Water crests a dam near the Roy B. Inks Bridge over the Llano River in Llano, Texas.
Water spills over a small dam in City Park, Siloam Springs, Arkansas.
The Roy B. Inks Bridge crosses the Llano River in Llano, Texas.
The Llano River flows over a small dam in Llano, Texas.
Detail of the dam that impounds North Texas’ Lake Lavon.
A dam forms a waterfall along the West Prong of the Little Pigeon River in Pigeon Forge, Tennessee.
The expansive dam at Oklahoma’s Broken Bow Lake near Beavers Bend State Park.
Detail of the steel supports of power pylons at Hoover Dam on the Nevada/Arizona border.
The Lake Mead side of Hoover Dam, showing the 395-foot-tall intake towers that supply the electricity-generating turbines inside the structure with water.
The Mike O’Callaghan–Pat Tillman Memorial Bridge, spanning the Colorado River and connecting Nevada and Arizona, as seen from top of Hoover Dam.