Vande Stroet Dam Reservoir Report

Last Updated: December 13, 2025

Vande Stroet Dam, located in Iowa along the TR-Big Sioux River, was completed in 1967 by the USDA NRCS.


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Summary

This earth dam serves multiple purposes including fire protection, creating a stock pond, and supporting small fish populations. With a height of 40 feet and a length of 209 feet, the dam has a storage capacity of 53 acre-feet and covers a surface area of 3.7 acres.

Managed by a private owner, the Vande Stroet Dam is regulated by the Iowa DNR and undergoes state inspections and enforcement. The dam has a low hazard potential and a moderate risk assessment rating of 3. Although the condition of the dam is not currently rated, it meets state permitting and regulatory requirements, ensuring its continued safety and functionality for water resource and climate enthusiasts to enjoy.

Despite its uncontrolled spillway type, Vande Stroet Dam remains a vital structure for water management in the region. With its location in Sioux County, Iowa, and its proximity to Hawarden, the dam plays a crucial role in providing water for various purposes while also contributing to the local ecosystem. The dam's history, design, and purpose make it a noteworthy site for those interested in water resource management and climate resilience efforts.

Year Completed

1967

Dam Length

209

Dam Height

40

River Or Stream

TR-BIG SIOUX RIVER

Primary Dam Type

Earth

Surface Area

3.7

Drainage Area

0.42

Nid Storage

53

Hazard Potential

Low

Foundations

Soil

Nid Height

40
       
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.