West Fork Big Creek Dam S- 36 Reservoir Report
Last Updated: December 13, 2025
West Fork Big Creek Dam S-36, located in Harrison, Missouri, was completed in 2008 by the USDA NRCS as a crucial flood risk reduction measure along Shain Creek.
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Summary
This earth dam stands at 30.3 feet in height, with a structural height of 36 feet and a length of 400 feet, providing a maximum storage capacity of 72.1 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition, and its emergency action plan (EAP) status remains uncertain.
With a primary purpose of flood risk reduction, West Fork Big Creek Dam S-36 serves as a vital infrastructure in protecting the surrounding area from potential water-related disasters. Although not state-regulated or inspected, the dam plays a crucial role in managing the flow of Shain Creek and mitigating flood risks for the community of Brooklyn. The dam's uncontrolled spillway, with a width of 40 feet, allows for the safe release of excess water in times of heavy rainfall, further enhancing its flood protection capabilities.
As a privately-owned structure, West Fork Big Creek Dam S-36 showcases the collaborative efforts between federal agencies, such as the Natural Resources Conservation Service, in building and maintaining essential water resource infrastructure. Its strategic location and design elements contribute to the overall resilience of the region against flood events, highlighting the importance of proactive flood risk management in the face of changing climate patterns.
Year Completed |
2008 |
Dam Length |
400 |
Dam Height |
30.3 |
River Or Stream |
SHAIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
30 |
Drainage Area |
140 |
Nid Storage |
72.1 |
Structural Height |
36 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
36 |
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.
West Fork Big Creek Dam S- 36