Boonville Bridge, Spanning Missouri River at U.S. Route 40 & State Routes 5 & 87, Boonville, Cooper County, MO

Significance: The Boonville Bridge is a monumental, multiple-span structure of six steel truss spans and ten concrete approach spans, with an overall length of 2,666'. Constructed during the earliest years of the Missouri State Highway Department, the bridge was one of the first major links in Missouri's developing transportation system. The bridge served simultaneously as part of U.S. Route 40, State Routes 5 and 87, and the National Old Trails Highway, while having a positive impact on the economic development of central Missouri.
Unprocessed Field note material exists for this structure: N808
Survey number: HAER MO-80
Building/structure dates: 1922- 1924 Initial Construction
Building/structure dates: 1937- 1938 Subsequent Work
Building/structure dates: 1950 Subsequent Work