Chariton County Route 139 bridge replacement project update

Construction paused during settlement phase

St. Joseph, Mo. – Those living near or driving by the Grand River Overflow Bridge on Chariton County Route 139 have not seen activity at the site for some time, but there is a good reason. The bridge construction required significant amounts of dirt to be moved and placed at the site, which needed time to settle and compact before construction on the new bridge can continue.

The settlement phase is almost complete and, pending geotechnical testing, the contractor plans to resume work building the new structure over the Grand River Overflow on Monday, May 17. The roadway is scheduled to reopen to all traffic in early July 2021. During the closure, motorists may use one of two signed detours:

  • North: Over Route H, U.S. Route 65, U.S. Route 36, and Route 5
  • South: Over U.S. Route 24, Route 11, Route CC, and Route E

Maps of the detour routes and more information about the project may be found on the project’s website: Chariton County Route 139 at the Grand River Overflow Bridge | Missouri Department of Transportation (

The Missouri Department of Transportation contracted with Boone Construction Co. to replace the structurally deficient 57-year-old bridge. This bridge is included in Gov. Mike Parson’s $351 million Focus on Bridges program, which will repair or replace 250 bridges across the state.

All work is weather-permitting, and schedules are subject to change.

MoDOT asks drivers to work with us by always buckling up, keeping your phone down, slowing down and moving over in work zones. Know before you go and check what work zones you might encounter at

Also at, sign up online for work zone updates. Information is also available 24/7 at 888-ASK-MODOT (275-6636) or via social media.

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