The US 67 bridge across the Mississippi River in the Quad Cities is closed for a month — until the weekend after Labor Day. The story below from WHBF* goes into the problems of trying to use the Arsenal (or Government) Bridge nearby instead of I-74 or I-280. Those problems, say the Quad-City Times, include three-block-long backups triggered by barge traffic closing that bridge.
*Not that you can immediately tell from its website name or header.