Moulton Watershed Site A-1
Moulton Watershed Site A-1 is an earth dam located in Appanoose County, Iowa, built in 1968. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Moulton Watershed Site A-1
The primary purpose of Moulton Watershed Site A-1 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Appanoose County Swcd (local government). It impounds the Tr-chariton River near Coal City.
The dam stands 31 feet tall and stretches 970 feet across, creates a reservoir covering 44 acres, has a maximum storage capacity of 1,126 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/04/2021.
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Location
| State | Iowa |
| County | Appanoose |
| Nearest City | Coal City |
| River/Stream | Tr-chariton River |
| Coordinates | 40.66750, -92.71900 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 970 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 1,126 acre-ft |
| Max Storage | 1,126 acre-ft |
| Normal Storage | 220 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Appanoose County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/04/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00094 |
| Federal ID | IA00094 |
| More Info | State Dam Safety Program |