A single tractor-trailer crash on State Road 836 sent fuel spilling across the westbound lanes near NW 42nd Avenue Saturday morning, forcing crews to shut down a stretch of the Dolphin Expressway that feeds directly into Miami International Airport. City of Miami Fire Rescue responded at 8:34 a.m. and confirmed no injuries resulted from the wreck.
Fire crews and the department's hazmat team worked to contain the spill after the crash caused fuel to leak from the truck, according to Miami Fire Rescue
. The agency said westbound SR-836 between NW 27th Avenue and NW 42nd Avenue, better known as LeJeune Road, would remain closed for several hours while cleanup continued. Florida Highway Patrol dispatch records placed the collision at 8:28 a.m., just minutes before fire crews arrived on scene.
The closed stretch sits directly beside Miami International Airport, serving as one of the main routes into the airport's terminals and cargo operations, according to Transfeero. LeJeune Road links the expressway straight to MIA's ground transportation hubs, which meant the closure landed squarely on one of the morning's busiest airport-bound corridors.
Why a Fuel Leak Triggers a Rapid Hazmat Response
Miami-Dade County's groundwater table sits just 4 to 6 feet below the surface, a shallow depth that makes local aquifers especially vulnerable to diesel contamination, per GHP Environmental. That vulnerability is why rapid containment matters so much on South Florida roadways, where uncontained petroleum can soak into pervious soil and drainage systems quickly. The department's HazMat 1 unit, based out of Fire Station 1 downtown, is rated ISO Class 1 and built for exactly this kind of heavy fuel containment work, per background from City of Miami Fire Rescue.
Under Florida Department of Environmental Protection guidelines, any petroleum discharge on a public roadway that exceeds 25 gallons or shuts down a major thoroughfare must be reported to the State Warning Point for tracking, according to FDEP. The Florida Division of Emergency Management's State Watch Office operates around the clock to log hazardous material spills and major transportation disruptions like this one, coordinating between local responders and state agencies. It remains unclear exactly how much fuel leaked from the truck's tanks, and the specific cause of the crash has not been detailed.
A Highway Already Under Strain
SR-836, known as the Dolphin Expressway, is a 15.3-mile toll highway now operated by the Greater Miami Expressway Agency, which took over the corridor following a state legislative takeover and legal settlement with the former Miami-Dade Expressway Authority, according to Fitch Ratings. The expressway serves as Miami-Dade's primary east-west artery, carrying upwards of 200,000 vehicles a day and often running near or over capacity during peak hours, which leaves little detour room when lanes go dark.
The corridor is also in the middle of an $840 million “Connecting Miami” double-decking and reconstruction project between NW 17th Avenue and I-95, a joint effort between GMX and the Florida Department of Transportation slated for completion in late 2027. Active construction along the route adds another layer of complexity for drivers navigating around Saturday's closure.
Part of a Recurring Pattern on Miami-Dade Expressways
Fuel spills forcing extended expressway shutdowns are not new to the region. In August 2025, a vehicle fire and fuel spill closed the Gratigny Expressway for hours, rerouting rush-hour drivers onto surrounding streets in a case Hoodline covered in previous reporting. Hazmat cleanup and pavement degreasing after fuel spills typically require full-lane blockages that stretch well beyond the initial containment work.
Whether state environmental regulators will require post-cleanup soil monitoring along the GMX-operated right-of-way has not been addressed. For now, Miami Fire Rescue's update stands as the only official account of the crash, the spill, and the closure timeline along one of the county's most heavily traveled corridors.
