The Patton Bridge was the only structure built between 1941 and 1950, which exhibits this innovative modification of the box girder design.

[2] Built in 1950, the Patton Bridge spans the Green River near the city of Auburn in King County, Washington.

The bridge was designed by Homer M. Hadley, a consulting engineer from Washington State.

The suspended section consists of two spread, welded steel box girders with reinforced concrete deck.

The concrete deck is fixed to the top flange plate of the girders with steel shear developers.