HALT – High Water Detection

The Bexar County HALT system is a tool to warn drivers when there is too much water over the road to drive through safely. HALT uses a sensor to detect rising water. Once the water reaches a certain depth, the system will warn drivers to turn around with either flashing lights or a combination of flashing lights and gates.

BexarFlood.org shows the road conditions of monitored low water crossings across Bexar County. By subscribing to alerts through this website, you can receive text or email alerts when low water crossings you choose to monitor have water over the road. If you see water over the road, please turn around and find a different route.