Eighteenth Street Bridge, Saint Louis, Independent City, MO
Significance: The Eighteenth Street Bridge is a 1,054-foot-long through-truss and through-plate girder structure with distinctive ornamentation over each truss portal in the form of finials and cresting, and perforated trefoils in the bridge's spandrels. Punched holes in the cresting over the top of each portal spell out the words "Eighteenth Street."
Survey number: HAER MO-10
Building/structure dates: 1910 Initial Construction