Moulton Watershed Site E-1 Reservoir Report
Last Updated: December 7, 2025
Moulton Watershed Site E-1, located in Coal City, Iowa, is a local government-owned earth dam completed in 1964 by the USDA NRCS.
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Summary
This dam serves multiple purposes including fire protection, livestock watering, small fish pond, and flood risk reduction along the TR-Chariton River. With a height of 31 feet and a length of 685 feet, the dam has a storage capacity of 91 acre-feet and covers a surface area of 4 acres.
Managed by the Iowa Department of Natural Resources, this dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safe operation. Despite being classified as low hazard potential, the dam is considered to have moderate risk due to its age and condition assessment not being rated. The risk management measures and emergency action plan for the dam have not yet been fully assessed, highlighting the need for continued monitoring and maintenance to ensure the safety of the surrounding community and environment.
Water resource and climate enthusiasts interested in the Moulton Watershed Site E-1 can appreciate its role in water management and flood risk reduction in the area. The dam's location in the Appanoose County provides a valuable resource for agricultural and environmental sustainability. With its historical significance and ongoing regulatory oversight, this dam serves as a critical infrastructure for water conservation efforts in Iowa.
Year Completed |
1964 |
Dam Length |
685 |
Dam Height |
31 |
River Or Stream |
TR-CHARITON RIVER |
Primary Dam Type |
Earth |
Surface Area |
4 |
Drainage Area |
0.31 |
Nid Storage |
91 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
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 E-1