King Lake Dam
King Lake Dam is an earth dam located in DeKalb County, Missouri, built in 1971. It carries a High hazard potential classification and has a satisfactory condition assessment.
About King Lake Dam
The primary purpose of King 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 Mo Dept Of Conservation (local government). It impounds the Lost Creek near Weatherby.
The dam stands 40 feet tall and stretches 1,920 feet across, creates a reservoir covering 184 acres, has a maximum storage capacity of 4,773 acre-feet, and collects water from a drainage area of 19 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 03/23/2021.
At 40 feet, this dam is taller than 87% 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 | DeKalb |
| Nearest City | Weatherby |
| River/Stream | Lost Creek |
| Coordinates | 40.02009, -94.43739 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 1,920 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 4,773 acre-ft |
| Max Storage | 4,773 acre-ft |
| Normal Storage | 1,293 acre-ft |
| Surface Area | 184 acres |
| Drainage Area | 19 sq mi |
| Max Discharge | 13,514 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | MO DEPT OF CONSERVATION |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/23/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO10384 |
| Federal ID | MO10384 |
| More Info | State Dam Safety Program |