Neustrom Subwatershed Site 11-1 Reservoir Report
Last Updated: December 14, 2025
Neustrom Subwatershed Site 11-1, located in Woodbury County, Iowa, is a significant water resource managed by the local government with assistance from the USDA NRCS.
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Summary
This earth dam, completed in 1977, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a height of 32 feet and a storage capacity of 82 acre-feet, the dam plays a crucial role in water management in the area.
The dam's low hazard potential and moderate risk assessment make it a key infrastructure for the Little Sioux River watershed. While it currently holds a "Not Rated" condition assessment, ongoing inspections and regulatory oversight by the Iowa DNR ensure its safety and compliance with state regulations. The dam's location on TR-Wolf Creek, with a drainage area of 0.42 square miles, underscores its importance in controlling water flow and mitigating flood risks in the region.
For water resource and climate enthusiasts, Neustrom Subwatershed Site 11-1 offers a fascinating case study in sustainable water management and infrastructure development. Its role in protecting against floods, providing water for various uses, and contributing to ecosystem health exemplifies the complex interplay between human interventions and natural systems in ensuring water security and resilience in the face of changing climate patterns.
Year Completed |
1977 |
Dam Length |
550 |
Dam Height |
32 |
River Or Stream |
TR-WOLF CREEK |
Primary Dam Type |
Earth |
Surface Area |
3.5 |
Drainage Area |
0.42 |
Nid Storage |
82 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Sioux River At Correctionville
|
327cfs |
West Fork Ditch At Hornick
|
80cfs |
Maple River At Mapleton
|
323cfs |
Floyd River At James
|
187cfs |
Missouri River At Sioux City
|
15100cfs |
Omaha Cr At Homer
|
45cfs |
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.
Neustrom Subwatershed Site 11-1