Science & Tech
6
Spanning the Little Patuxent River is the sole surviving example of the bridging system invented in 1850 by Baltimore engineer Wendel Bollman. It was the first system made entirely of iron used by the Baltimore and Ohio railroad and the first in America. Through 1873, the company built about 100 such bridges.
Hear stories like this as you drive
ExploreHere reads historical markers out loud as you pass them: over 325,000 stories across the US. No account needed.
4.7 · 800+ ratings · Free
FIND IT
North Laurel, Maryland · United States
