Bacon Creek Watershed Site A-2-4 Reservoir Report

Last Updated: December 14, 2025

Located in Woodbury County, Iowa, the Bacon Creek Watershed Site A-2-4 is a local government-owned structure designed by the USDA NRCS for flood risk reduction along the TR-Bacon Creek.


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Summary

Completed in 1979, this earth dam stands at a height of 51 feet, with a length of 568 feet and a drainage area of 2.22 square miles. With a storage capacity of 1474 acre-feet and a surface area of 34 acres, the dam serves multiple purposes including fire protection, stock or small fish pond, and flood risk reduction.

The Bacon Creek Watershed Site A-2-4 has been inspected regularly, with the last assessment conducted in August 2020, revealing a satisfactory condition. The dam has a high hazard potential, prompting a moderate risk assessment of level 3. Although the spillway type is uncontrolled with a width of 3 feet, the structure has been deemed to meet regulatory standards enforced by the Iowa Department of Natural Resources. With its strategic location in Sioux City and crucial role in mitigating flood risks, this watershed site serves as a vital component of water resource management in the region, appealing to climate and water resource enthusiasts alike.

Year Completed

1979

Dam Length

568

Dam Height

51

River Or Stream

TR-BACON CREEK

Primary Dam Type

Earth

Surface Area

34

Drainage Area

2.22

Nid Storage

1474

Hazard Potential

High

Foundations

Soil

Nid Height

51
       
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.