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324 <br />3.9.2 BACKFILL AND GRADING -UPPER ROAD <br />• An extension of the road on the valley bottom was constructed up the side of the canyon to <br />access the coal outcrop. This portion of the road will be reclaimed utilizing a track mounted <br />backhoe, bulldozer, and other necessary equipment. Material will be excavated from the berm <br />and the area immediately downslope of the berm and placed on the road near the toe of the cut <br />slopes to eliminate the road and create a transitional slope between the creek bottom and the <br />steeper natural slopes. As the material is placed at the toe, the dozer will grade it into two foot <br />deep lifts and compact the material. In those areas where ephemeral drainages cross the road, <br />the material will be excavated with a track mounted back hoe and moved into place with the <br />dozer to reconfigure the slope. <br />Drainages will then be reestablished and culverts removed. The premining drainages <br />crossing the road will be excavated to the original channel. Excavation to the original channel <br />which probably consisted of rock outcrop in these steep channels and lining the channel reaches <br />above the outcrop with riprap will provide stable channels. <br />In the area along the road just below the mine site, steep slopes are present. Grand Valley <br />• will utilize a safety bench on the reclaimed slope to catch the minor sloughage that will occur <br />after reclamation. The bench will be approximately ten feet wide and will be graded to leave <br />small depressions that will enhance moisture retention so that vegetation will have adequate <br />moisture. The area is shown on Figure 3.1.8 . No materia{ will be excavated from the berm or <br />the slope immediately below the berm in this narrowest portion of the road. Material to fill <br />these steeper areas will be excavated from the switchback just below the steep area. This <br />material will be moved into place with a dozer. To ensure that the configuration proposed would <br />create a material balance, the volume of cut and fill was calculated. The tabulated calculation is <br />presented as Table 3.9-2 and shows that there will be a total of nearly 34,000 bank cubic yards <br />of material with a slight deficit of 235 cubic yards of material. The deficit is not significant. <br /> <br />M~ Volume I l2 - l8 - 96 <br />