West Fork Big Creek Watershed Site S-12 Reservoir Report
Last Updated: December 11, 2025
Located in Decatur County, Iowa, the West Fork Big Creek Watershed Site S-12 is a vital water resource managed by the local government.
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Summary
Designed by the USDA NRCS, this site serves multiple purposes such as fire protection, stock, and small fish pond, as well as flood risk reduction. Completed in 1995, the earth dam stands at a height of 23 feet and has a storage capacity of 54 acre-feet.
With a drainage area of 0.18 square miles and a surface area of 2.8 acres, this site plays a crucial role in managing water flow and reducing flood risks in the region. Despite being categorized as having a low hazard potential, the site is subject to state regulations, inspections, and enforcement to ensure its structural integrity and operational efficiency. Its location on TR- Shain Creek, within the Rock Island District, further emphasizes its importance in water resource management and climate resilience efforts.
Overall, the West Fork Big Creek Watershed Site S-12 is a significant asset for the community of Brooklyn, MO, providing essential water storage and flood control capabilities. As climate change continues to pose challenges to water resources, this site stands as a testament to the importance of proper management and maintenance of water infrastructure for the benefit of both people and the environment.
Year Completed |
1995 |
Dam Length |
475 |
Dam Height |
23 |
River Or Stream |
TR- SHAIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
2.8 |
Drainage Area |
0.18 |
Nid Storage |
54 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
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 S-12