Lake Hannibal Estates Upper Dam
Lake Hannibal Estates Upper Dam is an earth dam located in Ralls County, Missouri, built in 1968. It carries a High hazard potential classification.
About Lake Hannibal Estates Upper Dam
The primary purpose of Lake Hannibal Estates Upper Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Tommy Hulse (private). It impounds the Tr-big Creek near Rensselaer.
The dam stands 22 feet tall and stretches 600 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 197 acre-feet, and collects water from a drainage area of 12 square miles. Completed in 1968, 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 | Ralls |
| Nearest City | Rensselaer |
| River/Stream | Tr-big Creek |
| Coordinates | 39.66827, -91.54479 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 21 ft |
| Dam Length | 600 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 197 acre-ft |
| Max Storage | 197 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 172 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | TOMMY HULSE |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11185 |
| Federal ID | MO11185 |
| More Info | State Dam Safety Program |