Middle Pine Lake Dam Reservoir Report
Last Updated: December 13, 2025
Middle Pine Lake Dam, located in Spokane, Washington, is a Federal-owned structure managed by the Fish and Wildlife Service.
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Summary
Built in 1938 as part of a WPA project, this Earth-type dam stands at 11 feet tall and stretches 800 feet in length, creating a Fish and Wildlife Pond for conservation purposes. The dam has a storage capacity of 145 acre-feet and covers a surface area of 24 acres, serving as a vital resource for the local ecosystem.
Despite its low hazard potential, Middle Pine Lake Dam is currently in poor condition as of the last assessment in 2013. The dam is classified as having a low risk level, with a maximum discharge rate of 276 cubic feet per second. It is equipped with Other Controlled outlet gates and has a spillway width of 54 feet. Although it is not regulated by the state, the dam is inspected every 5 years to ensure its structural integrity and safety.
Middle Pine Lake Dam plays a crucial role in maintaining the ecological balance of the area, providing habitat for fish and wildlife. While it faces some maintenance challenges, efforts are being made to preserve and protect this essential water resource for future generations of climate and water enthusiasts to enjoy.
Year Completed |
1938 |
Dam Length |
800 |
Dam Height |
11 |
River Or Stream |
PINE CREEK |
Primary Dam Type |
Earth |
Surface Area |
24 |
Hydraulic Height |
11 |
Drainage Area |
33.7 |
Nid Storage |
145 |
Structural Height |
11 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
11 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Middle Pine Lake Dam