Lierheimer Lake Dam
Lierheimer Lake Dam is an earth dam located in Audrain County, Missouri, built in 1978. It carries a High hazard potential classification.
About Lierheimer Lake Dam
The primary purpose of Lierheimer 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 Richard Lierheimer (private). It impounds the Tr-south Fork Salt River near Mexico.
The dam stands 25 feet tall, creates a reservoir covering 27 acres, has a maximum storage capacity of 361 acre-feet, and collects water from a drainage area of 340 square miles. Completed in 1978, the structure is 48 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 | Mexico |
| River/Stream | Tr-south Fork Salt River |
| Coordinates | 39.17825, -91.85445 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 361 acre-ft |
| Max Storage | 361 acre-ft |
| Normal Storage | 180 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 340 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | RICHARD LIERHEIMER |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11244 |
| Federal ID | MO11244 |
| More Info | State Dam Safety Program |