Hays County Flood Warning System

In 2007 Hays County began installing warning systems along bridges and low-water crossings that are especially subject to flooding during heavy rains – currently 17 sensors are in place with more planned as budget allows.

The map below shows the locations of the sensors and allows users to zoom in/out to show more precise locations. By positioning your mouse over a circle you’ll see the address or location of each sensor. If the sensor is activated by water on or near the roadway, the green circle will turn red.

At that bridge or low-water crossing, motorists will see a flashing light(s) warning them that water is across the road and to use extreme caution if attempting to cross.

The same information is relayed to the County so that Road & Bridge employees can prepare to barricade the area if water continues to rise to prevent motorists and pedestrians from being swept away by rushing water.
Sensors are located at:

• Hilliard Road (CR 222) at Sink Creek Tributary (near Valley View West)
• Jacobs Well Road (CR 182) at Cypress Creek
• Wayside Drive (CR 179) at Blanco River near Bendigo Lane
• Windy Hill Road (CR 131) at Porter Creek
• Bell Springs Road (CR 169) at Barton Creek
• Post Road (CR 140) at Blanco River
• Rohde Road (CR 126) at Brushy Creek Tributary near Graef Lane
• Elder Hill Road (CR 170) at Gatlin Creek Tributary near RR 12
• Trautwein Road (CR 185) at Barton Creek
• York Creek Road (CR 262) east of the Comal County line
• Mt Gainor Road (CR 220) west of East Mt. Gainor Road
• Gatlin Creek Road (CR 191) at South Onion Creek just south of Mt. Gainor Road
• Little Arkansas Road (CR 174) east of Flite Acres Road at the Blanco River
• Hidden Valley Road (CR 217) east of Spoke Hollow Road
• Chaparral Road west of Bliss Spillar Road
• Uhland Road (CR 161 at the Blanco River (San Marcos city limit)
• CR 1492 at the Blanco River (east side of River Road in Wimberley)
• Lime Kiln Road on Sink Creek (near Travis Elementary School)

Whether you are driving or walking, if you come to a flooded road:

Turn Around – Don’t Drown

You will not know the depth of the water nor will you know the condition of the road under the water. Only a few inches of water can knock you off your feet or sweep your car off the road or bridge.

Click here to see the real time map in a different window (takes you to a different website)