Troublesome Creek Watershed Dam S- 89 Reservoir Report
Last Updated: December 6, 2025
Troublesome Creek Watershed Dam S- 89 is a vital flood risk reduction structure located in Lewis, Missouri, designed by the USDA NRCS and completed in 1995.
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Summary
This earth dam stands at a height of 26 feet, with a hydraulic height of 25 feet and a structural height of 37 feet. It spans a length of 550 feet and has a storage capacity of 180 acre-feet, serving multiple purposes including fire protection, stock and wildlife ponds, in addition to flood risk reduction.
With a drainage area of 1100 acres and a maximum discharge of 323 cubic feet per second, Troublesome Creek Watershed Dam S- 89 plays a crucial role in managing water flow and mitigating flooding in the region. The dam's spillway, measuring 40 feet wide, ensures controlled water release during periods of high flow. Despite being classified as having a low hazard potential and a moderate risk assessment rating, the dam's condition remains unrated as of the last inspection conducted in 1999.
As a significant piece of infrastructure in the Rock Island District, Troublesome Creek Watershed Dam S- 89 stands as a testament to the collaborative efforts of local government agencies and the USDA NRCS in safeguarding communities against the impacts of extreme weather events. Its strategic location along Troublesome Creek underscores its importance in maintaining the ecological balance and water resource sustainability in the region.
Year Completed |
1995 |
Dam Length |
550 |
Dam Height |
26 |
River Or Stream |
TROUBLESOME CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
25 |
Drainage Area |
1100 |
Nid Storage |
180 |
Structural Height |
37 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
37 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Fabius River Near Taylor
|
12cfs |
North River At Palmyra
|
21cfs |
Salt River Near Shelbina
|
30cfs |
Wyaconda River Above Canton
|
13cfs |
Salt River At Hagers Grove
|
1cfs |
Crooked Creek Near Paris
|
1cfs |
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- 89