Troublesome Creek Watershed Dam R- 26 Reservoir Report
Last Updated: December 6, 2025
Troublesome Creek Watershed Dam R-26 in Marion, Missouri, stands as a vital structure in flood risk reduction, completed in 1999 under the guidance of the USDA NRCS.
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Summary
This earth-type dam, with a height of 24 feet and a length of 380 feet, serves primarily for flood risk reduction purposes, holding a storage capacity of 69 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition, and no emergency action plan has been prepared as of yet.
Located in the Rock Island District and regulated by the state of Missouri, Troublesome Creek Watershed Dam R-26 plays a crucial role in protecting the surrounding area from potential floods. With a maximum discharge of 133.3 cubic feet per second and an uncontrolled spillway, this dam ensures the safety of the community during times of high water flow. However, the lack of regular inspections and a current condition assessment raises concerns about the long-term reliability of this structure. As such, it is essential for the local government to prioritize the maintenance and upkeep of this watershed dam to ensure its continued effectiveness in flood risk mitigation.
Year Completed |
1999 |
Dam Length |
380 |
Dam Height |
24 |
River Or Stream |
TROUBLESOME CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
24 |
Drainage Area |
210 |
Nid Storage |
69 |
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 |
North River At Palmyra
|
21cfs |
Wyaconda River Above Canton
|
13cfs |
Salt River Near Shelbina
|
30cfs |
Bear Creek Near Marcelline
|
5cfs |
Bear Creek At Hannibal
|
2cfs |
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 R- 26