Lone Rock Lake Dam
Lone Rock Lake Dam is an earth dam located in Montgomery County, Missouri, built in 1977. It carries a High hazard potential classification.
About Lone Rock Lake Dam
The primary purpose of Lone Rock Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Barks & Volz (private). It impounds the Tr-little Loutre Creek near Mineola.
The dam stands 22 feet tall and stretches 700 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 108 acre-feet, and collects water from a drainage area of 190 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 | Montgomery |
| Nearest City | Mineola |
| River/Stream | Tr-little Loutre Creek |
| Coordinates | 39.00758, -91.62920 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 21 ft |
| Dam Length | 700 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 108 acre-ft |
| Max Storage | 108 acre-ft |
| Normal Storage | 83 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 190 sq mi |
| Max Discharge | 221 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | BARKS & VOLZ |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO31467 |
| Federal ID | MO31467 |
| More Info | State Dam Safety Program |