Upper Locust Creek W- 40 Reservoir Report
Last Updated: December 11, 2025
Upper Locust Creek W-40, located in Putnam County, Missouri, is a local government-owned earth dam designed by USDA NRCS for flood risk reduction along the TR-West Fork Locust Creek.
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Summary
Completed in 1993, this dam stands at a height of 30 feet and spans 455 feet in length, providing a storage capacity of 153 acre-feet and serving a drainage area of 40 square miles. With a spillway width of 40 feet and a maximum discharge of 100 cubic feet per second, this dam is classified as having a low hazard potential and a moderate risk assessment rating.
Despite its low hazard potential, Upper Locust Creek W-40 has not been rated for its condition assessment, and there is no Emergency Action Plan (EAP) in place. However, the dam meets guidelines for risk management measures, suggesting that appropriate steps are being taken to ensure its safety and functionality. The dam's location in a region represented by Sam Graves (R) and its association with the Rock Island District of the USACE highlight its importance in mitigating flood risks and protecting the surrounding community of Browning. Water resource and climate enthusiasts will find interest in the design and engineering of this critical infrastructure for flood control and management in the region.
Year Completed |
1993 |
Dam Length |
455 |
Dam Height |
27.5 |
River Or Stream |
TR-WEST FORK LOCUST CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
25 |
Drainage Area |
40 |
Nid Storage |
153 |
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.
Upper Locust Creek W- 40