Pikes Peak Flood Control Dam Reservoir Report

Last Updated: December 5, 2025

Pikes Peak Flood Control Dam, located in McGregor, Iowa, was completed in 1938 by the USDA NRCS to serve as a crucial flood risk reduction structure along the TR-Mississippi River.


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Summary

With a height of 49 feet and a length of 360 feet, this earth dam is designed to store 106 acre-feet of water and covers a drainage area of 0.58 square miles. The dam is regulated by the Iowa DNR and undergoes regular inspections to ensure its structural integrity.

Despite its high hazard potential, the dam has been assessed as being in satisfactory condition as of June 2019, with emergency action plans in place for any potential risk scenarios. Managed by local government authorities, the primary purpose of Pikes Peak Flood Control Dam is to protect surrounding areas from flooding and maintain public safety. As a vital component of the flood control infrastructure, the dam plays a crucial role in mitigating flood risks and ensuring the resilience of the region against extreme weather events.

Year Completed

1938

Dam Length

360

Dam Height

49

River Or Stream

TR-MISSISSIPPI RIVER

Primary Dam Type

Earth

Drainage Area

0.58

Nid Storage

106

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

49
       
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.