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biological study to evaluate the effectiveness of the passage facility was <br />estimated to cost about $210,000. Therefore, the estimated cost of the <br />project was estimated at $1,000,000 for design, construction, and biological <br />evaluation. This project is presently on hold because it is being reevaluated <br />relative to the biological merit and overall recovery value that will be <br />gained by restoring the two target fishes to the Gunnison River above the <br />diversion dam. <br />Other Instream Barriers <br />Funding for passage work has been obtained for other potential sites in <br />the upper basin. Approximately $120,000 is available for determining the <br />feasibility of passage around or through Taylor Draw Dam on the White River <br />near Rangely, Colorado, conservation measures incorporated as a part of the <br />Taylor Draw Reservoir Dam biological opinion. Taylor Draw is a 60-foot high <br />dam that effectively obstructs upstream movement of fishes. Adult Colorado <br />squawfish occupy river reaches up- and downstream of the present dam site. <br />In the present range of these four endangered fishes, there are other <br />sites in the upper basin where instream barriers may pose potential <br />obstructions to their upstream movement. Tusher Wash on the Green River <br />upstream of Green River, Utah and the Grand Valley Diversion on the Colorado <br />River near Palisade, Colorado are low-head diversion structures that may <br />obstruct upstream movement during low flows. All life stages of Colorado <br />squawfish and humpback chub, plus adult razorback sucker occupy river reaches <br />up- and downstream of Tusher Wash Diversion. Only adult Colorado squawfish <br />are known to recently occupy the river reach immediately up- and downstream of <br />the Grand Valley Diversion. The Price Stub Diversion Dam three miles upstream <br />of the Grand Valley Diversion is a formidable barrier to upstream movement for <br />fishes at all flows. Adult. Colorado squawfish have been recently {summer of <br />5