The cross-overs are built north and south of the Central Avenue interchange on I-49 on the west side of Carthage and traffic will be constricted to two lanes on the interstate for the next few months.

The cross-overs are built north and south of the Central Avenue interchange on I-49 on the west side of Carthage and traffic will be constricted to two lanes on the interstate for the next few months.
The Missouri Department of Transportation said the contractor, Capital Paving & Construction LLC, Jefferson City, has completed construction of “cross-overs,” which will allow four lanes of traffic to be folded into two lanes north and south of the Central Avenue interchange.
MoDOT announced that traffic will be limited to one lane in each direction on the interstate starting on Monday, May 7, and the north side of the Central Avenue interchange will be closed.
The bridge was originally supposed to be closed on April 30, but MoDOT said the contractor had to change the date.
MoDOT described these impacts over the next few weeks to traffic on I-49 around the Central interchange.
• The northbound bridge will close the week of April 30 while the driving surface is rehabilitated moving two-way traffic into southbound lanes of I-49
• Drivers should expect delays and lane closings as contractor crews close northbound bridge and shift traffic to southbound bridge, reducing traffic to one lane in each direction.
• Once the northbound bridge is completed, contractor crews will move to the southbound bridge, shifting two-way traffic into the northbound lanes
• Motorists can expect significant traffic delays and a reduced speed limit of 60 mph through the work zone
• Drivers are urged to seek alternate routes around the construction
• Some work may occur on weekends
Weather and/or unforeseen delays will alter the work schedule and the official contract completion date is Dec. 15, although highway officials say they expect the project to be completed earlier than that.

Bridge restoration
Matlock said the work involves replacing metal parts of the bridge around the expansion joints in the bridge's surface.
Matlock said water and salt get into these expansion joints over time and causes the metal parts to deteriorate. Those bridges were built in 1984 when the four-lane U.S. Highway 71 was built around Carthage.
The steel caps that support the bridge girders and other metal pieces in three different places on each bridge will have to be replaced.
These parts had an expected lifespan of about 30 years and are ready for replacement.
Contractor crews will also remove the bridge deck/driving surface and replace it, beginning with the northbound bridge.

Detour
The northbound on ramp and the southbound off ramp at Central Avenue and I-49 will be closed for the duration of the project.
People wanting to get on the interstate going north or get off the interstate going south at Carthage will have to use any of the other four Carthage interchanges
The south half of the interchange will remain open, Matlock said, meaning northbound traffic will be able to exit and drivers will be able to get on I-49 going south at Central.
Matlock said MoDOT will establish a signed detour, for large trucks especially, at the Garrison Avenue exit north of Kendricktown to bring southbound trucks into Carthage by way of County Route V and Missouri Highway 96 because of the nine-ton weight limits on the three old bridges between Carthage and Kendricktown.
Cars can still use North Garrison Avenue (Missouri 571) to come into town.