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Backfill with materials equal to or better than the existing pavement and base in quality. New pavement shall be 1 " thicker than existing pavement, minimum of 0.25 feet. New base shall be 1" thicker than existing base, minimum of 0.5 feet. Existing Pavement 6" Min. 6" 6" 6" Min. (Typ.) ..(Typ.) ,� „ ^Compact in 12" max. 3'-0" 3 —0. layers to a min. relative compaction of 95%* under pavement and ----_____ \ / 90% outside pavement. \ _ Variable Variable ` __-- --__ Compact in 24"• max. O _ layers to .a min. relative 00. OD+12" compaction of 85%. O.D./2 Compact in 6" layers to a minimum relative compaction of 90%. 10" Min. —O.D. 10" Min. 10" Min. 0.D. 10" Min. 0.D. O.D. + 20" Min. + 20" Min.- RIGID inaRIGID CONDUIT FLEXIBLE CONDUIT NOTES: 1. Relative compaction of materials shall be tested. in accordance with the State of California, Dept. of Transportation Testing Manuals, test method No. California 216 or 231. 2. All existing pavement shall be neatly cut to line prior to trench excavation. 3. Jetting or ponding will be permitted within the street Right of Way with a 3 year bond. 4. When shown by soil composition and compactability, ninety percent (90%) compaction may be used, when approved by the Director of Public Works. 5. Special bedding requirements may be shown on the plans or specified in special provisions. 6. Shoulders shall be as shown on the plans or specified in the special provisions but in no case shall the shoulder be less than three feet wide as measured from the edge of pavement. No. Revised By Approved by 1 Feb. 1996 PD TYPICAL TRENCH BACKFILL ' Direct of Public Works Drosm by JLD Chocked by COUNTY OF SAN JOAQUIN Date JUNE 1997 Scale NONE 0EPAMEdi of PUBLIC WORKS Drawing Mo. R=29