Glendo Reservoir Water Level Today
Wyoming · near Casper · Well below full pool
- Elevation
- 4,591.54 ft
- From full pool
- −43.46 ft
- Percent of pool
- 33.1%
- 24-hour change
- +0.22 ft
- 7-day change
- +1.36 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Glendo Reservoir
Glendo Reservoir is 43.46 ft below full pool, at 4,591.54 ft, up 0.22 ft in the last 24 hours. That puts the lake at 33.1 percent of its conservation pool. The top of the flood pool is 61.5 ft higher, at 4,653.00 ft.
Over the last 7 days the level rose 1.36 ft, and over 30 days it rose 3.75 ft. In the 399 days of readings on this page the high was 4,626.64 ft on Jun 9, 2026 and the low was 4,583.14 ft on Sep 15, 2025, a range of 43.50 ft.
The reading is the U.S. Army Corps of Engineers gauge at Glendo Dam & Reservoir, near Casper, 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.
Glendo Reservoir pool elevations
| Current elevation | 4,591.54 ft |
|---|---|
| Full pool (top of conservation) | 4,635.00 ft |
| Top of flood pool | 4,653.00 ft |
| Bottom of conservation pool | 4,570.00 ft |
| Top of dam | 4,675.00 ft |
| Outflow | 33 cfs |
| 30-day change | +3.75 ft |
| 1-year high | 4,626.64 ft (Jun 9, 2026) |
| 1-year low | 4,583.14 ft (Sep 15, 2025) |
| Vertical datum | LOCAL |
| Operating agency | U.S. Army Corps of Engineers, NWO district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Wyoming
- Jackson Lake 6,734.22 ft, −33.78 ft from full
- Boysen Reservoir 4,709.88 ft, −15.12 ft from full
- Keyhole Reservoir 4,084.03 ft, −15.27 ft from full
Glendo Reservoir level questions
What is the water level of Glendo Reservoir today?
Glendo Reservoir is at 4,591.54 ft as of Sep 21, 2026, −43.46 ft relative to full pool (4,635.00 ft). The 24-hour change is +0.22 ft.
What is full pool at Glendo Reservoir?
Full pool, the top of the conservation pool, is 4,635.00 ft (LOCAL). Above that, water is stored temporarily in the flood pool up to 4,653.00 ft. The bottom of the conservation pool is 4,570.00 ft.
Is Glendo Reservoir rising or falling?
Over the last 24 hours the level is +0.22 ft; over 7 days it rose 1.36 ft, and over 30 days it rose 3.75 ft.
Where does this Glendo Reservoir level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Glendo Dam & Reservoir. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.