Lost Valley Lake Dam
Lost Valley Lake Dam is an earth dam located in Madison County, Missouri, built in 1971. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Lost Valley Lake Dam
The primary purpose of Lost Valley Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lost Valley Lake Own Asc (private). It impounds the Tr To Village Creek near Junction City.
The dam stands 38 feet tall and stretches 600 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 381 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, the structure is well into its service life at over 50 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 01/14/2021.
At 38 feet, this dam is taller than 85% of dams nationwide.
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 | Madison |
| Nearest City | Junction City |
| River/Stream | Tr To Village Creek |
| Coordinates | 37.62392, -90.25099 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 600 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 381 acre-ft |
| Max Storage | 381 acre-ft |
| Normal Storage | 240 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 2,293 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | LOST VALLEY LAKE OWN ASC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/14/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO31079 |
| Federal ID | MO31079 |
| More Info | State Dam Safety Program |