Iowa Noname88 Reservoir Report

Last Updated: December 15, 2025

Iowa Noname88 is a local government-owned earth dam located in Appanoose County, Iowa, specifically in the city of Sedan.


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Summary

Completed in 1978 for fire protection, stock, and small fish pond purposes, this dam stands at a height of 30 feet and stretches 500 feet in length. With a normal storage capacity of 17 acre-feet and a maximum storage of 73 acre-feet, the dam serves as a crucial water resource in the area.

Managed by the Iowa Department of Natural Resources, Iowa Noname88 is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and compliance with regulations. The dam poses a low hazard potential and has been rated as in moderate risk, indicating the need for ongoing risk management measures. Although the condition assessment is currently not rated, the dam's emergency action plan status, inundation maps, and risk management strategies are under review to meet guidelines and improve overall safety.

Situated along the TR-Brush Creek and under the jurisdiction of the Rock Island District, Iowa Noname88 serves as a vital infrastructure for water conservation and management in the region. With its strategic location and purpose, this dam plays a crucial role in maintaining water resources, protecting against emergencies, and supporting the local ecosystem.

Year Completed

1978

Dam Length

500

Dam Height

30

River Or Stream

TR-BRUSH CREEK

Primary Dam Type

Earth

Surface Area

3.8

Drainage Area

0.32

Nid Storage

73

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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.