Moulton Watershed Site B-7 Reservoir Report
Last Updated: December 7, 2025
Moulton Watershed Site B-7, located in Coal City, Iowa, is a crucial water resource managed by the local government and regulated by the Iowa Department of Natural Resources.
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Summary
This earth dam, designed by USDA NRCS and completed in 1962, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a dam height of 32 feet and a storage capacity of 104 acre-feet, this site plays a significant role in water management in the region.
The dam, situated on the TR-Chariton River, covers a surface area of 7 acres and has a drainage area of 0.19 square miles. Despite its low hazard potential, the dam is classified as having moderate risk due to factors such as its age and condition assessment rating of "Not Rated". While the emergency action plan status and risk management measures are not specified, the site is regularly inspected and maintained by the Iowa DNR to ensure its operational efficiency and safety.
Overall, Moulton Watershed Site B-7 is a vital infrastructure for water resource management in the Appanoose County region. With its historical significance dating back to the early 1960s, this dam continues to provide essential services for fire protection, agriculture, and flood risk reduction. As climate change impacts water resources, understanding and maintaining sites like B-7 are crucial for sustainable water management practices in the area.
Year Completed |
1962 |
Dam Length |
480 |
Dam Height |
32 |
River Or Stream |
TR-CHARITON RIVER |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
0.19 |
Nid Storage |
104 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
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.
Moulton Watershed Site B-7