Agency Valley Dam
Dam in Malheur County, Oregon · North Fork Malheur River · forms Beulah Reservoir
Height
110 ft
34 m (NID height)
Length
1,850 ft
564 m
Completed
1934
Beulah Reservoir today
3,290.86 ft
7 days ▲ 1.26 ft
Normal storage
59,212 acre-ft
Normal for the date
Reservoir level measured Oct 23, 2026, 1:00 AM PDT. Full level page →
Facts
- Purposes
- Flood Risk Reduction; Irrigation
- Dam type
- Earth
- Structural height
- 110 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 59,212 acre-ft
- Surface area
- 1,912 acres
- Hydraulic height
- 80 ft
- Drainage area
- 447 sq mi
- Spillway
- Controlled, 54 ft wide
- Army Corps district
- Portland District
- Also known as
- Beulah Reservoir
- NID ID
- OR00589
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 22, 2025. Search NID ID OR00589 at nid.sec.usace.army.mil. Project website.