Rieber Dam Reservoir Report

Last Updated: December 14, 2025

Rieber Dam, located in Montgomery County, Iowa, is a privately owned structure designed by the NRCS and regulated by the Iowa Department of Natural Resources.


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Summary

This earth dam, standing at a height of 26 feet, serves multiple purposes including fire protection and creating a small fish pond. With a storage capacity of 68 acre-feet and a surface area of 4.6 acres, the dam is situated on TR- Seven Mile Creek and is vital for water resource management in the area.

Despite being classified as having a low hazard potential, Rieber Dam is considered to have moderate risk according to the data available. The dam features an uncontrolled spillway with a width of 2 feet and has not been rated for condition assessment. While the last inspection date and other crucial information are not provided, it is evident that the dam plays a significant role in water storage and management for the surrounding community.

With its strategic location and importance for fire protection and stock pond purposes, Rieber Dam stands as a critical infrastructure in the region. As water resource and climate enthusiasts, understanding the role and condition of such dams is crucial for ensuring the sustainable management of our water resources and mitigating potential risks associated with dam failures.

Dam Height

26

River Or Stream

TR- SEVEN MILE CREEK

Primary Dam Type

Earth

Surface Area

4.6

Drainage Area

0.36

Nid Storage

68

Hazard Potential

Low

Foundations

Soil

Nid Height

26
       
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.