West Fork Big Creek Dam B-112 Reservoir Report
Last Updated: December 17, 2025
West Fork Big Creek Dam B-112, also known as Site B-112, is a local government-owned structure located in Bethany, Missouri.
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Summary
Built in 1994 by the USDA NRCS, this Earth-type dam stands at a height of 27.5 feet and serves primarily for flood risk reduction along the West Fork Big Creek. With a storage capacity of 150 acre-feet and a normal storage level of 38 acre-feet, this dam plays a crucial role in managing water resources in the area.
Despite being categorized as having a low hazard potential, West Fork Big Creek Dam B-112 is considered to have a moderate risk level. The dam features an uncontrolled spillway with a width of 28 feet and has not been rated in terms of its current condition. While there are no associated structures, the dam covers a surface area of 28 acres and has a drainage area of 2532 acres. With a maximum discharge capacity of 352 cubic feet per second, this dam plays a vital role in mitigating flood risks in the region.
For water resource and climate enthusiasts, West Fork Big Creek Dam B-112 presents an intriguing case study in flood risk reduction and water management. Situated in Harrison County, Missouri, this dam exemplifies the collaborative efforts between local government and federal agencies like the USDA NRCS in safeguarding communities against potential flooding events. With its strategic location and design features, this dam stands as a testament to the importance of resilient infrastructure in adapting to the challenges posed by climate change and extreme weather events.
Year Completed |
1994 |
Dam Length |
460 |
Dam Height |
27.5 |
River Or Stream |
TR-WEST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
28 |
Hydraulic Height |
27.5 |
Drainage Area |
2532 |
Nid Storage |
150 |
Structural Height |
30 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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-112