Iowa Noname89 Reservoir Report

Last Updated: December 6, 2025

Iowa Noname89 is a dam located in Jasper County, Iowa, near the city of North Skunk River.


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Summary

Built in 1980 by the USDA NRCS, this earth dam serves multiple purposes including fire protection, livestock watering, and small fish pond habitat. With a height of 37 feet and a length of 350 feet, the dam has a storage capacity of 51 acre-feet and covers a surface area of 3.6 acres.

Managed by the Iowa DNR, Iowa Noname89 is regulated and inspected by state authorities to ensure its structural integrity and compliance with safety standards. The dam has a low hazard potential and a moderate risk assessment rating of 3, indicating a moderate level of risk associated with potential failure. While the condition assessment of the dam is currently marked as "Not Rated," it is subject to regular inspections to monitor its safety and functionality.

Overall, Iowa Noname89 plays a vital role in water resource management and climate resilience in the region, providing essential services for both human and ecological needs. As a key asset in the local government's infrastructure, the dam exemplifies the importance of sustainable water management practices and serves as a critical component in mitigating the impacts of climate change on the surrounding community and environment.

Year Completed

1980

Dam Length

350

Dam Height

37

River Or Stream

TR-SUGAR CREEK

Primary Dam Type

Earth

Surface Area

3.6

Drainage Area

0.12

Nid Storage

51

Hazard Potential

Low

Foundations

Soil

Nid Height

37
       
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.
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Area Campgrounds