Reservoir · Utah · United States · BOR RISE
Lost Creek Reservoir
Lost Creek Reservoir and Dam
27.5% full
Capacity
27.77 hm³
Volume stored
8 hm³
Vs month average
52% of normal
Coordinates
41.189°N, 111.396°W
Last updated
2026-10-27
Current fill
27.5%vs 7 days ago
0.0 ppstable
vs 1 year ago
-28.2 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
52%of normal
27.5% full on 2026-10-27, against an average of 53.0% for October across 6 years of readings (-25.5 points).
Drought Monitor at this site · 27 October 2026
D1moderate drought
The ground at Lost Creek Reservoir's coordinates falls inside the D1 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Utah drought figures →
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: 2026-10-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.189°N, 111.396°W · Open in Google Maps
About Lost Creek Reservoir
As of October 27, 2026, Lost Creek Reservoir is filled to 27.5% of its total capacity, holding 7.65 hm³ of water out of a maximum 27.77 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pp), and it is 28.2 points below its level on the same date a year earlier.
Across the readings we hold for Lost Creek Reservoir — 1824 data points between October 30, 2021 and October 27, 2026 — the level has ranged from a low of 27.2% (September 16, 2026) 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 is at 41.189°N, 111.396°W.
Key facts
- Current fill level
- 27.5% of total capacity
- Water stored
- 7.65 hm³
- Total capacity
- 27.77 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 28.2 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 41.189°N, 111.396°W
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 27.5% | 7.65 |
| 26 Oct 2026 | 27.5% | 7.65 |
| 25 Oct 2026 | 27.5% | 7.65 |
| 24 Oct 2026 | 27.5% | 7.65 |
| 23 Oct 2026 | 27.5% | 7.64 |
| 22 Oct 2026 | 27.5% | 7.64 |
| 21 Oct 2026 | 27.5% | 7.63 |
| 20 Oct 2026 | 27.5% | 7.63 |
| 19 Oct 2026 | 27.5% | 7.63 |
| 18 Oct 2026 | 27.5% | 7.63 |
| 17 Oct 2026 | 27.5% | 7.63 |
| 16 Oct 2026 | 27.5% | 7.63 |