Northern State Parkway (NSP) accidents in Dix Hills, NY

What our records show

The Northern State Parkway (NSP) runs through Dix Hills as one of the 29-mile primary parkways serving Suffolk County, carrying roughly 100,000 vehicles per day. The posted speed limit is 55 mph. The route stretches from Grand Central Parkway (Queens–Nassau line, Lake Success) to Veterans Memorial Highway / NY 347 & NY 454 (Hauppauge), with Dix Hills sitting along that spine. Locally, drivers know it as Northern State or Northern Parkway or NSP or northern-stpkwy or northern-state-pkwy.

Our database has logged 2 incidents on Northern State Parkway within Dix Hills, including 1 critical cases. No fatalities have been recorded in the incidents we track for this stretch. The most recent report we published involved Two Women Charged After Suffolk Police Uncover Alleged Brothel in Dix Hills Home on Commack Road on May 22, 2026. On average, we've seen roughly 0.3 reported crashes per month on this stretch during the period covered by our archive.

Inside Dix Hills, Northern State Parkway intersects with or runs parallel to several other high-volume routes — LIE, Deer Park Avenue, Vanderbilt Motor Parkway — so many crashes on this corridor originate at exits and interchanges rather than along open stretches. That pattern matches what we see in the incident reports below, which cluster around entry and exit ramps feeding those surface streets.

Town context matters because accidents here don't unfold in isolation. Dix Hills is home to about 26,000 residents and falls under SCPD 2nd Precinct. Serious injuries from Northern State Parkway crashes are typically triaged to Huntington Hospital (Northwell Health). Below you'll find every incident on this stretch we've covered, newest first.