What Happened
A crash on the eastbound Southern State Parkway in Nassau County closed two right lanes on Thursday, September 17, 2026. The incident was classified as moderate severity. No further details on the number of vehicles involved, the cause of the collision, or any injuries have been confirmed by officials as of this report.
The lane closures affected eastbound travel on one of Nassau County’s primary east-west arterials. Drivers approaching the closure faced reduced capacity on the right shoulder and right travel lane, pushing traffic into remaining open lanes.
Location & Road Context
The Southern State Parkway runs east-west across Nassau and Suffolk counties and carries heavy commuter and residential traffic daily. Nassau County has 1,322 recorded accidents in Long Island Traffic’s local incident database.
According to Long Island Traffic’s incident registry, the Southern State Parkway has recorded 59 incidents in the past 30 days and 241 so far in 2026. On September 5, 2026, the corridor saw its most recent prior fatal crash — a Lindenhurst driver who admitted going 121 mph before a fatal Southern State Parkway collision.
September 17 also brought moderate crashes on the Northern State Parkway and a separate Southern State Parkway incident earlier in the day, alongside minor crashes on NY 135 and I-495.