Reservoir · Colorado · United States · BOR RISE
Rifle Gap Reservoir
Rifle Gap Reservoir and Dam
5.5% full
Capacity
15.01 hm³
Volume stored
1 hm³
Coordinates
39.628°N, 107.760°W
Last updated
2026-09-09
Current fill
5.5%vs 7 days ago
-2.4%losing
vs 1 year ago
-17.3%year-over-year
7-day trend
↓falling
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: 2026-09-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.628, -107.760 · Open in Google Maps
About Rifle Gap Reservoir
As of September 9, 2026, Rifle Gap Reservoir is filled to 5.5% of its total capacity, holding roughly 1 hm³ of water out of a maximum 15 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has fallen by 2.4 percentage points, and it is 17.3 points below its level on the same date a year earlier.
Across the readings we hold for Rifle Gap Reservoir — 1824 data points between September 12, 2021 and September 9, 2026 — the level has ranged from a low of 5.5% (September 9, 2026) to a high of 104.7% (June 17, 2023). On average the reservoir is fullest around May and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Colorado basin at 39.628°N, 107.760°W.
Key facts
- Current fill level
- 5.5%
- Water stored
- 1 hm³
- Total capacity
- 15 hm³
- 7-day change
- ▼ 2.4 pts
- Year-on-year
- ▼ 17.3 pts
- Primary use
- Multipurpose
- River basin
- Colorado
- Operator
- BOR
- Coordinates
- 39.628°N, 107.760°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 5.5% | 1 |
| 8 Sep 2026 | 5.8% | 1 |
| 7 Sep 2026 | 6.2% | 1 |
| 6 Sep 2026 | 6.7% | 1 |
| 5 Sep 2026 | 7.1% | 1 |
| 4 Sep 2026 | 7.3% | 1 |
| 3 Sep 2026 | 7.6% | 1 |
| 2 Sep 2026 | 7.9% | 1 |
| 1 Sep 2026 | 8.1% | 1 |
| 31 Aug 2026 | 8.1% | 1 |
| 30 Aug 2026 | 7.9% | 1 |
| 29 Aug 2026 | 7.8% | 1 |