Update at 10:25 p.m. — The bridge and the lanes have reopened.
Earlier: Northbound S. George Mason Drive is closed between S. Columbus Street and Four Mile Run Drive due to an outside fire.
A fire broke out under a bridge that runs over Four Mile Run earlier this evening, prompting a fire department response. Firefighters then requested police to the scene, around 6:30 p.m., before announcing an extended closure of the bridge.
The northbound lanes of George Mason “will remain shut down until a building engineer can assess damage caused by a fire in a homeless encampment under the bridge,” an Arlington County Fire Department spokesman said. “There were no injuries to occupants or firefighters. Fire Marshals are currently on scene investigating.”
George Mason Drive NB at S Four Mile Run Dr will remain shut down until a building engineer can assess damage caused by a fire in a homeless encampment under the bridge. There were no injuries to occupants or firefighters. Fire Marshals are currently on scene investigating. pic.twitter.com/Z3DI8OWPJV
— Arlington Fire & EMS (@ArlingtonVaFD) March 6, 2026
TRAFFIC ADVISORY ⚠️: NB George Mason Dr. will be closed between S. Buchanan St. and S. Four Mile Run Dr. for an extended period. Seek alternate routes. https://t.co/fCkFq3AhTd
— ArlingtonCountyPD (@ArlingtonVaPD) March 6, 2026
Photo via traffic cam/SafetyVid
