Cypress Bayou No 2

About Cypress Bayou No 2

The primary purpose of Cypress Bayou No 2 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 Town Of Plain Dealing (local government). It impounds the Little Cypress Bayou near Plain Dealing.

The dam stands 43 feet tall and stretches 3,090 feet across, creates a reservoir covering 99 acres, has a maximum storage capacity of 2,450 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 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 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 08/09/2024.

At 43 feet, this dam is taller than 89% of dams nationwide.

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

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