West Fork Big Creek Dam B-101 Reservoir Report
Last Updated: December 17, 2025
West Fork Big Creek Dam B-101, located in Harrison County, Missouri, is a crucial infrastructure designed by the USDA NRCS in 1991 for flood risk reduction along the West Fork Big Creek.
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Summary
This earth-type dam stands at a height of 30 feet and spans a length of 470 feet, with a storage capacity of 128 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam's condition is currently not rated, signaling a need for further inspection and maintenance to ensure its long-term effectiveness in flood control.
Owned by the local government and regulated by the state, West Fork Big Creek Dam B-101 plays a vital role in protecting the surrounding area from potential flooding events. With a spillway width of 52 feet and a maximum discharge capacity of 450 cubic feet per second, the dam is equipped to handle excess water flow during heavy rainfall. Although it lacks outlet gates and has not been inspected recently, the dam remains a key asset in the region's water resource management infrastructure.
While West Fork Big Creek Dam B-101 has not been significantly modified since its completion, its significance in flood risk reduction cannot be understated. With a surface area of 3 acres and a drainage area of 130 square miles, the dam serves as a critical line of defense against potential flooding hazards in the area. As efforts continue to assess and maintain the dam's condition, its role in safeguarding the community from water-related disasters remains paramount for water resource and climate enthusiasts alike.
Year Completed |
1991 |
Dam Length |
470 |
Dam Height |
30 |
River Or Stream |
TR-WEST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
30 |
Drainage Area |
130 |
Nid Storage |
128 |
Structural Height |
31 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
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-101