Jackknifed semi-truck blocks two northbound lanes on Philips Highway in Jacksonville, disrupting Monday commute

Two northbound lanes blocked early Monday

A jackknifed semi-truck blocked two northbound lanes of Philips Highway in Jacksonville early Monday, January 19, 2026, creating traffic disruptions during the morning commute.

Authorities reported the blockage shortly after 6 a.m. The duration of the lane closures was not immediately known, and drivers were advised to anticipate delays in the area while traffic control and clearance operations were underway.

What is known so far

• The incident involved a tractor-trailer that jackknifed, a type of crash in which the trailer swings outward, forming an angle with the cab and potentially obstructing multiple lanes.
• Two northbound lanes on Philips Highway were reported blocked as emergency traffic management began.
• Officials had not released information early Monday on injuries, a cause, or whether other vehicles were involved.

Why jackknife crashes can cause extensive backups

Jackknifed tractor-trailers can take longer to clear than typical passenger-vehicle crashes because of the size and weight of the rig, the need for specialized towing equipment, and the potential for spilled cargo or fuel. Even when a full roadway shutdown is avoided, lane losses on a major corridor like Philips Highway can quickly cascade into extended delays as traffic volumes build.

Drivers approaching a blocked-lane scene should slow down early, leave additional following distance, and follow directions from law enforcement and emergency crews.

Traffic and safety guidance for drivers in the area

Motorists traveling northbound on Philips Highway Monday morning were encouraged to consider alternate routes when possible, allow extra travel time, and remain alert for stop-and-go traffic and sudden lane changes near the incident location. Drivers are also urged to avoid rubbernecking and to give emergency responders space to work safely.

What to watch for next

Key details—such as the exact location along Philips Highway, the reason the truck jackknifed, and whether any citations were issued—typically emerge after the scene is cleared and an initial incident review is completed. Updates are expected as authorities release additional information.