St. Joe State Park Dam
Key Takeaway
St. Joe State Park Dam is classified as high hazard in Missouri. It was completed in 1965 and is 61 years old. Its primary use is tailings. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 130 ft (taller than 99.7% in MO) |
| Dam Length | 2,930 ft |
| Dam Type | Rockfill |
| Max Storage | 54.2K acre-ft |
| Normal Storage | 37.2K acre-ft |
| Surface Area | 970 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 12,100 cfs |
| Year Completed | 1965 (61 years old) |
| Year Modified | 1997 |
| NID ID | MO30277 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MO. DNR PARKS
State Government
Nearby Dams
Owl Creek Lake Dam
St. Francois, MO
Low Hazard 32 ftDesloge Landfill Tailings Dam
St. Francois, MO
High Hazard 25 ftCedar Lake Dam
St. Francois, MO
Low Hazard 37 ftMcdowell Lake Dam
St. Francois, MO
Low Hazard 25 ftHoleman Lake Dam
St. Francois, MO
High Hazard 38 ftLakeview Park Dam
St. Francois, MO
High Hazard 27 ftLeadwood Tailings Dam
St. Francois, MO
High Hazard 58 ftEaton Tailings Dam
St. Francois, MO
High Hazard 58 ftFrequently Asked Questions
What is the hazard classification of St. Joe State Park Dam?
St. Joe State Park Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates St. Joe State Park Dam?
St. Joe State Park Dam is owned by MO. DNR PARKS (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was St. Joe State Park Dam built?
St. Joe State Park Dam was completed in 1965, making it 61 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of St. Joe State Park Dam?
St. Joe State Park Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is St. Joe State Park Dam?
St. Joe State Park Dam has a dam height of 130 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was St. Joe State Park Dam last inspected?
St. Joe State Park Dam was last inspected on January 11, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.