West Fork Big Creek Dam P- 24 Reservoir Report
Last Updated: January 3, 2026
West Fork Big Creek Dam P-24, located in Harrison, Missouri, was completed in 2003 with a primary purpose of flood risk reduction.
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Summary
The dam, owned by the local government and designed by USDA NRCS, is an earth-type structure with a height of 27 feet and a length of 520 feet. It has a storage capacity of 61 acre-feet and covers a surface area of 14 acres, serving a drainage area of 130 square miles along the TR-Little Polecat river.
Despite being classified as having a low hazard potential and not currently rated for condition assessment, West Fork Big Creek Dam P-24 is equipped with uncontrolled spillways and outlet gates. The dam has a moderate risk assessment rating of 3 and has not been inspected since January 2004. With a designated emergency action plan and contact information yet to be updated, the dam plays a critical role in managing flood risk in the area under the jurisdiction of the Rock Island District.
Enthusiasts of water resources and climate will find West Fork Big Creek Dam P-24 to be an essential piece of infrastructure in Harrison, Missouri, contributing to flood risk reduction efforts along the TR-Little Polecat river. As part of the local government's portfolio, this earth-type dam serves a vital purpose in protecting the surrounding area from potential inundation, despite its moderate risk assessment and the need for updated emergency action plans. With a history dating back to 2003, the dam stands as a testament to the ongoing challenges and responsibilities faced in managing water resources and climate impacts in the region.
Year Completed |
2003 |
Dam Length |
520 |
Dam Height |
27 |
River Or Stream |
TR-LITTLE POLECAT |
Primary Dam Type |
Earth |
Surface Area |
14 |
Hydraulic Height |
27 |
Drainage Area |
130 |
Nid Storage |
61 |
Structural Height |
29 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
East Fork Big Creek Near Bethany
|
6cfs |
Thompson River At Trenton
|
198cfs |
Grand River Near Gallatin
|
107cfs |
Thompson River At Davis City
|
22cfs |
Medicine Creek Near Laredo
|
46cfs |
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 P- 24