4/30/2012 12:02:00 PM Milton-Madison Bridge reopens ahead of schedule with temporary ramps
The Milton-Madison Bridge reopened ahead of schedule at 11:59 p.m., Saturday following the demolition of approach spans and the connection of temporary ramps. The use of temporary ramps is one in a series of steps being taken to keep the bridge open to traffic during construction. The bridge, which carries U.S. 421 across the Ohio River between Milton, Ky., and Madison, Ind., had been closed since Wednesday, April 25.
A 36-foot vehicle length restriction is now in effect for the bridge due to the limited turn radius of the temporary ramps. The existing 3-ton weight limit for the bridge remains in place.
The replacement of the Milton-Madison Bridge originally entailed a year-long closure. But innovative design and construction methods made it possible for the bridge to remain open during construction for all but a total of 10 days. Using a method called "truss sliding," the new 2,400-foot-long steel truss bridge will be built on temporary piers and slid into place on top of the existing piers which are being strengthened to meet modern standards. Construction began last year and is expected to be complete in 2013.