San Antonio firefighters are warning drivers to avoid the city’s most flood-prone crossings as Flood Awareness Week begins, pointing to 10 locations where crews have repeatedly rescued motorists trapped by rising water. (See the list below.)
The city is observing Flood Awareness Week today through Friday, urging residents to prepare for flash flooding and to never drive, walk or play in floodwater.
It’s perfect timing as forecasters call for rains to bring a risk of flooding to the San Antonio area starting Tuesday night and continuing through Friday.
The San Antonio Fire Department identified the top 10 flood-prone crossings based on high-water rescue calls from 2015 through 2025.
The most dangerous location was Old Seguin Road at Salado Creek on the East Side, where 46 rescues were reported during that 10-year period. Old O’Connor Road north of Lookout Road had the second-highest total, with 31 rescues. Hollyhock Road, about 600 feet west of Babcock Road, ranked third with 20 rescues.
City officials said many of the crossings can appear passable early in a storm but become dangerous quickly as water rises.
South Central Texas is among the most flood-prone regions in the country, and the National Weather Service has reported that more than half of flood deaths nationwide involve vehicles driven into flooded roads.
Six inches of moving water can knock an adult down, while 12 to 18 inches can carry away most vehicles, including SUVs and trucks.
So far this year, at least two people have died in San Antonio floodwaters.
Frank Lopez, 44, drowned April 21 after becoming trapped in a tree at J Street Park along Salado Creek, and an unidentified man was found dead May 1 in San Pedro Creek near downtown during a flash flood warning.
Flood Awareness Week 2026 comes less than a year after deadly June 12 flooding killed 13 people in San Antonio, including 11 whose bodies were found near Northeast Loop 410 and Perrin Beitel Road.
Residents are encouraged to learn more than one route to and from home and work, and to make a family emergency plan before severe weather hits.
Officials also reminded drivers to obey barricades and turn around when they encounter flooded roads.
Real-time updates on barricaded low-water crossings are available at SA.gov/Floods. During disasters or emergencies, official city updates are posted at SA.gov/Alerts.