HomeMy WebLinkAboutS-180701GENERAL NorEs A.#vo SPECIFICAr!ONS
1.
ALL WORK MATERIALS SHALL BE IN CONFORMANCE WITH THL CITY OF
RENTON STANDARD SPECIFICATIONS FOR MUNICIPAL CONSTRUCTIONS. 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 P.M. ON WEEKDAYS UNLESS OTHERWISE APPROVED IN WRITING BY THE
DEPARTMENT OF PUBLIC WORKS AT 235-2635. ALL STREET CLOSURES, PARTIAL OR
FULL, SHALL BE APPROVED BY THE DEPARTMENT OF PUBLIC WORKS 24 HOURS IN
ADVANCE. THE POLICE DEPARTMENT, FIRE DEPARTMENT, AND 911 SHALL BE
NOTIFIED 24 HOURS IN ADVANCE.
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 LOCATE CALL
48-HOUR LOCATORS, 1-800-424-5555.
4.
A PRECONSTRUCTION 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 UTILITY DEPARTMENT 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 DIRECTOR OF PUBLIC WORKS 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.
DATUM SHALL BE CITY OF RENTON, U.S.C. AND G.S.
10.
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.
11.
WHERE NEW PAVING MUST MATCH EXISTING PAVING, APPLY TACK COAT FOR PROPER
SEALING.
12.
ALL UTILITY TRENCHES SHALL BE BACKFILLED AND COMPACTED TO 95% MAXIMUM DRY
DENSITY MODIFIED PROCTOR.
TORM ORC1 AI NOTES AND -SPECIFICATIONS
1.
CONTRACTOR SHALL PROVIDE AND MAINTAIN TEMPORARY SEDIMENTATION/COLLECTION
FACILITIES TO INSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER NATURAL
DRAINAGE SYSTEM. THESE FACILITIES MUST BE IN OPERATION PRIOR TO CLEARING
AND CONSTRUCTION AND MUST BE MAINTAINED UNTIL CONSTRUCTION AND
LANDSCAPING ARE COMPLETED AND THE POTENTIAL FOR ON -SITE EROSION HAS
PASSED.
2.
ALL ROOF DOWNSPOUTS AND FOOTING DRAINS SHALL BE TIGHTLINED TO THE STORM
DRAIN SYSTEM.
3.
THE STORM DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE
APPROVED PLANS WHICH ARE ON FILE AT THE CITY OF RENTON DEPARTMENT OF
PUBLIC WORKS. ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRIT'_T'EN
APPROVAL FROM THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS.
4.
THE CONTRACTOR SHALL PROVIDE THE CITY OF RENTON WITH AN AS -BUILT DRAWING
OF THE STORM DRAINAGE SYSTEM, THE SANITARY SEWER SYSTEM, THE WATER SYSTEM
AND THE SITE GRADING WHICH HAS BEEN STAMPED AND SIGNED BY A LICENSED
PROFESSIONAL ENGINEER.
5.
BEDDING SHALL BE PER APWA STANDARD PLAN NO. B-18c, CLASS "B" FOR RIGID
PIPE (CONCRETE AND IRON). BEDDING MATERIAL SHALL BE TYPE I PLACED FROM
FOUR (4) INCHES BELOW PIPE TO SPRINGLINE FOR PIPES TWENTY-SEVEN (27)
INCHES DIAMETER AND SMALLER AND FROM SIX (6) INCHES BELOW TO SPRINGLINE
FOR PIPES THIRTY (30) INCHES DIAMETER AND LARGER. BEDDING SHALL BE
PLACED BY HAND IN SIX (6) INCH LAYERS AND COMPACTED TO NINETY-FIVE (95)
PERCENT MAXIMUM DENSITY.
6.
BEDDING SHALL BE PER APWA STANDARD PLAN NO. B-18c, CLASS F FOR FLEXIBLE
PIPE (CMP OR PLASTIC). BEDDING MATERIAL SHALL BE TYPE 2 PLACED FOUR (4)
INCHES BELOW PIPE TO SIX (6) INCHES ABOVE PIPE FOR PIPE TWENTY-SEVEN (27)
INCHES AND SMALLER OR SIX (6) INCHES BELOW PIPE TO SIX (6) INCHES ABOVE
PIPE FOR PIPE OVER TWENTY-SEVEN (27) INCHES INSIDE DIAMETER. BEDDING
SHALL BE PLACED BY HAND IN SIX (6) INCH LAYERS AND COMPACTED TO NINETY-
FIVE PERCENT MAXIMUM DENSITY.
7.
BACKFILL SHALL BE BANK RUN GRAVEL OR NATIVE MATERIAL OF SIMILAR
CHARACTERISTICS TO BANK RUN GRAVEL PLACED ABOVE PIPE BEDDING IN EIGHT (8)
INCH LAYERS, WITH EACH LAYER COMPACTED TO NINETY-FIVE (95) PERCENT
MAXIMUM DENSITY. CARE SHALL BE TAKEN SO THAT BACKFILLING OPERATIONS WILL
NOT DISTURB THE PIPE IN ANY WAY. ROCKS LARGER THAN TWO (2) INCHES- SHALL
BE AT LEAST FOUR (4) INCHES FROM THE PIPE. JETTING OR FLOODING WILL NOT
BE PERMITTED.
8.
RAIN LEADER PIPE SHALL BE POLYVINYL CHLORIDE (PVC) RUBBER GASKETED ASTM D
3034 SDR 35.
9.
STORM DRAIN PIPE FOR TIGHT -LINE INSTALLATION SHALL BE CONCRETE RUBBER
GASKETED ASTM C-14, CL.2 OR ASTM C-76-II, CORRUGATED GALVANIZED STEEL
TREATMENT FIVE (5) ASPHALT COATED, HELICAL CORRUGATED ALUMINUM WITH
TREATMENT FIVE (5) ASPHALT COATED. STEEL AND ALUMINUM PIPE SHALL HAVE A
MINIMUM 1.5 FEET OF COVER IN PAVED AREAS. STEEL AND ALUMINUM PIPE SHALL
HAVE WATER TIGHT CONNECTING BANDS. METAL PIPE SHALL BE SIXTEEN (16)
GAUGE.
10.
TYPE II CATCH BASINS (DIAMETER STATED ON PLAN) SHALL BE PER APWA STANDARD
PLAN NUMBER B-le & B-lf WITH RING AND COVER OR FRAME AND GRATE (AS
STATED ON PLAN). TYPE I CATCH BASINS SHALL BE APWA STANDARD PLAN B-1
WITH APWA STANDARD PLAN B-2a, METAL FRAME AND GRATE. TYPE IL CATCH
BASINS SHALL BE PER APWA PLAN B-la WITH APWA STANDARD PLAN B-2a, METAL
Q
FRAME AND GRATE.
11.
MAXIMUM TRENCH WIDTH FROM TOP OF PIPE ZONE TO BOTTOM OF TRENCH SHALL BE
FORTY (40) INCHES MAXIMUM FOR PIPE FIFTEEN (15) INCHES DIAMETER AND
SMALLER. MINIMUM TRENCH WIDTH SHALL BE TWENTY-FOUR (24) INCHES PLUS
INSIDE DIAMETER FOR PIPE TWENTY-FOUR (24) INCHES OR SMALLER. ABOVE THE
PIPE ZONE, THERE IS NO LIMIT TO TRENCH WIDTH.
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SAN/TAfcY SEWER NOTES+f SPEC/F/CATlONS
1. 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.
2. 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.
3. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED
FOUNDATION IN ACCORDANCE WITH SECTION 7-02.3(1) OF THE CURRENT STATE OF
WASHINGTON STANDARD SPECIFICATIONS 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. IF THE NATIVE
MATERIAL IN THE BOTTOM OF THE TRENCH MEETS THE REQUIREMENTS FOR "GRAVEL
BACKFILL FOR PIPE BEDDING" THE FIRST LIFT OF PIPE BEDDING MAY BE OMITTED
PROVIDED THE MATERIAL IN THE BOTTOM OF THE TRENCH IS LOOSENED, REGRADED
AND COMPACTED TO FORM A DENSE UNYIELDING BASE.
4. SANITARY SEWER PIPE SHALL BE CONCRETE RUBBER GASKETED ASTM C14-CL.3 OR
ASTM C76-11 OR POLYVINYL CHLORIDE (PVC) RUBBER GASKETED ASTM D 3034, SDR
35, OR DUCTILE IRON CLASS 52.
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NOTES
1. USE MIN. ,4e DIA' CATCH
BASIN TYPE 2
2• OUTLET CAPACITY: DEVELOPED
DESIGN FLOW
3. METAL PARTS: CORROSION
RESISTANT. GALVANIZED PIPE
PARTS TO HAVE ASPHALT
TREATMENT 1.
4. FRAME 6 LADDER OR STEPS
OFFSET SO:
A. CL.EANOUT GATE IS VISIBLE
FROM TOP.
B. CUMB-DOWN SPACE IS CLEAR
OF RISER AND CLEANOUT
GATE.
C. FRAME IS CLEAR OF CURB.
5. IF METAL OUTLET PIPE CONNECTS
TO CEMENT CONCRETE PIPE:
OUTLET PIPE TO HAVE SMOOTH
O.D. EQUAL TO CONCRETE PIPE
LD. LESS 114".
6. PROVIDE AT LEAST ONE 3" X .090
GAGE SUPPORT BRACKET
ANCHORED CONCRETE WALL
(MAX. X-0- VERTICAL SPACING).
7. LOCATE ELBOW RESTRICTOR(S) AS
NECESSARY TO PROVIDE MIN.
CLEARANCE AS SHOWN.
8. LOCATE ADDITIONAL LADDER RUNGS
IN STRUCTURES USED AS ACCESS TO
TANKS OR VAULTS TO ALLOW ACCESS
WHEN CATCH IS FILLED WITH WATER.
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Removable Watertight
Coupling cr Fjay%ge.
2" Min
6'• t2 FAIN
Max.
Plate Welded to f rbow
With Orifice as Specified
Elbow-Restrictor
Isometric
G
TYPE IL w"
Frame, Grate & Round Solid Cover
Marked "DRAIN" with Lockinq Bolts
See Note B
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See Note b
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