Lienemann Dam Reservoir Report
Nearby: Jungman Dam Harkrader Dam
Last Updated: December 15, 2025
Lienemann Dam, located in Dallas County, Iowa, is a privately owned structure designed by the USDA NRCS and completed in 1980.
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Summary
The dam serves multiple purposes, including fire protection and water storage for stock or small fish ponds. With a height of 31 feet and a length of 235 feet, the dam has a storage capacity of 37 acre-feet and covers a surface area of 2.5 acres.
Managed by the Iowa DNR and regulated at the state level, Lienemann Dam is classified as having a low hazard potential and a moderate risk level. The dam is primarily made of earth with a soil foundation and is situated on the TR-Raccoon River. While the dam does not have a controlled spillway, it is equipped with safety measures to mitigate risks and ensure the safety of the surrounding area.
Despite its low hazard potential, Lienemann Dam is subject to state inspections, permitting, and enforcement to ensure its structural integrity and compliance with safety regulations. The dam poses a moderate risk, indicating the importance of ongoing monitoring and maintenance to prevent any potential issues. For water resource and climate enthusiasts, Lienemann Dam serves as a notable example of a privately owned structure contributing to water management and conservation efforts in Iowa.
Year Completed |
1980 |
Dam Length |
235 |
Dam Height |
31 |
River Or Stream |
TR- RACCOON RIVER |
Primary Dam Type |
Earth |
Surface Area |
2.5 |
Drainage Area |
0.18 |
Nid Storage |
37 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Raccoon River At Van Meter
|
1640cfs |
South Raccoon River At Redfield
|
268cfs |
Raccoon River Near West Des Moines
|
1300cfs |
Raccoon River At 63rd Street At Des Moines
|
587cfs |
Walnut Creek At Des Moines
|
10cfs |
Beaver Creek Near Grimes
|
183cfs |
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.
Lienemann Dam