Belle Fourche Dam
Dam in Butte County, South Dakota · Owl Creek · forms Belle Fourche Reservoir
Height
122 ft
37 m (NID height)
Length
6,262 ft
1,909 m
Completed
1911
Belle Fourche Reservoir today
2,957.04 ft
7 days ▼ 0.01 ft
Normal storage
192,077 acre-ft
Reservoir level measured Oct 21, 2026, 1:00 AM CDT. Full level page →
Facts
- Purposes
- Irrigation; Recreation
- Dam type
- Earth
- Structural height
- 122 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 246,000 acre-ft
- Surface area
- 9,861 acres
- Hydraulic height
- 97 ft
- Drainage area
- 205 sq mi
- Spillway
- Uncontrolled, 70 ft wide
- Army Corps district
- Omaha District
- Also known as
- Belle Fourche Reservoir;Orman
- NID ID
- SD01100
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID SD01100 at nid.sec.usace.army.mil. Project website.