The Burnside Bridge will close to motor vehicle and river traffic on Saturday, June 7 from 7 a.m. until 2 p.m. for the Portland Rose Festivals Grand Floral Parade. TriMet bus lines 12 Barbur/Sandy, 19 Woodstock/Glisan, and 20 Burnside-Stark will be detoured across the Steel Bridge during the bridge closure. Line 17 Holgate/Broadway will also use the Steel Bridge due to the closure of N. Broadway. Bridge sidewalks will remain open.