Upper Locust Creek L-105 Reservoir Report

Last Updated: December 11, 2025

Upper Locust Creek L-105 is a flood risk reduction structure located in Putnam, Missouri, designed by USDA NRCS and completed in 1991.


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Summary

This earth dam stands at a height of 29 feet and has a length of 470 feet, with a storage capacity of 139 acre-feet. Situated on the TR-Locust Creek, this structure plays a crucial role in managing water flow and reducing the risk of flooding in the area.

With a low hazard potential and a moderate risk assessment rating, Upper Locust Creek L-105 is designed to withstand the challenges posed by its environment. Despite not being regulated by the state, this structure serves as a key asset in protecting the surrounding community from potential flood events. The dam's uncontrolled spillway and lack of outlet gates indicate a simple yet effective design focused on flood risk reduction.

As a water resource and climate enthusiast, the details of Upper Locust Creek L-105 offer insight into the engineering and planning involved in managing water flow in Missouri. The structure's location, design features, and storage capacity all contribute to its importance in mitigating flood risks and ensuring the safety of the local residents. This dam stands as a testament to the ongoing efforts to protect communities from the impacts of extreme weather events and changing climatic conditions.

Year Completed

1991

Dam Length

470

Dam Height

29

River Or Stream

TR-LOCUST CREEK

Primary Dam Type

Earth

Surface Area

2

Hydraulic Height

29

Drainage Area

55

Nid Storage

139

Structural Height

29

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

29
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.