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ROCK TUNNEL VICINITY PROJECT (1999) <br />The purpose of the Rock Tunnel Vicinity Project is to complete certain Tasks contemplated in the <br />Reclamation plan of the permit. These Tasks were not completed previously as access to certain <br />areas was still needed, and final disposition of certain structures was in dispute. <br />The Tasks to be accomplished in completion of this Project include the following: <br />- Demolition Demolition of the Lamp House, the pump house located near Dutch <br />Creek and of the Water Tank located uphill and due west of the Rock Tunnel will be <br />accomplished. Structures will be demolished and foundations and footers will be removed to <br />three feet below ground surface. These materials will be transported to the base of the east end of <br />the Rock Tunnel back wall, which is currently unreclaimed.. It is anticipated that the volume of <br />demolished material will exceed the capacity of this area, so a hole will be excavated if necessary <br />at the base of the wall to accommodate the estimated volume of material. <br />- Culvert Removal The Road E culvert, and the Culvert which crosses Dutch Creek <br />immediately south of the Rock Tunnel will be removed from the respective streams. The culverts <br />will be removed from the site. The fill material which surrounds each culvert will be excavated <br />until a gentle slope is created at each location. <br />- Earthwork The material excavated from the culvert crossings will be <br />transported to the backwall for use as backfill material for the purpose of covering demolished <br />material and to relieve the overall back wall slope. <br />- Construct Drainages In order to accommodate the drainage from the Rock Tunnel, a <br />drainage will be constructed to convey this discharge to Dutch Creek. The approximately 700 <br />feet long drainage will traverse from just north of the current location of the Lamp House, bend to <br />the south and cross Road B, then turn west and traverse a slope to spill into Dutch Creek. The <br />channel will be armored by rock rip rap in order to accommodate the quantity, quality and <br />duration of the discharge. Department of Public Health and Environment approval is needed <br />before the discharge can be placed directly into Dutch Creek. <br />A small three hundred and fifty feet long drainage channel will be constructed on the Rock Dump <br />in order to convey runoff from the top and north side of the facility to the large swale in existence <br />on the south side of the pile. This will help to limit contributing factors to side slope erosion on <br />the north facing slope of the facility. <br />Road Work Reclamation of the roads leading to the water storage tank and to <br />the 016 ponds will be accomplished during completion of this Project. These roads will be <br />reclaimed in a manner similar to that employed on Roads E, F, G. The roads will be graded to a <br />configuration so that they have a slope of approximately 5% to the outside, any culverts will be <br />removed and the road surface will be ripped to twelve to eighteen inches on no greater than thirty <br />inch centers. <br />24 <br />