Official gages only

Lake levels, from the agencies that measure them

BrimGauge has 18 U.S. lake and reservoir pages built on data from USGS, the Bureau of Reclamation, and the Army Corps of Engineers. Each lake uses one official datum. Lakes without a current official series don't get a page.

Browse by state

Arizona

Arkansas

Missouri

Nevada

North Carolina

South Carolina

Virginia

Biggest moves this week

Largest 7-day elevation changes
LakeStateLevel7-dayReading
Shasta LakeCalifornia977.24 ft−2.25 ftOct 16, 2026
Folsom LakeCalifornia402.89 ft−2.19 ftOct 16, 2026
Lake PowellArizona3,520.02 ft+1.05 ftOct 16, 2026
Elephant Butte ReservoirNew Mexico4,296.00 ft+1.05 ftOct 16, 2026
Lake AllatoonaGeorgia835.01 ft−0.67 ftOct 17, 2026
Kerr LakeVirginia288.33 ft+0.59 ftOct 17, 2026

How the numbers are chosen

A lake page is published only when an official series exists, a reading came in within the last 7 days, the history covers at least a year, and the datum is named. Full-pool differences use the pool elevation on the same datum.

Read the full methodology.