The J. Stanley Tunney Bridge was completed in 1972 to carry westbound traffic, while the Mathis bridge was dedicated for vehicles traveling eastbound. The Tunney Bridge is a high level girder bridge that was designed to allow tall ships to pass under it without requiring a bridge opening.
The J. Stanley Tunney Bridge, built in 1972, handles westbound traffic and was designed to accommodate tall ships without requiring a bridge opening. The Mathis bridge, dedicated for eastbound vehicles, is a high-level girder bridge.