Coleman Dam
Coleman Dam is an earth dam located in St. Charles County, Missouri, built in 1991. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Coleman Dam
The primary purpose of Coleman Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Margaret Coleman (private). It impounds the Tr To Little Spring Osage Ck near Warrenton.
The dam stands 51 feet tall and stretches 460 feet across, creates a reservoir covering 25 acres, has a maximum storage capacity of 580 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1991, the structure is 35 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 04/10/2020.
At 51 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Missouri |
| County | St. Charles |
| Nearest City | Warrenton |
| River/Stream | Tr To Little Spring Osage Ck |
| Coordinates | 38.67361, -90.77972 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 51 ft |
| Dam Height | 51 ft |
| Dam Length | 460 ft |
| Year Completed | 1991 (35 years old) |
Storage & Hydraulics
| NID Storage | 580 acre-ft |
| Max Storage | 580 acre-ft |
| Normal Storage | 580 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,459 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MARGARET COLEMAN |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/10/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO31882 |
| Federal ID | MO31882 |
| More Info | State Dam Safety Program |