A rather well done technical discussion of arch bridges and the significance of the separated member of the
Hernando de Soto bridge.
New developments include the firing of an inspector. Also new video and photo evidence indicates the structural member was cracked as early as 2016.
Runtime 12:54
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Practical Engineering
Jun 15, 2021
2.03M subscribers
In May of 2021, inspectors on the I-40 Mississippi River Bridge near Memphis, Tennessee discovered a major crack in a structural member. They immediately contacted emergency managers to shut down this key crossing to vehicle traffic above and maritime traffic below. This video provides a summary of the event, including a discussion on arch bridges, fatigue in steel members, and national bridge inspection standards.
Errata:
(1)
8:38 "at minimum, an arm's length away" should be "at maximum, an arm's length away"
(2)
1:14 New Madrid is usually pronounced MA-drid, not ma-DRID.
(3)
4:55 ”It’s hard to understate the severity” should be “overstate”
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What Really Happened at the Hernando de Soto Bridge?
View: https://youtu.be/e8PodEM4Y8g