Chardonnay Lake Dam is an earth dam located in St. Charles County, Missouri. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 36 ft36 ft tall and 210 ft long, taller than 82% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Chardonnay Lake Dam
Chardonnay Lake Dam is a dam in St. Charles, Missouri. The dam is owned by Augusta Shores Owners Assoc. (private). It impounds the Duname Trib-missouri.
The dam stands 36 feet tall and stretches 210 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 19 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 12/19/2018.
At 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Missouri |
| County | St. Charles |
| River/Stream | Duname Trib-missouri |
| Coordinates | 38.59310, -90.81900 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 210 ft |
Storage & Hydraulics
| NID Storage | 19 acre-ft |
| Max Storage | 19 acre-ft |
| Normal Storage | 16 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Owner | Augusta Shores Owners Assoc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/19/2018 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO40190 |
| Federal ID | MO40190 |
| More Info | State Dam Safety Program |