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Colorado River Reservoir Levels
System storage across the seven tracked reservoirs — updated daily from Bureau of Reclamation gauges.
- The seven Colorado River system reservoirs tracked here hold 18.69 million acre-feet as of — 32.1% of their combined 58.15 million acre-foot capacity.
- Lake Mead (27.1% full, 1,041.38 ft) and Lake Powell (23.3% full, 3,523.15 ft) together hold 12.51 million acre-feet — 25.3% of their combined capacity.
- System storage has changed −3.86 million acre-feet over the past year.
- For calendar year 2026, a Level 1 Shortage Condition (2007 Interim Guidelines Section 2.D.1.a) plus DCP contributions govern Lake Mead operations — see shortage tiers.
71.7%
6,013.26 ft · 2,687,680 AF
wk -0.64 ft · yr -13.28 ft
All seven, side by side
| Reservoir | % full | Elevation (ft) | Storage (AF) | 1-yr change | Record low |
|---|---|---|---|---|---|
| Lake Mead | 27.1% | 1,041.38 | 7,072,990 | -13.25 ft | 1,040.58 ft (2022) |
| Lake Powell | 23.3% | 3,523.15 | 5,439,050 | -33.80 ft | 3,519.92 ft (2023) |
| Lake Mohave | 95.4% | 644.01 | 1,787,870 | +1.49 ft | 622.10 ft (1953) |
| Lake Havasu | 95.1% | 448.57 | 542,223 | +0.51 ft | 440.65 ft (1950) |
| Flaming Gorge Reservoir | 71.7% | 6,013.26 | 2,687,680 | -13.28 ft | 5,966.89 ft (1970) |
| Blue Mesa Reservoir | 29.9% | 7,437.92 | 247,417 | -46.23 ft | 7,427.71 ft (1984) |
| Navajo Reservoir | 53.6% | 6,024.78 | 909,842 | -10.48 ft | 5,995.66 ft (2004) |
System storage data
Download the daily combined-storage CSV — total storage across all seven reservoirs for every day on which all seven report, from 1966 to present. Columns: date, total_storage_af, pct_of_combined_capacity.
Reservoir-level context: Lake Mead and Lake Powell carry the storage; the rest are regulating and upper-basin units. Operating rules: current shortage tiers · post-2026 process.
Combined capacity here is the sum of the capacity bases used on each reservoir page (sources on the about page). Reclamation's own "system storage" figures may use different reservoir sets and bases, so percentages can differ slightly.