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3.23 <br />Currently, the edges of the road are revegetated and the road bed is in excellent shape. <br />• Reclamation of the lower road is shown on Fgure 3.1-10. Grand Valley will comply with the BLM <br />Area Manager s letter of December 3, 1996 regarding reclamation of the lower portion of the <br />road ,See Appendix L in Volume V. Specific procedures to comply with the BLM concerns are: <br />a. The road profile will be left in place . <br />b. Both sides of the road will be revegetated leaving an eight foot wide running surface in <br />the center of the road profile. The sides of the road will be chisel plowed and disk <br />harrowed to a depth of six inches to create a seed bed. The sides of the road will then be <br />drill seeded with the Big Sagebrush Shrubland seed mixture shown in Table 3.4-1 b. <br />(Although the sides of the road will be revegetated, this area is not shown on Fgure <br />3.1-10 since strips along the road are so thin.) <br />c. Culverts will be removed and low water crossings (fords) shall be cut to the bottom of the <br />streambed. No fill material will be placed into the drainage. Excess cut material <br />• remaining from the ramp construction will be used to backfill the mine site and will not be <br />left in place at the fords. The edges of the ramps to the fords will be revegetated. <br />d. Additional protection for the fords will be provided to enhance the stability of the running <br />surface by salvaging the gravel on the existing roadbed that will be removed and use it to <br />create a new roadbase on the fords and the slopes created to access the fords. <br />Additional erosion protection for the streambed will be provided by installing rip•rap keys <br />at the upstream and downstream edges of the ford. The keys will be a two foot wide by <br />two foot deep trench filled with one foot top size rip -rap. These rip rap keys will ensure <br />that the fords will not be washed out during high flow . <br />The bridge spanning East Salt Creek on Grand Valley's private property near Highway 139 <br />will not be removed. This bridge will protect the streambed yet allow access to the hay fields <br />located east of East Salt Creek. The bridge has been designed to safely pass the flow from a <br />100 year storm event, see Appendix M. Removing the bridge and regrading the area to install a <br />. dry ford would once again be environmentally detrimental compared to leaving the bridge and <br />approaches intact. <br />MU Volwne 1 12 - 18 - 96 <br />