Mercer U.S. Route 136 Grand River Overflow Bridge traffic switch delayed

ST. JOSEPH, Mo. - Louis-Company, LLC, in coordination with the Missouri Department of Transportation, is working on a project to replace the deck of the Mercer County U.S. Route 136 Grand River Overflow Bridge, west of Princeton. The contractor has delayed the planned traffic switch to begin construction of the north side of the bridge by one day to Sept. 15 through 16. This work is weather-dependent, and schedules may change again.

Traffic Impacts:

• During the traffic switch: while the contractor is moving from the south to the north side of the bridge on September 15 and 16, motorists will experience intermittent closures of up to 15 minutes at the bridge work zone. Contractor crews will be flagging/directing traffic during these times.
• Construction: the bridge will continue to be narrowed to one lane with signals directing traffic. A 15-foot width restriction will remain in place.

The project was scheduled to be completed by October 2026, but due to contractor delays, the bridge is now expected to reopen in mid-November 2026.

For more information about this project, visit: https://www.modot.org/projects/missouri-route-136-bridge-deck-replacement-mercer-county.

All work is weather-permitting, and schedules are subject to change. MoDOT asks drivers to work with us by always buckling up, keeping your phones 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 for eUpdates. Information is also available 24/7 by calling 888-ASK-MODOT (275-6636) or visiting www.modot.org/northwest.

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