West Fork Big Creek Dam B-143 Reservoir Report
Last Updated: December 19, 2025
West Fork Big Creek Dam B-143, located in Bridgeport, Missouri, was completed in 2004 with the primary purpose of flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam, designed by the USDA NRCS, stands at a height of 29 feet and has a storage capacity of 76.3 acre-feet. The dam, situated on the West Fork Big Creek, serves to mitigate the impact of potential flooding in the region, contributing to the overall water resource management efforts in Harrison County.
With a low hazard potential and a moderate risk assessment, West Fork Big Creek Dam B-143 plays a vital role in ensuring the safety and security of the surrounding area. The dam features an uncontrolled spillway and outlet gates, emphasizing its focus on flood risk reduction. While the dam is not state regulated or inspected, it stands as a testament to effective local government ownership and management of water resources, showcasing the importance of proactive infrastructure for climate resilience.
As an essential component of the Rock Island District's water infrastructure, West Fork Big Creek Dam B-143 serves as a critical asset in the region's flood risk reduction strategy. With its strategic location, structural design, and capacity for flood control, the dam represents a significant investment in safeguarding communities and ecosystems against the impacts of extreme weather events. Its completion in 2004 marked a milestone in the ongoing efforts to enhance water resource management and climate adaptation in Harrison County, Missouri.
Year Completed |
2004 |
Dam Length |
580 |
Dam Height |
29 |
River Or Stream |
WEST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
29 |
Drainage Area |
85 |
Nid Storage |
76.3 |
Structural Height |
33 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
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-143