Reservoir · Colorado · United States · BOR RISE
Twin Lakes Reservoir
Twin Lakes Reservoir and Dam
76.3% full
Capacity
173.92 hm³
Volume stored
133 hm³
Vs month average
91% of normal
Coordinates
39.080°N, 106.314°W
Last updated
2026-10-27
Current fill
76.3%vs 7 days ago
+0.4 ppgaining
vs 1 year ago
-9.5 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
91%of normal
76.3% full on 2026-10-27, against an average of 84.2% for October across 6 years of readings (-7.9 points).
Drought Monitor at this site · 20 October 2026
D4exceptional drought
The ground at Twin Lakes Reservoir's coordinates falls inside the D4 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Colorado 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. 39.080°N, 106.314°W · Open in Google Maps
About Twin Lakes Reservoir
As of October 27, 2026, Twin Lakes Reservoir is filled to 76.3% of its total capacity, holding 132.64 hm³ of water out of a maximum 173.92 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 (+0.4 pp), and it is 9.5 points below its level on the same date a year earlier.
Across the readings we hold for Twin Lakes Reservoir — 2040 data points between October 29, 2021 and October 27, 2026 — the level has ranged from a low of 62.8% (May 11, 2026) to a high of 96.4% (June 25, 2024). On average the reservoir is fullest around October and at its lowest around April.
It is operated by BOR primarily for multiple purposes. It is at 39.080°N, 106.314°W.
Key facts
- Current fill level
- 76.3% of total capacity
- Water stored
- 132.64 hm³
- Total capacity
- 173.92 hm³
- 7-day change
- ▲ 0.4 pp
- Year-on-year
- ▼ 9.5 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 39.080°N, 106.314°W
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 76.3% | 132.64 |
| 26 Oct 2026 | 76.4% | 132.79 |
| 25 Oct 2026 | 76.3% | 132.71 |
| 24 Oct 2026 | 76.2% | 132.57 |
| 23 Oct 2026 | 76.1% | 132.39 |
| 22 Oct 2026 | 76.1% | 132.3 |
| 21 Oct 2026 | 76.0% | 132.2 |
| 20 Oct 2026 | 75.9% | 131.98 |
| 19 Oct 2026 | 75.9% | 131.93 |
| 18 Oct 2026 | 75.8% | 131.8 |
| 17 Oct 2026 | 75.7% | 131.66 |
| 16 Oct 2026 | 75.7% | 131.58 |