Reservoir Levels
Glen Canyon Dam
Lake Powell
ft elevation
% live capacity
Full pool: 3,700 ft
Watch: 3,575 ft
Critical: 3,525 ft
Source: USGS site 09379900 · Parameter 62614 (WSE)
Hoover Dam
Lake Mead
ft elevation
% capacity
Full pool: 1,229 ft
Watch: 1,075 ft
Critical: 1,025 ft
Source: USBR RISE API · Loading…
Streamflow Gauges — USGS Real-Time
System Overview
Total System Storage
—
of 58.5 maf total capacity
System % Full
—
combined Powell + Mead
Lee Ferry Flow
—
cfs · compact delivery point
Yuma Flow
—
cfs · near Mexico border
Status Key
Healthy — >50% capacity
Watch — 25–50% capacity
Critical — <25% capacity
Threshold elevations per USBR Interim Guidelines (2007) & 2024 SEIS ROD