An accident involving a dump truck closed off a street in Manayunk on Friday.MANAYUNK (WPVI) -- An accident involving a dump truck closed off a street in Manayunk on Friday.The truck overturned along the 4100 block of Lauriston Street around 1:30 p.m. It spilled its load all over the sidewalk.Though the driver wasn't hurt, it took crews quite some time to clean up the mess.The accident is still under investigation.