East Locust Creek Watershed Dam E- 81 Reservoir Report

Last Updated: December 17, 2025

East Locust Creek Watershed Dam E-81, located in Sullivan, Missouri, is a strategic flood risk reduction infrastructure designed by the USDA NRCS and completed in 1990.


°F

°F

mph

Wind

%

Humidity

Summary

The dam, primarily owned and operated by local government, stands at a height of 29 feet with a length of 490 feet, providing a storage capacity of 134 acre-feet to mitigate potential flooding along the TR-East Locust Creek. The dam's low hazard potential and moderate risk assessment make it a crucial element in managing water resources in the region.

Constructed with an earth core and stone foundation, East Locust Creek Watershed Dam E-81 features an uncontrolled spillway with a width of 26 feet. Despite its last inspection dating back to May 1991, the dam's condition assessment remains ungraded. With a drainage area of 262.4 square miles and a normal storage capacity of 38 acre-feet, the dam plays a crucial role in safeguarding the local community against flood events. While the dam's emergency action plan status and risk management measures are unspecified, its presence serves as a vital component in the overall water resource management strategy in the area.

Managed by the Natural Resources Conservation Service, East Locust Creek Watershed Dam E-81 operates with no outlet gates and has not undergone any significant modifications since its completion. With a congressman representative of Sam Graves (R) and a designated purpose of flood risk reduction, the dam's strategic location and design contribute to the overall resilience of the region's water infrastructure. Despite lacking recent inspection data, the dam's importance in water resource management and climate resilience for the local community cannot be understated.

Year Completed

1990

Dam Length

490

Dam Height

29

River Or Stream

TR-EAST LOCUST CREEK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

29

Drainage Area

262.4

Nid Storage

134

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.