Why is MoDOT undertaking this project?
Updated 5/26/2022
Due to deteriorating conditions, a project is planned to replace the decks of the following four Northwest Missouri bridges in 2022. The project will bring the bridge decks up to current standards and improve the driving surface.
Daviess County Route Z Sampson Creek Bridge - under construction, road closed: 4/18/2022
Harrison County Route A Interstate 35 Bridge - under construction, road closed: 5/16/2022
Mercer County Route D Sandy Creek Bridge - scheduled to begin 6/6/2022
Putnam County Route YY Sandy Creek Bridge - scheduled for Aug. 1 through Sept. 9, 2022
Districts Impacted
Proposed Project Timeline
The Missouri Department of Transportation is designing a project which would replace the decks of the following bridges:
- Daviess County Route Z Sampson Creek Bridge - under construction, road closed: 4/18/2022
- Harrison County Route A Interstate 35 Bridge - under construction, road closed: 5/16/2022
- Mercer County Route D Sandy Creek Bridge - scheduled to begin 6/6/2022
- Putnam County Route YY Sandy Creek Bridge - scheduled for Aug. 1 through Sept. 9, 2022
The project was part of the November 2021 letting. At that time contractors submitted competitive bids for the project.
The Missouri Highways and Transportation Commission reviewed all bids submitted for the project and awarded the project contract to Emery Sapp & Sons, Inc. at their December 2021 meeting.
By contract, January 31, 2022 is the earliest the contractor may begin construction (the Notice to Proceed date).
As of 4/5/2022, the contractor's planned schedule of work is as follows:
- Daviess County Route Z over Sampson Creek just west of Pattonsburg - April 18 through mid-June, 2022
- Harrison County Route A over Interstate 35 - May 16 through Sept. 9, 2022
- Mercer County Route D over Sandy Creek south of U.S. Route 136 - June 6 through July 2022
- Putnam County Route YY over Sandy Creek - Aug. 1 through Sept. 9, 2022
As of 4/5/2022, the contractor's planned schedule of work is as follows:
- Daviess County Route Z over Sampson Creek just west of Pattonsburg - April 18 through mid-June, 2022
- Harrison County Route A over Interstate 35 - May 16 through Sept. 9, 2022
- Mercer County Route D over Sandy Creek south of U.S. Route 136 - June 6 through July 2022
- Putnam County Route YY over Sandy Creek - Aug. 1 through Sept. 9, 2022

Daviess County Route Z
The bridge on Daviess County Route Z over Sampson Creek is scheduled for a deck replacement project. During its most recent inspection, the 60-year-old bridge's deck was given a rating of 4 (poor condition). This project will replace the deck, bringing it up to current standards, improving the driving surface and will eliminate the current posting restricting the speed of trucks over 21 tons.
Closure date: April 18, 2022
Reopening date: mid-June, 2022

Harrison County Route A
The bridge on Harrison County Route A over I-35 is scheduled for a deck replacement project. During its most recent inspection, the 29-year-old bridge's deck was given a rating of 4 (poor condition). This project will replace the deck, bringing it up to current standards and improving the driving surface.
Closure date: May 16, 2022
Reopening date: Sept. 9, 2022

Mercer County Route D
The bridge on Mercer County Route D over Sandy Creek is scheduled for a deck replacement project. During its most recent inspection, the 27-year-old bridge's deck was given a rating of 4 (poor condition). This project will replace the deck, bringing it up to current standards, improving the driving surface and will eliminate the current posting restricting the speed of trucks over 18 tons.
Closure date: June 6, 2022
Reopening date: through July 2022

Putnam County Route YY
The bridge on Putnam County Route YY over Sandy Creek is scheduled for a deck replacement project. During its most recent inspection, the 27-year-old bridge's deck was given a rating of 5 (fair condition). This project will replace the deck, bringing it up to current standards, improving the driving surface and will eliminate the current posting restricting the speed of trucks over 19 tons.
Closure date: Aug. 1, 2022
Reopening date: Sept. 9, 2022
Frequently Asked Questions
Will MoDOT close the road during construction?
Yes, all of the routes will close at the bridge during construction.
What is the planned detour?
There are no planned, signed detours. Motorists will need to seek an alternate route during the closures.
Why not build a bypass?
Based on the cost/benefit ratio, building bypasses would not be a prudent use of taxpayer funds. Bypasses also could have negative impacts and disruption to private property.
Will MoDOT need to acquire any right of way?
No, MoDOT did not need to acquire any temporary or permanent right of way for this project.
How long will construction take?
The contractor will have 304 days to complete the construction of all four bridges per contract.
Who can I contact if I have further questions?
Questions about the project may left by calling 888 ASK MODOT (1-888-275-6636).
How can I stay updated about the project?
Use the form below to sign up for project-specific updates delivered directly to your email inbox.
Project Information
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Daviess County Route Z bridge now open
ST. JOSEPH, Mo. – The Daviess County Route Z bridge over Sampson Creek is now open. The bridge, located just west of Pattonsburg, was closed in late April for a rehabilitation project lead by contractors from Emery Sapp & Sons, Inc. working with the...
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Mercer County Route D bridge rehabilitation project to begin soon
ST. JOSEPH, Mo. – A project to rehabilitate the Sandy Creek Bridge on Mercer County Route D, south of U.S. Route 136, will begin soon. The Missouri Department of Transportation has contracted with Emery Sapp & Sons, Inc. to replace the bridge’s deck...