Photos Overturned Vehicle Closes I-287 North Brenda A. Nemcek Saturday, August 2, 2014 • 8:20am Content Options SOMERSET COUNTY, NJ - Police have advised that as of 7:52 a.m., the right two lanes of Interstate 287 north are blocked at exit 13 with an overturned vehicle. Traffic is backing up in both directions. Expect delays. TAP into your town! Get Your Town's News In Your Inbox: Click here to sign up.