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Bollman IronTruss Bridge MD40 |
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1869
---- 1/2 MILE ----> Spanning the Little Patuxent River is the sole surviving expample 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.
Maryland Historical Society
The marker is on the south side of the bridge. Howard County Maryland
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