Reservoir · Oregon · United States · BOR RISE
Howard Prairie Lake and Dam
55.5% full
Capacity
76.6 hm³
Volume stored
43 hm³
Coordinates
42.217°N, 122.378°W
Last updated
2026-08-12
Current fill
55.5%vs 7 days ago
-1.4%losing
vs 1 year ago
-26.9%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: 2026-08-12.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.217, -122.378 · Open in Google Maps
About Howard Prairie Lake and Dam
As of August 12, 2026, Howard Prairie Lake and Dam is filled to 55.5% of its total capacity, holding roughly 43 hm³ of water out of a maximum 77 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 (-1.4 pts), and it is 26.9 points below its level on the same date a year earlier.
Across the readings we hold for Howard Prairie Lake and Dam — 2185 data points between August 15, 2021 and August 12, 2026 — the level has ranged from a low of 3.5% (October 7, 2021) to a high of 93.4% (May 21, 2025). 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 42.217°N, 122.378°W.
Key facts
- Current fill level
- 55.5%
- Water stored
- 43 hm³
- Total capacity
- 77 hm³
- 7-day change
- ▼ 1.4 pts
- Year-on-year
- ▼ 26.9 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 42.217°N, 122.378°W
- Last updated
- August 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Aug 2026 | 55.5% | 42 |
| 11 Aug 2026 | 55.7% | 43 |
| 10 Aug 2026 | 55.9% | 43 |
| 7 Aug 2026 | 56.6% | 43 |
| 6 Aug 2026 | 56.8% | 43 |
| 5 Aug 2026 | 56.9% | 44 |
| 4 Aug 2026 | 57.1% | 44 |
| 3 Aug 2026 | 57.3% | 44 |
| 2 Aug 2026 | 57.5% | 44 |
| 31 Jul 2026 | 58.0% | 44 |
| 29 Jul 2026 | 58.4% | 45 |
| 28 Jul 2026 | 58.6% | 45 |
Frequently asked questions
What is the current water level of Howard Prairie Lake and Dam?
As of August 12, 2026, Howard Prairie Lake and Dam is at 55.5% of its capacity, holding approximately 43 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Howard Prairie Lake and Dam reservoir full?
No. As of August 12, 2026, Howard Prairie Lake and Dam is within its normal operating range at 55.5% of its capacity, so it is not full.
Is the water level at Howard Prairie Lake and Dam rising or falling?
The level at Howard Prairie Lake and Dam has been broadly stable over the latest week on record (-1.4 points).
How much water can Howard Prairie Lake and Dam hold?
Howard Prairie Lake and Dam has a total capacity of 77 hm³.
Where is Howard Prairie Lake and Dam reservoir located?
Howard Prairie Lake and Dam is located in Oregon, United States, within the Oregon basin (coordinates 42.217°N, 122.378°W).
What is Howard Prairie Lake and Dam used for?
Howard Prairie Lake and Dam is used primarily for multiple purposes, and is managed by BOR.