Bacon Creek Watershed Site H-1-1 Reservoir Report
Last Updated: December 13, 2025
Bacon Creek Watershed Site H-1-1 is a significant earth dam located in Woodbury County, Iowa, near Sioux City.
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Summary
Completed in 1981, this dam serves as a crucial flood risk reduction structure along the TR-Floyd River. With a height of 40 feet and a length of 500 feet, the dam has a normal storage capacity of 23 acre-feet and a maximum storage capacity of 99 acre-feet, making it an essential part of the region's water management infrastructure.
Managed by the Iowa Department of Natural Resources, this dam is inspected regularly to ensure its safety and effectiveness in mitigating flood risks. Its hazard potential is categorized as significant, but its condition assessment is currently satisfactory. The structure's risk assessment is rated as moderate, indicating a need for ongoing monitoring and management measures to ensure its continued functionality and safety. With its strategic location in the Bacon Creek watershed, this dam plays a vital role in protecting the surrounding area from potential flooding events.
As a key component of the local government's flood risk reduction efforts, Bacon Creek Watershed Site H-1-1 stands as a testament to the importance of sustainable water resource management in the face of climate challenges. With its earth dam design and soil foundation, this structure exemplifies the commitment to protecting communities and ecosystems from the impacts of extreme weather events. By maintaining and monitoring this dam, authorities are working proactively to safeguard lives, property, and natural habitats in the region.
Year Completed |
1981 |
Dam Length |
500 |
Dam Height |
40 |
River Or Stream |
TR-FLOYD RIVER |
Primary Dam Type |
Earth |
Surface Area |
5.5 |
Drainage Area |
0.59 |
Nid Storage |
99 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Floyd River At James
|
187cfs |
Missouri River At Sioux City
|
15100cfs |
Perry Creek Near Milnerville
|
25cfs |
Omaha Cr At Homer
|
45cfs |
Big Sioux River At Akron
|
816cfs |
West Fork Ditch At Hornick
|
80cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Bacon Creek Watershed Site H-1-1
Bacon Creek Sioux City