Walmart Store No 400 Expansion Pond Dam

About Walmart Store No 400 Expansion Pond Dam

The primary purpose of Walmart Store No 400 Expansion Pond Dam 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 Sams Real Estate Business Trust (private). It impounds the Tr-w Fork San Jacinto River.

The dam stands 10 feet tall and stretches 500 feet across, has a maximum storage capacity of 8 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1995, the structure is 31 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. The most recent inspection on record was 02/06/2024.

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