Waubonsie Cr. Watershed Site 36-3 Reservoir Report

Last Updated: December 5, 2025

Located in Mills County, Iowa, the Waubonsie Cr.


°F

°F

mph

Wind

%

Humidity

Summary

Watershed Site 36-3 is a dam with a primary purpose of fire protection, stock, or small fish pond, as well as flood risk reduction. Built in 1983 by the USDA NRCS, this earth dam stands at a height of 47 feet and has a length of 750 feet, providing a storage capacity of 142 acre-feet. With a drainage area of 0.16 square miles, the dam serves as a crucial resource for water management in the area.

Managed by the local government and regulated by the Iowa DNR, this dam is classified as having a low hazard potential and a moderate risk level. While its condition is currently not rated, the dam is inspected, permitted, and enforced by state authorities to ensure its safety and functionality. With a surface area of 4.9 acres, the dam plays a vital role in mitigating flood risks and providing water storage for various purposes in the region.

Overall, the Waubonsie Cr. Watershed Site 36-3 serves as a key infrastructure for water resource management in Mills County, Iowa. With its strategic location and design, this dam contributes to fire protection, stock maintenance, and flood risk reduction while being closely monitored and maintained by state regulatory agencies. For water resource and climate enthusiasts, this site represents a valuable asset in the sustainable management of water resources in the region.

Year Completed

1983

Dam Length

750

Dam Height

47

River Or Stream

TR-WAUBONSIE CR.

Primary Dam Type

Earth

Surface Area

4.9

Drainage Area

0.16

Nid Storage

142

Hazard Potential

Low

Foundations

Soil

Nid Height

47
       
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.