Troublesome Cr Watershed Site 86-1 Reservoir Report
Last Updated: December 14, 2025
Troublesome Cr Watershed Site 86-1, located in Audubon County, Iowa, is a crucial earth dam constructed in 1992 for fire protection, stock, and small fish pond purposes.
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Summary
Managed by the local government and designed by the USDA NRCS, this dam serves as a vital component for flood risk reduction in the area. With a height of 33 feet and a storage capacity of 219 acre-feet, this structure plays a significant role in managing water resources in the region.
Situated along the TR-EAST NISHNABOTNA RIVER, Troublesome Cr Watershed Site 86-1 spans over 622 feet in length and covers an impressive surface area of 8.1 acres. Despite being categorized as low hazard potential, the dam is subject to regular state regulation, inspection, and enforcement by the Iowa DNR. With a moderate risk assessment score of 3, this site underscores the importance of proactive risk management measures to ensure the safety and integrity of the structure.
Despite its uncontrolled spillway type and lack of outlet gates, Troublesome Cr Watershed Site 86-1 remains a critical asset for water resource management in the area. As climate change continues to impact the frequency and intensity of extreme weather events, this dam serves as a key infrastructure for mitigating flood risks and protecting local communities. Its strategic location and design make it a valuable resource for both water enthusiasts and climate advocates alike.
Year Completed |
1992 |
Dam Length |
622 |
Dam Height |
33 |
River Or Stream |
TR-EAST NISHNABOTNA RIVER |
Primary Dam Type |
Earth |
Surface Area |
8.1 |
Drainage Area |
1.46 |
Nid Storage |
219 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
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 86-1