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II-B-7 Aft. 2 <br /> UPDATE <br /> Morrison-Knudsen Haul Road Drainage Plan <br /> Certain of the culverts proposed by MK have not been installed <br /> due to actual site conditions, including terrain and erosive soils, <br /> which would have created unacceptable erosion of downslopes. <br /> Culverts not proposed in the MK Study have been installed, <br /> or are proposed after consideration of actual site conditions. <br /> MK MCRICSC <br /> Not installed Installed/Proposed <br /> Road B Road B <br /> B-1 N, B-2N B-4 at 30+00 <br /> Road C Road C <br /> C-1 N, C-2N C-3A at 50+00, <br /> C-313 at 50+00 <br /> Road D Road D <br /> D-1 N D-2N at 53+00 <br /> Road E Road E <br /> E-2A at 11+00 <br /> Road F Road F <br /> Rolling dip as replacement for F-3N <br /> F-2A (double culverts) at 83+00 <br /> Road G Low water crossing as replacement for G-27 <br /> Other <br /> E-1 removed during <br /> construction of the tunnel <br /> yard area. <br /> ii <br />