Centennial Bridge, Spanning Mississippi River at U.S. Highway 61, Davenport, Scott County, IA

Significance: This bridge is a major river span and was the first tied-arch span across the Mississippi River. The bridge was fabricated, and the superstructure built, by American Bridge Company, New York, one of the largest bridge companies in American history. The bridge's designer, Ned L. Ashton, was one of Iowa's most influential engineers.
Unprocessed Field note material exists for this structure: N244
Survey number: HAER IA-73
Building/structure dates: 1940 Initial Construction