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HomeMy WebLinkAboutS-05460E4 -- Ditch Slope Check Dam Spacing ° 1 O 5% � l50i 1 5 -10% 100 > 10% 50 1.0' j - -0.5' Min. Key Rock Into Swale 0.25' Min. INTERCEPTOR DITCH X °SECTION 6 ROCK CHECK DAM (FRONT VIEW) !Min. In. I ' Flaw _ Flow - t - - -_ - -- A L Iv Sump Behind Rock Check Dom Key Rock 5' Shall Be Inspected Daily 6 MI!o Swale Min. 0.25' Cleaned When Collected Debris - Exceeds 1/2 Of Its Depth ` NOTE: Rock Shall Be 4" Minus Quarry Rock ROCK CHECK DAM X-SECTION (SIDE VIEW) i �!i t iuM6� 1 N 'r GrT!>CC' 1 0171 D( e.+r W I I ri RQCK CHECK DAM ?4e_"Tlztc-non1fJ ivy AP1144Ttar.l : U6� Gall.( FtR- N44- -t+j -0 VMT4irlaK 7NNkV. Nor"A XWED FM VAJe• 10 QAADWNYE7,DR1VEw^j,J :PARW4"41 !-rr fJ 09. 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SHALL BE and specifications of the City of Renton Utility Department and CLEARLY FLAGGED IN THE FIELD AND OBSERVED DURING the latest edition of the WSDOT /APWA Standards and CONSTRUCTION. specifications. A set of approved plans shat be kept on -site at all times during construction. 2. ALL REQUIRED SEDIMENTATION /EROSION CONTROL ��• FACILITIES MUST BE CONSTRUCTED AND IN OPERATION 2. The hours of work in the street right-of-way shall be limited to 2'SafingArpf6 I.: ;.�. + :. III djr,X PRIOR TO LAND CLEARING AND /OR OTHER CONSTRUCTION 8:30 am to 3:30 pm on weekdays unless otherwise approved in /,5 3r✓ai ent 6fOruyG -` TO INSURED THAT SEDIMENT LADEN WATER DOES NOT wxitirg by the Department of Public Works at 235 -2620. All ENTER THE NATURAL DRAINAGE SYSTEM. ALL EROSION street closures, partial oil full, shall be approved by the +; -t AND SEDIMENT FACILITIES HALL BE MAINTAINED IN A Department of Public Works 24 hours in advance. The police SATISFACTORY CONDITION UNTIL SUCH TIME THAT department, fire department and 911 shall be notified 24 hours 3/,IJ {tyr hlaA(wel FeA60tJ CLEARING AND /OR CONSTRUCTION IS COMPLETED AND in advance. - CROSS SECTION POTENTIAL FOR ON -SITE EROSION HAS PASSED. THE 'rr f_ IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND 3. All construction shall be in accordance with "Standard NO SCALE A1o� M411 be a,46VU ADDITIONS TO EROSION /SEDIMENTATION CONTROL SYSTEMS Specifications for Municipal Public Works Construction" prepared ey(,waper1 cy 2y 1vt1duil a MQiIM SHALL BE THE RESPONSIBILITY OF THE PERMITTEE. by Washington State Chapter American Public Works Association, 198E edition (:APWA) and City of 'Renton Standard 3... THE EROSION AND SEDIMENTATION CONTROL SYSTEMS Specifications. DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. 4. All locations of existing utilities shown are approximate and it r {® ��� /py AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR shall be the contractor's responsibility to verify the true and �c"- b`HX w lfliGf7( SEASONAL CONDITIONS DICTATE, THE PERMITTEE SHALL correct location so as to avoid damage or disturbance. ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE NECESSARY TO INSURED 5. A preconstruction conference and a 24 hour notice shall be COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. required prior to starting new construction. It shall be the DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE contractor's responsibility to secure aL' necessary permits prior L1 ~`o OBLIGATION AND RESPONSIBILITY OF THE PERMITTEE TO to Etarting Construction. (Inspection will be accomplished b y a ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY representative of the City of Renton.) It shall be the -� - HIS ACTIVITIES AND TO PROVIDE ADDITIONAL FACILITIES, contractor's responsibility to notify the utility department 24 OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE hours in advance of backfilling all construction. NEEDED TO PROTECT ADJACENT PROPERTIES AND WATER ° QUALITY 0- THE RECEIVING DRAINAGE SYSTEM. 6. Contractor is solely responsible for the .means, methods and � sequences of construction and for the safety of workers and 1,5 6ed,i resrt $/WwgG =�``a' �` 4. APPROVAL OF TH ?S PLAN IS FOR EROSION / SEDIMENTATION t- ` others on the constructior. site. -2' Stffllnf jn*/X � � CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL C Death of Z - 4' Cock OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF 7. It shall be the responsibility of the contractor to obtain street ( ka -/ked L. -ave/ - PIPES, RESTRICTORS, C- HANNELS, OR RETENTION FACILITIES• use and any other related pe,.mits prior to any construction. - SEDIMENT TRAP OUTLET 5. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETATION e• Pans approved iz the City,. of Renton. Public Works Department pp Y _ : NO SCALE AND WHERE NO FURTHER WORK IS ANTICIPATED FOR A shall take precedence over all other plans. $ PERIOD OF 30 DAYS OR MORE, ALL 'DISTURBED AREAS MUST § BE IMMEDIATELY STABILIZED WITH MULCHING, GRASS 9. A copy of these approved plans must be on the job site PLANTING OR OTHER APPROVED EROSION CONTROL TREATMENT APPLICABLE TO THE TIME OF YEAR IN whenever construction is it progress. QUESTION. GRASS SEEDING ALONE WILL BE ACCEPTABLE 10. The contractor shall provide the City of Renton with an as- ONLY DURING THE MONTHS OF APRIL THROUGH SEPTEMBER built drawing of the 'sanitary sewer system which has been INCLUSIVE. SEEDING MAY PROCEED, HOWEVER WHENEVER stamped and signed by a licensed professional engineer or IT IS IN THE I- NTEREST OF THE PERMITTEE, BUT MUST BE licensed professional surveyor. a AUGMENTED WITH MULCHING, NETTING, OR OTHER TREATMENT APPROVED BY THE CITY OF RENTON, OUTSIDE 11 •' Backfill shall be placed equally on both sides of the pipe in THE SPECIFIED TIME PERIOD. '- layers with a,loose average depth of 6 inches, maximum depth of 8 inches, thoroughly tamping each 'layer to 95 percent or 6. FOR ALL EROSION /SEDIMENTATION CONTROL PONDS WHERE maximum density. These compacted layers must extend for one THE DEAD STORAGE DEPTH EXCEEDS 6 INCHES, A FENCE, A pipe diameter on each side of the pipe or to the side of the MINIMUM OF 3 FEET HIGH IS REQUIRED. WITH 3:1 SIDE trench. Materials to complete the fill over pipe 'shall be the ..SLOPES.. - : .same as described. 7. A TEMPORARY GRAVEL CONSTRUCTION ENTRANCE, 30' X 50' 12. Open cut road crossings for utility; trenches on existing X 8" OF 4 TO 6 INCH QUARRY SPALLS SHALL BE LOCATED traveled roadway shall be backfilled with crushed rock and AT ALL POINTS OF VEHICULAR INGRESS _AND EGRESS TO mechanically compacted per City of Renton standards. Cuts into THE CONSTRUCTION SITE. the exiting asphalt 'shall be neatline out with saw in a continuous line. A temporary mix patch must be placed immediately after backfill and compaction.' A permanent hot mix patch shall be placed with 10 days and shall be per City of Renton current standards. ' 13. Datum shall be City of Renton, U.S.C. and G.S. 14. A-1 disturbed areas shall be seeded and mulched or otherwise stabilized to the satisfaction of the Department for the Prevention of no -site erosion after the completion of construction. 15. All pipe and appurtenances shall be laid on a prorerly prepared foundation in accordance with Section 7- 02.3(1) of the current state of Washington standard specifications for road and bridge 1 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. Pipe bedding shall be pea ,gravel o" above and 'below the pipe.,' k f l l 16. Sanitary sewer pipe shall be polyvinyl chloride (PVC) rubber gasketed ASTM 3034, SDR 35, or ductile iron Class 50. 17. In unimproved areas, manhole to extend minimum 6 inch and maximum 18 inch above finished grade. In; paved area, cover must slopa in all directions; to match paving. -89 COLLINS & ASSOCIATE'S Cl R C,OC :P.O. BOX 2332' REDMOND VA 980 ?3 1206 i 885 - 0102 CITY OF RENTON � - DEPARTMENT OF PUBLIC WORKS I - ` ;DESIGNED. DATE `+" - I -� t FILE NO ` DRMVN_- -V/�•Z - - -° i v CHECKED SCALEAS XI¢o no r encL_. I NO. RCYISION By APPROVED SHEET -__OF 3