Built in 1904 by Pennsylvania Steel Company (later purchased by the Bethlehem Steel Company), the Baltimore & Ohio Railroad bridge runs over the Big Monocacy River. It was constructed using the deck plate girders system. It is 738 feet long and stands approximately 90 feet above the Big Monocacy River. Constructed from 1,364,269 pounds of structural steel, its total cost was estimated at $228,416. The bridge is still in use today.