The Project
The I-270 North Project will improve Interstate I-270 North from McDonnell Boulevard to Bellefontaine Road. The Project improves safety and reliability within the I-270 corridor, better links communities, and enhances traffic operations so that the public has a durable and maintainable transportation network. An outdated highway design, deteriorating infrastructure, and traffic congestion are all being addressed by the I-270 North project.
Aron Johnson
Community Member
Marlene Terry
State Representative,
District 66
Project Boundaries
The $278 million project directly impacts more than 6 municipalities along the interstate, with combined populations of approximately 135,000. It also sits in a corridor that is critical to local, regional and national movement of goods and provision of services.
The Project
Impacted Resident Data
MoDOT has and will continue to dedicate considerable efforts to engage all stakeholders throughout the corridor including residents, business owners, community officials, industry experts, and workforce diversity partners.
Population
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Mobility
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The Project
Aging Infrastructure
Most of the I-270 North infrastructure was constructed during the 1960s, when traffic volumes were much smaller. The Project upgrades include new bridges and reconstructed interchanges, more driving lanes, new pavement, and an updated outer road system.
| Poor Mainline I-270 Bridges | Annual Average Daily Traffic All (Trucks) |
|---|---|
| Coldwater Creek | 125K (22k) |
| Route N (New Florissant Rd) | 140K (25k) |
| Route AC (Old Halls Ferry Rd) | 110K (30k) |
Updates to deteriorating infrastructure at New Florissant Road (Route N) will include new pavement, signals, and pedestrian facilities.
The Project
High Traffic Volumes
The I-270 North Design Build Project is improving mobility on the mainline, at the interchanges, and on the outer roads.
I-270 EB & WB Crashes
(2013-2017)
| Fatal | Serious Injury | Total |
|---|---|---|
| 20 | 76 | 3,361 |
- 140,000 vehicles daily / 18% heavy trucks
- Eastbound
- 30% higher volumes than statewide rate
- 4 High Severity 2-mile segments
- Westbound
- Approximately the statewide volume rate
- 4 High Severity 2-mile segments
- Accidents