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Home My WebLink AboutS-18010Ai� t 1 4" TOPSOIL _6 " CRUSHED EMERGENCY ACCESS SECTION DATUM: CITY OF RENTON (U.S.C. & G.S) T. B. io/i.. INVERT OF SANITARY SEWER MANHOLE NEAR S.W. CORNER OF PROPERTY. I.E. = 147.40 to' f 1 J NOTE.• THIS SEGMENT OF PIPE SHALL BE CLASS 52 DUCTILE IRON DUE TO WATER UTILITY CROSSING. � 1. All work and materials shall be in accordance with the latest edition of the City of Renton Standards and Specifications for Road, Bridge, and Municipal Construction prepared by W.S.D.O.T. and A.P.W.A. as adopted by the City of Renton Department of Public Works, and City of Renton Standard Specifications. 2. Prior to any construction activity, the contractor shall schedule and attend a pre- construc- tion conference with the City of Renton Construction Inspection personnel by phoning 277 -5570 3.A copy of these approved plans must be on the job site whenever construction is in progress. 4. All sanitary sewer improvements shall be constructed in.accordance with these approved plans. Any deviation from these plans will require approval from the owner, engineer and appropriate public agencies. 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. All locations of existing utilities shown hereon have been established by field survey or ob- tained from available records and should therefore be considered approximate only and not nec- essarily complete. It is the sole responsibility of the contractor to independently verify the accuracy of all utility locations shown and to further discover and avoid any other utili- ties not shown hereon which may be affected by the implementation of this plan. The contrac- tor shall contact the Underground Utilities Location Service (1 -800- 424 -5555) at least 48 hours prior to construction. The owner or his representative and the engineer shall be con- tacted immediately if a. conflict exists. 7. Locations of roadways, buildings and parking areas shown hereon are approximate. For dimen- sioned locations of these improvements, refer to the architectural site plan. Improvement and structure locations shall be field set by the engineer as required. 8. All manholes shall be per City of Renton Std. Plan No. 5.1.3. All manholes outside of public right -of -way and not located in paved areas shall have soiid,.locking covers. All manholes shall 'nave a minimum 0.10 foot to maximum 1.0 foot drop between Invert In and invert out. 9. All sewer pipe shall conform to one of the following specifications. a. Ductile iron - Class 50, cement - lined, conforming to USA Standard A -21.51 (AWWA C -51) . Ductile iron pipe is required on all sewers which are less than 5 fzet deep or greater than 16 feet deep and on all runs with a slope steeper than 20 %. Pipe anchors are re- quired at least 36 feet on center for slopes 20% to 35 %, at least 24 feet on center for slopes 35% to 50 %, and at least 16 feet on center for slopes 50% and greater. b. PVC - conforming to ASTM D -3034, SDR 35, with fittings and gaskets conforming to City of Renton standards. 10. All ductile iron pipe shall have an APWA Class "B" pipe bedding. All other pipe shall have an APWA Class "F" flexible pipe bedding. 11. All trench backfill shall be compacted to at least 95% of the maximum dry density per ASTM D- 1557 -70 (Modified Proctor) , for the first three feet above the pipe. The remaining backfill may be to 90% if not in an area of future pavement or structural fill. Trench backfill and compaction shall be completed prior to testing lines for leakage. 12. All side sewers shall be a minimum G" diameter and have a minimum slope of 2.0 %. Property /lot corners and /or building locations and finish grades shall be established in the field prior to any sewer construction. Side sewer tee stations are referenced from the nearest downstream manhole. The contractor shall maintain accurate as -built records of all side sewer loca- tions. All side sewers shall be tested at the time of main line testing. 13. Where a water main crosses above the sanitary sewer, and less than 3'0" of vertical clearance exists between the top of sewer and bottom of water main, the sewer shall be constructed or re- constructed with ductile iron pipe (Class 50) for a minimum horizontal distance of 10' on each side of the water main crossing. 14. Sanitary sewer main lines (8" diameter and larger) shall not be constructed any closer than 10 feet to any building OF 5 feet to any carport. 15. ,Open cut road crossings for utility trenches -on existing travelled roadways shall be backfilled with crushed rock and mechanically compacted. Cuts Into the existing asphalt shall be neatlins cut with saw In a continuous line. A temporary' mix patch must be plccod immediately after backfl0 and compaction. A permanent hot mix patch shall be placed within _ 10 days and shall be per City of Renton current standards.. t I (; � •o•• • � � a••• a v 1 j TYPE 1C -4R" TYpE II -48' 16. New connections to existing facilities shall be sealed off until upstream construction is t Ex. ca rr�E rt E{OSTING `SAN /TAR Y (' �j� c4 finished, tested, cleaned and accepted. All construction debris and water shall be removed S WER E SEM,ENT. J prior to opening the seal. All testing shall be in the ��-�, � p p g g presence of a City of Renton III -A inspector. /��JL/ !�. ( 'a/��/ / TYPE 17. A 15 foot sanitary sewer easement (7.5feet on each side of the pipe) must be prepared and con- veyed on City of Renton forms. /JL/ 5E� OETLF /G BELT/ 18. Prior to acceptance of construction and /or issuance of occupancy permits, /`P�/� engineer /surveyor - certified as -built drawings must be prepared of all sanitary sewer facili- ties. SAO PVC TES 19. Contractor is solely responsible for the means, . methods, and sequence of construction and for the safety of workers and others on the construction site. �� `COPE DtzILL. HOLH. ° � IN M(-( 20. Plans approved by the City of Renton, Public Works Department shall take precedence over all M_AIyHoLE ° other plans. V /j /l L% AAA p o� + �- 21. Backfill shall be placed equally on both sides of the pipe in layers with a loose average NG___ // �Y�/% - f'R�.VI.DE TEMI'0CAR'Y CA(' 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 d as described. FIFE aKING�sNA LgE 22. Datum shall be City of Renton, U.S.C. and G.S. A =,x l I NOT DtPP1 =D GAl-V. AND COATED W ASPHALT. �`' ^� 1 23. All disturbed areas shall be seeded and mulched or otherwise stabilized to the satisfaction of s D QLL MATERIALS SHALL r ? the Department for the prevention of on -site erosion after completion of construction. x a?= sueMiTCea To 4 , PCIOR TO CDN6TRl1CTl0ll 24. All pipe and appurtenances shall be laid on a properly prepared foundation in accordance with § f� { s ga°9 i t s " to 1 (TYF7 Section 7- 02.3(1) of the necessary current State of Washington Standard Specifications for �,i „t /2X2 %{STAIN° y g P 6 LESS s ct_ Road and Bridge Construction. This shall include necessary leveling of the trench bottom or IT PAt1S(ON t3OL the top of the foundation material as well as placement and compaction of required bedding Date a-1 ��/ I(T 1 P.� I J material to uniform grade so that the entire length of the pipe will be supported on a b F� (� d1 uniformly dense unyielding base. jjj I ' -� 25. In unimproved areas, manhole to extend minimum 6 inch and maximum 18 .inch above finished I x :. OUTF4LL grade. In paved area, cover must slope in all directions to match paving. � CuANNEL ct t .s 26. The hours of work In the. street right-of-way hall be limited to 8:30 a.m. to 3:30 p.m, on weekdays unless otherwise approve 'writing by the Department of Public Works at 235 -2620. All street closures, partial or full, shall be i a proved b the J ngDepartment public Works hours In advance. The police department, fire department, and 911 4= ° PuG SE�1D shall be notified, 24 hours In advance. ks 2 d £' WIIVEKTICAL - -IJFFOrCT -`' BENCHMARK . 27. fl nstr be` the responsibility of the contractor to obtain street use and any other related permits prior to any TOP OF CONCRETE ° cashell boon. iC-) MONUMENT AT THE REMMEN RECOMMENDED �' INTERSECTION OF N.E. -® °'T® FOR A,P/PIRO FOR APPROVAL 12TH ST. AND ABERDEEN DROP 11 MANHOLE ®ETA /L. �y��4/IC,1,�1 t�lg/ %Qt��t AVE. N.E. ELEV. = 280.88 NO SCALE $� UT(LITp� �NGItd�EK PLR P{ aV JrW a Q QaO� J e0 O L)Z N O O �Z M q s. J Z U +� Z a Q EC ? W 2 0 aae W Q W > , (� Q a) u h oU) r ? Q ca O � �Z W W 0 UA 11 W W Z �0 �Z ® W J O5 ® iJ .N NZz CZI k O Q 2 4 �'V- Z_ZtJ r4 L6 Z I� W "gip 800 jjAA U rQr � v �3 O 4 Q o a N W W w 3 � a Q W W w Q Z Q L U 0 > 11 Q Ia 0 0 O Q > Ij fflo =I PROJECT NUMBER 8914® 1 I I I I I A I I I I A I I I A I I A I I i A I I I- IA l 1 I I I I '� !1 n w n w n w r w • w ea w a� A A A /\ n n ,--. ro • s, w n a\ r A n a av w A w w w n w as w,