Northbound traffic near Beechnut was stopped Tuesday night as crews contained the hazard and prepared a product transfer.
HOUSTON — An 18-wheeler hauling a chemical tanker caught fire on the northbound lanes of Beltway 8 near Beechnut Street on Tuesday night, prompting a hazmat response and a full closure of the west side tollway, officials said.
Officials said firefighters knocked down the flames and then treated the incident as a liquid nitrogen leak, drawing additional crews and specialized monitors to the scene. The response stopped traffic for hours on one of Houston’s busiest loops. The truck’s driver was not hurt, according to fire officials. The carrier and incident commanders coordinated plans to offload remaining product to another tanker before reopening lanes. Authorities said there was no immediate risk to people in nearby neighborhoods, but urged drivers to avoid the area while crews worked.
Fire units were dispatched shortly after 8:30 p.m. to the northbound main lanes just past Beechnut, where a tractor-trailer was reported smoking and then burning near the wheel assembly. Senior Capt. Raul Reyes said crews extinguished the fire and transitioned to hazmat operations when it appeared the tanker, which contained liquid nitrogen, might be venting. “We had a quick knockdown of the fire,” Reyes said at the scene, adding that teams established a perimeter and brought in gas monitors while traffic was diverted. Wreckers and toll road officers shut down the northbound lanes, creating backups that stretched through the late evening.
Reyes said company representatives were called to assist with moving the remaining product to a second tanker positioned nearby. Investigators at the scene reported early signs that the flames began in the truck’s braking system; there was no crash and no other vehicles were involved, according to the initial briefing. Fire officials said the driver walked away without injuries. The department did not order shelter-in-place for surrounding apartments or businesses and described the public-health risk as low based on readings taken near the roadway. The exact amount of liquid nitrogen on board and the final quantity transferred were not immediately released.
Liquid nitrogen is commonly transported for industrial, medical and research uses and rapidly dissipates into the air as gas when released. While it does not burn, the super-cold liquid can damage equipment and create heavy vapor clouds that reduce visibility near the ground. Tuesday’s fire added heat and smoke, complicating the response as crews worked to cool the tank and verify pressure. Houston-area highways see occasional hazmat closures because of heavy freight traffic and the region’s petrochemical economy; officials said the quick extinguishment limited further damage to the trailer.
As of late Tuesday, officials said lanes would reopen after the transfer and safety checks. The Houston Fire Department said investigators will examine the truck for mechanical failure, focusing on the wheels and brakes that first drew smoke reports. Toll road authorities expected to remove the damaged rig once product was secured and the tank was declared stable. No citations or charges were announced Tuesday night. A formal cause report and any enforcement action will come after the vehicle inspection and interviews with the driver and company, officials said.
Drivers stranded near the closure described long waits and abrupt detours onto surface streets as police moved cars off the tollway. Some residents along Beechnut watched from parking lots as a column of smoke faded and emergency lights lined the road. A store worker who stepped outside during the response said traffic “went still in a minute” when officers blocked the ramp. Crews remained under the overpass taking meter readings while a second tanker backed into place for the offload.
By late night, officials said the priority remained product transfer, recovery of the disabled rig and clearing debris before releasing lanes in stages. The fire department plans to release additional details, including a preliminary cause and timeline for the offload, after crews finish at the scene.
Author note: Last updated January 20, 2026.