Third Creek Watershed Dam #34a

About Third Creek Watershed Dam #34a

The primary purpose of Third Creek Watershed Dam #34a is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Garden Street Communities Southeast, Llc (private). It impounds the Third Creek near Cleveland.

The dam stands 26 feet tall and stretches 662 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 163 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1960, the structure is well into its service life at over 50 years old.

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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 02/09/2023.

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