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. 
• The program has been divided into eight project segments. Additionally, a ninth project to improve and expand the availability of truck parking along the corridor is also been included in the program as part of a federal INFRA grant.

Project Award and Construction: 2024-2030

• To date, five Improve I-70 projects have been awarded and four are currently under construction across the state.
• 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 above, also known as the Improve I-70 Placemat, 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.  

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.

Sign Up For Project/Construction Update Press Releases

To receive specific project updates and construction related press releases, sign up for Improve I-70 e-mails by visiting MoDOT e-Update and  selecting one or more of the Improve I-70 options under the Improve I-70 heading. If you already have an e-Update account, you can login and adjust your e-mail preferences.