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<br />USDA Forest Service FS-7700-41 (10/73) <br />• 9.4) Replace fills and portions of fills lost and/or which have settled below the original grade and cross section. <br />9.5) Clean and shape drainage ditches, catch basins, and the inlets and outlets of culverts. Keep drainage channels, ditches, and culverts <br />clear of debris and functioning as intended, <br />9.6) Roadside ditches shall not be excavated to a depth greater than two (2) feet below the roadbed grade nor below the culvert inlet <br />elevation. Typical depth of roadside drainage ditches below roadbed is one (1) foot. Existing ditch dikes shall be restored, reshaped, and <br />compacted as needed for effective drainage through culverts. <br />9.7) Grade dips and water bars shall be maintained so as to be of sufficient depth and width to adequately drain the roadway. In no case <br />shall they be bladed flat or filled in. The lower end of grade dips and water bars shall be maintained to adequately drain away from the <br />roadway. <br />9.8) The permittee shall take all practical precautions to minimize soil erosion and prevent damage to any watercourse. <br />9.9) Repair or replace fences, cattle guards, culverts, bridges, signs, and other road structures that are damaged clue to permittee's <br />activities. <br />9.10) In general the roadway dad shoulder shall be shaped so that the centerline is crowned and a traverse slope of approximately two (2) <br />percent is attained toward each shoulder. <br />9.11) Blade and shape surface and shoulder to maintain the original cross-section and provide a suitable riding surface. Earth and debris <br />from side ditches, slides, or other sources shall not be left on road or mixed into the surface. Gravel or other surfacing material shall not <br />be bladed off the surfaced width. <br />9.12) Material larger than three (3) inches shall be considered oversized and shall be removed from the road surface so that there will be <br />no berm or ridge on the completed road surface. All berms, either new or existing, shall be removed from shoulders to the nlaximurn <br />• extent possible. Only short lengths of berms will be permitted to remain on roadways i.e., not to exceed 12 feet where protruding stcmips <br />at the road shoulder or culvert end sections prohibit removal. <br />9.13) No oversized material, which protrudes above roadway elevation, shall be left on the shoulder or edge of the ruadwiiy. <br />9.14) The road will be graded, using a road grader, a minimum of two (2) times per year, spring and fall, in addition to any <br />maintenance preformed by the county road crew. The fast pass by the grader will start at the outside shoulder toward the ditch line. <br />On rutted roads, a preliminary pass will be needed down the middle of the road to cut tuts prior to making usual passes. <br />9.15) It is recommended that one laborer work with each grader used on road maintenance. Tine laborer should work directly behind each <br />grader with the responsibility to remove rocks from the ditches, remove any rocks over three (3) inches remaining on the roadway, fill <br />holes made when rocks are removed, and remove fallen trees so they are outside the cleating lit-nits. <br />9.16) Existing lead-in ditches and catch basins on all culverts shall be cleared of all material to provide an open water flow. The <br />discharge end of the culverts shall be cleared of material to effectively disperse the flow of water. <br />9.17) Road maintenance will not generally be permitted to exceed one (1) mile intervals at one time. Berms of material caused by road <br />maintenance operations will be removed from the roadway prior to the end of each day's work and not left in place over night, over <br />weekends, or holidays unless unfavorable weather or breakdowns prevent removal (see signing). <br />9.18) Maintenance of back slopes will not normally be required unless sloughing or caving has occurred. The back slope shall not be <br />undercut when pulling the ditches. <br />9.19) The area immediately before and after cattle guards shall be bladed in such a manner as to effect smooth transition when passing <br />from roadway over cattle guard and back to roadway. Back drag excess material and grade away from cattle guards to till voids and <br />ensure cattle guards are not tilled with material from road surface. Surface material that is deposited in cattle guards by maintenance <br />operations must be removed and mixed back into the roadway. <br />• <br />Microsoft Word 2000