Crawford Dam Reservoir Report

Last Updated: December 13, 2025

Crawford Dam, located in Coppock, Iowa, is a private-owned structure designed by the SCS with a primary purpose of fire protection, stock, or small fish pond.


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Summary

Completed in 1981, this earth dam stands at a height of 30 feet and has a length of 315 feet. With a storage capacity of 44 acre-feet, the dam serves the purpose of storing water for irrigation and wildlife habitat enhancement in the area.

Managed by the Iowa Department of Natural Resources, Crawford Dam is regulated, inspected, and enforced to ensure its safety and functionality. The dam's low hazard potential and moderate risk assessment indicate that it is well-maintained and poses minimal threat to surrounding areas in case of a potential failure. Despite not being rated for its current condition, Crawford Dam continues to play a crucial role in water resource management and climate resilience efforts in the region.

Situated on the TR-E. FK. Crooked Creek, Crawford Dam not only provides essential water storage for fire protection and agricultural needs but also contributes to the overall ecological balance in the area. With its strategic location and well-maintained infrastructure, the dam stands as a vital resource for water management enthusiasts and climate advocates interested in sustainable water resource development and conservation initiatives in Iowa.

Year Completed

1981

Dam Length

315

Dam Height

30

River Or Stream

TR-E. FK. CROOKED CR.

Primary Dam Type

Earth

Surface Area

3.5

Drainage Area

0.05

Nid Storage

44

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.