Lake Louise Marie Dam

About Lake Louise Marie Dam

The primary purpose of Lake Louise Marie Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Emerald Green Property Owners Association (private). It impounds the Tr-davies Lake near Rock Hill.

The dam stands 25 feet tall and stretches 900 feet across, creates a reservoir covering 190 acres, has a maximum storage capacity of 2,480 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1912, the structure is over a century 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 09/16/2024.

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 New York dam safety program can provide more specific information about emergency planning for this structure.

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