Cottage Grove Lake Water Level Today
Oregon · near Cottage Grove · Below full pool
- Elevation
- 770.54 ft
- From full pool
- −19.46 ft
- Percent of pool
- 51.4%
- 24-hour change
- −0.43 ft
- 7-day change
- −2.38 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Cottage Grove Lake
Cottage Grove Lake is 19.46 ft below full pool, at 770.54 ft, down 0.43 ft in the last 24 hours. That puts the lake at 51.4 percent of its conservation pool. The top of the flood pool is 20.5 ft higher, at 791.00 ft.
Over the last 7 days the level fell 2.38 ft, and over 30 days it fell 5.36 ft. In the 400 days of readings on this page the high was 786.86 ft on May 7, 2026 and the low was 748.77 ft on Nov 17, 2025, a range of 38.09 ft.
The reading is the U.S. Army Corps of Engineers gauge at Cottage Grove Dam, near Cottage Grove, taken Sep 21, 2026 and referenced to the NGVD29 datum. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the USACE page for hourly values.
Cottage Grove Lake pool elevations
| Current elevation | 770.54 ft |
|---|---|
| Full pool (top of conservation) | 790.00 ft |
| Top of flood pool | 791.00 ft |
| Bottom of conservation pool | 750.00 ft |
| Top of dam | 808.00 ft |
| Inflow | -8 cfs |
| Outflow | 165 cfs |
| 30-day change | −5.36 ft |
| 1-year high | 786.86 ft (May 7, 2026) |
| 1-year low | 748.77 ft (Nov 17, 2025) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, NWP district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Oregon
- Applegate Lake 1,904.03 ft, −82.97 ft from full
- Beulah Reservoir 3,289.79 ft, −43.21 ft from full
- Blue River Lake 1,258.54 ft, −91.46 ft from full
- Brownlee Lake 2,055.68 ft, −18.32 ft from full
- Bully Creek Reservoir 2,479.76 ft, −30.24 ft from full
- Cougar Lake 1,549.15 ft, −140.85 ft from full
Cottage Grove Lake level questions
What is the water level of Cottage Grove Lake today?
Cottage Grove Lake is at 770.54 ft as of Sep 21, 2026, −19.46 ft relative to full pool (790.00 ft). The 24-hour change is −0.43 ft.
What is full pool at Cottage Grove Lake?
Full pool, the top of the conservation pool, is 790.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 791.00 ft. The bottom of the conservation pool is 750.00 ft.
Is Cottage Grove Lake rising or falling?
Over the last 24 hours the level is −0.43 ft; over 7 days it fell 2.38 ft, and over 30 days it fell 5.36 ft.
Where does this Cottage Grove Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Cottage Grove Dam. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.