A rash of dam news from the Columbia Basin Bulletin
Shad don't mind the dams.
Non-native American shad are experiencing a revival of sorts to the Columbia River basin, it would appear, with counts at Bonneville Dam fish ladders spiking recently.
Corps Moves Ahead To Remove 1930s Sandy River Dam
The U.S. Corps of Engineers is set to reestablish the long-clogged main channel of northwest Oregon’s Sandy River near its confluence with the Columbia River, thus restoring historic conditions that are expected to provide more habitat benefits for protected salmon and steelhead as well as other fish and wildlife species.
Certain Cumulative Environmental Damage Caused By Small Dams Is Worse Than Larger Dams
Researchers conclude in a new report that a global push for small hydropower projects, supported by various nations and also the Kyoto Protocol to reduce greenhouse gas emissions, may cause unanticipated and potentially significant losses of habitat and biodiversity.