A drawdown of Lake Koocanusa behind Libby Dam will be mitigated by another
water-for-power swap with British Columbia Hydro.
Michael Shea, project manager at Libby Dam, said Thursday that the swap
has been approved by federal river operators. “It looks to me that instead
of a 20-foot drawdown well see a 10-foot drawdown and we will be discharging
about 15,000 cfs through August,” Shea said.
In the past couple of years, 20-foot drawdowns that can be requested
by the National Marine …