Alsea Bay Bridge, Spanning Alsea Bay at Oregon Coast Highway, Waldport, Lincoln County, OR

Significance: The Alsea Bay Bridge was one of five large spans built along the Oregon Coast Highway between 1934 and 1936, of which C.B. McCullough oversaw the design and construction. The main spans of this 3,028-foot structure are three reinforced-concrete through tied arches. These arches are the largest of McCullough's reinforced-concrete tied arches in the state. Alsea Bay Bridge is the third largest of the five Oregon Coast Highway bridges. It is considered by some experts to rank among the finer examples of concrete bridges in America and may be the longest concrete span in North America. The bridge is significant for its impressive design and ornate detailing in the Art Deco style. Construction of a replacement bridge began in 1988, and was completed in 1991. The original structure was subsequently demolished.
Unprocessed Field note material exists for this structure: FN-5
Survey number: HAER OR-14
Building/structure dates: 1936 Initial Construction
Building/structure dates: 1991 Demolished