HomeMy WebLinkAboutW-386005SURFACE WATER STANDARD DARD PLAN NOTES
1. THESE NOTES SHALL APPEAR ON PROJECTS FOR THE SURFACE WATER UTILITY.
2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING
MUST BE HELD BETWEEN THE CITY OF RENTON PLAN REVIEW SECTION AND THE APPLICANT.
3. ALL DESIGN AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE RENTON MUNICIPAL CODE
(RMC), THE LATEST EDITION OF THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND
MUNICIPAL CONSTRUCTION PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS
ASSOCIATION (APWA), AS AMENDED BY THE CITY OF RENTON PUBLIC WORKS DEPARTMENT. IT
SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE PROFESSIONAL CIVIL ENGINEER TO
CORRECT ANY ERROR, OMISSION OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THIS
PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST TO THE CITY.
4. APPROVAL OF THIS ROAD, GRADING, PARKING AND DRAINAGE PLAN DOES NOT CONSTITUTE AN
APPROVAL OF ANY OTHER CONSTRUCTION (E.G. DOMESTIC WATER CONVEYANCE, SEWER
CONVEYANCE, GAS, ELECTRICAL. ETC.)THE SURFACE WATER DRAINAGE SYSTEM SHALL BE
CONSTRUCTED ACCORDING TO THE APPROVED PLANS, WHICH ARE ON FILE IN WITH THE CITY. ANY
DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE CITY OF
RENTON PUBLIC WORKS DEPARTMENT, SURFACE WATER UTILITY SECTION.
5. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN
PROGRESS.
6. GRADING ACTI VI TIES (SITE AL TERA TION) 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.
7. IT SHALL BE THE APPLICANT'S/CONTRACTOR'S RESPONSIBILITY TO OBTAIN ALL CONSTRUCTION
EASEMENTS NECESSARY BEFORE INITIATING OFF-SITE WORK. EASEMENTS REQUIRE CITY REVIEW
AND APPROVAL PRIOR TO CONSTRUCTION.
8. 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.
9. DATUM SHALL BE NAVD 88 UNLESS OTHERWISE APPROVED BY THE CITY OF RENTON.
REFERENCE BENCHMARK AND ELEVATIONS ARE NOTED ON THE PLANS.
10. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER FACILITIES MUST
BE SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL.
11. ALL UTILITY TRENCHES AND ROADWAY SUBGRADE SHALL BE BACKFILLED AND COMPACTED TO
95 PERCENT DENSITY, STANDARD PROCTOR.
12. OPEN CUTTING OF 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.
13. ALL SEDIMENTATION/EROSION FACILITIES MUST BE IN OPERATION PRIOR TO CLEARING AND BUILDING
CONSTRUCTION, AND THEY MUST BE SATISFACTORILY MAINTAINED UNTIL CONSTRUCTION 1S
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.
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
THOSE LOTS APPROVED FOR INFILTRATION BY THE CITY. STUB -OUTS SHALL CONFORM TO THE
FOLLOWING:
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, 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
STORMWATER CONVEYANCE SYSTEM OR TO AN APPROVED OUTFALL LOCATION.
B. OUTLETS ON EACH LOT SHALL BE LOCATED WITH A FIVE -FOOT -HIGH, 2" X 4" STAKE MARKED
"STORM" OR "DRAIN". THE STUB -OUT SHALL EXTEND ABOVE SURFACE LEVEL, BE VISIBLE, AND BE
SECURED TO THE STAKE.
C. PIPE MATERIAL SHALL CONFORM TO UNDERDRAIN SPECIFICATIONS DESCRIBED IN 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.
D. PRIVATE DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE SYSTEMS DESIGNED TO CONVEY FLOWS
THROUGH INDIVIDUAL LOTS.
E. THE APPLICANT/CONTRACTOR IS RESPONSIBLE FOR COORDINATING THE LOCATIONS OF ALL STUBOUT
CONVEYANCE LINES WITH RESPECT TO OTHER UTILITIES (E.G. POWER, GAS, TELEPHONE, TELEVISION).
F. ALL INDIVIDUAL STUB -OUTS SHALL BE PRIVATELY OWNED AND MAINTAINED BY THE LOT HOMEOWNER.
G. 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.
23. ALL DISTURBED PERVIOUS AREAS (COMPACTED, GRADED, LANDSCAPED, ETC.) OF THE
DEVELOPMENT SITE MUST DEMONSTRATE ONE OF THE FOLLOWING: THE EXISTING DUFF LAYER
SHALL BE STAGED AND REDISTRIBUTED TO MAINTAIN THE MOISTURE CAPACITY OF THE SOIL, OR,
AMENDED SOIL SHALL BE ADDED TO MAINTAIN THE MOISTURE CAPACITY.
24. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO THE CITY PRIOR TO CONSTRUCTION PERMIT
ISSUANCE.
25. 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.
26. 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 APPROVE BY THE PUBLIC WORKS
DEPARTMENT, TRANSPORTATION SYSTEMS DIVISION. ALL SECTIONS OF THE WSDOT STANDARD
SPECIFICATIONS 1-07-23 TRAFFIC CONTROL SHALL APPLY.
27. PROJECT LOCATED WITHIN THE AQUIFER PROTECTION AREA (APA) SHALL COMPLY WITH SPECIAL
REQUIREMENT 16 OF THE SURFACE WATER DESIGN MANUAL AND AQUIFER PROTECTION
REGULATIONS (RMC 4-3-050).
WATER UTR.ITY (VOTES AND SPECFICA TIONS
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 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
APPROVED BY THE CITY OF RENTON PUBLIC WORKS DEPARTMENT. REFERENCE BENCHMARK AND
ELEVATIONS ARE NOTED ON THE PLANS.
6. ALL WATERMAIN 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 LINING 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 JOINTS AND/OR FLANGED JOINTS, SHALL BE IN ACCORDANCE WfTH
ANSI/AWWA C110/A21.10.87 OR A COMBINATION OF ANSI/AWWA C110/A21.10.87 AND
ANSI/AWWA C153/A21.53-94 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 ANS1/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.0.) 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 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 WITH CAST IRON THREADED CAPS WITH
OPERATING NUT OF THE SAME DESIGN AND PROPORTIONS AS THE HYDRANT STEM NUT. CAPS SHALL
BE FITTED WITH SUITABLE NEOPRENE GASKETS FOR POST TIVE 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.
12. FIRE HYDRANTS SHALL BE PAINTED WITH TWO COATS OF PAINT. PRESERVATIVE PAINT NUMBER 43-
655 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.
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 7-
11.3(12)E OR 7-11.3(12)F OF THE STANDARD SPECIFICATIONS REFERENCED ABOVE.
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 CONTRACTORS RESPONSIBILITY TO NOTIFY 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 BY
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 SAWI✓UT 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 WITH
A PERMANENT, SEALED PATCH TO BE PLACED, TO CITY OF RENTON POLICY, WITHIN 10 DAYS. CALL
FOR 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.
SANNTARY 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 CONTRACTOR' S
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
UTILITY SPECIFICATIONS
12. DATUM FOR VER TI CAL CONTROL SHALL BE NORTH AMERICAN VER TI CAL 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 WfLL 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.
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GRA VEL BASE DEPENDING ON SOIL CONDITIONS
3/8" FULL DEF
EXPANSION JOI
FRDNT VIEW
iOR BOLT
ERN PER
I. PEDESTA
'LATE
10'
SEWER
EASEMENT
/11
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i
STORM LINE
STORM LINESI? , SEWER LINE
6'
TRACT B ACCESS
PRIVATE ROAD SECTION
N TS
2'-7" MAX. MIN. 5'-0"
1'-4" CLEAR WIDTH
PLANTING
STRING WIDTH
0 TO VARIABLE
6"
�-- 1'-6" --1
SIDE VIEW
MOUNT ON PEDES
PROVIDED WITH
N.D.C.B.U.
3/8" FULL DEPTH
EXPANSION JOINT
NEIGHBORHOOD DELIVERY AND
COLLECTION BOX UNIT
NI TC
random fill
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TRENCH X_ 10
NTS
filter fabric
6" perf pipe
1112" - 3/4" washed rock
slope ---,.
PLAN VIEW OF ROOF
NTS
to road
drainage system
2' X 10'
level trench
w/perf pipe
PERFORATED PIPE CONNECTION
WALK
AL
NOTES
INSTALLATION OF NDCBU INCLUDING
CONSTRUCTION OF BASE WILL BE
DONE BY U.S. POSTAL SERVICE
Know what's below.
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DA TE 10/26/15
SCALE 1 "=20'
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