Home Current Massive pileup shuts down all southbound lanes on the I-5 GrapevineWorld NewsCurrentNewsMassive pileup shuts down all southbound lanes on the I-5 GrapevineMarch 24, 201986FacebookTwitterPinterestWhatsApp Southbound traffic on Interstate 5 at the Grapevine has been shut down after a major crash involving as many as 50 vehicles, Caltrans reports.