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Chapter 11 <br /> In recent years, winter access has been maintained to Mine Portals #1 and #2, but has <br /> not been maintained to Mine Portals #3, #4 and #5, given their current idle status. <br /> Other than snow removal, maintenance of the roads is generally done after snowmelt <br /> and before snowfall. <br /> Spring/Summer Maintenance. <br /> Road maintenance after the snow melts will include repair of ditches, clean-out and <br /> repair of culverts and cross drainage structures, grading of the road, re-establishment <br /> of water bars and berms, repair of rilling and erosion channels. <br /> After storm events, road ditches and culverts will be inspected to identify areas of storm <br /> damage, filled-in ditches or plugged culverts. Repair and clean-out will be done as <br /> expeditiously as possible. <br /> Material cleaned from ditches, catchment basins, culvert installation repair, and B.A.T. <br /> ponds on the roads will be used as a growth medium for vegetation, for berm material, <br /> or to cover trash. <br /> Culverts. <br /> Culverts will be inspected to determine whether repair or replacment is necessary. <br /> Replacement of culverts will be judged necessary when the culvert has been damaged <br /> so as to fail to pass flows, or when the culvert has been worn and rusted to the point <br /> that leakage endangers the integrity of the road. On light use roads, rolling dips may <br /> be installed in place of rusted culverts. <br /> Ditches. <br /> During the spring, and as necessary after storm events, the ditches will be dragged to <br /> clean them of debris and sediment. <br /> Catchment Basins. <br /> Maintenance of the basins will usually be done with a trackhoe and/or front end loader. <br /> Sediment will be cleaned from the basins on an as necessary basis. <br /> B.A.T. Ponds - Off Road. <br /> For maintenance of ponds which are in areas difficult to access, such as below the <br /> downslopes of Road D, 110+00 to 100+00, a trackhoe will be used in preference to <br /> equipment such as drag I i ne/trucks, which would require building a road. Sediment <br /> removed from the ponds will be deposited at the site, vegetated and mulched. <br /> 19 <br /> Revised 6/92 <br />