Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC). Fill % uses design capacity from the National Inventory of Dams where available; a few sites without a match fall back to the 5-year maximum.

Major reservoirs — data pending

⏳

MOON LAKE RESERVOIR NEAR MOUNTAIN HOME, UT — data sourcing in progress

Storage is monitored by the US Geological Survey (USGS NWIS), but the live feed is currently stale — we are working to restore it. Known capacities: MOON LAKE RESERVOIR NEAR MOUNTAIN HOME, UT (0.1 km³).

MOON LAKE RESERVOIR NEAR MOUNTAIN HOME, UT

Sourcing

Capacity: 61 hm³⏳ Pending

About reservoirs in Utah

As of June 10, 2026, the reservoirs we track across Utah that report live levels hold roughly 12,938 hm³ of water — about 33.3% of their combined capacity. Taken together, Utah's reservoirs are low.

Across the region, 2 are low. Lost Lake is the fullest at 100.7%, while Lake Powell Glen Canyon Dam and Powerplant is the lowest at 22.8%.

Storage figures for Utah come from USGS · USACE · BOR · CDEC; the most recent reading is from June 10, 2026. Each reservoir below links to its own page with full history and seasonal context.

Utah at a glance

Reservoirs tracked: 27
Average fill: 33.3%
Water stored: 12,938 hm³
Combined capacity: 38,845 hm³
Fullest: Lost Lake (100.7%)
Lowest: Lake Powell Glen Canyon Dam and Powerplant (22.8%)
Last updated: June 10, 2026

Frequently asked questions

How full are reservoirs in Utah right now?

As of June 10, 2026, the reservoirs tracked in Utah that report live levels are 33.3% full overall, holding about 12,938 hm³ of water.

How many reservoirs are there in Utah?

reservoirs.earth tracks 27 reservoirs in Utah, with a combined storage capacity of 38,845 hm³.

Which reservoir in Utah is the fullest?

Lost Lake is currently the fullest reservoir in Utah, at 100.7% of capacity.

Which reservoir in Utah is the lowest?

Lake Powell Glen Canyon Dam and Powerplant is currently the lowest in Utah, at 22.8% of capacity.

Where does the reservoir data for Utah come from?

All storage figures for Utah come from USGS · USACE · BOR · CDEC, an official source, last updated June 10, 2026.

ShareX LinkedIn WhatsApp