Tackett Lake Dam
Tackett Lake Dam is an earth dam located in Johnson County, Missouri, built in 1950. It carries a High hazard potential classification.
About Tackett Lake Dam
The primary purpose of Tackett Lake Dam is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Robert Tackett (private). It impounds the Tr-post Oak Creek near Boonville.
The dam stands 27 feet tall and stretches 325 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 95 acre-feet, and collects water from a drainage area of 75 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 | Johnson |
| Nearest City | Boonville |
| River/Stream | Tr-post Oak Creek |
| Coordinates | 38.77770, -93.74689 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 25 ft |
| Dam Length | 325 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 95 acre-ft |
| Max Storage | 95 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 75 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | ROBERT TACKETT |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO20178 |
| Federal ID | MO20178 |
| More Info | State Dam Safety Program |