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<br />02126/99 11: 43 <br /> <br />'6'303 245 6933 <br /> <br />FISH & WILDLIFE <br /> <br />Ij!J002 <br /> <br />" <br /> <br />~ <br /> <br /> <br />United States Department of the Interior <br /> <br />FISH AND WILDLIFE SERVlCE <br />EcoJogiOIJ S<rvi"", <br />764 Horizon Dm.. South AnneJ. A <br />Grand Junction. Colorado 81506-3946 <br /> <br />~ <br /> <br />,:-I REPLY REFER TO : <br />ES/CO:COE <br />MS 65412 GJ <br /> <br />February 26. 1999 <br /> <br />Walter Yep. Chief of Planning Division <br />U.S. Army Corps of Engineers <br />Sacramento District <br />1325 J Street <br />Sacramento. California 95814-2922 <br /> <br />Dear Mr. Yep: <br /> <br />ThiS letter responds to your October 8. 1998. request for a Planning Aid <br />Letter concerning the Skyrocket Creek Diversion Rehabllitation. Skyrocket <br />Creek is located immediately north of the town or Ouray. Colorado. The <br />Skyrocket Creek dlversion is located at about :3.000 feet elevation and drains <br />about 0.7 square mi 1 es. Thi s 1 etter has been prepared unc,er the authority of <br />and in accordance with. the proviSions of the Fish and Wildlife Coordination <br />Act (48 Stat. 401 as amended: 16 U.S.C. 661 et seq l. <br /> <br />In 1929. Duray County rerouted Skyrocket Creek to the north, to reduce the <br />risk of debris flows into Hot Springs Park. A new channel was blasted through <br />the rock on the northern bank of the Creek. The original diversion structure <br />was constructed of wood. Since a breach in 1981. the diversion structure has <br />been replaced with earth and rock to fill in Ule natural bedrock drainage way. <br />The diversion is now topped with timbers that have been d'isplaced through <br />erosion and time, Remnants of cabling. chain 'link fencin~J and sawn timbers <br />that were part of the structure have toppled into the downstream dralnage way. <br />If the current structure is not replaced. any moderate prl:cipitation event <br />coupled with the steep slope could cause a breach in the structure. resulting <br />in dangerous conditions of fast water. mud anel debris flol~S, Water and <br />debris, if allowed to flow down the old channel. would cause severe damage to <br />downstream facilities within the town of Duray <br /> <br />The proposed diversion structure will be made of reinforced concrete and will <br />replace the current dirt and timber structure. Construction activity will <br />last 2 to 3 weeks. There will be ground and noise disturbances associated <br />