More than a mile long, the Grand Coulee Dam is the largest concrete structure in the U.S. In the fall of 2011, dam operators agreed to open the spillway just for American Experience. "It was very ...

NorthWestern Energy is continuing work on a project to upgrade the spillway of the Black Eagle Dam on the Missouri River.

A spillway opening can be triggered to keep river flow below 1.25 million cubic feet per second, which the Corps says tends to correlate to 17 feet on the Carrolton gauge. National Weather Service ...

The project has recently received a green light from the state cabinet. Initiatives to float a global tender are expected ...

The eerie, swirling vortex of Napa County’s Lake Berryessa, on display this year for the first time since 2019, could be visible for another week. Called the Morning Glory spillway, or “glory hole,” ...

“This is a complete spillway replacement project,” South Dakota Game, Fish, & Parks Regional Supervisor Kip Rounds said. The project was deemed necessary after flooding damaged the structure ...