East Locust Creek Watershed Dam E- 69 Reservoir Report
Last Updated: December 17, 2025
East Locust Creek Watershed Dam E-69, located in Milan, Missouri, was completed in 1988 by the USDA NRCS and serves as a crucial flood risk reduction structure along the TR-East Locust Creek.
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Summary
This earth dam stands at a height of 33 feet with a length of 320 feet, providing a storage capacity of 47 acre-feet and a drainage area of 185.6 square miles. Despite its low hazard potential and moderate risk assessment, the dam's condition has not been rated, and it lacks an Emergency Action Plan (EAP) and updated inundation maps.
Managed by the local government, East Locust Creek Watershed Dam E-69 features an uncontrolled spillway with a width of 28 feet and no outlet gates. The dam's primary purpose is flood risk reduction, aligning with its design and construction standards set by the Natural Resources Conservation Service. With a surface area of 6 acres and a maximum discharge of 159 cubic feet per second, this structure plays a vital role in safeguarding the surrounding area from potential flooding events. As a notable project of the Rock Island District, the dam contributes to the overall water resource management efforts in the region.
For water resource and climate enthusiasts, East Locust Creek Watershed Dam E-69 presents an opportunity to explore the intersection of infrastructure development and environmental conservation. As a part of the larger watershed management system, this dam not only helps mitigate flood risks but also supports the sustainable use of water resources in Sullivan County, Missouri. By understanding the design, purpose, and operational aspects of this earth dam, enthusiasts can appreciate the intricate balance between human intervention and natural processes in shaping resilient water systems.
Year Completed |
1988 |
Dam Length |
320 |
Dam Height |
33 |
River Or Stream |
TR-EAST LOCUST CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
33 |
Drainage Area |
185.6 |
Nid Storage |
47 |
Structural Height |
33 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chariton River At Novinger
|
71cfs |
Medicine Creek Near Laredo
|
15cfs |
Locust Creek Near Linneus
|
36cfs |
Chariton River At Livonia
|
45cfs |
Thompson River At Trenton
|
140cfs |
Chariton River Near Moulton
|
34cfs |
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.
East Locust Creek Watershed Dam E- 69