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have been bo.Qsting flows to .speed-salmo.n migratio.ns. A specified amounto.f water is held behind upriver sto.rage dams during winter and then re- leased in the spring. . Our salman strate- gy substantially in-. creases the amo.unt of water stored for these . annual salmon flows. Except in the lowest , water years, we want to. achieve a Snake River speed that is equivalent to. a flaw o.f at least 85,000 cubic' feet per secand during.the rlgratio.n periad., To. reach this speed, reservo.irs wo.uld be lawered behind Jahn Day Dam and the faur dams an the lawer Snake River to. the lo.west level at whichnavigatian locks ~nd irriga- . tian pumps can still o.perate. The Carps of Engineers would provide additianal water !to the Snake fro.m Dworshak Dam, which is located upstream on the North Fork Clear- water River, and Idaho Pawer Company and the Bureau o.f Reclamation would provide water framthe upper Snake River,. irrigatio.n and ather . diversio.nso.f-water. It calls far impro.ved barg- ing afjuvenile fish past . the dams. And it seeks to. co.ntral predato.rs, particularly squa'Yfish. Same ~tio.ns in o.ur strategy can begin immediately. Other measures needadditio.n- al study befare they can begin. Immediate flow measures R ebu.ilding " salmon rUhs .... .. is a complex process because salmon lead ~.omplex hves. ' . I. l. Dams changed the , Co.lumbia and Snake from fast-flawing rivers to. a series o.f slaw-moving reservo.irs. . Yaung salman, whase biolagy is attuned.to. a .s"'[ift transitidn fro~ freshwater to. saltwater during the spring and early summer, need to. mo.vequick1y to. the o.cean. Befo.re the dams, they did. Our plan calls far many actians to. '. improve the surVival of salmon during their migratio.n. # This IS nat a new idea. Since aur first fish and wildlife program was adapted, the US. Bureau of Reclamation and the U.S. Army Carps af Engineers,whichaperate the feder- . al dams an tl;1.e Snake and Co.lumbia rivers , ' . ' 18 1861 Idaho gold rush begins, increasing ship traffic on the Columbia and Snake rivers.