New Melle Quarry
New Melle Quarry is an earth dam located in St. Charles County, Missouri, built in 1999. It carries a High hazard potential classification and has a satisfactory condition assessment.
About New Melle Quarry
New Melle Quarry is a dam in St. Charles, Missouri. The dam is owned by New Frontier Materials Operations Alpha Llc (private). It impounds the Unnamed Trib Femme Osage Crk near New Melle.
The dam stands 90 feet tall and stretches 1,230 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 380 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 03/31/2021.
At 90 feet, this dam is taller than 98% of all dams in the United States.
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 | St. Charles |
| Nearest City | New Melle |
| River/Stream | Unnamed Trib Femme Osage Crk |
| Coordinates | 38.67946, -90.89911 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 90 ft |
| Dam Height | 90 ft |
| Dam Length | 1,230 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 380 acre-ft |
| Max Storage | 380 acre-ft |
| Normal Storage | 290 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 2,787 cfs |
Ownership & Safety
| Owner | NEW FRONTIER MATERIALS OPERATIONS ALPHA LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/31/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MO32053 |
| Federal ID | MO32053 |
| More Info | State Dam Safety Program |