Lost Creek Reservoir water level — Utah
Lost Creek Reservoir in Utah was last measured at 5,946.68 ft (datum NGVD29), as of Aug 30, 2026, 6:00 AM (UTC+00:00) (USACE CWMS Data). Over its recent trend window the level has been falling (−10.2 ft).
- % of conservation pool full
- Not reported
- Storage
- 6,974 acre-ft
- Recent trend
- ↓Falling
−10.2 ft over the trend window
Recent trend
Readings this station published between Jun 3, 2026 and Aug 30, 2026 — a 88-day window — downsampled for display.
Data: USGS Water Services (waterservices.usgs.gov) and USACE CWMS Data (cwms-data.usace.army.mil), retrieved 2026-08-31. Both public domain (a work of the U.S. Government, 17 U.S.C. §105).
Source: USACE SPK/Lost Cr, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00). Official page for this lake →
The dam behind Lost Creek Reservoir
Lost Creek Reservoir is held back by Lost Creek Dam (also recorded as Lost Creek Reservoir) , an earthfill embankment, holding the pool back by sheer mass and an impervious core rather than by the strength of concrete , standing 248 ft high and running 1,078 ft along its crest , built across LOST CREEK in Morgan County , near DEVILS SLIDE . It was completed in 1966 and modified in 1999E;1999F;1999S , and is owned by BUREAU OF RECLAMATION (a federal owner) .
Its recorded primary purpose is irrigation — the pool is drawn down across the growing season to serve water rights downstream, then refilled over winter .
Its spillway is ungated: once the pool reaches the crest, water leaves on its own and the operator cannot hold it back. The spillway opening is 18 ft wide.
NID classes it high hazard potential. That describes what a failure would cost downstream — loss of life would be expected — and says nothing about how likely a failure is, or what condition the dam is in.
At its normal pool the reservoir covers about 365 acres. NID records a maximum storage of 26,760 acre-ft against a normal storage of 22,510 acre-ft. Its maximum discharge capacity is 2,455 cubic feet per second.
Dam facts: National Inventory of Dams record UT10125 , filed by Bureau of Reclamation — U.S. Army Corps of Engineers, public domain. Water levels above come from USACE CWMS Data and are a separate source. (How this dam was matched to this gauge →)
How Lost Creek Reservoir compares nearby
All 5 nearby lakes with a current trend are also falling, suggesting a regional pattern rather than an operation specific to this dam.
Nearby lakes
The six nearest published lakes by centroid distance (great-circle) — cross-state neighbors included.
| Lake | State | Level | Distance |
|---|---|---|---|
| Combined Echo/rockport | UT | — | 25 km |
| Echo Dam & Reservoir | UT | 5,516.41 ft | 25 km |
| East Canyon Dam & Reservoir | UT | 5,663.49 ft | 34 km |
| Pineview Dam & Reservoir | UT | 4,854.20 ft | 38 km |
| Wanship Dam & Rockport Lake | UT | 5,990.52 ft | 44 km |
| Little Dell Dam & Lake | UT | 5,763.55 ft | 53 km |
Frequently asked questions
- What is the current water level of Lost Creek Reservoir?
- As of Aug 30, 2026, 6:00 AM (UTC+00:00), the pool elevation was 5,946.68 ft (datum NGVD29). See the trend chart above for the recent direction.
- Is Lost Creek Reservoir full right now?
- Its managing agency does not publish a %-of-conservation-pool-full figure for this lake, so we show the bare level rather than estimate one.
- Where does this data come from?
- From USACE SPK/Lost Cr, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00).
More in Utah
See every lake tracked in Utah, or read the methodology behind these figures.