Undersize gusset plates used in the I-35W bridge in Minneapolis MN were “the critical factor” in the August 2007 bridge collapse that took 13 lives and injured 100
Undersize gusset plates used in the I-35W bridge in Minneapolis MN were “the critical factor” in the August 2007 bridge collapse that took 13 lives and injured 100, according to the National Transportation Safety Board.
Mark Rosenker, NTSB chairman, said that due to a design error, the plates that connected steel beams were about half the thickness they should have been. Sixteen broken gusset plates from the bridge's center span were discovered by investigators, he said. The steel-deck truss bridge opened in 1967.
Rosenker said it remains unclear why flawed plates were used in constructing the bridge. Investigators could not locate the design calculations. About 465 other steel-deck truss bridges are in use nationwide.
Voice your opinion!
To join the conversation, and become an exclusive member of FleetOwner, create an account today!
This free guide outlines simple steps for hiring and onboarding commercial drivers while ensuring that you meet Regulation Part 391 and maintain fully compliant driver qualification...
Ready to boost fleet efficiency by up to 50%? Learn how AI-powered dispatch and next-gen tech are transforming TMS workflows, improving driver planning, and streamlining operations...
Gain a strategic edge in today’s evolving fleet landscape. Join us to explore how fuel cards are helping fleet managers cut costs, enhance control, and prepare for an electrified...
