Included in that study is the Morganza Spillway on the river's west bank. The precautions announced Monday include patrolling levees twice weekly until levels drop below 11 feet at Carrollton.

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 ...

HARRISBURG, S.D. (KELO) — The spillway replacement project at the Lake Alvin Recreation Area south of Sioux Falls is nearing its completion. It’s a case of out with the old, in with the new at ...

The size of the void at the top of the spillway is only an estimate ... causing the reservoir level to drop faster than expected. The DEP has been working with the authority on the issue, an ...