New Melle Quarry
Key Takeaway
New Melle Quarry is classified as high hazard in Missouri. It was completed in 1999 and is 27 years old. 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 | 90 ft (taller than 99.4% in MO) |
| Dam Length | 1,230 ft |
| Dam Type | Earth |
| Max Storage | 380 acre-ft |
| Normal Storage | 290 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 2,787 cfs |
| Year Completed | 1999 (27 years old) |
| NID ID | MO32053 |
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
NEW FRONTIER MATERIALS OPERATIONS ALPHA LLC
Private
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What is the hazard classification of New Melle Quarry?
New Melle Quarry 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 New Melle Quarry?
New Melle Quarry is owned by NEW FRONTIER MATERIALS OPERATIONS ALPHA LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was New Melle Quarry built?
New Melle Quarry was completed in 1999, making it 27 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is New Melle Quarry?
New Melle Quarry has a dam height of 90 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 New Melle Quarry last inspected?
New Melle Quarry was last inspected on March 31, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.