Reservoir · Colorado · United States · BOR RISE
Lake Estes and Olympus Dam
70.6% full
Capacity
3.78 hm³
Volume stored
3 hm³
Coordinates
40.373°N, 105.488°W
Last updated
2026-07-28
Current fill
70.6%vs 7 days ago
-0.6%losing
vs 1 year ago
+2.3%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: 2026-07-28.
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 and Olympus Dam
As of July 28, 2026, Lake Estes and Olympus Dam is filled to 70.6% 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 held broadly steady (-0.6 pts), and it is 2.3 points above its level on the same date a year earlier.
Across the readings we hold for Lake Estes and Olympus Dam — 1823 data points between July 31, 2021 and July 28, 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
- 70.6%
- Water stored
- 3 hm³
- Total capacity
- 4 hm³
- 7-day change
- ▼ 0.6 pts
- Year-on-year
- ▲ 2.3 pts
- Primary use
- Multipurpose
- River basin
- Colorado
- Operator
- BOR
- Coordinates
- 40.373°N, 105.488°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 70.6% | 3 |
| 27 Jul 2026 | 71.2% | 3 |
| 26 Jul 2026 | 72.8% | 3 |
| 25 Jul 2026 | 72.8% | 3 |
| 24 Jul 2026 | 74.6% | 3 |
| 23 Jul 2026 | 77.2% | 3 |
| 22 Jul 2026 | 74.6% | 3 |
| 21 Jul 2026 | 71.7% | 3 |
| 20 Jul 2026 | 71.2% | 3 |
| 19 Jul 2026 | 71.2% | 3 |
| 18 Jul 2026 | 73.8% | 3 |
| 17 Jul 2026 | 75.1% | 3 |
Frequently asked questions
What is the current water level of Lake Estes and Olympus Dam?
As of July 28, 2026, Lake Estes and Olympus Dam is at 70.6% of its capacity, holding approximately 3 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Lake Estes and Olympus Dam reservoir full?
No. As of July 28, 2026, Lake Estes and Olympus Dam is within its normal operating range at 70.6% of its capacity, so it is not full.
Is the water level at Lake Estes and Olympus Dam rising or falling?
The level at Lake Estes and Olympus Dam has been broadly stable over the latest week on record (-0.6 points).
How much water can Lake Estes and Olympus Dam hold?
Lake Estes and Olympus Dam has a total capacity of 4 hm³.
Where is Lake Estes and Olympus Dam reservoir located?
Lake Estes and Olympus Dam is located in Colorado, United States, within the Colorado basin (coordinates 40.373°N, 105.488°W).
What is Lake Estes and Olympus Dam used for?
Lake Estes and Olympus Dam is used primarily for multiple purposes, and is managed by BOR.