Foster Dam
Dam in Linn County, Oregon · South Santiam River · forms Foster Lake
Height
126 ft
38 m (NID height)
Length
4,800 ft
1,463 m
Completed
1967
Foster Lake today
613.40 ft
7 days ▲ 0.04 ft
vs full pool
▼ 23.60 ft
Normal storage
56,000 acre-ft
Much below normal for the date
Reservoir level measured Oct 23, 2026, 10:30 AM PDT. Full level page →
Facts
- Purposes
- Flood Risk Reduction; Other; Irrigation; Navigation; Recreation; Hydroelectric
- Dam type
- Rockfill
- Structural height
- 126 ft
- Owner
- USACE - Portland District (Federal)
- Maximum storage
- 61,000 acre-ft
- Surface area
- 1,220 acres
- Hydraulic height
- 123 ft
- Drainage area
- 494 sq mi
- Spillway
- Controlled, 180 ft wide
- Army Corps district
- Portland District
- Also known as
- Foster Lake
- NID ID
- OR00012
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 1, 2026. Search NID ID OR00012 at nid.sec.usace.army.mil. Project website.
Other dams at Foster Lake
- Foster Log Pond