Mckay Dam
Dam in Umatilla County, Oregon · Mckay Creek · forms McKay Reservoir
Height
165 ft
50 m (NID height)
Length
2,700 ft
823 m
Completed
1927
McKay Reservoir today
1,246.32 ft
7 days ▼ 3.42 ft
Normal storage
67,800 acre-ft
Reservoir level measured Oct 21, 2026, 12:00 AM PDT. Full level page →
Facts
- Purposes
- Flood Risk Reduction; Irrigation
- Dam type
- Earth
- Structural height
- 165 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 71,534 acre-ft
- Surface area
- 1,200 acres
- Hydraulic height
- 150 ft
- Drainage area
- 193 sq mi
- Spillway
- Controlled, 120 ft wide
- Army Corps district
- Portland District
- Also known as
- Mckay Reservoir
- NID ID
- OR00583
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 22, 2025. Search NID ID OR00583 at nid.sec.usace.army.mil. Project website.