Austin, TX (March 7, 2026) – A multi-vehicle crash early on Friday morning, March 6, led to several lane closures and at least one reported injury on Interstate 35 in South Austin. The collision happened sometime before 4:50 a.m. in the 9900 block of I-35 northbound near Slaughter Lane.
Emergency units responded to the scene and found multiple vehicles involved in the accident. Several semi-trucks appeared to be among the vehicles in the crash, though the exact number involved has not yet been confirmed.
All northbound lanes of I-35 toward Slaughter Lane were shut down for several hours as crews worked at the scene. Drivers were temporarily diverted to Exit 226 at Onion Creek Parkway while responders cleared the roadway and addressed hazardous materials found at the crash site.
At least one person was reported injured in the incident. Details about the person’s condition or whether others were injured have not been released.
Authorities continue to investigate the cause of the crash, and more details will be released as soon as they become available. We are thinking of those injured as they receive medical care.
Why Multi-Vehicle Crashes Often Lead to Extended Highway Closures
When several vehicles are involved in a highway crash, clearing the roadway can take much longer than with smaller incidents. Large trucks, especially semi-trailers, may carry heavy cargo or equipment that must be carefully removed before traffic can resume.
Emergency crews often need space to assess vehicle damage, check for injuries, and secure the area. If hazardous materials are present, additional safety steps may be required before the roadway can reopen.
Heavy vehicles can also block multiple lanes when they overturn or stop at odd angles after a collision. This can make it difficult for tow trucks and cleanup crews to move safely through the scene.
Because of these challenges, major highway crashes frequently result in extended lane closures while crews work to restore safe driving conditions.
