Lake Jeano Dam
Lake Jeano Dam is an earth dam located in Wayne County, Missouri, built in 1964. It carries a High hazard potential classification.
About Lake Jeano Dam
The primary purpose of Lake Jeano 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 C A Ricketts (private). It impounds the Greasy Creek near Piedmont.
The dam stands 23 feet tall, creates a reservoir covering 14 acres, has a maximum storage capacity of 172 acre-feet, and collects water from a drainage area of 560 square miles. Completed in 1964, 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. The most recent inspection on record was 08/23/1979. That was 46 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
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 | Wayne |
| Nearest City | Piedmont |
| River/Stream | Greasy Creek |
| Coordinates | 37.21340, -90.68782 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 172 acre-ft |
| Max Storage | 172 acre-ft |
| Normal Storage | 81 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 560 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | C A RICKETTS |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 08/23/1979 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO30018 |
| Federal ID | MO30018 |
| More Info | State Dam Safety Program |