Timothy Lake
Oregon — Clackamas County — Oak Grove River
Location
| State | Oregon |
| County | Clackamas |
| River | Oak Grove River |
| Coordinates | 45.11360, -121.80670 |
Physical Characteristics
| NID Height | 100 ft |
| Dam Height | 100 ft |
| Dam Length | 740 ft |
| NID Storage | 69,000 acre-ft |
| Max Storage | 69,000 acre-ft |
| Surface Area | 1,430 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | September 20, 2022 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1956 |
| Primary Purpose | Hydroelectric |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Portland General Electric Company |
| Other Name | Timothy Lake (Res) |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.