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Dillon Reservoir water level today

Storage at Dillon Reservoir in the Colorado River basin (Division 5), from Colorado DWR's daily reading.

Figures as of · Advisory only — confirm water rights with Colorado DWR.

Storage164,566 AFof 257,304 acre-feet capacityColorado DWR · Oct 3, 2026
Full64%of recorded capacityColorado DWR · Oct 3, 2026
7-day change−1,853 AFover the 7 days to the readingColorado DWR · Oct 3, 2026

About Dillon Reservoir

Dillon Reservoir is one of the 10 reservoirs BasinMind follows in the Colorado River basin, Division 5 of Colorado's seven water divisions. BasinMind's registry lists its operator as Denver Water. Its recorded capacity is 257,304 acre-feet, the second-largest of the 10 and 20% of the capacity BasinMind tracks in the division.

On October 3, 2026 it held 164,566 acre-feet, 64% of that capacity, with room for about 92,738 acre-feet more. Over the seven days before, storage fell by 1,853 acre-feet. Taken together, the division's reservoirs with a current reading stood at 45% of capacity (554,790 of 1,236,931 acre-feet).

Daily storage comes from the Colorado Division of Water Resources, DWR station DILRESCO; the official record is on that station's page. The nearest stream gauge BasinMind reads is Blue River below Dillon, about 1 miles away in a straight line.

An acre-foot is the water that would cover one acre a foot deep, about 325,851 gallons; percent full compares storage with recorded capacity, not with what is normal for the date (cfs and acre-feet).

Other reservoirs in the Colorado River basin

Stream gauges in the Colorado River basin

More for this basin

Sources

  1. Colorado Division of Water Resources — station DILRESCO
  2. Colorado's Decision Support Systems (CDSS) — telemetry
  3. Bureau of Reclamation — Upper Colorado hydrodata