Foster Dam
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Oregon |
| County | Linn |
| Nearest City | SWEETHOME |
| River/Stream | SOUTH SANTIAM RIVER |
| Coordinates | 44.41561, -122.67016 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 126 ft |
| Dam Height | 125 ft |
| Dam Length | 4,800 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 61,000 acre-ft |
| Max Storage | 61,000 acre-ft |
| Normal Storage | 56,000 acre-ft |
| Surface Area | 1,220 acres |
| Drainage Area | 494 sq mi |
| Max Discharge | 195,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USACE - Portland District |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 06/10/2025 |
| Emergency Action Plan | Yes |