One of the two major bridges from the Western Maryland Railroad that are now part of the Rail to Trails Great Allegheny Passage 150 mile trail from Pittsburgh, PA to Cumberland, MD, 27 miles of which run through Ohiopyle State Park as the Youghiogheny River Trail. You can connect the C & O Canal Path in Cumberland and continue on an unmotorized path to Washington, DC. (I use to say that alot!)