Putnam County Route 129 bridge to be replaced

Northwest Bridge Bundle project

ST. JOSEPH, Mo. - The next bridge replacement project included in the Northwest Bridge Bundle project is scheduled at the end of this month. The Putnam County Missouri Route 129 bridge over North Blackbird Creek, located north of Unionville, will close beginning Monday, Sept. 30. The project to replace the bridge is expected to continue through February 2025.

During construction, motorists should seek an alternate route around the closure. The North Blackbird Creek Bridge was built in 1947 and has a traffic volume of approximately 417 vehicles per day.

"The Northwest Bridge Bundle is a Design-Build project which will replace or rehabilitate 31 poor-condition bridges in north central Missouri, and this bridge is number 11," stated Missouri Department of Transportation Project Director Michael Marriott. The Capital - Horner & Shifrin team was awarded the design-build contract by the Missouri Highways and Transportation Commission at its meeting in December 2023.

Design-build is a project delivery method in which one contracting team is selected to design and build the highway improvement under one contract. MoDOT provides the project goals, budget and schedule and the contractor team completes the work. This technique has been known to significantly save time and provide cost savings.

The full list of bridges to be replaced can be found on the Northwest Bridge Bundle web page.

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 traveler.modot.org.

Get project and work zone news straight to your email by signing up foreUpdates. Information is also available 24/7 by calling 888-ASK-MODOT (275-6636) or by connecting with us on social media.

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Northwest Bridge Bundle web page