A contractor has been chosen for the project to rebuild the two I-49 bridges over the Spring River immediately north of the Missouri 171 interchange in Carthage, according to the Missouri Department of Transportation.

A contractor has been chosen for the project to rebuild the two I-49 bridges over the Spring River immediately north of the Missouri 171 interchange in Carthage, according to the Missouri Department of Transportation.

At its meeting on Wednesday, Feb. 7, the Missouri Highways and Transportation Commission chose Capital Paving and Construction LLC, Jefferson City for the project to rehabilitate the northbound and southbound bridges.

The low bid was $4.5 million.

The project will require the north half of the interchange at Highway 171 and I-49 to be closed for the duration of the project.

Traffic traveling through the area on I-49 will not have to detour, but will be reduced to two lanes through the construction zone.

Drivers coming into Carthage from the north will have to use Highway 571 or Civil War Road to enter town.

Drivers wanting to get onto I-49 going north will have to use one of the other interchanges in Carthage.

MoDOT Lead Engineer Sean Matlock said message boards will mark the official detour, which will include the State Highway 571 exit north of town, County Route V to the east and then Highway 96 through Carthage.

The detour is designed to keep large trucks off the old North Garrison Street bridges between Carthage and Kendricktown.

 

Time and work

Matlock said the contract was only awarded last week so he hadn't met with the contractor to see when they want to get started and when the detours and closure signs will go up.

“The notice to proceed is set for March 1, with a completion date set for Dec. 15,” 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.

Workers will work on one bridge while traffic is diverted to the other, then when work is finished on the first bridge, traffic will be switched over to the completed bridge.

Matlock said the work will include replacing the driving surface on both bridges.

 

MoDOT-city agreement

MoDOT and the city of Carthage have reached an agreement allowing the contractor access to the bridges from city property under the bridges, near the city's waste-water treatment plant, and allowing the contractor to store material and equipment under the bridges.

MoDOT has agreed to restore the access road from Civil War Road back to the waste water treatment plant after the project is completed and repair any damage to that road.