Chardonnay Lake Dam

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.

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 83% of dams nationwide.

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Significant HazardSatisfactory ConditionEmergency Action Plan: No

Location

StateMissouri
CountySt. Charles
River/StreamDuname Trib-missouri
Coordinates38.59310, -90.81900

Physical Characteristics

Dam TypeEarth
NID Height36 ft
Dam Height36 ft
Dam Length210 ft

Storage & Hydraulics

NID Storage19 acre-ft
Max Storage19 acre-ft
Normal Storage16 acre-ft
Surface Area1 acres
Drainage Area0 sq mi

Ownership & Safety

OwnerAUGUSTA SHORES OWNERS ASSOC.
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection12/19/2018
Emergency Action PlanNo

Identifiers

NID IDMO40190
Federal IDMO40190
More InfoState Dam Safety Program

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