Biological evaluation of the prototype gatewell lift-tank system at Lower Granite Dam, 1994
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A proposed drawdown of Lower Granite Reservoir (Fig. 1) would reduce turbine intake gatewell water levels at the dam to an extent that would prevent normal egress of migrant salmonid smolts to the fingerling bypass collection gallery, as described by Matthews et al. (1977) (COE 1994a). This could result in large numbers of fish stranded in the gatewells (COE 1993). Contract no. E86940120
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2026-07-10
