Detroit Dam
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Oregon |
| County | Linn |
| Nearest City | MILL CITY |
| River/Stream | NORTH SANTIAM RIVER |
| Coordinates | 44.72173, -122.25010 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 463 ft |
| Dam Height | 369 ft |
| Dam Length | 1,580 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 455,000 acre-ft |
| Max Storage | 455,000 acre-ft |
| Normal Storage | 155,000 acre-ft |
| Surface Area | 3,490 acres |
| Drainage Area | 438 sq mi |
| Max Discharge | 176,000 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 | 04/13/2026 |
| Emergency Action Plan | Yes |