From Multnomah County:
The Hawthorne Bridge and the Morrison Bridge will close to motorized vehicles Monday, July 4 for the Waterfront Blues Festival fireworks show. Both bridges will close to cars and trucks from 7:00 p.m. to 11:30 p.m. Drivers will need to use alternative routes. The bridges will remain open for bicyclists and pedestrians. Multnomah County is closing the bridges during this time because crowds often fill the bridges and cars stop to watch the fireworks. This can cause safety issues. Multnomah County maintains the Morrison and Hawthorne bridges as well as four other Willamette River bridges. For information visit: https://www.multco.us/bridges