Upper Locust Creek L- 75 Reservoir Report
Last Updated: December 11, 2025
Upper Locust Creek L- 75, located in Putnam, Missouri, is a flood risk reduction dam constructed in 1997 by the USDA NRCS.
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Summary
This earth dam stands at a height of 27.7 feet and serves the primary purpose of flood risk reduction along the TR-East Fork Locust Creek. With a normal storage capacity of 21 acre-feet and a maximum discharge of 173 cubic feet per second, this structure plays a crucial role in managing water flow and protecting the surrounding area from potential flooding.
Despite its low hazard potential and moderate risk assessment, Upper Locust Creek L- 75 has not been rated for its current condition. This dam, made of stone core and resting on a soil foundation, has a controlled spillway with a width of 30 feet. While there are no associated locks or outlet gates, the structure's design and purpose highlight its importance in safeguarding the local community from the impacts of extreme weather events. Water resource and climate enthusiasts will appreciate the vital role that this dam plays in mitigating flood risks and ensuring the resilience of the area's water infrastructure.
Managed by the Natural Resources Conservation Service, Upper Locust Creek L- 75 is a significant asset in the region's flood management system. With a drainage area of 117 square miles and a surface area of 5 acres, this dam provides essential protection for the surrounding area. As climate change continues to impact water resources, structures like Upper Locust Creek L- 75 will become increasingly vital in safeguarding communities and ecosystems from the challenges posed by changing weather patterns and increasing flood risks.
Year Completed |
1997 |
Dam Length |
490 |
Dam Height |
27.7 |
River Or Stream |
TR-EAST FORK LOCUST CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
27 |
Drainage Area |
117 |
Nid Storage |
69 |
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 L- 75