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How Bridges Are Built and Maintained

The Interstate 35 West bridge in Minneapolis was in the midst of repairs when it buckled Wednesday evening. Many questions remain about what made the 40-year-old bridge plunge into the Mississippi River. Guests discuss questions about bridges and structural integrity.

Paul Thompson, consultant in bridge management

Patrick Sparks, structural engineer; president of the board of the Historic Bridge Foundation

Copyright 2023 NPR. To see more, visit https://www.npr.org.

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