Owyhee Dam
Dam in Malheur County, Oregon · Owyhee River · forms Lake Owyhee
Height
417 ft
127 m (NID height)
Length
833 ft
254 m
Completed
1932
Lake Owyhee today
2,604.12 ft
7 days –
Normal storage
1,120,000 acre-ft
Reservoir level measured Oct 19, 2026, 11:00 PM PDT. Full level page →
Facts
- Purposes
- Irrigation
- Dam type
- Concrete
- Structural height
- 417 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 1,120,000 acre-ft
- Surface area
- 13,900 acres
- Hydraulic height
- 330 ft
- Drainage area
- 10,383 sq mi
- Spillway
- Controlled, 189 ft wide
- Army Corps district
- Portland District
- Also known as
- Lake Owyhee
- NID ID
- OR00582
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 22, 2025. Search NID ID OR00582 at nid.sec.usace.army.mil. Project website.