Big Sandy Dam
Dam in Sweetwater County, Wyoming · Big Sandy Creek · forms Big Sandy Reservoir
Height
85 ft
26 m (NID height)
Length
2,350 ft
716 m
Completed
1952
Big Sandy Reservoir today
6,739.34 ft
7 days ▲ 1.59 ft
Normal storage
39,700 acre-ft
Normal for the date
Reservoir level measured Oct 23, 2026, 12:15 PM MDT. Full level page →
Facts
- Purposes
- Flood Risk Reduction; Irrigation
- Dam type
- Earth
- Structural height
- 85 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 54,400 acre-ft
- Surface area
- 2,510 acres
- Hydraulic height
- 69 ft
- Drainage area
- 387 sq mi
- Spillway
- Uncontrolled, 170 ft wide
- Army Corps district
- Omaha District
- Also known as
- Big Sandy Reservoir
- NID ID
- WY01387
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID WY01387 at nid.sec.usace.army.mil. Project website.
Other dams at Big Sandy Reservoir
- Big Sandy Dike