Reservoir · Oregon · United States · BOR RISE
Ochoco Reservoir
Ochoco Reservoir and Dam
17.7% full
Capacity
55.54 hm³
Volume stored
10 hm³
Coordinates
44.299°N, 120.725°W
Last updated
2026-09-30
Current fill
17.7%vs 7 days ago
-0.9%losing
vs 1 year ago
-38.0%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: 2026-09-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 44.299, -120.725 · Open in Google Maps
About Ochoco Reservoir
As of September 30, 2026, Ochoco Reservoir is filled to 17.7% of its total capacity, holding roughly 10 hm³ of water out of a maximum 56 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.9 pts), and it is 38.0 points below its level on the same date a year earlier.
Across the readings we hold for Ochoco Reservoir — 2187 data points between October 3, 2021 and September 30, 2026 — the level has ranged from a low of 7.5% (October 14, 2021) to a high of 96.6% (May 18, 2025). On average the reservoir is fullest around May and at its lowest around November.
It is operated by BOR primarily for multiple purposes. It lies within the Oregon basin at 44.299°N, 120.725°W.
Key facts
- Current fill level
- 17.7%
- Water stored
- 10 hm³
- Total capacity
- 56 hm³
- 7-day change
- ▼ 0.9 pts
- Year-on-year
- ▼ 38.0 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 44.299°N, 120.725°W
- Last updated
- September 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Sep 2026 | 17.7% | 10 |
| 29 Sep 2026 | 17.8% | 10 |
| 28 Sep 2026 | 17.9% | 10 |
| 27 Sep 2026 | 18.0% | 10 |
| 26 Sep 2026 | 18.1% | 10 |
| 25 Sep 2026 | 18.3% | 10 |
| 24 Sep 2026 | 18.4% | 10 |
| 23 Sep 2026 | 18.6% | 10 |
| 22 Sep 2026 | 18.8% | 10 |
| 21 Sep 2026 | 18.9% | 11 |
| 20 Sep 2026 | 19.1% | 11 |
| 19 Sep 2026 | 19.3% | 11 |