Timber Lake is an earth dam located in Clackamas County, Oregon. It carries a Significant hazard potential classification.
Dam profile
NID height · 46 ft46 ft tall and 440 ft long, taller than 91% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Timber Lake
The primary purpose of Timber Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usda Fs (federal). It impounds the Bull Creek near Tree-lynx.
The dam stands 46 feet tall and stretches 440 feet across, and has a maximum storage capacity of 390 acre-feet.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 08/13/2015. That was over 11 years ago.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Oregon |
| County | Clackamas |
| Nearest City | Tree-lynx |
| River/Stream | Bull Creek |
| Coordinates | 45.09186, -122.06680 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 440 ft |
Storage & Hydraulics
| NID Storage | 390 acre-ft |
| Max Storage | 390 acre-ft |
| Normal Storage | 180 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 08/13/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00281 |
| Federal ID | OR00281 |
| More Info | State Dam Safety Program |