Hyrum Dam
Dam in Cache County, Utah · Little Bear River · forms Hyrum Reservoir
Height
116 ft
35 m (NID height)
Length
540 ft
165 m
Completed
1935
Hyrum Reservoir today
4,638.91 ft
7 days ▲ 1.95 ft
Normal storage
18,685 acre-ft
Reservoir level measured Oct 21, 2026, 1:00 AM MDT. Full level page →
Facts
- Purposes
- Irrigation; Recreation; Water Supply
- Dam type
- Earth
- Structural height
- 116 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 18,685 acre-ft
- Surface area
- 480 acres
- Hydraulic height
- 82 ft
- Drainage area
- 217 sq mi
- Spillway
- Controlled, 53 ft wide
- Army Corps district
- Omaha District
- Also known as
- Hyrum Reservoir
- NID ID
- UT10123
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 22, 2025. Search NID ID UT10123 at nid.sec.usace.army.mil. Project website.
Other dams at Hyrum Reservoir
- Hyrum Dike