1994-01-01_PERMIT FILE - C1981017 (5)

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steep; better soil material has developed; substantial vegetation exists and water can be passed to the f i l l slope without the threat of massive erosion and failure. In these areas, the proposed reclamation is shown on Exhibit 4, Cross - Section B. As shown, the entire road surface is graded to the outside edge, thus re- establishing original drainage patterns. All culverts could be removed or plugged for this case. If a threat of concentrated flow on the flat surface w i l l likely rut and interfere with access, Plan 1 will be employed. The following items are guidelines for the entire road reclamation process. Using these guidelines, it is proposed that the roads are reclaimed after field verification on a case by case basis. 1) In both reclamation cases, road access is maintained although the entire road surface will be loosened, seeded and mulched. 2) Water must be delivered across the surface to the f i l l slope in a stable way in order to minimize erosion and future maintenance. For Plan 1, the inside ditch should outlet to low water crossings wherever possible. Culverts would be removed unless the outlet was i n s t a l l e d so far down the fill slope as to make their removal impractical. In this case, they will be plugged. In some major drainage crossings, it is impossible to remove the huge culverts and maintain access. In these areas, all reasonable steps will be taken to make the crossing as stable as possible. For Plan 2, low water crossings will also be employed as the preferred method of water transfer, but they will be less frequent since water is being delivered across the road surface over its entire length. Low water crossings will be used for uphill drainage crossings. As in Plan 1, culverts can be removed or plugged and major drainage crossings must remain intact. 3) In November of 1983, a geotechnical assessment was done of the 16