The Miami Bridge, also known as the McDaniel Memorial Bridge, is a new concrete girder bridge that was built to replace a

cantilever A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a canti ...

through truss A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or ...

bridge over the Missouri River at

Miami, Missouri Miami is a city in Saline County, Missouri, United States. The population was 175 at the 2010 census. History Miami was originally called Greenville, under which name it was platted in 1838. A post office called Miami has been in operation since ...

between

Saline County, Missouri Saline County is located along the Missouri River in the U.S. state of Missouri. As of the 2010 census, the population was 23,370. Its county seat is Marshall. The county was established November 25, 1820, and named for the region's salt sprin ...

and

Carroll County, Missouri Carroll County is a county located in the U.S. state of Missouri. As of the 2020 census, the county had a population of 8,495. Its county seat is Carrollton. The county was organized on January 2, 1833, from part of Ray County and named for C ...

. The Miami Bridge carries Route 41. The Miami Bridge was built in 1939, and its deck was replaced in 1983 as part of a rehabilitation project. The old bridge's main cantilever span was 474.7 feet, while the two anchor spans were each 415 feet in length, resulting in a total cantilever truss length of 1304.7 feet. There were 11 approach spans, including four Warren deck truss spans, three on the northern approach and one on the southern approach. All remaining approach spans were steel stringer (multi-beam/girder) spans. Total bridge length including approach spans is 2,071.9 feet. The bridge's deck width is 23.0 feet and it has vertical clearance of 16.5 feet. The bridge was constructed with the assistance of the Federal Administration of Public Works also known as the

Public Works Administration The Public Works Administration (PWA), part of the New Deal of 1933, was a large-scale public works construction agency in the United States headed by Secretary of the Interior Harold L. Ickes. It was created by the National Industrial Recove ...

. Sverdrup and Parcel were consulting engineers for the structure, and Massman Construction Company was the contractor. The original plans for the bridge show plans for the original wooden toll building that was once located on the bridge. According to the plans, the toll building was painted white, featured wooden Slow and Stop signs, and included a cast iron stove for heating. The Miami Bridge has been listed as eligible for the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

. According to Clayton B Fraser who conducted Missouri's 1992 Historic Bridge Inventory, the Miami Bridge was eligible for the National Register of Historic Places as an "outstanding, large-scale example of steel truss construction, located on important great river crossing." Despite its historic significance,

Missouri Department of Transportation The Missouri Department of Transportation (MoDOT, ) is a state government organization in charge of maintaining public roadways of the U.S. state of Missouri under the guidance of the Missouri Highways and Transportation Commission. MoDOT designs, ...

decided against rehabilitating the bridge and instead has decided to demolish the bridge's superstructure and erect a new bridge using the piers and abutment of the old bridge. The project will begin with the bridge's closure, scheduled for October 5, 2009.

References

Bridgehunter.com profile
{{coord, 39.3291, -93.2254, type:landmark_region:US-MO, display=title Buildings and structures in Saline County, Missouri Buildings and structures in Carroll County, Missouri Bridges completed in 1939 Road bridges in Missouri Former toll bridges in Missouri Concrete bridges in the United States Cantilever bridges in the United States Girder bridges in the United States

See also

References