Dingeman Dam Reservoir Report
Last Updated: December 18, 2025
Dingeman Dam, located in Marion, Iowa, is a privately owned structure designed by the USDA NRCS and regulated by the Iowa DNR.
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Summary
Completed in 1970, this earth dam stands at a height of 27 feet and spans 342 feet in length, providing fire protection and serving as a small fish pond. With a storage capacity of 40 acre-feet and a surface area of 2.8 acres, the dam plays a crucial role in managing water resources in the area.
Constructed on the TR-DES MOINES RIVER in the RED ROCK RESERVOIR area, Dingeman Dam is equipped with an uncontrolled spillway and has a low hazard potential. The dam is currently rated as being in "Not Rated" condition, with moderate risk identified. While the dam does not have outlet gates, locks, or associated structures, it remains a key component in the local water management system. As a hub for water resource and climate enthusiasts, Dingeman Dam offers a glimpse into the intersection of infrastructure, conservation, and environmental stewardship in Iowa.
Despite its simple design and primary purpose, Dingeman Dam serves as a vital component of the local ecosystem, providing essential water storage and fire protection capabilities. While it may not be as well-known as other dams in the region, Dingeman Dam's role in water management and conservation efforts cannot be understated. With a focus on safety and sustainability, this unassuming earth dam continues to play a crucial role in protecting the surrounding area from potential risks and ensuring a reliable water supply for the community.
Year Completed |
1970 |
Dam Length |
342 |
Dam Height |
27 |
River Or Stream |
TR-DES MOINES RIVER |
Primary Dam Type |
Earth |
Surface Area |
2.8 |
Drainage Area |
0.21 |
Nid Storage |
40 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Des Moines River Near Pella
|
2220cfs |
English Creek Near Knoxville
|
2cfs |
Des Moines River Near Tracy
|
1400cfs |
Cedar Creek Near Bussey
|
11cfs |
South Skunk River Near Oskaloosa
|
485cfs |
White Breast Creek Near Dallas
|
5cfs |
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.
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Dingeman Dam