The safety and economic prosperity of Missourians depends, in part, on an I-70 that grows along with the state and nation. That’s why the Missouri Department of Transportation is working to improve I-70. Today, many portions of the facility are strained beyond capacity and outdated interchange designs which increase delays and dampen economic activity.
Missouri’s FY2024 budget from the General Assembly and signed into law by Governor Parson provides $2.8 billion in General Revenue for the costs to plan, design, construct, reconstruct, rehabilitate and repair three lanes in each direction on nearly 200 miles of Interstate 70, from Blue Springs to Wentzville.
MoDOT has been working on the best plan to be efficient and innovative in how the 200 miles of I-70 will be delivered. As of May 2025, the Improve I-70 individual project limits have been updated and now include eight total project segments across the state. The nearly 200 miles will be broken into various contracts that will be awarded throughout 2029. Total completion of the corridor is anticipated by the end of 2030. For Improve I-70 project specific information, visit the Improve I-70 Projects page.
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MoDOT to narrow eastbound I-70 lanes between Warrenton and Foristell
WARREN COUNTY – The Missouri Department of Transportation will begin narrowing eastbound Interstate 70 lanes in two locations between Warrenton and Foristell as part of the Improve I-70 Warrenton to Wentzville Project. All work is weather permitting...
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SCHEDULE UPDATE: Overnight single-lane closures on U.S. Route 63 in Columbia starting next week
JEFFERSON CITY, Mo. – One lane in each direction of U.S. Route 63 in Columbia will close overnight for the next few weeks. The driving lane will remain open, but the passing (left) lane on north and southbound U.S. Route 63 between Conley Road and...
Overall Timeline
MoDOT has designated an overall project team to guide the I-70 work across the state. This website will continue to serve as the information source for updates and public input as the plan for design and construction is developed.
Environmental Documents Updated (2023-2024)
- Environmental documents have been re-evaluated to identify any changes in the road and its conditions, traffic and environmental impacts since the studies were last completed in the mid 2000s. To view the 2023-2024 updated documents, click here.
Project Development: 2023-2024
- Project Development involves the design process and determines how the work should be broken into segments. MoDOT has worked with the private sector on plans to sequence project delivery based on traffic impacts and industry capacity to get the best value.
Construction:
- All contracts will be awarded by 2029. Total completion of the corridor is anticipated by the end of 2030, dependent upon contractor and material availability.
The infographic below summarizes what’s already under contract or completed, what’s funded in the state’s road and bridge program (the STIP) and in General Revenue.
Download the PDF Version
Program Goals
The overall goal of the Improve I-70 project across Missouri is “to provide a safe, efficient, environmentally sound and cost-effective transportation facility that responds to corridor needs as well as expectations of a national interstate.”
Specifically, the focus is on the following:
- Provide a third lane of travel to eastbound and westbound I-70 from Blue Springs to Wentzville.
- Improve the interstate while modernizing the existing pavement and bridges.
- Increase the efficiency of freight movements along I-70.
- Minimize construction impacts with a focus on work zone safety, communication, and construction staging.
- Expand a diverse workforce through the creation of jobs.
In addition, the updated analysis of I-70 will include:
- Transportation Innovation – Upgrade the design to include technology for connectivity, intelligent transportation systems and other emerging transportation innovations.
Governor Parson and the General Assembly have provided a once in a lifetime investment into this critical transportation corridor. These 200 miles of I-70 are some of the first interstate to be built in the country 60 years ago. This is a monumental challenge to deliver, but MoDOT is the transportation expert. Along with our private sector partners in engineering and construction, we will deliver.