This article was originally published with the title “ America's Debt to the Howe Truss Timber Railway Bridge, Facts Concerning Molybdenum ” in Scientific American Magazine Vol. 126 No. 5 (May ...

Opened in 1977, the bridge was 1.6 miles long and was the world's third-longest continuous-truss bridge span, carrying about 31,000 vehicles a day.

MARYLAND (7News) — The Francis Scott Key Bridge and its collapse will continue to hamper supply routes across the nation. Until this week, it was the second-longest continuous truss bridge in ...

The second-longest continuous truss bridge. The Francis Scott Key Bridge was the second-longest continuous truss bridge span in the world, according to the American Civil Engineering Society.