Winegar Lake Dam
Winegar Lake Dam is an earth dam located in Cole County, Missouri, built in 1978. It carries a High hazard potential classification.
About Winegar Lake Dam
The primary purpose of Winegar 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 Alvon&betty Winegar (private). It impounds the Tr-south Moreau Cr near Jefferson City.
The dam stands 28 feet tall, creates a reservoir covering 10 acres, has a maximum storage capacity of 150 acre-feet, and collects water from a drainage area of 160 square miles. Completed in 1978, the structure is 48 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 | Cole |
| Nearest City | Jefferson City |
| River/Stream | Tr-south Moreau Cr |
| Coordinates | 38.47722, -92.39722 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 160 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | ALVON&BETTY WINEGAR |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO31692 |
| Federal ID | MO31692 |
| More Info | State Dam Safety Program |