Semi catches on fire on I-380 southbound A semi caught on fire Monday morning heading south on Interstate 380 just south of Cedar Rapids. Flames and smoke were visible on the Iowa 511 traffic. 12K views, 13 likes, 3 loves, 18 comments, 35 shares, Facebook Watch Videos from Iowa's News Now: TRAFFIC ALERT: Crash on I-380 southbound near I-80 interchange.