Highlands Lake Dam is an earth dam located in Boone County, Missouri, built in 1986. It carries a High hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall, taller than 78% of U.S. dams with a recorded height. 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 Highlands Lake Dam
The primary purpose of Highlands Lake Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Highland Properties Co. (private). It impounds the Rock Creek near Columbia.
The dam stands 34 feet tall, creates a reservoir covering 5 acres, has a maximum storage capacity of 91 acre-feet, and collects water from a drainage area of 60 square miles. Completed in 1986, the structure is 40 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. The most recent inspection on record was 07/16/1986. That was 40 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
At 34 feet, this dam is taller than 78% 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 | Boone |
| Nearest City | Columbia |
| River/Stream | Rock Creek |
| Coordinates | 38.89577, -92.35679 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 91 acre-ft |
| Max Storage | 91 acre-ft |
| Normal Storage | 57 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 60 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Highland Properties Co. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Last Inspection | 07/16/1986 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12215 |
| Federal ID | MO12215 |
| More Info | State Dam Safety Program |