Traffic congestion from a previous accident Tuesday afternoon caused a 3 car pile up on I-70 west in Jackson County.  Angela Swartwood, 28, of Grain Valley was trying to pass traffic when she struck the driver’s side of Richard Hill, 56, of Kansas City and rear ended Tena Micek, 61, of Warrensburg. Micek’s passenger, Deann Lutjen, 35, of Oak Grove suffered minor injuries and was taken to St. Mary’s Hospital.