Indian Creek Watershed Site 39 Reservoir Report

Last Updated: December 14, 2025

Indian Creek Watershed Site 39, located in Pottawattamie County, Iowa, is a key water resource managed by the local government for fire protection, stock, and small fish pond purposes.


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Summary

This earth dam, completed in 1975 by USDA NRCS, stands at a height of 53 feet and spans 380 feet in length, with a storage capacity of 28 acre-feet. The dam serves to reduce flood risks in the region, with a surface area of 1.5 acres and a drainage area of 0.05 square miles along the TR-Indian Creek.

Managed by the Iowa DNR, this dam has a low hazard potential and a moderate risk assessment rating. While the condition assessment is currently not rated, the last inspection in 2003 deemed the structure to be in a satisfactory state. The dam features an uncontrolled spillway and is regulated, permitted, inspected, and enforced by state agencies. With its strategic location in Council Bluffs and involvement in water resource management, Indian Creek Watershed Site 39 represents a vital component in the region's water infrastructure for both environmental conservation and community safety.

Year Completed

1975

Dam Length

380

Dam Height

53

River Or Stream

TR-INDIAN CREEK

Primary Dam Type

Earth

Surface Area

1.5

Drainage Area

0.05

Nid Storage

28

Hazard Potential

Low

Foundations

Soil

Nid Height

53
       
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.