Troublesome Cr Watershed Site 86-4 Reservoir Report
Last Updated: December 14, 2025
Troublesome Cr Watershed Site 86-4 is a local government-owned dam located in Audubon, Iowa, specifically in the city of Brayton.
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Summary
Built in 1992 by the USDA NRCS, this earth dam serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a dam height of 33 feet and a length of 468 feet, it has a normal storage capacity of 17 acre-feet and a maximum storage of 56 acre-feet.
Situated on the TR-East Nishnabotna River, Troublesome Cr Watershed Site 86-4 has a low hazard potential and is classified as having a moderate risk level. Although its condition is currently not rated, the dam is regulated and inspected by the Iowa DNR, with state permitting, inspection, and enforcement in place. With its primary purpose being water resource management, this dam plays a crucial role in protecting the surrounding area from potential flooding events and ensuring a stable water supply for various uses.
Overall, Troublesome Cr Watershed Site 86-4 stands as a vital infrastructure for water management in Audubon, Iowa, demonstrating the collaborative efforts between local government and federal agencies like the USDA NRCS. With its strategic location on the TR-East Nishnabotna River, this dam effectively mitigates flood risks while providing essential water resources for fire protection, agriculture, and wildlife support. As climate change continues to impact water resources, the importance of maintaining and monitoring structures like Troublesome Cr Watershed Site 86-4 becomes increasingly critical for the resilience of communities and ecosystems in the region.
Year Completed |
1992 |
Dam Length |
468 |
Dam Height |
33 |
River Or Stream |
TR-EAST NISHNABOTNA RIVER |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.17 |
Nid Storage |
56 |
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 86-4