PUNTA GORDA, Fla. A crash caused traffic delays Tuesday on Interstate 75 at Exit 167 and Harborview Road, the Florida Highway Patrol said. The crash happened at around 4 p.m. and blocked the northbound left and center lanes, the FHP said. Traffic was backed up at least a mile. The roadblock was expected to remain for several hours, but cleared up at around 6:20 p.m. The circumstances leading up to the crash are unclear. No further information was immediately available.