FIRST - Iron Bridging System in America
Posted by: 
pseudoprime
N 39° 08.077 W 076° 49.501
18S E 342262 N 4333301
The Bollman iron truss bridging system was the first iron bridging system used by the B&O railroad and the first in America.
Waymark Code: WM542H
Location: Maryland, United States
Date Posted: 11/07/2008
Views: 25
As the historic marker notes, "Spanning the Little Patuxent River is the sole surviving example of the bridging system invented, 1850, by Wendel Bollman, Baltimore engineer. It was the first system, entirely of iron, used by the Baltimore and Ohio railroad and the first in America. Through 1873 the company built about 100 such bridges."
FIRST - Classification Variable: Item or Event
Date of FIRST: 01/01/1850
More Information - Web URL: Not listed
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