Woodlawn Lake Dam

About Woodlawn Lake Dam

The primary purpose of Woodlawn Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of San Antonio (local government). It impounds the Alazan Creek near San Antonio.

The dam stands 20 feet tall and stretches 850 feet across, creates a reservoir covering 38 acres, has a maximum storage capacity of 460 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1889, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 09/25/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.

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

Search for dams near your address to see all dams in your area with hazard classifications and safety data.