Architect Lloyd Lovegren and artist James Fitzgerald (1910-1973) designed the east portals of the tunnels under Mount Baker. They produced low-relief sculptures that captured Northwest Coast Native American motifs, which were fitted into the surrounding environment. The panels were cast by sculptor James Wehn (1882-1973).
In 1967, the bridge was named after Lacey V. Murrow, director of the Washington Toll Bridge Authority.
The bridge and portals were designated a Seattle Landmark on June 11, 1979, because of its distinctive engineering, its role in the heritage of Seattle, and its prominence in the area.