Location: I-495, Long Island
What Happened
A major crash on eastbound I-495 — the Long Island Expressway — closed the left lane in Nassau County on Thursday, May 21, 2026, according to initial traffic reports. Beyond the lane impact, specific details including the exact location, number of vehicles involved, any injuries, and the cause of the collision have not yet been confirmed by official sources such as the Nassau County Police Department or the New York State Police.
It is not yet known how many vehicles were involved, what types of vehicles were present at the scene, or whether any occupants sustained injuries. The severity classification of this incident is listed as “major,” which typically indicates significant traffic disruption, possible injuries, or substantial vehicle damage — though none of those specifics have been independently verified at this stage.
The time of the crash has not been confirmed in available reports. No official quotes from law enforcement or emergency responders have been issued as of this update. This article will be updated as additional information becomes available from authorities.
Location & Road Context
The crash took place on eastbound I-495 in Nassau County. The precise exit number, mile marker, or cross-street has not been identified in available reports. I-495 is one of the most heavily traveled corridors on Long Island, and Long Island Traffic’s incident database shows 769 recorded incidents on this road — reflecting the frequency of disruptions along this route.
Nassau County as a whole has logged 374 recorded accidents in the Long Island Traffic database. Thursday’s eastbound incident adds to a notably active stretch: earlier on May 21, a separate minor crash on I-495 was also recorded, alongside multiple construction and roadwork events on the same corridor.
Broader Impact
With the left lane blocked during what may overlap with peak travel hours, eastbound backups on the Nassau County stretch of the LIE are likely. Drivers heading east should consider alternate routes — including the Southern State Parkway, which itself saw a minor crash and flooding event on May 20 — and should allow extra travel time until the scene is cleared. Check 511NY for real-time lane status updates.
This is a developing story. Details are limited and some specifics — including exact location, time, injuries, and cause — have not yet been confirmed by official sources. Long Island Traffic will update this report as verified information becomes available.