Districts Impacted

Central
Counties Impacted
Phelps
Route Impacted
BB
Work Type
Bridge Rehabilitation
Highway Feature
BNSF Railway
Planning Phase

project Project Summary

The Phelps County Route BB bridge in Rolla over Oak Street, Olive Street, and BNSF Railway, was built in 1974. While the supporting structures are in good condition, the bridge deck - or driving surface - is in need of repairs. The project will include repairing the bridge deck as well as adding new approach pavement and pavement markings.  

Project Progress

Complete
Planning and Design Phase

The Missouri Department of Transportation and its consultant have designed new improvements to extend the functional life of the bridge.  

The estimated total cost, including engineering and construction, is $3.2 million. This cost may change.  

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Complete
Project Letting, Award, and Notice to Proceed

This project was part of MoDOT's January 2026 letting when contractors submitted competitive bids. The Missouri Highways and Transportation Commission awarded the contract as part of their February 2026 meeting. The $1,676,851 contract was awarded to Concrete Strategies, LLC. 

 

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Not Started
Project Construction and Traffic Impacts

The notice to proceed is March 6, 2026, but the exact schedule of work and planned start date are not yet known. Work is expected to take 104 days, subject to change.  

The Route BB bridge is expected to remain open, with construction staged to only close half of the bridge at a time. For motorists' safety while work is occurring overhead, Oak Street and Olive Street below the bridge will be closed during construction, with traffic directed to use surrounding local roadways. 

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Not Started
Project Completion

At this time, the project is expected to be completed by Dec. 1, 2026. 

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Project Location

FREQUENTLY ASKED QUESTIONS  

Why is MoDOT replacing the bridge? 

Built in 1974, the deck is in need of repairs. The project consists of repairing the bridge deck as well as adding new approach pavement and pavement markings. 

How will this bridge work affect traffic? 

Construction is expected to take place in 2026.  

The Route BB bridge is expected to remain open, with construction staged to only close half of the bridge at a time. For motorists’ safety while work is taking place overhead, Oak Street and Olive Street below the bridge will be closed during construction, with traffic directed to use surrounding local roadways. Work is expected to take 104 days, subject to change. 

What is the expected completion date for this project? 

At this time, the project is expected to be completed by Dec. 1, 2026. 

What if I have further questions?  

You may email cdcr@modot.mo.gov or call us at 888 ASK MODOT (1-888-275-6636). Please reference Route BB Bridge Rehabilitation over Oak Street, Olive Street, & BNSF Railway in Phelps County on your inquiries. 

How can I stay updated on the project’s progress? 

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

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