Train services were suspended Thursday morning after an 18-wheeler crashed and overturned in Center Moriches.
The truck was stuck on its side after hitting a LIRR overpass trestle just before 5 a.m.
The truck was headed westbound on Main Street when the accident occurred.
Train services were suspended until the structure of the overpass was inspected. The Montauk Highway was also closed in both directions for a few hours.