Welcome to the I-270 North Project
Dunn Road at Washington St
The closure will allow the removal of the existing intersection pavement and rebuilding the intersection with new pavement to connect to the new Washington St./Elizabeth Ave. bridge over I-270.
Old Halls Ferry Bridge
Congrats North County St. Louis, Millstone Weber, and MoDOT for the NEW Old Halls Ferry Bridge. Celebrate our virtual ribbon cutting with us and explore the bridge, it's construction, and new features.
& Dunn Rd
Entrance Ramp Closure
MoDOT will close Bellefontaine Road entrance ramp to westbound I-270 at Dunn Road beginning September 8.
Washington St. /
N. Elizabeth Ave.
Watch our drone footage of the Washington St. / N. Elizabeth Ave. Bridge Demolition. The new bridge is scheduled to be open to traffic around Thanksgiving of this year.
MAKE it HOME
by slowing down in work zones
MoDOT and its contractor Millstone Weber are keeping safety at the forefront of the construction process and maximizing work zone safety for the public and our workers. Let's all arrive home alive.
Closed between Ford Ln. and Polson Ln. beginning Tuesday, 08/04 at 9 a.m.
Construction is ramping up! Beginning June 8th, 2020, the ramp from NB Lindbergh to I-270 will be closed for construction.
Announcements and Construction Alerts
2020 Detours Schedule
- I-270 EB off-ramp to Washington/Elizabeth Closure Duration: 1.5 years
- I-270 EB on-ramp from New Florissant Closure Duration: 3 months
- Old Halls Ferry over I-270 Closure Duration: 4 months
- NB Lindbergh to WB I-270 loop ramp Closure Duration: 2 years
- Pershall Road near Coldwater Creek Closure Duration: 18 Months
- Dunn Road at Old Halls Ferry Closure Duration: 1 Month
- Bellefontaine to WB I-270 Ramp Closure Duration: 3 Months
- Both Directions I-270 at Washington/Elizabeth Closure Duration: 3 Days
- Washington/Elizabeth over I-270 Closure Duration: 3 Months
- Pershall Road between New Halls Ferry and Old Halls Ferry Closure Duration: 1 Month
- Dunn Road Closed at Washington Closure Duration: 1 Month
- Pershall Road Closed at Elizabeth Closure Duration: 1 Month
This schedule is subject to change.
News Release: MoDOT will close Dunn Rd. at Washington St. starting Monday, October 12 at 6 a.m.
Motorists who regularly use I-270 in north St. Louis County should be aware that the Missouri Department of Transportation will close the intersection of Dunn Rd. and Washington St. at 6 a.m. Monday, October 12 for three weeks. Read More
News Release: MoDOT will close eastbound and westbound lanes of I-270 north at Washington/Elizabeth for two nights next week
Motorists who regularly use I-270 in North St. Louis County should be aware that the Missouri Department of Transportation will close all eastbound I-270 lanes at Washington/Elizabeth nightly beginning Friday, October 16. Read More
News Release: MoDOT will close I-270 North at Lindbergh Blvd. for 15-30 minute intervals Friday night - early Saturday
Drivers who plan to travel I-270 near Lindbergh Blvd. this weekend should be aware that the Missouri Department of Transportation (MoDOT) will close both eastbound and westbound I-270 at Lindbergh for 15-30-minute intervals throughout Friday night and Saturday morning. Read More
News Release: MoDOT will close Bellefontaine Road entrance ramp to westbound I-270 at Dunn Road beginning September 8
Westbound traffic will detour using northbound Dunn Rd. to the intersection with Benham Rd. and take southbound Route 367 to access westbound I-270. All detours will be marked. Read More
News Release: MoDOT closes I-270 North this weekend at Washington Street/Elizabeth Avenue for bridge demolition
Crews will close I-270 in both directions from 9 p.m. on Friday, August 28 until 5 a.m. Monday, August 31 to demolish the Washington Street/Elizabeth Avenue bridge over the interstate. Read More
Closure Dunn Road at Washington Street Closure
Closure Bellefontaine & Dunn Rd Entrance Ramp Closure
Closure Pershall Road at Old Halls Ferry Closure
Closure Washington / Elizabeth Bridge
Closure Pershall Rd. between Ford Ln. and Polson Ln.
Closure NB Lindbergh to WB 270 on ramp
The I-270 North Design Build Project will improve mobility on the mainline, at interchanges, and on the outer roads. It aims to reduce traffic congestion faced by local users and interstate travelers.
Interstate 270 North (I-270N) from James S. McDonnell Boulevard to Bellefontaine Road in St. Louis County.
Construction is anticipated to begin Spring 2020 and completed December 2023.
The I-270 project is needed to improve current conditions on I-270, including outdated highway design, deteriorating infrastructure, and reducing traffic congestion.
What we are hearing
This project is one of the many success stories that is helping advance our region in supporting the global supply chain. ”
We thank MoDOT and the Bi-State Regionalism of our elected leaders for supporting this $278 million project and for the accelerated project schedule. ”
St. Louis Christian College thanks the Missouri Department of Transportation for all of your hard work in improving Interstate 270. Thank you so much. ”
I'm glad we're devoting the time, materials and dollars to the citizens of North County so that in the end, they will have a nice, new infrastructure that's safe. ”
I just want to congratulate MoDOT and its partners. We look forward to the next couple of years and the great outcome at the end. ”
I'd like to say congratulations on the groundbreaking of the much needed I-270 North Project. ”
We appreciate all of the hard work that's been done to get us to this point, and now let the construction begin. ”
MoDOT in conjunction with all of the key stakeholders, as well as all of the municipalities surrounding this area and homeowners have gotten together over the last two years, with MoDOT facilitating the meetings making it easier for us to give input. Now it's time for this project to launch. ”
It's already thriving, but with the additions and all of the things that they are going to do to this highway, it's going to be even better. ”
With so many working people in our community, it will be important to my residents to have a new and more efficient highway to shop, to go to work and to travel. ”
With so much unfortunate news that we are hearing each and every day during these trying times, it is so refreshing to announce and to celebrate a major development project in north county that will benefit so many people. ”
It is an honor and a privilege to participate in MoDOT's Virtual Groundbreaking to kick-off the I-270 North Project. This project is particularly important for Christian Hospital. ”
The I-270 North Project brings to life a well thought -out design that improves safety, and adds lanes for better mobility and less congestions. On behalf of the Christian North East family, I want to thank the entire MoDOT team for all of your hard work. ”
With the first phase of this project starting in Florissant, MO and closing a portion of Elizabeth, we are all very excited to see this get started. ”
I-270 is one of the most traveled corridors in the St. Louis Metropolitan Region and this is a much-needed upgrade. Thank you to everyone who made this project happen. ”
The $278 million I-270 North project is an investment in the infrastructure, workforce and economic development of St. Louis County. This project is a positive economic development tool for North County. ”
I'm grateful for MoDOTs commitment to the community that relies on I-270. ”
I'm also excited about this upgrade, even through the temporary inconveniences because it will increase mobility with well-thought out plans and new technology that will help to make North County the place to live, work and play. ”
So on behalf of my family and those that I am blessed to represent, thank you MoDOT and here is to a project that is on time, on budget and displays North County excellence. ”
I'm excited for the I-270 North Project to begin as this will eliminate a lot of the accidents and travel clusters that happen on a daily basis. So, congratulations I-270 North Team and I look forward to when everything is complete. ”
I'm glad that the Missouri Department of Transportation is moving forward with plans to update the I-270 North Corridor. I know the hard work and dedication shown by everyone who came together to help make this project a reality, including the MoDOT staff. ”
Congratulations to the North County Community and MoDOT for this Virtual Groundbreaking for the $278 million dollar I-270 North Project. ”
I am excited that the I-270 project has begun. North County has been in need of improved highways to reduce congestion and accidents along this corridor. ”
Thanks to MoDOT for all of these great upgrades. They are much needed and we all will be safer commuting on I-270. So, stay safe St. Louis and thank you MoDOT. ”
I'm very excited about the upgrades happening with I-270. The upgrades throughout the corridor, the safety precautions on the outer roads (etc.,) — I'm really looking forward to it. ”
I'm looking forward to the changes they are going to make in North County. I think it's well overdue and I care about the area that I live in. ”
Our community will flourish, it will look better, it will be better. When people come up and down 270 or West Florissant they will see our facelift and I'm quite sure they will be coming back. ”
I'm really pleased to see that they are starting that now. We really need that as I mentioned before and I think people will really appreciate it. ”
… may slow down traffic temporarily for a certain period of time but again it's important to renovate the highway and make traffic even better in the long run. That's the important thing. In the long run. ”