Troublesome Creek Watershed Site 78-4 Reservoir Report
Last Updated: December 14, 2025
Troublesome Creek Watershed Site 78-4, located in Cass County, Iowa, is a vital infrastructure project managed by the Natural Resources Conservation Service.
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Summary
Completed in 1999, this grade stabilization dam plays a crucial role in flood risk reduction and water management in the region. With a dam height of 35 feet and a storage capacity of 91 acre-feet, this earth dam helps control water flow in the Tr- East Nishnabotna River, safeguarding nearby communities from potential flooding events.
Managed by the Iowa Department of Natural Resources, Troublesome Creek Watershed Site 78-4 is state-regulated and regularly inspected to ensure it meets safety standards. With a low hazard potential and a moderate risk assessment rating, this dam is a key component in the region's water resource management infrastructure. Despite not having a current condition rating, the dam continues to fulfill its primary purpose of grade stabilization, supporting the health and sustainability of the local ecosystem.
Located in Atlantic, Iowa, Troublesome Creek Watershed Site 78-4 covers a drainage area of 0.31 square miles and has a surface area of 5.5 acres. With its uncontrolled spillway and soil foundation, this infrastructure project serves as a crucial tool in managing water flow and reducing the risk of potential flooding in the area. As climate change continues to impact water resources, structures like Troublesome Creek Watershed Site 78-4 play a vital role in ensuring the resilience and sustainability of local communities in the face of changing environmental conditions.
Year Completed |
1999 |
Dam Length |
550 |
Dam Height |
35 |
River Or Stream |
Tr- East Nishnabotna River |
Primary Dam Type |
Earth |
Surface Area |
5.5 |
Drainage Area |
0.31 |
Nid Storage |
91 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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 Creek Watershed Site 78-4