Cougar Lake Water Level Today
Oregon · near Rainbow · Well below full pool
- Elevation
- 1,549.15 ft
- From full pool
- −140.85 ft
- Percent of pool
- 32.9%
- 24-hour change
- −0.43 ft
- 7-day change
- −3.75 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Cougar Lake
Cougar Lake is 140.85 ft below full pool, at 1,549.15 ft, down 0.43 ft in the last 24 hours. That puts the lake at 32.9 percent of its conservation pool. The top of the flood pool is 149.8 ft higher, at 1,699.00 ft.
Over the last 7 days the level fell 3.75 ft, and over 30 days it fell 13.95 ft. In the 400 days of readings on this page the high was 1,578.27 ft on Jun 13, 2026 and the low was 1,502.13 ft on Dec 5, 2025, a range of 76.14 ft.
The reading is the U.S. Army Corps of Engineers gauge at Cougar Dam, near Rainbow, 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.
Cougar Lake pool elevations
| Current elevation | 1,549.15 ft |
|---|---|
| Full pool (top of conservation) | 1,690.00 ft |
| Top of flood pool | 1,699.00 ft |
| Bottom of conservation pool | 1,480.00 ft |
| Top of dam | 1,705.00 ft |
| Inflow | 195 cfs |
| Outflow | 355 cfs |
| 30-day change | −13.95 ft |
| 1-year high | 1,578.27 ft (Jun 13, 2026) |
| 1-year low | 1,502.13 ft (Dec 5, 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
- Cottage Grove Lake 770.54 ft, −19.46 ft from full
Cougar Lake level questions
What is the water level of Cougar Lake today?
Cougar Lake is at 1,549.15 ft as of Sep 21, 2026, −140.85 ft relative to full pool (1,690.00 ft). The 24-hour change is −0.43 ft.
What is full pool at Cougar Lake?
Full pool, the top of the conservation pool, is 1,690.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 1,699.00 ft. The bottom of the conservation pool is 1,480.00 ft.
Is Cougar Lake rising or falling?
Over the last 24 hours the level is −0.43 ft; over 7 days it fell 3.75 ft, and over 30 days it fell 13.95 ft.
Where does this Cougar Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Cougar Dam. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.