Reservoir · Oregon · United States · BOR RISE
Fourmile Lake and Fourmile Lake Dam (FOR)
8.5% full
Capacity
19.24 hm³
Volume stored
2 hm³
Coordinates
42.456°N, 122.243°W
Last updated
2026-06-11
Current fill
8.5%vs 7 days ago
-0.4%losing
vs 1 year ago
-26.5%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: 2026-06-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.456, -122.243 · Open in Google Maps
About Fourmile Lake and Fourmile Lake Dam (FOR)
As of June 11, 2026, Fourmile Lake and Fourmile Lake Dam (FOR) is filled to 8.5% of its total capacity, holding roughly 2 hm³ of water out of a maximum 19 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.4 pts), and it is 26.5 points below its level on the same date a year earlier.
Across the readings we hold for Fourmile Lake and Fourmile Lake Dam (FOR) — 2189 data points between June 13, 2021 and June 11, 2026 — the level has ranged from a low of 7.8% (September 21, 2025) to a high of 83.5% (June 10, 2025). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Oregon basin at 42.456°N, 122.243°W.
Key facts
- Current fill level
- 8.5%
- Water stored
- 2 hm³
- Total capacity
- 19 hm³
- 7-day change
- ▼ 0.4 pts
- Year-on-year
- ▼ 26.5 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 42.456°N, 122.243°W
- Last updated
- June 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Jun 2026 | 8.5% | 2 |
| 10 Jun 2026 | 8.9% | 2 |
| 9 Jun 2026 | 9.2% | 2 |
| 8 Jun 2026 | 9.5% | 2 |
| 7 Jun 2026 | 9.8% | 2 |
| 6 Jun 2026 | 10.7% | 2 |
| 5 Jun 2026 | 11.8% | 2 |
| 4 Jun 2026 | 11.5% | 2 |
| 3 Jun 2026 | 12.3% | 2 |
| 2 Jun 2026 | 12.4% | 2 |
| 1 Jun 2026 | 13.6% | 3 |
| 31 May 2026 | 13.8% | 3 |
Frequently asked questions
What is the current water level of Fourmile Lake and Fourmile Lake Dam (FOR)?
As of June 11, 2026, Fourmile Lake and Fourmile Lake Dam (FOR) is at 8.5% of its capacity, holding approximately 2 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Fourmile Lake and Fourmile Lake Dam (FOR) reservoir full?
No. As of June 11, 2026, Fourmile Lake and Fourmile Lake Dam (FOR) is critically low at 8.5% of its capacity, so it is not full.
Is the water level at Fourmile Lake and Fourmile Lake Dam (FOR) rising or falling?
The level at Fourmile Lake and Fourmile Lake Dam (FOR) has been broadly stable over the latest week on record (-0.4 points).
How much water can Fourmile Lake and Fourmile Lake Dam (FOR) hold?
Fourmile Lake and Fourmile Lake Dam (FOR) has a total capacity of 19 hm³.
Where is Fourmile Lake and Fourmile Lake Dam (FOR) reservoir located?
Fourmile Lake and Fourmile Lake Dam (FOR) is located in Oregon, United States, within the Oregon basin (coordinates 42.456°N, 122.243°W).
What is Fourmile Lake and Fourmile Lake Dam (FOR) used for?
Fourmile Lake and Fourmile Lake Dam (FOR) is used primarily for multiple purposes, and is managed by BOR.