A bit cynical about a lot of what is in reports. This comes out a report on fish in the Nisqually. "Upstream from the two reservoirs, LaGrande and Alder, fish are resident rather than anadromousdue to the blockage of the river by Alder Dam."
But reading in the history of the dams I find this statement ". They hold back Alder Reservoir and the inaccessible two-mile long LaGrande Reservoir. Before the construction of the dams, a natural fish barrier prevented anadromous fish from ascending the Nisqually above what is now La Grande Reservoir.[5]"
The reference does not work but that brings up a lot of questions, including why the tribe is now trucking fish above the dams and who is paying for it.