Conconully Lake at Conconully water level — Washington
Conconully Lake at Conconully in Washington was last measured at 2,300.91 ft (datum NGVD29), as of Aug 31, 2026, 12:45 AM (UTC-07:00) (USGS Water Services). Over its recent trend window the level has been falling (−4.7 ft). This reading is provisional and subject to revision.
- % of conservation pool full
- Not reported
- Storage
- Not reported
- Recent trend
- ↓Falling
−4.7 ft over the trend window
Recent trend
Readings this station published between Jun 30, 2026 and Aug 31, 2026 — a 61-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 12446300, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00). Official page for this lake →
The dam behind Conconully Lake at Conconully
Conconully Lake at Conconully is held back by Salmon Lake Dam (also recorded as Conconully Lake) , an earthfill embankment, holding the pool back by sheer mass and an impervious core rather than by the strength of concrete , standing 54 ft high and running 1,250 ft along its crest , built across SALMON CREEK OS in Okanogan County , near CONCONULLY . It was completed in 1921 and modified in 2001E;2001F;2001S;2003S , and is owned by BUREAU OF RECLAMATION (a federal owner) , to a design credited to BUREAU OF RECLAMATION.
Its recorded primary purpose is irrigation — the pool is drawn down across the growing season to serve water rights downstream, then refilled over winter .
Its spillway is ungated: once the pool reaches the crest, water leaves on its own and the operator cannot hold it back. The spillway opening is 5 ft wide.
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.
At its normal pool the reservoir covers about 313 acres. NID records a maximum storage of 17,280 acre-ft against a normal storage of 15,700 acre-ft. Its maximum discharge capacity is 314 cubic feet per second.
Dam facts: National Inventory of Dams record WA00291 , filed by Bureau of Reclamation — 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 Conconully Lake at Conconully compares nearby
5 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 |
|---|---|---|---|
| Conconcully Reservoir | WA | 2,255.39 ft | 2 km |
| Osoyoos Lake | WA | 911.28 ft | 50 km |
| Franklin Roosevelt Lake | WA | 1,284.17 ft | 88 km |
| Lenore Lake | WA | 1,076.92 ft | 117 km |
| Soap Lake | WA | 1,068.53 ft | 130 km |
| Baker Lake | WA | 725.81 ft | 143 km |
Frequently asked questions
- What is the current water level of Conconully Lake at Conconully?
- As of Aug 31, 2026, 12:45 AM (UTC-07:00), the pool elevation was 2,300.91 ft (datum NGVD29), provisional and subject to revision. See the trend chart above for the recent direction.
- Is Conconully Lake at Conconully 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 12446300, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00).
More in Washington
See every lake tracked in Washington, or read the methodology behind these figures.