Lake Winnebago Dam Expansion
Lake Winnebago Dam Expansion is an earth dam located in Cass County, Missouri. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Lake Winnebago Dam Expansion
Lake Winnebago Dam Expansion is a dam in Cass, Missouri. The dam is private-owned.
The dam stands 63 feet tall, creates a reservoir covering 464 acres, has a maximum storage capacity of 13,700 acre-feet, and collects water from a drainage area of 22 square miles.
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 03/02/2023.
At 63 feet, this dam is taller than 96% of all dams in the United States.
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 | Cass |
| Nearest City | City Of Lake Winnebago |
| Coordinates | 38.81116, -94.35066 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 63 ft |
| Dam Height | 63 ft |
Storage & Hydraulics
| NID Storage | 13,700 acre-ft |
| Max Storage | 13,700 acre-ft |
| Normal Storage | 6,760 acre-ft |
| Surface Area | 464 acres |
| Drainage Area | 22 sq mi |
Ownership & Safety
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/02/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO40164 |
| Federal ID | MO40164 |
| More Info | State Dam Safety Program |