West Fork Big Creek Dam B-142 Reservoir Report
Last Updated: December 19, 2025
West Fork Big Creek Dam B-142, located in Harrison County, Missouri, serves as a crucial infrastructure for flood risk reduction along Fleenor Branch.
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Summary
Constructed in 2000 by the USDA NRCS, this earthen dam stands at a height of 20 feet and spans 575 feet in length, with a maximum storage capacity of 59.6 acre-feet. Despite being categorized as having a low hazard potential, the dam plays a significant role in mitigating flood risks within the region, with a moderate risk assessment rating of 3.
With a primary purpose of flood risk reduction, West Fork Big Creek Dam B-142 is designed to withstand the hydraulic pressures of its surroundings, with an uncontrolled spillway and other controlled outlet gates for effective water management. The dam's structural integrity is regularly monitored, with the last inspection conducted in August 2000. While the dam's condition assessment is currently listed as "not rated," its risk management measures are in place to address any potential hazards that may arise in the future.
As a key component of the local government's water resource management strategy, West Fork Big Creek Dam B-142 exemplifies the collaborative efforts between state and federal agencies in safeguarding communities against the impacts of extreme weather events. With a focus on flood risk reduction and a commitment to ensuring public safety, this dam stands as a testament to the importance of sustainable water infrastructure in the face of a changing climate.
Year Completed |
2000 |
Dam Length |
575 |
Dam Height |
20 |
River Or Stream |
FLEENOR BRANCH |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
20 |
Drainage Area |
120 |
Nid Storage |
59.6 |
Structural Height |
22 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
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.
West Fork Big Creek Dam B-142