Cottage Grove Dam
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Oregon |
| County | Lane |
| Nearest City | COTTAGE GROVE |
| River/Stream | COAST FORK WILLAMETTE RIVER |
| Coordinates | 43.71638, -123.05375 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 103 ft |
| Dam Height | 81 ft |
| Dam Length | 2,110 ft |
| Year Completed | 1942 (84 years old) |
Storage & Hydraulics
| NID Storage | 50,000 acre-ft |
| Max Storage | 50,000 acre-ft |
| Normal Storage | 33,000 acre-ft |
| Surface Area | 1,158 acres |
| Drainage Area | 104 sq mi |
| Max Discharge | 40,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USACE - Portland District |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 04/19/2022 |
| Emergency Action Plan | Yes |