Counties Impacted
Route Impacted
Work Type
Bridge Replacement


The Castile Creek Bridge on Clinton County Route NN, located a mile east of Route K, is listed in poor condition and in need of replacement. The Missouri Department of Transportation plans to replace the bridge and widen it from one lane to two.  The letting process is scheduled for December 2022.

Project Progress

Planning & Design Phase

MoDOT's Planning and Design team plan to replace the Clinton County Route NN bridge and widen the bridge from one lane to two lanes.

Contract Letting

The contract for the bridge rehabilitation is part of the December 2022 letting for contractor bids. The project was awarded to Lehman Construction, LLC.

Contract Letting, Award & Notice to Proceed

Contractors may submit competitive bids during MoDOT's scheduled lettings. This project is scheduled to be a part of the December 2022 letting. The Missouri Highways and Transportation Commission will consider all submitted bids at their scheduled monthly meeting in January 2023. If the lowest submitted bid meets all necessary criteria, the MHTC may award contracts at that time.

When the project is awarded the Notice to Proceed date  - the earliest date on which the contractor could begin work - will be in February 2023.


The contractor will work with MoDOT to determine the exact schedule of work.

At this time, the roadway is expected to close during construction. The exact date of the road closure and the planned reopening date will be established after the contract is awarded.


The project's anticipated completion date is December 2023.


Frequently Asked Questions: 

Q: Why is MoDOT closing the road during construction?

A: MoDOT strives to be a good steward of taxpayer money. By closing the roadway, the contractor will be able to work more efficiently within a shorter construction period, saving taxpayer dollars and reducing the time period construction will affect motorists. During the closure, motorists will need to find an alternative route.


Q: Will MoDOT have to purchase any right of way?

A: Yes, MoDOT has worked with local property owners regarding right of way acquisition and/or easements near the bridge. 


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

A: Questions may be left by calling 888 ASK MODOT (888-275-6636) and asking for Project Manager Joyce Reynolds. 


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

A: Sign up for project-specific updates using the form below.