You are here

Engineers' Office Building of the American Bridge Company (Demolished)

-A A +A
1903. 341 Park Rd.
  • Historic postcard, c. 1903-1904 ()

This large, handsome office building, demolished in 2014, was a telling symbol of the influence of the American Bridge Company in Ambridge, as befits the company that drew the plans for the Panama Canal's gates and the bridge over the Mackinac Straits. This rust-colored brick structure once oversaw the vast bridge works from its hillside terrace. The H-shaped building was highlighted by a full cornice, stone trim, and pediment-shaped gables over the central entrances on both sides, facing the river and the town. The grilles in the entry transoms featured the company's initials, and elaborate light fixtures flanked the doors. Windows, evenly spaced on each elevation, gave the drafting tables natural light. Keystones embellished the windows on the two lower stories, and stone lintels those on the third story.

Writing Credits

Lu Donnelly et al.
Updated By: 
Catherine Boland Erkkila (2022)



  • 1903

  • 2014


What's Nearby


Lu Donnelly et al., "Engineers' Office Building of the American Bridge Company (Demolished)", [Ambridge, Pennsylvania], SAH Archipedia, eds. Gabrielle Esperdy and Karen Kingsley, Charlottesville: UVaP, 2012—,

Print Source

Cover: Buildings of PA vol 1

Buildings of Pennsylvania: Pittsburgh and Western Pennsylvania, Lu Donnelly, H. David Brumble IV, and Franklin Toker. Charlottesville: University of Virginia Press, 2010, 171-171.

If SAH Archipedia has been useful to you, please consider supporting it.

SAH Archipedia tells the story of the United States through its buildings, landscapes, and cities. This freely available resource empowers the public with authoritative knowledge that deepens their understanding and appreciation of the built environment. But the Society of Architectural Historians, which created SAH Archipedia with University of Virginia Press, needs your support to maintain the high-caliber research, writing, photography, cartography, editing, design, and programming that make SAH Archipedia a trusted online resource available to all who value the history of place, heritage tourism, and learning.