Iowa Gun Dog Dam Reservoir Report

Last Updated: December 10, 2025

Located in Jamison, Iowa, the Iowa Gun Dog Dam is a privately owned structure designed by NRCS for grade stabilization purposes.


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Summary

Completed in 2020, this earth dam stands at a height of 29 feet with a length of 400 feet, providing a storage capacity of 64 acre-feet. The dam serves to control water flow in the Tr to Squaw Creek, with a low hazard potential and a moderate risk assessment rating.

With a spillway width of 20 feet and a maximum discharge capacity of 90 cubic feet per second, the Iowa Gun Dog Dam plays a crucial role in managing water resources in Clarke County, Iowa. State regulated by the Iowa DNR, the dam undergoes regular inspections, enforcement, and permitting to ensure its structural integrity and functionality. Its location in Congressional District 02 further highlights its significance in the region's water resource management efforts.

Water resource and climate enthusiasts will appreciate the Iowa Gun Dog Dam for its role in grade stabilization and water flow control, contributing to the overall resilience of the local ecosystem. As a privately owned structure with state jurisdiction, the dam showcases collaborative efforts between the owner and regulatory agencies to safeguard the surrounding environment and communities from potential risks. With its completion in 2020 and modern design features, the Iowa Gun Dog Dam stands as a testament to innovative engineering solutions for sustainable water management in Iowa.

Year Completed

2020

Dam Length

400

Dam Height

29

River Or Stream

Tr to Squaw Cr

Primary Dam Type

Earth

Surface Area

4.5

Hydraulic Height

29

Drainage Area

0.22

Nid Storage

64

Structural Height

29

Hazard Potential

Low

Foundations

Soil

Nid Height

29
       
Seasonal Comparison

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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.