BRIDGESPOTTING

The Bollman Iron Truss Bridge at Savage Mill, Maryland, is the only remaining example of the iron truss designed by Wendel Bollman of the B&O Railroad. The truss type was invented in 1852, and the bridge was constructed at a different location in 1869. The bridge was then moved to Savage Mill, crossing the Little Patuxent River, in 1887. About 100 of the Bollman truss bridges were constructed on the B&O Railroad system, but this is the only remaining example.