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO
PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK. ANY WORK
WITHIN THE TRAVELED RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW
SHALL REQUIRE A TRAFFIC CONTROL PLAN APPROVED BY THE PUBLIC WORKS
DEPARTMENT, TRANSPORTATION SYSTEMS DIVISION. ALL SECTIONS OF THE WSDOT
STANDARD SPECIFICATIONS 1-07-23 TRAFFIC CONTROL SHALL APPLY.
26. PROJECT LOCATED WITHIN THE AQUIFER PROTECTION AREA (APA) SHALL COMPLY WITH
SPECIAL REQUIREMENT #6 OF THE SURFACE WATER DESIGN MANUAL AND AQUIFER
PROTECTION REGULATIONS (RMC 4-3-050).
Approved v- :
Approved bv:
Approved by
Approved by:04'
..1
R-382102
("TTY OF RENTON
Date:
.date:
Date: S` -
Date: 4o1231fS
UNDERGROUND SERVICE ALERT
ONE -CALL NUMBER
e
(800)424-5555
CALL TWO BUSINESS DAYS
BEFORE YOU DIG
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