What Happened
A deadly crash on I-95 South shut down all southbound lanes in Nassau County, Florida, in the early morning hours of Saturday, July 11, 2026, according to the Florida Highway Patrol as reported by News4JAX. The crash occurred around 4:30 a.m. near State Road 200, in the Yulee area of Nassau County, at approximately mile marker 373.
The Florida Highway Patrol confirmed the crash was fatal but had not released the number of people involved as of the time of initial reporting. News4JAX noted that FHP was still working to gather and release additional details about the vehicles and individuals involved. No vehicle descriptions, collision type, or cause of crash had been disclosed in the agency’s early communications.
With all lanes of I-95 South blocked, traffic authorities diverted drivers at U.S. 17. The Florida Highway Patrol warned that drivers in the area should expect major delays as a result of the full closure and the diversion route. The crash was first reported at 8:35 a.m. by News4JAX staff and updated at 8:43 a.m. as additional information was sought from FHP.
Location & Road Context
The crash site sits at mile marker 373 on I-95 South in Nassau County, near the State Road 200 interchange in Yulee — a stretch of interstate that carries heavy commuter and commercial traffic between the Jacksonville, Florida, metropolitan area and points south. The U.S. 17 diversion point is a major north-south corridor in the region, but it is a significantly narrower road than I-95 and not designed to absorb full interstate traffic volume, making substantial backups likely during the closure.
While this incident occurred in Nassau County, Florida — not to be confused with Nassau County on Long Island, New York — the News4JAX report serves as the primary confirmed source for all details. Long Island Traffic’s local incident database tracks 806 recorded accidents in Nassau County, New York, including recent incidents on the Northern State Parkway and Meadowbrook State Parkway.
Broader Impact
A full closure of I-95 South at this location — a primary artery connecting Jacksonville to the rest of Florida — during early morning hours carries significant ripple effects for long-haul trucking, shift workers, and early commuters. With FHP diverting all traffic to U.S. 17 and no estimated reopening time released as of the 8:43 a.m. update, motorists in the Yulee and Fernandina Beach corridor were advised to seek alternate routes and allow for substantial additional travel time.