Reservoir · Oregon · United States · BOR RISE
Unity Reservoir and Dam (UNY)
23.3% full
Capacity
30.8 hm³
Volume stored
7 hm³
Coordinates
44.504°N, 118.181°W
Last updated
2026-07-28
Current fill
23.3%vs 7 days ago
-0.7%losing
vs 1 year ago
-29.9%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. 44.504, -118.181 · Open in Google Maps
About Unity Reservoir and Dam (UNY)
As of July 28, 2026, Unity Reservoir and Dam (UNY) is filled to 23.3% of its total capacity, holding roughly 7 hm³ of water out of a maximum 31 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (-0.7 pts), and it is 29.9 points below its level on the same date a year earlier.
Across the readings we hold for Unity Reservoir and Dam (UNY) — 2189 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 9.4% (October 2, 2021) to a high of 100.6% (May 16, 2022). On average the reservoir is fullest around May and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Oregon basin at 44.504°N, 118.181°W.
Key facts
- Current fill level
- 23.3%
- Water stored
- 7 hm³
- Total capacity
- 31 hm³
- 7-day change
- ▼ 0.7 pts
- Year-on-year
- ▼ 29.9 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 44.504°N, 118.181°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 23.3% | 7 |
| 27 Jul 2026 | 24.0% | 7 |
| 26 Jul 2026 | 24.7% | 8 |
| 25 Jul 2026 | 25.4% | 8 |
| 24 Jul 2026 | 26.1% | 8 |
| 23 Jul 2026 | 26.8% | 8 |
| 22 Jul 2026 | 27.4% | 8 |
| 21 Jul 2026 | 27.9% | 9 |
| 20 Jul 2026 | 28.4% | 9 |
| 19 Jul 2026 | 28.8% | 9 |
| 18 Jul 2026 | 29.2% | 9 |
| 17 Jul 2026 | 29.6% | 9 |
Frequently asked questions
What is the current water level of Unity Reservoir and Dam (UNY)?
As of July 28, 2026, Unity Reservoir and Dam (UNY) is at 23.3% of its capacity, holding approximately 7 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Unity Reservoir and Dam (UNY) reservoir full?
No. As of July 28, 2026, Unity Reservoir and Dam (UNY) is low at 23.3% of its capacity, so it is not full.
Is the water level at Unity Reservoir and Dam (UNY) rising or falling?
The level at Unity Reservoir and Dam (UNY) has been broadly stable over the latest week on record (-0.7 points).
How much water can Unity Reservoir and Dam (UNY) hold?
Unity Reservoir and Dam (UNY) has a total capacity of 31 hm³.
Where is Unity Reservoir and Dam (UNY) reservoir located?
Unity Reservoir and Dam (UNY) is located in Oregon, United States, within the Oregon basin (coordinates 44.504°N, 118.181°W).
What is Unity Reservoir and Dam (UNY) used for?
Unity Reservoir and Dam (UNY) is used primarily for multiple purposes, and is managed by BOR.