Better-than-expected performance of spill deflectors constructed last
year at Ice Harbor and John Day dams has encouraged salmon managers to
propose similar gas abatement measures at other dams on the mainstem Columbia
and Snake rivers.
But hydro operators expressed concern that the proposal means more spill
and more loss of power generation for the region.
The issue was discussed at Thursday’s (Sept.10) meeting of the Implementation
Team, a policy group of the National Marine …