In this March 5, 2008, file photo, water flows from the number one and two jet tubes as seen from atop the Glen Canyon Dam in Page, Ariz. The federal government is committing another 20 years to the aging and embattled Glen Canyon Dam it calls crucial to water and power supplies in the West, but that critics say is unstable and should be ripped down. U.S. Interior Secretary Sally Jewell signed documents at a regional water conference Thursday, Dec. 15, 2016, in Las Vegas to have the federal Bureau of Reclamation continue to manage Glen Canyon Dam through 2036. (AP Photo/Matt York, File)