The Chief Joseph Hatchery is scheduled for completion in May and should be rearing chinook salmon in July.

The $49 million facility near Chief Joseph Dam will, by 2015, raise 2.9 million salmon a year to help replace the fisheries lost after the construction of Grand Coulee and Chief Joseph dams, which halted the upstream migrations of salmon.

It will employ 11 people once it’s operational. Curren...