Middle Pine Lake Dam is an earth dam located in Spokane County, Washington, built in 1938. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 11 ft11 ft tall and 800 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Middle Pine Lake Dam
The primary purpose of Middle Pine Lake Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by US Fish and Wildlife Service (federal). It impounds the Pine Creek.
The dam stands 11 feet tall and stretches 800 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 145 acre-feet, and collects water from a drainage area of 33 square miles. Completed in 1938, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 10/29/2013. That was over 12 years ago.
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Location
| State | Washington |
| County | Spokane |
| River/Stream | Pine Creek |
| Coordinates | 47.41083, -117.53722 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 800 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 145 acre-ft |
| Max Storage | 145 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 33 sq mi |
| Max Discharge | 276 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | US Fish and Wildlife Service |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 10/29/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA01253 |
| Federal ID | WA01253 |
| More Info | State Dam Safety Program |