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ij <br /> I.;f C IL Y4G <br /> SIB Colorado Ave. <br /> P.O. Box 1298 <br /> G-fienWorA CO 61601 <br /> Qctlober 220 1991 <br /> Daii Mathewit; <br /> Mine Land Reclariatlon D3-viFiiori <br /> 3313 Sherman <br /> Room 215 <br /> Denver, rY) 80209 <br /> 1 TR-22 . 'Revis4! Road I)Lalar,,'Age 101-an - Haul Ro8d No. 4 <br /> r1,,', Vej­-S "'--)-N and C-2N, in: .i('a' <br /> a I aS having be�in llprop'jsedl' on Map <br /> 11-B-App. 7 Att. 2, have inr.)t been installed since the approval of <br /> -i for jliaul Read C. On investigation of the sites Selected <br /> for thp_8e culverts, we find them to be unsuitable. Further, as far <br /> t;8 improving the sediment %-,ontrol for the road, we believe that <br /> �sll,�Ilation of these cul--.rer�8 would be counterproductive . <br /> }'car- these reasons, Mid-Con-Linent requests 'to amend tne design <br /> f(,))-, Road C to indicate, that those culverts have not been <br /> inst,-illed as they were deened infeasible af'.-er on-the-ground <br /> - <br /> -eview, Mid-Continejit requests approval of Technical Revision 22 <br /> Tor thi_.L, purposc!. <br /> Thp original plan approved in 1980 was for drainage control of the <br /> f)aal road system. However, since that time Mine No. 4 has been <br /> ic;Iu, du-t-_� to diminished demand for coal , and Road C nas been <br /> designated a light use road to reflect the current usage. <br /> ,1ho haul road study, found in Vol . 3 , App. 11-b-7 Att. 2, page 13 , <br /> notes that "additional culverts have not been placed [on Road C) <br /> 4ue to ste�:.,p terrain, poorly vegetated slopes and minor tributary <br /> drajnacjw�; upstreat"I. 11 <br /> it- says. that two additional culverts were installed, the first at <br /> Station 78+80 [designated Culvert C-IN] 0which discharges into a <br /> 15rge ravine', and the second at station 136+00 (designated Culvert <br /> Mid.--Continent Resources TR-22 <br /> 10/91 <br />