Abstract

The I-270 North DB project is a $278M project in North St. Louis County. Safety and mobility were increased through a series of innovations, including additional lanes on highly-congested I-270, conversion of existing 2-way outer roads to 1-way, reconfiguring interchanges, TSMO enhancements, ITS upgrades, and pedestrian upgrades. The project also included significant public outreach which required creativity due to the pandemic.

Session Number

91

Session Title

I 270 North Design Build Project

Track Title

Design/Construction

Location

STEW 302

Date of Version

March 2022

Start Date

3-16-2022 4:00 PM

End Date

3-16-2022 4:50 PM

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Mar 16th, 4:00 PM Mar 16th, 4:50 PM

I 270 North Design Build Project

STEW 302

The I-270 North DB project is a $278M project in North St. Louis County. Safety and mobility were increased through a series of innovations, including additional lanes on highly-congested I-270, conversion of existing 2-way outer roads to 1-way, reconfiguring interchanges, TSMO enhancements, ITS upgrades, and pedestrian upgrades. The project also included significant public outreach which required creativity due to the pandemic.