Reservoir · Colorado · United States · BOR RISE
Mount Elbert Forebay Reservoir
Mount Elbert Forebay Reservoir and Dam
86.1% full
Capacity
13.74 hm³
Volume stored
12 hm³
Coordinates
39.102°N, 106.353°W
Last updated
2026-09-09
Current fill
86.1%vs 7 days ago
+1.7%gaining
vs 1 year ago
+7.8%year-over-year
7-day trend
↑rising
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. 39.102, -106.353 · Open in Google Maps
About Mount Elbert Forebay Reservoir
As of September 9, 2026, Mount Elbert Forebay Reservoir is filled to 86.1% of its total capacity, holding roughly 12 hm³ of water out of a maximum 14 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has risen by 1.7 percentage points, and it is 7.8 points above its level on the same date a year earlier.
Across the readings we hold for Mount Elbert Forebay Reservoir — 1949 data points between September 12, 2021 and September 9, 2026 — the level has ranged from a low of 31.8% (December 3, 2024) to a high of 94.5% (January 4, 2026). On average the reservoir is fullest around June and at its lowest around April.
It is operated by BOR primarily for multiple purposes. It lies within the Colorado basin at 39.102°N, 106.353°W.
Key facts
- Current fill level
- 86.1%
- Water stored
- 12 hm³
- Total capacity
- 14 hm³
- 7-day change
- ▲ 1.7 pts
- Year-on-year
- ▲ 7.8 pts
- Primary use
- Multipurpose
- River basin
- Colorado
- Operator
- BOR
- Coordinates
- 39.102°N, 106.353°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 86.1% | 12 |
| 8 Sep 2026 | 85.9% | 12 |
| 7 Sep 2026 | 85.8% | 12 |
| 6 Sep 2026 | 85.6% | 12 |
| 5 Sep 2026 | 85.4% | 12 |
| 4 Sep 2026 | 85.3% | 12 |
| 3 Sep 2026 | 85.2% | 12 |
| 2 Sep 2026 | 84.4% | 12 |
| 1 Sep 2026 | 82.6% | 11 |
| 31 Aug 2026 | 80.9% | 11 |
| 30 Aug 2026 | 79.0% | 11 |
| 29 Aug 2026 | 77.1% | 11 |