South Fork Mccorkle Creek Detention Dam Reservoir Report
Last Updated: December 15, 2025
South Fork Mccorkle Creek Detention Dam, located in Lexington, Washington, is a crucial structure owned by the local government to reduce flood risks in the area.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1989, this earth dam stands at a hydraulic height of 22 feet and a length of 625 feet, with a storage capacity of 322 acre-feet. Situated on the South Fork McCorkle Creek, this dam plays a vital role in protecting the surrounding communities from potential flooding events.
With a hazard potential rated as "high" and a fair condition assessment as of 2015, the South Fork Mccorkle Creek Detention Dam is regularly inspected to ensure its structural integrity. The Washington Department of Ecology is the regulatory agency responsible for overseeing the dam's operations, inspections, and enforcement. While the dam has not been modified in recent years, emergency action plans and risk management measures are key components to consider for enhancing safety preparedness and response in case of emergencies.
Congressional District 03, represented by Jaime Herrera Beutler, encompasses the area where the dam is located, highlighting the importance of federal and state collaboration in managing water resources and mitigating climate-related risks. As water resource and climate enthusiasts, understanding and advocating for the maintenance and improvement of critical infrastructure like the South Fork Mccorkle Creek Detention Dam is essential for ensuring the resilience of communities in the face of changing environmental conditions.
Year Completed |
1989 |
Dam Length |
625 |
River Or Stream |
South Fork McCorkle Creek |
Primary Dam Type |
Earth |
Surface Area |
0.1 |
Hydraulic Height |
22 |
Drainage Area |
1.67 |
Nid Storage |
322 |
Structural Height |
22 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
22 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Hudson - Parcher County Park
|
||
Seaquest State Park
|
||
Seaquest State Park Campground
|
||
Yurt Village
|
South Fork Mccorkle Creek Detention Dam