Reservoir · Colorado · United States · BOR RISE
Lake Estes
Lake Estes and Olympus Dam
72.0% full
Capacity
3.78 hm³
Volume stored
3 hm³
Coordinates
40.373°N, 105.488°W
Last updated
2026-09-09
Current fill
72.0%vs 7 days ago
-2.1%losing
vs 1 year ago
+0.6%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. 40.373, -105.488 · Open in Google Maps
About Lake Estes
As of September 9, 2026, Lake Estes is filled to 72.0% of its total capacity, holding roughly 3 hm³ of water out of a maximum 4 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 2.1 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for Lake Estes — 1950 data points between September 12, 2021 and September 9, 2026 — the level has ranged from a low of 24.1% (December 14, 2022) to a high of 84.1% (August 2, 2022). On average the reservoir is fullest around July and at its lowest around December.
It is operated by BOR primarily for multiple purposes. It lies within the Colorado basin at 40.373°N, 105.488°W.
Key facts
- Current fill level
- 72.0%
- Water stored
- 3 hm³
- Total capacity
- 4 hm³
- 7-day change
- ▼ 2.1 pts
- Year-on-year
- ▲ 0.6 pts
- Primary use
- Multipurpose
- River basin
- Colorado
- Operator
- BOR
- Coordinates
- 40.373°N, 105.488°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 72.0% | 3 |
| 8 Sep 2026 | 71.4% | 3 |
| 7 Sep 2026 | 72.2% | 3 |
| 6 Sep 2026 | 72.2% | 3 |
| 5 Sep 2026 | 73.0% | 3 |
| 4 Sep 2026 | 72.5% | 3 |
| 3 Sep 2026 | 69.0% | 3 |
| 2 Sep 2026 | 74.1% | 3 |
| 1 Sep 2026 | 68.8% | 3 |
| 31 Aug 2026 | 66.1% | 3 |
| 30 Aug 2026 | 66.9% | 3 |
| 29 Aug 2026 | 67.7% | 3 |