Over the past five years, the U.S. Army Corps of Engineers has been working on a number of structural upgrades at Lower Snake and Columbia river dams, all designed to make passage at the dams safer for salmon and steelhead. Those projects are nearly finished – the last will be new fish friendly turbines at McNary Dam in 2025 followed by new turbines at John Day Dam – and the Corps now plans to concentrate on operational improvements at the dams, while ending the more expensive construction.