Bonny Lake Water Level Today
Colorado · near Sterling · Well below full pool
- Elevation
- 3,638.00 ft
- From full pool
- −34.00 ft
- Percent of pool
- 0.0%
- 24-hour change
- no change
- 7-day change
- no change
- Reading
- Sep 21, 2026 · USACE
Last year at Bonny Lake
Bonny Lake is 34.00 ft below full pool, at 3,638.00 ft, holding steady over the last 24 hours. That puts the lake at 0.0 percent of its conservation pool. The top of the flood pool is 72.0 ft higher, at 3,710.00 ft.
Over the last 7 days the level held steady, and over 30 days it held steady. In the 395 days of readings on this page the high was 3,638.00 ft on Aug 18, 2025 and the low was 3,638.00 ft on Aug 18, 2025, a range of 0.00 ft.
The reading is the U.S. Army Corps of Engineers gauge at Bonny Dam, near Sterling, taken Sep 21, 2026 and referenced to the LOCAL 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.
Bonny Lake pool elevations
| Current elevation | 3,638.00 ft |
|---|---|
| Full pool (top of conservation) | 3,672.00 ft |
| Top of flood pool | 3,710.00 ft |
| Bottom of conservation pool | 3,638.00 ft |
| Top of dam | 3,742.00 ft |
| Inflow | 5 cfs |
| Outflow | 2 cfs |
| 30-day change | no change |
| 1-year high | 3,638.00 ft (Aug 18, 2025) |
| 1-year low | 3,638.00 ft (Aug 18, 2025) |
| Vertical datum | LOCAL |
| Operating agency | U.S. Army Corps of Engineers, NWK district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Colorado
- Bear Creek Reservoir 5,544.03 ft, −13.97 ft from full
- Blue Mesa Reservoir 7,414.18 ft, −105.22 ft from full
- Chatfield Reservoir 5,432.24 ft, −11.76 ft from full
- Cherry Creek Reservoir 5,546.16 ft, −3.84 ft from full
- John Martin Lake 3,801.05 ft, −50.79 ft from full
- Lemon Reservoir 8,093.40 ft, −54.53 ft from full
Bonny Lake level questions
What is the water level of Bonny Lake today?
Bonny Lake is at 3,638.00 ft as of Sep 21, 2026, −34.00 ft relative to full pool (3,672.00 ft). The 24-hour change is no change.
What is full pool at Bonny Lake?
Full pool, the top of the conservation pool, is 3,672.00 ft (LOCAL). Above that, water is stored temporarily in the flood pool up to 3,710.00 ft. The bottom of the conservation pool is 3,638.00 ft.
Is Bonny Lake rising or falling?
Over the last 24 hours the level is no change; over 7 days it held steady, and over 30 days it held steady.
Where does this Bonny Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Bonny Dam. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.