Ripperger Dam Reservoir Report

Last Updated: December 9, 2025

Ripperger Dam, located in Warren County, Iowa, serves as a crucial water resource for fire protection, stock maintenance, and small fish pond activities.


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Summary

Built in 1989, this earth dam stands at a height of 27 feet with a length of 420 feet, providing a storage capacity of 147 acre-feet. Situated on TR- Felters Branch, the dam's primary purpose is to safeguard the surrounding area from potential flooding and to support various agricultural and recreational activities in the region.

Managed by a private owner, Ripperger Dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections to ensure its structural integrity and functionality. With a low hazard potential and a moderate risk assessment rating, the dam plays a vital role in water management and conservation efforts in the area. Despite not having an official condition rating, the dam's historical significance and strategic location make it a key asset for climate enthusiasts and water resource management professionals alike.

As a part of the Kansas City District, Ripperger Dam's design and construction were overseen by the Soil Conservation Service (SCS), emphasizing its commitment to sustainable and environmentally conscious practices. With its controlled spillway and ample storage capacity, the dam demonstrates a thoughtful approach to water resource management, highlighting the importance of balancing human needs with ecological considerations in a changing climate.

Year Completed

1989

Dam Length

420

Dam Height

27

River Or Stream

TR- FELTERS BRANCH

Primary Dam Type

Earth

Surface Area

10.7

Drainage Area

0.38

Nid Storage

147

Hazard Potential

Low

Foundations

Soil

Nid Height

27
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.