Navajo Reservoir Water Level
On the San Juan River, a Colorado River tributary. Navajo Reservoir supplies the Navajo Indian Irrigation Project and the San Juan-Chama diversion to the Rio Grande.
USBR daily reading for Oct 24, 2026
- PERCENT FULL
- 62.3%
- 7-DAY CHANGE
- +10.9 pts
- ELEVATION
- n/a
- ACRE-FEET
- 1.06M
- of 1.70M capacity
- GALLONS
- 344.27B
- of 552.64B
Trend
- 7 days
- +10.9 pts
- vs. the reading a week earlier
- 1 year
- +10.6 pts
- vs. end of Sep 2025 (51.7%)
- 10-year low
- 47.6%
- end of Aug 2026
- 10-year high
- 94.2%
- end of Apr 2017
Yearly figures and the high/low compare end-of-month storage from Reclamation's monthly series with the latest daily reading. This site does not project future levels; for official 24-month projections see Reclamation's 24-Month Study. How each figure is derived is explained in the FAQ.
10-Year Historical Trend
End-of-month storage as a percent of capacity. Source: U.S. Bureau of Reclamation. Dashed lines are this site's warning (50%) and critical (30%) marks.
About Navajo Reservoir
Navajo Reservoir is on the San Juan River in NM/CO. Reclamation's capacity figure for it is 1,696,000 acre-feet (live capacity), about 552.64B gallons.
On the San Juan River, a Colorado River tributary. Navajo Reservoir supplies the Navajo Indian Irrigation Project and the San Juan-Chama diversion to the Rio Grande.
As of Oct 24, 2026, the reservoir held 1,056,517 acre-feet, 62.3% of capacity, up 10.9 pts from the reading seven days earlier. Storage figures are U.S. Bureau of Reclamation daily readings; recent values are provisional and may be revised.
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Every Monday: Navajo Reservoir and the rest of the system, with the week's change. One email a week, unsubscribe any time.