Interstate 45 Truck Fire and Cooking Oil Spill Near The Woodlands

Reported September 30, 2026

Reported

Southbound lanes of Interstate 45 near The Woodlands were closed for several hours Wednesday morning after an 18-wheeler carrying more than 5,000 gallons of cooking oil caught fire near Rayford Road, sending oil across the main travel lanes and into nearby drainage areas before crews from the Texas Department of Transportation could contain and clean up the spill.

• Fire Location on the Truck: According to Jason Millsaps, executive director of Montgomery County’s Office of Emergency Management, the fire was contained to the trailer, not the cab, and was extinguished fairly quickly.
• Extent of the Spill: The cooking oil flowed across the main travel lanes and into adjacent drainage areas, requiring a thorough cleanup effort before lanes could reopen safely.
• Hazard Classification: Danny Perez, a spokesperson for TxDOT’s Houston area, said the cooking oil is not classified as a hazardous material and posed no danger to motorists.
• Traffic Backup Extent: Congestion from the lane closure stretched northward to Texas 105 in Conroe, a distance of several miles along one of the region’s busiest commuter corridors.

What Happened on I-45 Near Rayford Road

The incident began around 6 a.m. when an 18-wheeler hauling a large load of cooking oil caught fire on southbound Interstate 45 near Rayford Road, according to local news reports. Millsaps confirmed that the fire broke out in the truck’s trailer rather than the cab, and crews managed to put it out fairly quickly, though not before thousands of gallons of oil had already spread across the roadway. No one was injured in the incident, officials said.

The aftermath of the spill proved more time-consuming than the fire itself. “It spilled along the main lanes and into the drainage area, so we have to clean that up,” Perez told reporters, noting that while the substance wasn’t considered hazardous, it still required a substantial cleanup operation before the road could safely reopen. The Texas Department of Transportation dispatched crews to remove the oil, and the southbound lanes were eventually returned to traffic on Wednesday afternoon, according to the original report from Yahoo News.

While the closure was in effect, traffic backed up as far north as Texas 105 in Conroe, a stretch that can function like a pressure valve on I-45’s already-busy commuter flow, with blockages near The Woodlands rippling northward through the Montgomery County corridor well into the morning hours.

Why Spills Like This Slow Traffic for Hours

Even when a substance isn’t classified as hazardous, a large liquid spill on a major interstate creates serious problems for traffic and road safety. Cooking oil on pavement acts much like a thin layer of ice, dramatically reducing traction for vehicles and creating the potential for secondary crashes as drivers encounter the slick surface without warning. For example, a single tanker’s worth of spilled cooking oil can coat enough asphalt that standard highway speeds become dangerous long before motorists realize conditions have changed.

The Texas Department of Transportation (TxDOT) is responsible for coordinating large-scale cleanup efforts on state highways, and operations of this scope, removing more than 5,000 gallons from travel lanes and drainage areas, often require specialized equipment, absorbent materials, and repeated passes before the surface is safe to drive on. The National Highway Traffic Safety Administration (NHTSA) has long noted that debris and substance spills on high-speed roadways are a significant contributing factor in multi-vehicle crashes, particularly when the hazard develops quickly during high-traffic morning hours.

The I-45 Corridor Through Montgomery County

Interstate 45 between Houston and The Woodlands is one of the most heavily traveled stretches of highway in the state, carrying tens of thousands of commuters and commercial vehicles daily through Montgomery County. The Rayford Road interchange is a particularly active node, connecting local traffic from The Woodlands and Spring to the main freeway and functioning as a convergence point for both residential and freight movement. Heavy truck traffic on this corridor is routine, given the volume of goods moving between Houston’s distribution centers and communities to the north.

• High Commercial Traffic Volume: The I-45 North corridor sees a significant share of 18-wheeler and commercial truck traffic, making cargo spills a recurring concern for TxDOT and local emergency managers.
• Morning Rush Hour Timing: A 6 a.m. incident on a major commuter freeway means the closure overlaps with peak inbound traffic, multiplying the number of drivers affected and lengthening backup distances rapidly.
• Drainage Area Complications: When a spill reaches drainage infrastructure, cleanup becomes more complex and time-intensive, since crews must address not just the travel surface but the channels and areas alongside the road.

Drivers traveling this corridor during incidents like Wednesday’s are advised to monitor real-time conditions through Houston TranStar before heading out, and to be prepared for significant delays when closures affect the mainlanes. Alternate routes in this area, such as Texas 249 or the Tollway, can help reduce exposure to freeway backups, though they also experience increased congestion when I-45 is restricted.