Reservoir · Utah · United States · BOR RISE
Lost Creek Reservoir and Dam
54.4% full
Capacity
27.77 hm³
Volume stored
15 hm³
Coordinates
41.189°N, 111.396°W
Last updated
2026-06-10
Current fill
54.4%vs 7 days ago
-0.3%losing
vs 1 year ago
-13.0%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-06-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.189, -111.396 · Open in Google Maps
About Lost Creek Reservoir and Dam
As of June 10, 2026, Lost Creek Reservoir and Dam is filled to 54.4% of its total capacity, holding roughly 15 hm³ of water out of a maximum 28 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.3 pts), and it is 13.0 points below its level on the same date a year earlier.
Across the readings we hold for Lost Creek Reservoir and Dam — 1824 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 38.6% (April 27, 2023) to a high of 102.7% (May 22, 2024). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Utah basin at 41.189°N, 111.396°W.
Key facts
- Current fill level
- 54.4%
- Water stored
- 15 hm³
- Total capacity
- 28 hm³
- 7-day change
- ▼ 0.3 pts
- Year-on-year
- ▼ 13.0 pts
- Primary use
- Multipurpose
- River basin
- Utah
- Operator
- BOR
- Coordinates
- 41.189°N, 111.396°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 54.4% | 15 |
| 9 Jun 2026 | 54.7% | 15 |
| 8 Jun 2026 | 55.0% | 15 |
| 7 Jun 2026 | 55.3% | 15 |
| 6 Jun 2026 | 55.6% | 15 |
| 5 Jun 2026 | 55.9% | 16 |
| 4 Jun 2026 | 56.1% | 16 |
| 3 Jun 2026 | 56.4% | 16 |
| 2 Jun 2026 | 56.7% | 16 |
| 1 Jun 2026 | 57.0% | 16 |
| 31 May 2026 | 57.3% | 16 |
| 30 May 2026 | 57.5% | 16 |
Frequently asked questions
What is the current water level of Lost Creek Reservoir and Dam?
As of June 10, 2026, Lost Creek Reservoir and Dam is at 54.4% of its capacity, holding approximately 15 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Lost Creek Reservoir and Dam reservoir full?
No. As of June 10, 2026, Lost Creek Reservoir and Dam is within its normal operating range at 54.4% of its capacity, so it is not full.
Is the water level at Lost Creek Reservoir and Dam rising or falling?
The level at Lost Creek Reservoir and Dam has been broadly stable over the latest week on record (-0.3 points).
How much water can Lost Creek Reservoir and Dam hold?
Lost Creek Reservoir and Dam has a total capacity of 28 hm³.
Where is Lost Creek Reservoir and Dam reservoir located?
Lost Creek Reservoir and Dam is located in Utah, United States, within the Utah basin (coordinates 41.189°N, 111.396°W).
What is Lost Creek Reservoir and Dam used for?
Lost Creek Reservoir and Dam is used primarily for multiple purposes, and is managed by BOR.