North Pigeon Cr Watershed Site 16-1 Reservoir Report

Last Updated: December 13, 2025

Located in Pottawattamie County, Iowa, the North Pigeon Cr Watershed Site 16-1 is a local government-owned earth dam completed in 1978 by the USDA NRCS.


°F

°F

mph

Wind

%

Humidity

Summary

Designed for fire protection, stock, and small fish pond purposes, this structure boasts a dam height of 33 feet and a length of 655 feet, with a storage capacity of 123 acre-feet. With a surface area of 5.3 acres and a drainage area of 0.34 square miles, this dam plays a key role in flood risk reduction along the TR-NORTH PIGEON CREEK.

Managed by the Iowa Department of Natural Resources, this dam is state-regulated and undergoes regular inspections to ensure its structural integrity and safety for nearby residents. Despite being rated as having a low hazard potential and moderate risk, this dam has not been assessed for its overall condition. With its primary purpose of fire protection and water storage, the North Pigeon Cr Watershed Site 16-1 serves as a vital resource in the region, offering protection against potential flooding and supporting local agricultural and environmental needs.

As a part of the Omaha District, this dam also falls under the jurisdiction of federal agencies for funding and design purposes. With a focus on sustainable water resource management and climate resilience, the North Pigeon Cr Watershed Site 16-1 serves as a valuable asset in the ongoing efforts to protect and sustainably utilize water resources in the area.

Year Completed

1978

Dam Length

655

Dam Height

33

River Or Stream

TR-NORTH PIGEON CREEK

Primary Dam Type

Earth

Surface Area

5.3

Drainage Area

0.34

Nid Storage

123

Hazard Potential

Low

Foundations

Soil

Nid Height

33
       
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.