Milton–Madison Bridge

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The Milton–Madison Bridge (also known as the Harrison Street Bridge) is a continuous truss bridge that carries U.S. Route 421 over the Ohio River between Milton, Kentucky and Madison, Indiana.

Description

The new bridge has a Script error: No such module "convert".-wide road bed, plus a Script error: No such module "convert". cantilevered pedestrian-only path. Bicyclists are banned from the sidewalk, but may use the new bridge's Script error: No such module "convert". shoulders.[1] The new bridge also features an ADA-compliant pedestrian walkway.[2]

This bridge is the only vehicular crossing of the Ohio River for Script error: No such module "convert". going upstream (the Markland Bridge near Vevay, Indiana) and Script error: No such module "convert". downstream (the Lewis and Clark Bridge in northeast Louisville).[3] The bridge provides the shortest distance between Indianapolis, Indiana, and Lexington, Kentucky.[4]

Original bridge

File:Central span P4100232.jpg
The original bridge in 2005
File:North tower P4100233.jpg
Detail of ironwork on the bridge in 2005

The original bridge had two lanes and a main span of Script error: No such module "convert". and total length of Script error: No such module "convert".. The original bridge had a deck width of a mere Script error: No such module "convert"., and above the deck the vertical clearance was Script error: No such module "convert"..

Built by J.G. White Engineering Corp., construction was started in 1928, and completed in 1929, at the cost of $1,365,101.84. It was opened for traffic on December 20, 1929.

In 1939, the bridge was purchased by the state of Kentucky.[5] Originally a toll bridge, on November 1, 1947, at noon the toll was removed.[4] In 1970, Kentucky sold rights to the side of the bridge in Indiana to that state.[5]

In 1997 the bridge was refurbished with a new deck and other improvements.[3] This was after a 1995 study which could not agree on a new bridge location, so $10 million was used for the refurbishment.[6]

By 2009, the original bridge was considered functionally obsolete and structurally deficient.[7] It had a sufficiency rating of 33 out of a possible 100; its superstructure condition rating was considered "poor".[3] Modern trucks were unable to safely use the old bridge. It carried approximately 10,000 cars a day.[6]

Current bridge

Planning and construction

File:Madison Bridge 19-10-16 384.jpg
The new bridge in 2019
File:Milton–Madison Bridge 2024c.jpg
Deck of the new bridge in 2024

A Milton–Madison bridge study was begun by the Indiana Department of Transportation and Kentucky Transportation Cabinet on August 26, 2008. The study had to take in account the Madison Historic District, which is a National Historic Landmark, and the National Environmental Policy Act.[6] As of 2009, one of the boons of the new bridge would be to aid a $20 million "resort and entertainment center" where a cotton mill once stood.[8] The Indiana Department of Transportation (INDOT), in a partnership with the Kentucky Transportation Cabinet (KYTC), designed a new bridge to replace the original bridge. The new project was headed mostly by INDOT.[9]

The old structure was replaced with a completely new continuous truss which was constructed on temporary piers adjacent to the operational span between 2011 and 2012. The original bridge was removed except for several piers in the waterway, which were rehabilitated and widened. A new, wider Script error: No such module "convert". steel-truss superstructure was slid into place along steel rails and plates, a construction method called "truss sliding." Scour mitigation was also performed on the existing piers.[2][10]

Construction for the new bridge began in the fall of 2010, with the old bridge remaining open during work on the piers. Walsh Construction Company planned to close the bridge for only 10 days during construction rather than an anticipated year-long closure.[2] Emergency ferry service during the 2012 and 2014 bridge closure periods was provided by Madison, Indiana-based, Madison Milton Ferry LLC, in partnership with Anderson Ferry of Hebron, Kentucky. Passenger ferry service was provided by Madison-based Rockin Thunder Jet Boat Rides LLC during the bridge closure for the final slide. In 15 days over 4000 passengers and 12 dogs were transported in a 6-passenger Jet Boat between Milton Kentucky and Madison Indiana.

On March 11, 2014, only four days before the truss slide was scheduled to begin, construction workers were installing a mechanism to facilitate the slide when a steel bearing on the southeast corner of the bridge dislodged, causing the bridge to drop by at least Script error: No such module "convert". and injuring one worker.[11] Work was conducted to replace the steel bearing ten days later.

Opening

The new crossing opened to vehicle traffic at 7:20 PM on April 17, 2014, and a pedestrian sidewalk opened on October 30 of that year.[12] The cost of the replacement was $103.7 million.[13]

Gallery

See also

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References

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  1. ↑ Script error: No such module "citation/CS1".
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  3. ↑ a b c Script error: No such module "citation/CS1".
  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ a b https://bridgestunnels.com/location/milton-madison-bridge/
  6. ↑ a b c Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "citation/CS1".

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External links

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