Reservoir · Oregon · United States · BOR RISE
Prineville Reservoir and Arthur R. Bowman Dam (PRV)
39.7% full
Capacity
185.29 hm³
Volume stored
74 hm³
Coordinates
44.111°N, 120.787°W
Last updated
2026-07-28
Current fill
39.7%vs 7 days ago
-0.3%losing
vs 1 year ago
-16.6%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. 44.111, -120.787 · Open in Google Maps
About Prineville Reservoir and Arthur R. Bowman Dam (PRV)
As of July 28, 2026, Prineville Reservoir and Arthur R. Bowman Dam (PRV) is filled to 39.7% of its total capacity, holding roughly 74 hm³ of water out of a maximum 185 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (-0.3 pts), and it is 16.6 points below its level on the same date a year earlier.
Across the readings we hold for Prineville Reservoir and Arthur R. Bowman Dam (PRV) — 2189 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 9.3% (December 19, 2022) to a high of 100.2% (May 16, 2023). 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 44.111°N, 120.787°W.
Key facts
- Current fill level
- 39.7%
- Water stored
- 74 hm³
- Total capacity
- 185 hm³
- 7-day change
- ▼ 0.3 pts
- Year-on-year
- ▼ 16.6 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 44.111°N, 120.787°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 39.7% | 74 |
| 27 Jul 2026 | 40.0% | 74 |
| 26 Jul 2026 | 40.4% | 75 |
| 25 Jul 2026 | 40.8% | 76 |
| 24 Jul 2026 | 41.1% | 76 |
| 23 Jul 2026 | 41.4% | 77 |
| 22 Jul 2026 | 41.8% | 77 |
| 21 Jul 2026 | 42.1% | 78 |
| 20 Jul 2026 | 42.3% | 78 |
| 19 Jul 2026 | 42.6% | 79 |
| 18 Jul 2026 | 42.9% | 80 |
| 17 Jul 2026 | 43.2% | 80 |
Frequently asked questions
What is the current water level of Prineville Reservoir and Arthur R. Bowman Dam (PRV)?
As of July 28, 2026, Prineville Reservoir and Arthur R. Bowman Dam (PRV) is at 39.7% of its capacity, holding approximately 74 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Prineville Reservoir and Arthur R. Bowman Dam (PRV) reservoir full?
No. As of July 28, 2026, Prineville Reservoir and Arthur R. Bowman Dam (PRV) is low at 39.7% of its capacity, so it is not full.
Is the water level at Prineville Reservoir and Arthur R. Bowman Dam (PRV) rising or falling?
The level at Prineville Reservoir and Arthur R. Bowman Dam (PRV) has been broadly stable over the latest week on record (-0.3 points).
How much water can Prineville Reservoir and Arthur R. Bowman Dam (PRV) hold?
Prineville Reservoir and Arthur R. Bowman Dam (PRV) has a total capacity of 185 hm³.
Where is Prineville Reservoir and Arthur R. Bowman Dam (PRV) reservoir located?
Prineville Reservoir and Arthur R. Bowman Dam (PRV) is located in Oregon, United States, within the Oregon basin (coordinates 44.111°N, 120.787°W).
What is Prineville Reservoir and Arthur R. Bowman Dam (PRV) used for?
Prineville Reservoir and Arthur R. Bowman Dam (PRV) is used primarily for multiple purposes, and is managed by BOR.