Troublesome Cr Watershed Site 42-2 Reservoir Report
Last Updated: December 13, 2025
Troublesome Cr Watershed Site 42-2 is a local government-owned structure located in Audubon, Iowa, specifically in the city of Atlantic.
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Summary
This earth-type dam, designed by USDA NRCS and completed in 1979, serves multiple purposes including fire protection, stock, small fish pond maintenance, and flood risk reduction. With a dam height of 38 feet and a length of 443 feet, this structure has a normal storage capacity of 54 acre-feet and covers a surface area of 4.8 acres, draining a 0.32 square mile watershed area.
Managed by the Iowa Department of Natural Resources, Troublesome Cr Watershed Site 42-2 has a low hazard potential and a moderate risk assessment rating. Despite not being rated for its condition, this dam is inspected, permitted, and regulated by state agencies to ensure its safe operation. The structure is situated along the TR-East Nishnabotna River, within the Rock Island District, and falls under the jurisdiction of Representative Steve King (R). Overall, Troublesome Cr Watershed Site 42-2 plays a crucial role in water resource management and climate resilience efforts in the region.
Year Completed |
1979 |
Dam Length |
443 |
Dam Height |
38 |
River Or Stream |
TR-EAST NISHNABOTNA RIVER |
Primary Dam Type |
Earth |
Surface Area |
4.8 |
Drainage Area |
0.32 |
Nid Storage |
124 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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 Cr Watershed Site 42-2