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<br />o 0 lJ'l 38 <br /> <br /> <br />United States Department of the Interior <br /> <br />WCG. TStrohfUC-606 <br />ENV-7.00 <br /> <br />SEP 1 B 2llDl <br /> <br />RECEIVED <br />SfP 2 0 2001 <br />C"'O"'do W t <br />a or ClXIservarlon HO:)rrj <br /> <br />BUREAU OF RECL\.MATION <br />Upper Colorado R~glOmj Office <br />125 South Suee Streer, Room G I 07 <br />S~( Lake Cicy. Utah 84J38-1102 <br /> <br />IN REPLY REFER TO. <br /> <br />Subject: <br /> <br />Final Environmental Assessment and Finding of No Significant Impact for the Morrow <br />Point Cimarron River Dredging Project <br /> <br />Dear Agency. Organization or Interested Pany: <br /> <br />Enclosed is a Final Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) <br />prepared by the Bureau of Reclamation. The EA and FONS! complete an environmental review of a <br />proposal to remove approximately 11,000 cubic yards of gravel deposited in the upper end of Crystal <br />Reservoir at the confluence of the Gunnison and Cimarron Rivers, near Montrose, Colorado. <br /> <br />Over the years, a series of high flow events in the Cimarron River. which !lows into Crystal Reservoir, <br />moved large quantities of gravel and other materials from the Cimarron River and deposited it at the <br />contluence with the Gunnison River (upper end of Crystal Reservoir). The deposited material created a <br />backwater pool in the Morrow Point Powerplant tailrace resulting in losses in hydropower generation <br />efficiencies at Morrow Point Powerplant and the ability to dewater the spillway stilling basin. <br /> <br />Removing the gravel will lower the water elevation in the Morrow Point Powerplallltailrace and improve <br />hydropower generating efficiency by restoring the tailrace and river channel to its original post-dam <br />construction elevation. <br /> <br />The EA evaluated no action and proposed action alternatives. Reclamation has selected the proposed <br />action and dredging activities are scheduled to begin October 1,200 I. If you have any questions <br />regarding the dredging project, please feel free to contact Donald Phillips at 970-240-6300 or Terence <br />Stroh at 970-248-0608. <br /> <br />Sincerely, <br /> <br />J2L4~ <br /> <br />Arlo H. Allen <br />Manager, Power Office <br /> <br />Enclosure <br />