Troublesome Creek Watershed Dam T-121 Reservoir Report
Last Updated: December 11, 2025
Located in Knox County, Missouri, Troublesome Creek Watershed Dam T-121 is a vital structure designed by the USDA NRCS to address flood risk reduction in the region.
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Summary
Completed in 1992, this earth dam stands at a height of 20 feet and spans a length of 532 feet, with a maximum storage capacity of 89 acre-feet. Serving a primary purpose of flood risk reduction, the dam also supports fish and wildlife pond activities, showcasing its multifaceted benefits to the local ecosystem.
With a low hazard potential and a moderate risk assessment rating, Troublesome Creek Watershed Dam T-121 plays a crucial role in managing water resources in the area. Despite not being state regulated or inspected, the dam has been deemed structurally sound and has not been assigned a condition assessment rating. While there are no associated structures or outlet gates, the dam's uncontrolled spillway and ample storage capacity help mitigate the risk of flooding and ensure the safety of the surrounding community.
As a key feature in the Rock Island District managed by the local government, Troublesome Creek Watershed Dam T-121 stands as a testament to effective water resource management and flood control efforts in Missouri. With its strategic location on Troublesome Creek and its impressive design specifications, this dam continues to serve as a valuable asset for both flood risk reduction and ecological preservation in the region.
Year Completed |
1992 |
Dam Length |
532 |
Dam Height |
20 |
River Or Stream |
TROUBLESOME CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
20 |
Drainage Area |
90 |
Nid Storage |
89 |
Structural Height |
25 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Salt River At Hagers Grove
|
113cfs |
Wyaconda River Above Canton
|
13cfs |
Salt River Near Shelbina
|
210cfs |
South Fabius River Near Taylor
|
12cfs |
Long Branch Creek Near Atlanta
|
0cfs |
North River At Palmyra
|
19cfs |
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 T-121