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Show Unit conditions the flow " between the diversion and the dam would he significantly improved for fishery purposes. ( 9) The proposed plan contains provision for 3,000 acre- feet of stored water in Strawberry Reservoir, plus any of the unused portion of the 3,500- acre- foot storage allocation for Rock Creek ( to maintain 25 c. f. s. minimum at the entrance to Indian lands), to be made available annually for release to the Strawberry River below Soldier Creek Dam. This amount is expected to allow maintenance of a minimum flow at the Soldier Creek Dam of approximately k to 5 c. f. s. during the nonirrigaticn season. ( 10) A fish screen would be installed at the inlet tc the Syar Tunnel to prevent loss of fish. ( 11) At the west portal of the existing Strawberry Tunnel minimum flows in Sixth Water Creek would be maintained at levels comparable to natural flows occurring prior to construction of the tunnel. Exact flows would be determined by later studies. Such flows would be a fishery improvement. The Bureau of Sport Fisheries and Wildlife has recommended the following annual flow pattern: a minimum flow of 7 c. f. s. from November 1 to April 30 and lU c. f. s. from May 1 to October 31. This recommendation is not being considered since the presently deteriorating condition of the tunnel will prevent such regulations and the tunnel could be plugged by a structural failure. ( 12) Under Section 8 of the Colorado River Storage Project Act funds amounting to at least $^ 2,800 would be made available to rehabilitate the portion of Sixth Water Creek upstream from the proposed Sixth Water Reservoir. The work would consist of 2,000 feet of bank stabilization; 5 miles of streambank revegetation; and k miles of channel improvement, including spawning bed construction, if feasible. The work would be planned by the Forest Service in cooperation with the State Division of Wildlife Resources. ( 13) A minimum bypass of 15 c. f. s. or the full flow of Sixth Water Creek, whichever would be instantaneously smaller, would be maintained at Sixth Water Dam for fish conservation. ( ik) The inlet of the aqueduct leading to the Dyne Powerplant from Sixth Water Reservoir would be designed to prevent entry and loss of fish. Some fish would be expected to migrate into the reservoir from the improved upstream section of Sixth Water Creek. ( 15) The enlarged Mona Reservoir would have an inactive storage pool of T, T80 acre- feet, including 6, U00 acre- feet for fish 446 |
