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Liberty Bridge

MO-291 Northbound Bridge

   


Liberty Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: June 5, 2016
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Key Facts

Facility Carried / Feature Intersected
MO-291 Northbound Over Missouri River
Location
Sugar Creek: Jackson County, Missouri
Structure Type
Metal Continuous 14 Panel Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal Continuous 12 Panel Rivet-Connected Warren Deck Truss, Fixed
Construction Date and Builder / Engineer
1949 By Builder/Contractor: Mount Vernon Bridge Company of Mount Vernon, Ohio and Engineer/Design: Sverdrup and Parcel of St. Louis, Missouri

Technical Facts

Rehabilitation Date
2002
Main Span Length
460 Feet (140.2 Meters)
Structure Length
1882.3 Feet (573.7 Meters)
Roadway Width
24 Feet (7.3 Meters)
Spans
2 Main Span(s) and 6 Approach Span(s)
NBI Number
6353

Historic Significance Rating (HSR)

Bridge Documentation

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

View Missouri Historic Bridge Inventory Sheet For This Historic Bridge

Missouri was once home to an impressive collection of continuous and cantilever truss bridges, perhaps a larger collection than any other state. Today however, nearly all have been demolished, and nearly all that survive are planned for future demolition. Missouri has overseen one of the most complete annihilations of large-span historic truss bridges in the entire country. The loss of beauty, history, and engineering is incalculable. Bridges like this should be treasured landmarks. This bridge in particular, which today serves only northbound traffic with a newer parallel bridge serving southbound traffic, would seem to be a good candidate for long-term preservation given that the two bridges together provide four lanes for traffic. However, MoDOT has refused to (as Section 106 mitigation for demolition of similar bridges) develop a Historic Bridge Management Plan to ensure the long-term preservation of this bridge. This refusal is a strong indication that this bridge will eventually be targeted for demolition.

The southbound bridge was built in 1996.

In terms of engineering, this bridge offers a nice comparison: its approach spans are two-span continuous deck trusses, while its main spans are two span continuous through trusses. Its worth noting that two-span continuous deck truss bridges are somewhat uncommon (three-span configurations are more common).

Above: This bridge built as part of an impressive project to realign the Missouri River to eliminate a long, tight bend in the river. The old river is shown in the above drawing, and the new alignment, the alignment seen today, is shown as "future channel" outlined on the drawing.

Above: This photo shows the previous Missouri bridge, which was located on the old rivet alignment north of the existing bridges seen today. This former bridge was designed by the Strauss Bascule Bridge Co. of Chicago, Illinois and built in 1929.

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Photos and Videos: Liberty Bridge

Available Photo Galleries and Videos

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Bridge Photo-Documentation
Original / Full Size Photos
A collection of overview and detail photos. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution.
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Bridge Photo-Documentation
Mobile Optimized Gallery
A collection of overview and detail photos. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem (dial-up) users, or those who do not wish to wait for the longer download times of the full-size photos. Alternatively, view this photo gallery using a popup slideshow viewer (great for mobile users) by clicking the link below.
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View Video
CarCam: Northbound Crossing
Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.
View Video
CarCam: Southbound Crossing
Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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