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HomeMy WebLinkAboutS-34710211. Open SIDE SEWER NOTES utility trenches on existing traveled roadway shall be backfilled THESE NOTES SHALL APPEAR ON PROJECTS FOR THE SANITARY SEWER UTILITY. mechanically compacted unless otherwise approved 1. Prior to installation of a sanitary sewer connection, a side —sewer permit must be Cuts into the existing asphalt shall be neatline cut 1. All work and work material shall be in conformance with the standards and purchased from the City of Renton Public Works Department. in a continuous line. A temporary specifications of the City of Renton Planning /Building /Public Works Department and after backfill LO the latest edition of the WSDOT /APWA Standards and Specifications, as approved 2. Types of pipe and fittings that can be used for sanitary sewers shall be approved hot mix patch shall be placed within 10 days and and modified by the City of Renton in the Renton Standard Plans & Specifications. by the Department of Public Works, Rubber or neoprene gaskets as specified by the current standards. A set of approved plans shall be kept on site at all times during construction. manufacturer, shall be used on joints. 2. The hours of work in the street right of way shall be per City specifications on 3. A minimum grade of 2% (1/4" per foot) must be maintained with 4" pipe. In weekdays unless otherwise approved in writing by the Planning /Building /Public Works the event a 2% grade cannot be maintained, the owner must grant a grade release Department. An approved traffic control plan must be obtained prior to beginning to the City and then can install 6" pipe at a grade of 1%. any work within public right of way. 4. For inspection of side sewer, call 24 hours in advance. The inspection phone 3. All locations of existing utilities shown are approximate and it shall be the number is on the side —sewer permit. Site must be ready for inspection and contractor's responsibility to verify the true and correct location so as to avoid representation on the site when inspector arrives at appointed time. Side sewer and LJJ damage or disturbance. stub shall be tested per City specifications. Make the connection at the house. Do w not backfill the ditch until approval is given by the inspector. Final approval will be z LIJ 4. A pre— construction conference and a 24 hour notice shall be required prior to granted after the existing septic tank has been pumped out and filled with sand. starting new construction. It shall be the contractor's responsibility to secure all ;� necessary permits prior to starting construction. (Inspection will be accomplished by 5. Install side sewer with 2' minimum cover. 18" cover is allowed at the house if o a representative of the City of Renton.) It shall be the contractor's responsibility to outlet is shallow. notify the Public Works inspector 24 hours in advance of backfilling all construction. n 6. If side sewer stub is not available. The contractor shall be responsible for its I 5. Contractor is solely responsible for the means, methods and sequences of installation. The side sewer shall be a minimum 6" in size. If tee is not available, construction and for the safety of workers and others on the construction site. unless otherwise approved by the City, make tap through cost iron saddle secured OL to sewer main with stainless steel bands when connecting new side sewers to 6. It shall be the responsibility of the contractor to obtain street use and any other existing main. Plain and reinforced concrete, DI pipe, and Cl pipe sewer mains are related permits prior to any construction. to be core drilled. Vitrified clay pipe shall be cut and have a new tee sectioned in. LU All work within street right —of —way shall be done by a Licensed and bonded 7. Plans approved by the City of Renton, Public Works Department shall take contractor. precedence over all other plans. 7. All work shall be accomplished in accordance with the Washington Industrial 8. A copy of these approved plans must be on the job site whenever construction is Safety and health Act. (WISHA) in progress. 8. All trench restoration for side sewers in the public right —of —way shall conform to 9. The contractor shall provide the City of Renton with an as —built drawing of the the most current trench restoration as shown on dwg. #HR -23. sanitary sewer system, which has been stamped and signed by a licensed professional engineer or licensed professional surveyor. 9. All building sewer and side sewers shall hove bedding in accordance with drawing BW18C or BR09 as applicable. 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 10. There shall be a minimum 10 foot horizontal separation between sanitary side layer to 95 percent of maximum density. These compacted layers must extend for sewers and water services and a minimum 5 foot horizontal separation between one pipe diameter on each side of the pipe or to the side of the trench. Materials sanitary side sewers and al other utilities. to complete the fill over pipe shall be the some 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 the Public Works inspector. 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 within 10 days and shall be per City of Renton current standards. 12. Datum shall be City of Renton, 1988 NAVD. 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 will 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 u improved 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. Call 2 Working Days Before You Dig Utilities Underground Location Center ® fil 2 1 I•-1 PROJECT: Renton Triplexes q Renton, WA R SHEET TITLE: Sanitary Sewer Notes 5- 4- 7f0 a ®r ®: Date Date Date JOB NO: T07250 SCALE: SHEET: 5 FILE: phrentdwa