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, completed in 1972, facilitates westbound traffic while the Mathis bridge, built for eastbound travel, is designed to accommodate tall ships without requiring a bridge opening.