PHILADELPHIA - The northbound lanes of I-95 in Philadelphia will be closed for several hours after a crash involving a tractor-trailer.The crash occurred later Friday morning near Washington Avenue.Officials say a FedEx tractor-trailer overturned, spilling packages all over the roadway.Police say the roadway is expected to be closed for approximately three hours as crews work to clean up the mess.___DOWNLOAD: FOX 29 NEWS APPAdvertisementSUBSCRIBE: Good Day Digest Newsletter | FOX 29 Philly on YouTubeFOLLOW: Facebook | Instagram | Twitter.