Terminal Railroad Association

The 133-year-old Merchants Bridge, which spans the Mississippi River at St. Louis and links Missouri and Illinois, officially reopened to rail traffic Sept. 15, following completion of a $222 million replacement project. Owned and operated by the Terminal Railroad Association (TRRA), the bridge serves six Class I railroads and Amtrak. (Courtesy Walsh Construction and Trey Cambern Photography)
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Timeout for Tech: Railway Bridges

RAILWAY AGE DECEMBER 2022 ISSUE: Welcome to “Timeout for Tech.” Each month, we examine a technology topic that professionals in the railway industry have asked to learn more about. This month, I am joined by co-author and structural engineer W. N. Marianos as we consider railway bridges.