U.S. ARMY CORPS OF ENGINEERS, ATTN: CENPP-CT, 333 S.W. 1ST STREET, PORTLAND OR 97204

B -- STUDY OF FISH PASSAGE ROUTES AT LOWER COLUMBIA RIVER DAMS. SOL DACW57-CBD5-0001 DUE 050795 POC CONTRACTING OFFICER, JOAN R. COIL, (503)326-6417 This synopsis in NOT a request for proposal or bids, but a request for expression of interest and capabilites. No reimbursement will be provided for any expenses associated with this request. The Portland District, Corps of Enginers is seeking to identify experienced firms capable of carrying out studies to estimate juvenile salmonid motality and condition after passing specific passage routes at Lower Columbia River Dams. This study will include estimation of differences in the condition (including direct and delay mortality, descaling, and other injuries) of fish passing over spillways, sliceways and prototype vertical slots at Lower Columbia River projects. This proposed study would be performed in 1995 and 1996. Specific studies and locations include: Phase 1, Bonneville Dam (1995): Determine differential fish condition between fish released in spillbays with pliplips, without flip lips, and control fish released in the spillway. Phase 2, The Dalles Dam (1995): Determine defferential condition of fish passing through the spillway (selected bays) and over the energy dissipation baffles, fish passing through a prototpye verticle slot spillbay, and control fish released in the stilling basin. Testing will also include determining differential fish condition for fish released in the sluiceway (near unit one) and control fish released in the outfall of the sliceway. Phase 3, Bonneville Dam (1996): Determine differences in fish condition between fish released in the ice and trash sluiceways (both powerhouses) and control fish released in the outfall of the sluiceway. Phase 4, John Day Dam (1996): Determine differential fish condition between fish released in specific spillways and control fish released in the spillway. Testing will be in spring and summer. Requirements for the study will include methods that use marking of the treatment fish in such a manner that will allow at least 80% recovery of marked fish. Fish recovery will be selective to study fish to eliminate any potential effects on non-study fish in the system. Fish recovery should be within one hour of release. Differential fish condition and injury rate will be estimated within +-5% at the 90% confidence level. The precision is dependent on the number of fish sampled, anticipated recovery rate, and anticipated injury rates of test and control fish. Interested firms are invited to submit a resume to include company name, business size, technical capabilites and personnel capabilities. Failure to participate in this market survey will not preclude any supplier from submitting a bid or being considered during any future solicitation phase. SIC B516 (0073)

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