Willibrand Lake Dam
Willibrand Lake Dam is an earth dam located in Osage County, Missouri, built in 1957. It carries a High hazard potential classification.
About Willibrand Lake Dam
Willibrand Lake Dam is a dam in Osage, Missouri. The dam is owned by C E & C R Willibrand (private). It impounds the Tr-maries River near Wesphalia.
The dam stands 25 feet tall, creates a reservoir covering 25 acres, has a maximum storage capacity of 334 acre-feet, and collects water from a drainage area of 740 square miles. Completed in 1957, 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.
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 | Osage |
| Nearest City | Wesphalia |
| River/Stream | Tr-maries River |
| Coordinates | 38.36223, -92.03286 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 334 acre-ft |
| Max Storage | 334 acre-ft |
| Normal Storage | 167 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 740 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | C E & C R WILLIBRAND |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO30067 |
| Federal ID | MO30067 |
| More Info | State Dam Safety Program |