West Fork Big Creek Watershed Site W-28 Reservoir Report
Last Updated: December 12, 2025
Located in Ringgold County, Iowa, the West Fork Big Creek Watershed Site W-28 is a grade stabilization structure designed by the USDA NRCS and completed in 2002.
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Summary
This earth dam stands at a height of 29 feet, with a length of 475 feet, providing a storage capacity of 131 acre-feet for the Tr- Wolf Creek. The dam serves a primary purpose of grade stabilization, helping to manage water flow and prevent erosion in the area.
The West Fork Big Creek Watershed Site W-28 is regulated by the Iowa DNR and undergoes regular inspections, with a low hazard potential and a moderate risk assessment rating of 3. The structure is located in the State of Missouri city, within the Rock Island District, and is owned by the local government. With state permitting, inspection, and enforcement in place, the dam plays a crucial role in managing water resources and mitigating risks in the region.
Overall, the West Fork Big Creek Watershed Site W-28 is a vital infrastructure for water resource management in the area, ensuring the safety and sustainability of the surrounding environment. With its earth dam design and controlled spillway, the structure provides necessary grade stabilization and storage capacity for the Tr- Wolf Creek, contributing to the overall resilience of the region against potential water-related hazards.
Year Completed |
2002 |
Dam Length |
475 |
Dam Height |
29 |
River Or Stream |
Tr- Wolf Creek |
Primary Dam Type |
Earth |
Surface Area |
5.8 |
Drainage Area |
0.42 |
Nid Storage |
131 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
West Fork Big Creek Watershed Site W-28