The Pacific lamprey can be seen suctioned to the fish viewing windows at the Bonneville Dam visitors center in the summer months, particularly around July. Those windows at the Washington side ...

Water managers at Bonneville say spill is important. But they argue it carries risks, and that bypass options the dam offers out-migrating fish are often actually safer. To power managers ...

At 12 this morning, the U.S. Army Corps of Engineers opened Bonneville Dam’s spillway gates, marking the beginning of seasonal water releases known as “spill.” ...