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Home My WebLink AboutWWP2701775.3EROSION CONTROL NOTES 4' 4. IDitch Slope I Check Dom Spacing ' 0 - 5 % 150, 5 - 10°4, 100' 0.5, Min. Key Rock Into Swale 0.25' Min. INTERCEPTOR DITCH X-SECTION a ROCK CHECK DAM (FRONT VIEW �I� MI fn I Flow Flow �OL -I' Key Rock I 5' _ Sunp Behind Rock Check Dam (� Shall Be Inspected Daily 8 Into Swale Cleaned When Collected Debris Min. 0.25' Exceeds 1/2 Of Its Depth NOTE: Rock Shall Be 4" Minus Quarry Rocr ROCK CHECK DAM X-SECTION (SIDE VIEW) TYPICAL INTERCEPTOR DITCH WITH ROCK CHECK DAM T>z(cTtonl� FOR D6� Cgt_y FoiL ot11. 77 TO DGT -Nnc11-ice. NOT" A1. xwei> FCK UhE (►.! fzA4DWP�`(S,DRIYtW�ih1 PMW�1G� �jfi�1.1.C7 CR WNE� VENIwt-�+c(Z t-0IRD�J vrDUl.p OCLUNC �1 OZ4silV£ 80U4,9D Reqv(Fw--p 13C%E4:-�t Arl hDJMaw' v544ax-w- LAAa p9t:;Iv.+wuD f o,- 3a CMP p�f-R "t7NNDA4ZLD LCC.K( KCa M-H• Ff"?-L 4 GOVE.9 :W�. 1CC.R-r>. ) .ASD'2�i15o C oN��.-ram PIPS. �plNy M+i• STEPh M! O.L. WELD 09, BoLT e S1?4101.RD M•�4•"!mPtj M AA F -*,v1E Lxlc• i,,Iy LID (WVtR}KF-D 'ORA4N") M00NTE0 OYESZ 244 Wee IN(-, PeTeirncN TANK- erx .ID�AXD VPE 2 G5 C-4R44zz1,E -ToP rm" gisEr- ,Upe 41 MI►.1.,6AMM MATERIAL- ♦ 4 AAF- A--S TAA1K WEtDI=D C9. (USED 'M 'TANK PC--TEryR04 ThA1- P10 uCrE t�: 1• U' a,D 10 S(1 K (:J Z A4.1_ 1• AtTSRtAALh 1V M Xt4_UMIQ0M or- (4AcL.UfrN LZED s 6p;P 11tur GoA.Tep C-tATMeNi l or 5Ft �• M0t6Tr.rtENLr->CATn VG�{�C,r � �� B`( y �e 0 e Aow ��'taVQ�t•oK i r1 4'M.it go / +/ Z, set&ing Deaf! ,r�,.� '/ti'iaz T 1' 0 � Fl><er Fbri� k1a6YAVerrwlj , 1 CROSS SECTION L NO SCALE �JUiz% !"►Q(� be 404'6' V V&7 6,PV4. ,rR crby b4lrldlif9 a be✓M Ovrrf/ow Ste.%/way b' �icK- Kli�Hi s� �- 2' Sett/lnlf celoll( e J' Depth of Z - 4' !lock I' pcpfh oil- 3/�`-/��' WaSkcd Ciwel SEDIMENT TRAP OUTLET NO SCALE 1. ALL LIMITS OF CLEARING AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED ON THE PLAN SHALL BE CLEARLY FLAGGED IN THE FIELD AND OBSERVED DUPING CONSTRUCTION. 2. ALL REQUIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR OTHER CONSTRUCTION TO INSURED THAT SEDIMENT LADEN WATER DOES NOT ENTER THE NATURAL DRAINAGE SYSTEM. ALL EROSION AND SEDIMENT FACILITIES HALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETED AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION/SEDIMENTATION CONTROL SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMITTEE. 3. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE PERMITTEE SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE NECESSARY TO INSURED COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE PERMITTEE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY HIS ACTIVITIES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 4. APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES. 5. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETATION AND WHERE NO FURTHER WORK IS ANTICIPATED FOR A PERIOD OF 30 DAYS OR MORE, ALL DISTURBED AREAS MUST BE IMMEDIATELY STABILIZED WITH MULCHING, GRASS PLANTING OR OTHER APPROVED EROSION CONTROL TREATMENT APPLICABLE TO THE TIME OF YEAR IN QUESTION. GRASS SEEDING ALONE WILL BE ACCEPTABLE ONLY DURING THE MONTHS OF APRIL THROUGH SEPTEMBER INCLUSIVE. SEEDING MAY PROCEED, HOWEVER WHENEVER IT IS IN THE INTEREST OF THE PERMITTEE, BUT MUST BE AUGMENTED WITH MULCHING, NETTING, OR OTHER TREATMENT APPROVED BY THE CITY OF RENTON, OUTSIDE THE SPECIFIED TIME PERIOD. 6. FOR ALL EROSION/SEDIMENTATION CONTROL PONDS WHERE THE DEAD STORAGE DEPTH EXCEEDS 6 INCHES, A FENCE, A MINIMUM OF 3 FEET HIGH IS REQUIRED, WITH 3:1 SIDE SLOPES. 7. A TEMPORARY GRAVEL CONSTRUCTION ENTRANCE, 30' X 50' X 8" OF 4 TO 6 INCH QUARRY SPALLS SHALL BE LOCATED AT ALL POINTS OF VEHICULAR INGRESS AND EGRESS TO THE CONSTRUCTION SITE. SANITARY SEWER NOTES AND SPECIFICATIONS 1. All work materials shall be in conformance with the standards and specifications of the City of Renton Utility Department and the latest edition of the W S D 0 T/A P W A Standards and 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 Department of Public Works at 235-2620. 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 sha11 be notified 24 hours in advance. 3. All construction shall be in accordance with "Standard Specifications for Municipal Public Works Construction" prepared by Washington State Chapter American Public Works Association, 1988 edition (APW A) and City of Renton Standard Specifications. 4. 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. 5. 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. 6. Contractor is solely responsible for the means, methods and sequences of construction and for the safety of workers and others on the construction site. 7. It shall be the responsibility of the contractor to obtain street use and any other related permits prior to any construction. 8. Plans approved by the City of Renton, Public Works Department shall take precedence over all other plans. 9. A copy of these approved plans must be on the job site whenever construction is in progress. 10. The contractor shall provide the City of Renton with an as - built drawing of the saritary sewer system which has been stamped and signed by a licensed professional engineer or licensed professional surveyor. 11. 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 on 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. 12. Open cut road crossings for utility trenches on existing traveled roadway shall be backfilled with crushed rock and mechanically compacted per City of Renton standards. Cuts into the existing asphalt shall be neatline cut 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. All 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 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. Pipe bedding shall be pea gravel 6" above and below the pipe. 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 slope in all directions to match paving. op / 77, 15 YoUN0 Pl.b-f PP ot�4 -89 COLLINS & ASSOCIATES J�N C04� P.O. BOX 2332 REDtlCNO VA 98073 (206 ) 885 -0102 /y' L`c. r�� YES'• �i` CITY OF RENTON DEPARTMENT OF PUBLIC WORKS -n No. DESIGNED DATE411-21 FILE NO DRAWN -�'�- SCALEAc-, (fi n rIM0 BOOK .AGL CHECKED_ RLVI'SION I BY I APPR. I DATE APPROVED SHEET _OF