Reflection Lake South Dam Reservoir Report
Last Updated: December 15, 2025
Reflection Lake South Dam, located in Spokane, Washington, serves as a recreational hotspot surrounded by the serene Sheets Creek.
°F
°F
mph
Wind
%
Humidity
Summary
This private dam, completed in 1955, stands at a structural height of 18.7 feet with a hydraulic height of 28 feet, providing a storage capacity of 570 acre-feet. The dam's primary purpose is for recreation, offering a surface area of 58 acres and a drainage area of 0.65 square miles.
Despite its fair condition assessment in 2019, the dam poses a high hazard potential, prompting inspections every 5 years to ensure safety. Under the jurisdiction of the Washington Department of Ecology, the dam's operations are regulated, permitted, and inspected by the state. The dam's Emergency Action Plan was last revised in January 2021, emphasizing the importance of preparedness in case of emergencies.
Reflecting the beauty of its surroundings, Reflection Lake South Dam stands as a testament to both the importance of water resources for recreation and the necessity of climate resilience in the face of potential hazards. As a cherished landmark in Milan, this Earth dam continues to attract water resource and climate enthusiasts alike, highlighting the harmonious balance between human enjoyment and environmental stewardship.
Year Completed |
1955 |
Dam Length |
760 |
River Or Stream |
Sheets Creek |
Primary Dam Type |
Earth |
Surface Area |
58 |
Hydraulic Height |
28 |
Drainage Area |
0.65 |
Nid Storage |
570 |
Structural Height |
18.7 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Spokane River At Elk
|
48cfs |
Little Spokane River At Dartford
|
213cfs |
Little Spokane River Near Dartford
|
515cfs |
Pend Oreille River At Newport Wa
|
26000cfs |
Spokane River Below Nine Mile Dam At Spokane
|
18800cfs |
Priest River Nr Priest River Id
|
2020cfs |
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.
Reflection Lake South Dam