Maryland's only overhead counterweight bascule span drawbridge

Tilghman Island Bridge, Spanning Knapp's Narrows, Tilghman, Talbot County, Maryland
The drawbridge spanning the Knapps Narrows Channel between the mainland and Tilghman Island, Maryland, is significant as a unique engineering type and for its historical and aesthetic connections to Tilghman Island.
The bridge, which is eligible for listing in the National Register of Historic Places, has been a landmark in the region and should be preserved and interpreted.
Constructed in 1934, it is Maryland's only overhead counterweight bascule span and one of only fifteen moveable bridges throughout the state road network. This type of bridge a heel trunion rolling lift bridge with a counterweight suspended above the roadway was constructed at the Knapps Narrows site because of its ease and speed of operation.
Source Collection
Historic American Engineering Record (Library of Congress)