December 21, 1829 The first stone arch railroad bridge in the United States was dedicated in Baltimore, Maryland. The Carrollton Viaduct, spanning over Gwynn’s Falls stream in the southwestern part of the city, was constructed by the Baltimore and Ohio Railroad. James Lloyd designed this bridge, and Caspar Weaver oversaw its construction. During the nine months... Continue Reading →

July 10, 1950 Richard Fontaine Maury, an engineer whose legacy includes several key railways in South America, died in the city of Córdoba in northwestern Argentina’s Salta Province at the age of 67. He had started out life in the United States, but ultimately became a naturalized Argentine citizen. Maury was born in Philadelphia in... Continue Reading →

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