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<br />r , - 'if }i ~ . f IJ'1.l1 (.' , t~ , R I 2' t~ ~,t <br /> <br /> <br />~.....~~~..~ <br />If <br />'/ <br /> <br />RECEIVED <br />AUG 14 2002 <br /> <br />Update <br /> <br /> <br />Colorado Water <br />ronservalion Bow <br /> <br />Design and <br /> <br />Construction <br />The Bureau of Reclamation has the <br />responsibility for the design and con- <br />struction of Ridges Basin Dam, the <br />Durango Pumping Plant, the Ridges <br />Basin Inlet Conduit, and other fea- <br />tures associated with the Animas-La <br />Plata (ALP) Project. Designs of the <br />Ridges Basin Dam and the Durango <br />Pumping Plant are continuing and will <br />be completed in the near future, Con- <br />ceptual design of the Ridges Basin <br />Inlet Conduit has been completed. <br />(The inlet conduit is the pipeline from <br />the pwnping plant to the reservoir.) <br />Reclamation will contract with the <br />Ute Mountain Ute Tribe (UMUT) <br />and the Southern Ute Indian Tribe <br />(SUIT) for construction of the project <br />features. Much of the construction <br />work will be performed by the <br />UMUT's construction agency, the <br />Weeminuche ConstructionAuthority. <br />The SUIT, doing business as Sky Ute <br />Sand and Gravel, will supply some of <br />the construction materials for the <br />project. <br />A contract for excavation of the <br />Ridges Basin Dam Outlet Works <br /> <br />Tunnel is anticipated to be awarded <br />to Weeminuche Construction Au- <br />thority during the first half of Fiscal <br />Year2003. Construction activities will <br />commence approximately one month <br />after the contract is awarded. This <br />contract will include construction of <br />a concrete-lined tunnel approximately <br />1,400 feet long through the left abut- <br />ment of the Ridges Basin Dam. The <br />work will also include construction <br />of a gate chamber on the tunnel; an <br />intake structure and conduit at the <br />upstream end of the outlet works tun- <br />nel; and a chute and stilling basin at <br />the downstream end of the outlet <br />works tunnel. <br /> <br />Relocation of <br /> <br />Pipelines <br /> <br />Construction of the Ridges Basin <br />Dam will require relocating gas pipe- <br />lines. The relocation crosses the <br />alignment of the Ridges Basin Inlet <br />Conduit above the conduit. Since the <br />construction schedule requires relo- <br />cating the pipelines prior to installa- <br />tion of the Ridges Basin Inlet Con- <br />duit, a pipe sleeve is being installed <br />to allow for the safe installation of <br /> <br />Bureau of Reclamation <br />Western Colorado Area Office <br /> <br />,I <br /> <br />the inlet conduit in the future with- <br />out disturbing the relocated gas pipe- <br />lines, The area of disturbance of the <br />sleeve is within the limits established <br />in the Final Supplemental Environ- <br />mental Impact Statement for con- <br />struction of the Ridges Basin Inlet <br />Conduit. A contract for installing <br />the pipe sleeve was awarded to the <br />UMUT in June 2002, Prior to the start <br />of construction, a cultural resources <br />ground survey was conducted and <br />no cultural resources were identified <br />within the construction work area, <br />Several sites adjacent to the work area <br />were identified and marked to ensure <br />they would not be disturbed during <br />construction, If any cultural re- <br />sources are found below the ground <br />surface during construction, work in <br />that area will be halted until the miti~ <br />gation of the cultural resource can be <br />completed, Installation of the pipe <br />sleeve is anticipated to be completed <br />in October 2002. <br /> <br />, <br /> <br />~4.; <br /> <br />~~ <br /> <br />~ <br /> <br />-"', <br /> <br /> <br />c-' <br /> <br /> <br />, <br /> <br />---~ -----~~-~-~-~-~----- --~;----;;---~- -~----: -- -I <br />' "' < I <br />-~- ....J <br /> <br />-over- <br />