Miami Bridge

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Miami Bridge
Miami-bridge.jpg
Old Miami Bridge from the north
Carries Route 41
Crosses Missouri River
Locale Miami, Missouri
Other name(s) McDaniel Memorial Bridge
Named for Miami, Missouri
Characteristics
Material Concrete girder
Total length 1304.7 feet
Width 23.0 feet
Longest span 474.7 feet
No. of spans 11
Clearance below 16.5 feet
History
Engineering design by Sverdrup and Parcel
Constructed by Massman Construction Company
Construction end 1939
Closed October 5, 2009
Replaces Cantilever through truss bridge

The Miami Bridge, also known as the McDaniel Memorial Bridge, is a new concrete girder bridge that was built to replace a cantilever through truss bridge over the Missouri River at Miami, Missouri between Saline County, Missouri and Carroll County, Missouri. 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. 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. 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 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.

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Coordinates: 39°19′45″N 93°13′31″W / 39.3291°N 93.2254°W / 39.3291; -93.2254