Troublesome Creek Watershed Dam S- 80 Reservoir Report
Last Updated: December 5, 2025
Located in the heart of the Troublesome Creek Watershed in Ewing, Missouri, Dam S-80 stands as a critical infrastructure for flood risk reduction.
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Summary
Constructed in 1994 by the USDA NRCS, this earth dam boasts a structural height of 34 feet and a length of 560 feet, with a storage capacity of 190 acre-feet. The dam serves multiple purposes including fire protection, stock maintenance, and fish and wildlife conservation, in addition to its primary function of flood risk mitigation.
Despite its low hazard potential, Dam S-80 plays a crucial role in safeguarding the surrounding area from potential flooding events, with a maximum discharge capacity of 308 cubic feet per second. The dam's uncontrolled spillway, with a width of 40 feet, ensures effective water management during heavy rainfall. With a drainage area of 262.4 square miles and a normal storage capacity of 59 acre-feet, this dam is a vital component of the local water resource infrastructure.
While Dam S-80 has not been rated for its condition assessment, its risk assessment remains moderate, emphasizing the importance of regular inspections and maintenance. With its strategic location and key role in flood risk reduction, this dam serves as a testament to the critical importance of sustainable water resource management in the face of changing climate patterns.
Year Completed |
1994 |
Dam Length |
560 |
Dam Height |
31 |
River Or Stream |
TROUBLESOME CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
30 |
Drainage Area |
262.4 |
Nid Storage |
190 |
Structural Height |
34 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Fabius River Near Taylor
|
12cfs |
Wyaconda River Above Canton
|
13cfs |
North River At Palmyra
|
21cfs |
Salt River Near Shelbina
|
30cfs |
Salt River At Hagers Grove
|
1cfs |
Bear Creek Near Marcelline
|
5cfs |
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.
Troublesome Creek Watershed Dam S- 80