Upper Locust Creek W-185 Reservoir Report
Last Updated: December 20, 2025
Upper Locust Creek W-185 is a local government-owned earth dam located in Sullivan, Missouri, designed by the USDA NRCS.
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Summary
Completed in 2003, this flood risk reduction structure stands at a height of 23 feet with a structural height of 28 feet and a hydraulic height of 21 feet. It has a storage capacity of 78 acre-feet and serves multiple purposes including fire protection, stock or small fish pond, fish and wildlife pond, and flood risk reduction.
Situated on the TR-Locust Creek, this dam has a drainage area of 360 acres and a maximum discharge of 122.5 cubic feet per second. The spillway type is uncontrolled with a width of 20 feet. Although the hazard potential is rated as low and the condition assessment is not rated, the risk assessment is moderate. The structure has not been inspected since November 2004 with an inspection frequency of 5 years. Overall, Upper Locust Creek W-185 plays a crucial role in managing water resources and reducing flood risks in the area.
Managed by the Natural Resources Conservation Service, this dam not only provides flood protection but also supports various ecological functions. With its strategic location and design, the Upper Locust Creek W-185 contributes to the sustainable management of water resources and climate resilience in the region. Despite its low hazard potential, regular inspections and risk assessments are essential to ensure the continued effectiveness of this vital infrastructure for the community of Sumner and surrounding areas.
Year Completed |
2003 |
Dam Length |
430 |
Dam Height |
23 |
River Or Stream |
TR-LOCUST CREEK |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
21 |
Drainage Area |
360 |
Nid Storage |
78 |
Structural Height |
28 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Medicine Creek Near Laredo
|
6cfs |
Thompson River At Trenton
|
111cfs |
Locust Creek Near Linneus
|
35cfs |
Chariton River At Novinger
|
48cfs |
Grand River At Chillicothe
|
361cfs |
Chariton River At Livonia
|
45cfs |
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 W-185