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MADSION, Ind. – A Walsh Construction crew closed the U.S. 421 Milton-Madison Bridge around 2 a.m. the morning of March 11, after a steel bearing dislodged between a pier and the bridge. This incident happened at Pier 2, the first land pier on the Milton, Ky., side of the Ohio River. U.S. 421 across the Ohio River between Madison, Ind., and Milton, Ky., has been closed until further notice. (read more)
The Milton-Madison Bridge Project is a unique effort to replace the deteriorating US 421 Ohio River bridge between Milton, Ky., and Madison, Ind.
Through the use of innovative design and construction methods, the bridge remains open during construction, with the exception of a few days. Using a method called “truss sliding,” a new 2,428-foot-long truss bridge will “slide” into place atop the existing piers, which are being strengthened and reused. The new bridge will open to traffic in 2014
The fourth and final section of the old Milton-Madison Bridge was demolished on September 19, 2013. The other three sections of the 2,428-foot long bridge were demolished this summer using controlled explosives. The first explosive demolition took place on July 23, 2013 A second section was brought down on Aug 1. A 400-foot section was demolished on September 5 (video at right).
With the old truss gone, work focuses now on preparation for the bridge slide. The final step comes in 2014 when the new 2,428-foot-long bridge will be slid onto the renovated original piers. The bridge is expected to close for about a week while the slide and approach connections are completed.
With a live Web camera, traffic alerts and frequently updated project news MiltonMadisonBridge.com is the best place to follow construction progress. The construction photo gallery offers a close-up perspective on the project. Click on the “Contact” tab to ask questions or make comments about the project. We always respond promptly.