Upper Locust Creek W-218 Reservoir Report

Last Updated: December 24, 2025

Upper Locust Creek W-218, located in Sullivan, Missouri, is a flood risk reduction structure designed by the USDA NRCS and completed in 1993.


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Summary

This earth dam stands at 27.5 feet tall with a hydraulic height of 25 feet and a structural height of 32 feet. It spans 563 feet in length and has a storage capacity of 113 acre-feet, serving a drainage area of 100 acres along the TR-West Locust Creek.

Despite its low hazard potential and moderate risk assessment, Upper Locust Creek W-218 has not been rated for condition assessment. The dam features an uncontrolled spillway with a width of 24 feet and has not been modified since completion. While it currently does not have outlet gates or associated structures, this dam plays a crucial role in mitigating flood risks and protecting the surrounding area, making it a valuable asset for water resource and climate enthusiasts to study and monitor.

Year Completed

1993

Dam Length

563

Dam Height

27.5

River Or Stream

TR-WEST LOCUST CREK

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

25

Drainage Area

100

Nid Storage

113

Structural Height

32

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

32
       
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.