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FUBEFT E,ELHhdE''i' TEL I'.1ii . ? ?—' 4E5 =Ci^ 1'10 =i=i , '_{2 12 : i, F . Cis <br /> Y <br /> from the hillside above, pushed down by a bulldozer, or below, as part of <br /> grading to achieve the post-mining contour. <br /> Also at the raw coal storage areas, large culverts contain the conveyor system <br /> which was used to transport raw coal from storage to the preparation plant. The <br /> conveyor system will be removed from the culverts and sold. The culverts <br /> themselves are probably not salable. We would like to consider severing those <br /> portions of the culverts which are above ground, so that the buried sectors <br /> simply remain in place. This would save the expense and considerable surface <br /> disturbance of digging and removal, and might allow us to complete grading at <br /> the stockpile sites much earlier than otherwise. <br /> The plan for reclamation on the roads, on which the bond calculations were <br /> based, calls for narrowing the roadway to 22' (16' running surface and 6' ditch) <br /> by means of pulling material down from the crest of the cut and hauling <br /> additional material from "borrow" areas within 1/2 mile of each segment. <br /> An alternative approach to reclamation of the roads, which we would like to <br /> discuss with you, is to use a dozer or grader to outslope the roadbed (subject to <br /> what bedrock conditions allow us to do), and install cross drainage structures in <br /> the form of frequent waterbars to the outslope and rolling dips at designated <br /> points. Material excavated from the road work would be placed on the cut side, <br /> creating a buttress, Ditches would not be retained. <br /> 'The objective would be to prevent the build-up of concentrated flows which gain <br /> in velocity and erosive effect. This reverses the present system of directing <br /> flows to the inside ditch. The ditches will fill in without regular road maintenance <br /> in any case, and so do rot make much sense for final reclamation as they would <br /> not remain functional ovEfr time. <br /> Roads, Additional Cons0derations <br /> The current plan anticipated that the 22' roadway would not be seeded. <br /> Although this is an additional cost, which is not the direction we're trying to take, <br /> achieving savings in the backfill/grading expenditures on the road would allow <br /> us to justify seeding the ontire roadbed. This seems to me to be a good means <br /> for sediment control. <br /> The current plan also salts that the culverts will remain, and the bond <br /> calculations did not include a cost for removing them. While some of these <br /> culverts would be fairly easy to remove, a number of them have been buried at <br /> an angle, with the lower ,aide very deep in the road. Digging them back out <br /> would require very extensive excavation and cause environmental damage. <br /> Removal of some very large culverts at stream crossings could create problems <br /> with erosion, and certainly with maintaining access over the road systems. <br /> 3 <br />