8128

• UCREFRP Catalog Number: 8128
• Author: U.S. Bureau of Reclamation.
• Title: Operation of Glen Canyon Dam\
• USFW Year: 1995.
• Copyright Material: NO

Purpose of and Need for Action
Some impacts would occur outside of the immediate geographic area and
were also evaluated. For example, power generated at Glen Canyon
Dam is marketed in Wyoming, Utah, Colorado, Arizona, Nevada, and
New Mexico.
Glen Canyon Dam stores and releases water from Lake Powell, which has
an active capacity of about 24.3 million acre-feet (maf). Water can be
released from the dam through the powerplant, the outlet works, or
spillways (figure 2). Although the combined release capacity of the
facilities is 256,000 cfs, the maximum combined release from Glen Canyon
Dam is not expected to exceed a probable maximum flood of 180,000 cfs.
Glen Canyon Dam EIS Summary 5
Figure 2. Photograph of Glen Canyon Dam and Powerplant showing water
release capacities of the powerplant, outlet works, and spillways.