Decades into a megadrought, proponents of mothballing the 710-foot dam say now is the time to drastically rethink management of the depleted Colorado River.

Center for Biological Diversity: GRAND CANYON NATIONAL PARK, Ariz.— Federal researchers reported Wednesday that despite last fall’s eradication efforts the number of invasive smallmouth bass more than ...

Newly discovered damage to part of the dam holding back America's second-largest reservoir has people who rely on the Colorado River worried about their ability to get the water they need.

Plumbing issues at Glen Canyon Dam, which holds back the second-largest reservoir in the U.S., are causing concerns about future water delivery to southwestern states.

In a blistering letter, water officials in Arizona, California and Nevada recently took the federal government to task for failing to plan adequate measures to protect crucial Glen Canyon Dam ...

Newly discovered damage in Glen Canyon Dam would require releasing less water at low reservoir levels — a problem that increases water risks in the Southwest.

A yearlong project to reline a set of four secondary pipes inside Glen Canyon Dam is currently underway, the U.S. Bureau of Reclamation revealed on Tuesday.

The Colorado River's decline threatens hydropower at Glen Canyon Dam. Now, officials are looking at retooling the dam to deal with low water levels.

Glen Canyon Dam began its life with an explosion. Congress authorized the dam’s construction on this day in 1956, and about seven months later, then-president Dwight D. Eisenhower pressed a ...

The federal government must rapidly prepare plans to redesign Glen Canyon Dam’s plumbing to keep the Colorado River flowing through the Grand Canyon as the water levels behind the dam continue ...