West Fork Big Creek Dam B-152 Reservoir Report
Last Updated: December 18, 2025
West Fork Big Creek Dam B-152, located in Pattonsburg, Missouri, was completed in 1999 and serves as a crucial flood risk reduction structure along the Poor Tom Branch river.
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Summary
Owned by the local government, this earth dam stands at a height of 30 feet and has a structural height of 34 feet, with a maximum storage capacity of 82 acre-feet. The dam covers a surface area of 9 acres and has a drainage area of 200 square miles, providing protection to the surrounding community from potential flooding events.
Managed by the USDA NRCS, West Fork Big Creek Dam B-152 has a low hazard potential and a moderate risk assessment rating. With an uncontrolled spillway and no outlet gates, the dam is designed to handle a maximum discharge of 142 cubic feet per second. While the dam's condition is currently not rated, regular inspections are conducted to ensure its structural integrity and safety. Despite not being regulated by the state, the dam plays a vital role in mitigating flood risks in the region and is a key component of the local water resource management infrastructure.
Overall, West Fork Big Creek Dam B-152 stands as a testament to effective flood risk reduction efforts in Harrison County, Missouri. With its primary purpose being flood risk reduction, this earth dam continues to provide essential protection to the community while being a part of the larger water resource management system in the area. As climate change impacts become more prevalent, structures like West Fork Big Creek Dam B-152 will only grow in importance in safeguarding communities and ecosystems from the threats of flooding.
Year Completed |
1999 |
Dam Length |
570 |
Dam Height |
30 |
River Or Stream |
POOR TOM BRANCH |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
30 |
Drainage Area |
200 |
Nid Storage |
82 |
Structural Height |
34 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
East Fork Big Creek Near Bethany
|
2cfs |
Grand River Near Gallatin
|
61cfs |
Thompson River At Trenton
|
152cfs |
Thompson River At Davis City
|
22cfs |
Medicine Creek Near Laredo
|
18cfs |
Grand River At Chillicothe
|
361cfs |
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-152