The Investigators: Can the I-55 bridge handle the extra traffic? Bridge volume will increase as traffic diverted Details of I-55 brdige inspection reports revealed By Jessica Jaglois | May 12, 2021 at 6:51 PM CDT - Updated May 12 at 6:51 PM MEMPHIS, Tenn. (WMC) - More than 41,000 vehicles travel on the I-55 bridge on a normal day. That volume will increase as traffic is diverted indefinitely while repairs are made to the I-40 Hernando de Soto Bridge. The WMC Action News Five Investigators have been looking into past inspection reports to learn more about the integrity of the I-55 bridge while more cars and trucks travel across it.