Galesville Reservoir water level — Oregon
Galesville Reservoir in Oregon was last measured at 1,826.40 ft (datum NGVD29), as of Aug 31, 2026, 1:00 AM (UTC-07:00) (USGS Water Services). Over its recent trend window the level has been falling (−6.6 ft). This reading is provisional and subject to revision.
- % of conservation pool full
- Not reported
- Storage
- Not reported
- Recent trend
- ↓Falling
−6.6 ft over the trend window
Recent trend
Readings this station published between Jun 2, 2026 and Aug 31, 2026 — a 89-day window — downsampled for display.
Data: USGS Water Services (waterservices.usgs.gov) and USACE CWMS Data (cwms-data.usace.army.mil), retrieved 2026-08-31. Both public domain (a work of the U.S. Government, 17 U.S.C. §105).
Source: USGS site 14308995, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00). Official page for this lake →
About this gauge's record
This site's drainage basin covers approximately 74 sq mi of contributing watershed.
The dam behind Galesville Reservoir
Galesville Reservoir is held back by Galesville , a concrete gravity structure, resisting the reservoir by its own weight alone , standing 167 ft high and running 950 ft along its crest , built across Cow Creek, Umpqua River in Douglas County , near Glendale, OR . It was completed in 1985 , and is owned by Douglas County, Oregon (a local government owner) , to a design credited to Morrison-Knudson Engineers, Inc..
Its recorded primary purpose is irrigation — the pool is drawn down across the growing season to serve water rights downstream, then refilled over winter . It also serves irrigation;fish and wildlife pond;recreation;hydroelectric;flood risk reduction.
It is founded on rock, with a concrete core. Its spillway is ungated: once the pool reaches the crest, water leaves on its own and the operator cannot hold it back.
NID classes it high hazard potential. That describes what a failure would cost downstream — loss of life would be expected — and says nothing about how likely a failure is, or what condition the dam is in. Its most recent condition assessment was satisfactory — no deficiencies recognised for expected loading. That assessment is dated 04/11/2023.
At its normal pool the reservoir covers about 640 acres. NID records a maximum storage of 117,000 acre-ft against a normal storage of 41,890 acre-ft. Its maximum discharge capacity is 45,700 cubic feet per second.
Dam facts: National Inventory of Dams record OR00748 , filed by Federal Energy Regulatory Commission — U.S. Army Corps of Engineers, public domain. Water levels above come from USGS Water Services and are a separate source. (How this dam was matched to this gauge →)
How Galesville Reservoir compares nearby
4 of 6 nearby lakes with a current trend are also falling right now.
Nearby lakes
The six nearest published lakes by centroid distance (great-circle) — cross-state neighbors included.
| Lake | State | Level | Distance |
|---|---|---|---|
| Lost Creek Lake | OR | 1,795.11 ft | 46 km |
| Applegate Lake | OR | 1,912.97 ft | 88 km |
| Crater Lake | OR | 6,166.30 ft | 90 km |
| Diamond Lake | OR | 5,183.95 ft | 90 km |
| Lemolo Lake | OR | 4,146.77 ft | 96 km |
| Cottage Grove Lake | OR | 774.54 ft | 97 km |
Frequently asked questions
- What is the current water level of Galesville Reservoir?
- As of Aug 31, 2026, 1:00 AM (UTC-07:00), the pool elevation was 1,826.40 ft (datum NGVD29), provisional and subject to revision. See the trend chart above for the recent direction.
- Is Galesville Reservoir full right now?
- Its managing agency does not publish a %-of-conservation-pool-full figure for this lake, so we show the bare level rather than estimate one.
- Where does this data come from?
- From USGS site 14308995, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00).
More in Oregon
See every lake tracked in Oregon, or read the methodology behind these figures.