Donaldson Lake Dam is an earth dam located in Audrain County, Missouri, built in 1977. It carries a High hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Donaldson Lake Dam
The primary purpose of Donaldson Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wc Donaldson (private). It impounds the Tr-scattering Br-long Branch near Mexic0.
The dam stands 15 feet tall, creates a reservoir covering 16 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 380 square miles. Completed in 1977, the structure is 49 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Missouri dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | Audrain |
| Nearest City | Mexic0 |
| River/Stream | Tr-scattering Br-long Branch |
| Coordinates | 39.33294, -92.08909 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 128 acre-ft |
| Max Storage | 128 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 380 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Wc Donaldson |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11154 |
| Federal ID | MO11154 |
| More Info | State Dam Safety Program |