MARION COUNTY, Iowa – More work on the Red Rock Dam means another road closure. Starting at 7:00 a.m. Monday and lasting through 5:00 p.m. Wednesday, the U.S. Army Corps of Engineers Rock Island ...

In 2020, a $400 million hydroelectric plant came online in Pella at the Army Corps of Engineers' Red Rock Dam. It was projected to generate enough energy to power 18,000 homes annually.