South Hungerford 2 Watershed Site 11 Reservoir Report
Last Updated: December 14, 2025
South Hungerford 2 Watershed Site 11, located in Sioux City, Iowa, is a vital resource managed by the local government and regulated by the Iowa Department of Natural Resources.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam, completed in 1964 by USDA NRCS, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a height of 40 feet and a storage capacity of 43 acre-feet, this dam plays a crucial role in managing water resources in the area.
The dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. Despite this, the risk assessment deems it as moderate, suggesting a need for ongoing monitoring and management measures. With a drainage area of 0.26 square miles and a surface area of 2.6 acres, South Hungerford 2 Watershed Site 11 plays a significant role in regulating water flow in the vicinity, particularly along the TR-Floyd River. Its location in Plymouth County, Iowa, further highlights its importance in the local water resource management system.
For water resource and climate enthusiasts, South Hungerford 2 Watershed Site 11 presents a fascinating case study in sustainable water management practices. From its construction history to its current operational status, this dam offers insights into the intersection of infrastructure, environmental regulations, and community resilience. With its low hazard potential and moderate risk assessment, this site underscores the ongoing challenges and opportunities in balancing water resource needs with safety and environmental protection in the region.
Year Completed |
1964 |
Dam Length |
503 |
Dam Height |
40 |
River Or Stream |
TR-FLOYD RIVER |
Primary Dam Type |
Earth |
Surface Area |
2.6 |
Drainage Area |
0.26 |
Nid Storage |
43 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Floyd River At James
|
187cfs |
Perry Creek Near Milnerville
|
25cfs |
Missouri River At Sioux City
|
15100cfs |
Omaha Cr At Homer
|
45cfs |
Big Sioux River At Akron
|
816cfs |
Little Sioux River At Correctionville
|
327cfs |
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.
South Hungerford 2 Watershed Site 11