Districts Impacted

Northwest
Counties Impacted
Mercer
Route Impacted
136
Work Type
Bridge Deck Replacement
Planning Phase

Project Summary

The Grand River Overflow Bridge on U.S. Route 136 in Princeton is in need of a bridge deck replacement. The bridge was built in 1971 and carries approximately 1917 vehicles per day. 

MoDOT and consultants from HDR, Inc. are designing a project to replace the bridge deck, the approach pavement and install guardrail where warranted.

Project Progress

Complete
Planning & Design Phase

MoDOT and consultants from HDR, Inc. designed the bridge deck replacement project. 

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Complete
Public Input Opportunity

MoDOT will offer three opportunities to receive community feedback regarding the bridge deck replacement project.

  1. A public open-house meeting will be held on Tuesday, July 29, from 3:30-5:30 p.m. at Princeton High School (1008 E Coleman St, Princeton, MO 64673). Community members may stop by anytime between 3:30 and 5:30 p.m. to learn about the project.
  2. View the information on this webpage and utilize the form at the bottom of the page to submit your comments and/or sign up for project-specific updates.
  3. Mail your comments to:             

               Mercer County U.S. Route 136 bridge deck replacement

               Missouri Department of Transportation

                3602 North Belt Highway

                St. Joseph, MO 64506

         All comments must be postmarked by Tuesday, August 12.

We are committed to providing equal access to this event for all participants. If you need a reasonable accommodation or translation services, please contact NW District Communications at 816-901-4529 by Tuesday, July 22.

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Complete
Contract Letting

Contractors may submit competitive bids during MoDOT's scheduled lettings. This project was included in the December 2025 letting. The Missouri Highways and Transportation Commission awarded a $4,025,797.74 contract to Louis-Company, LLC at their meeting in January 2026. 

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Not Started
Construction Schedule

Construction is scheduled to begin on Monday, May 4. The bridge will be narrowed to one lane with temporary traffic signals, and a 15-foot width restriction will be in place. The project is scheduled to be complete in early October 2026.

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Not Started
Project Completion

All work must be completed on or before Dec. 1, 2026, to meet contract requirements.

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Project News

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Photos

Frequently Asked Questions:

Q: What will the impact to traffic be?

A: The bridge will be narrowed to one lane with temporary traffic signals in place during construction. Motorists should expect delays. A width restriction of 15-foot will be in place.

 

Q: Who can I contact if I have further questions?

A: Questions may be left by calling 888 ASK MODOT (888-275-6636) or emailing nwcr@modot.mo.gov.

 

Q: How can I stay updated on the project's progress?

A: Sign up for project-specific updates at the bottom of this page.

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Bridge from the side view

Need More Information?

We're here to help! If you're looking for additional information, you can contact us at: 

  • nwcr@modot.mo.gov
  • 1-888-ASK-MODOT (888 275-6636) - reference Mercer County U.S. Route 136 bridge deck replacement
  • Sign up for eUpdates: Customer Service Signon (mo.gov)