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Daniel Boone Bridge

Daniel Boone Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: November 2, 2013

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Key Facts

Facility Carried / Feature Intersected
I-64, US-40, and US-61 (Northbound and Westbound) Over Missouri River
Chesterfield: St. Louis County, Missouri and St. Charles County, Missouri: United States
Structure Type
Metal Continuous 16 Panel Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal 6 Panel Rivet-Connected Warren Deck Truss, Fixed
Construction Date and Builder / Engineer
1935 By Builder/Contractor: Kansas City Bridge Company of Kansas City, Missouri and Engineer/Design: Missouri State Highway Commission

Technical Facts

Rehabilitation Date
Main Span Length
514 Feet (156.5 Meters)
Structure Length
2,614 Feet (796.7 Meters)
Roadway Width
32.2 Feet (9.81 Meters)
4 Main Span(s) and 4 Approach Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge no longer exists!

Bridge Status: This bridge was demolished in 2016 after it was replaced!

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Original Plans For This Bridge

View MoDOT Historical Documentation For This Bridge

This bridge was a rare example of a riveted continuous through truss. It was particularly uncommon because it had four main spans, but they were configured as two two-span continuous truss bridge components. As a result, if the placement of piers is ignored, the bridge looks like it has two spans, instead of four. In 1991, the bridge was turned into a one-way couplet with the construction of a modern truss bridge next to it. The two bridges made a good comparison since the modern bridge lacks the beauty of the historic bridge with its simple beams that lack riveted elements like v-lacing and lattice.

Missouri once had one of the largest collection of large-span riveted continuous and cantilever truss bridges in the country, not surprising given the Missouri River runs right through the state, and one side of the state is bordered by the Mississippi. Nationwide large historic truss bridges of these types are not common yet are facing a staggering rate of demolition alongside an equally staggering lack of preservation. This is particularly true in Missouri, where preservation of bridges of this size is essentially non-existent with a couple exceptions in the City of St. Louis. The Missouri River has in particular been decimated, and the Daniel Boone Bridge will be one of the last remaining bridges of its kind on the Missouri River when it is demolished.

An excellent opportunity to preserve the Daniel Boone Bridge was dismissed. The Daniel Boone Bridge, which up until demolition serves full Interstate Highway traffic, could certainly have been left standing next to its replacement and been used for non-motorized traffic which cannot use the Interstate Highway itself. Even without rehabilitation, a bridge capable of carrying Interstate traffic could likely carry pedestrians for decades.

Be sure to view the historical documentation linked to at the top of this narrative to see a detailed history of this bridge, as well as original plan sheets for the bridge.


Photo Galleries and Videos: Daniel Boone Bridge

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Bridge Photo-Documentation
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Maps and Links: Daniel Boone Bridge

This historic bridge has been demolished. This map is shown for reference purposes only.

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