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2 . 05 . 3 ( 3 ) (c ) <br /> • ACCESS TO STATION TO STATION DRAWING NO. <br /> 1 ) Ponds A & B 75+00 to 99+00 123 <br /> 2 ) Topsoil Pile #1 100+00 to 103+00 124 <br /> 3 ) Pond C 104+00 to 119+00 123 <br /> 4 ) Pond E 120+00 to 125+00 123 <br /> 5 ) Pond D 126+00 to 140+00 124 <br /> 6 ) Topsoil Pile #2 141+00 to 145+00 124 <br /> 7 ) Office Area 146+00 to 149+00 124 <br /> Topsoil will be stripped from the haul road align- <br /> ment prior to the start of construction of the road. Borrow <br /> ditches typically 18" deep will be excavated on one or each side <br /> of the road to provide material for the subgrade of the road. <br /> Where necessary, depending on the subgrade condition and the <br /> intended use of the road, gravel surfacing will be placed on the <br /> road. The road surface will be 20 feet wide . Road #1 has a <br /> pitch grade of 15% for 600 feet and road #4 has a pitch grade of <br /> 12% for 150 feet . All other access road grades are less than 10% <br /> so the overall grade of the access roads is obviously not steeper <br /> than 10%. Cut and fill slopes will be constructed using 1 . 5H: 1V <br /> slopes . <br /> Drainage for the access roads will be provided by <br /> borrow ditches and numerous culverts . The sizing calculations <br /> • for the ditches and culverts are presented in Exhibit 9 . One of <br /> two ditch and culvert sizes will be used for all of the access <br /> roads . Either an 18 inch culvert with an 18 inch deep borrow <br /> ditch or a 24 inch culvert with a 24 inch deep borrow ditch will <br /> be used. The culverts to be used a numbered 1 through 12 and are <br /> shown on the drawings and the sizing calculations are presented <br /> in Exhibit 9 . Where borrow ditch drainage runs through a 18 inch <br /> culvert , an 18 inch borrow ditch will be constructed . Where <br /> borrow ditch drainage runs to a 24 inch culvert , a 24 inch borrow <br /> ditch will be constructed. <br /> To provide erosion control , the borrow ditches and <br /> out and fill slopes will be seeded. The seed mix used will be <br /> that used to stabilize the topsoil stockpiles or other appropri- <br /> ate seed mix approved by the Division. Broadcast seeding will be <br /> used. <br /> After the access roads are no longer needed for <br /> operations they will closed to vehicular traffic and natural <br /> drainage patterns will be restored. All culverts will be re- <br /> moved. Roadbeds will be ripped, plowed, and scarified. Fill <br /> slopes will be rounded or reduced and shaped to conform the site <br /> to adjacent terrain. Cut slopes shall be shaped to blend with <br /> the natural contours . The regraded areas will be covered with <br /> topsoil and revegetated in accordance with section 2 . 05 . 4 . <br /> . 2 . 05-7i July 1991 <br /> s <br />