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The New I-64
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Project Overview

Highlights of The New I-64 project include:

  • The rebuilding and upgrading of all pavement, bridges and interchanges between Spoede Road in St. Louis County and Kingshighway Blvd. in St. Louis City
  • New high quality interstate-to-interstate connection between I-64 and I-170
  • Addition of one lane in each direction between Spoede Road and I-170
  • Increased traffic flow through better design, with elimination of short, tight entrance/exit ramps and merges, addition of dedicated exit lanes
  • Enhanced safety with wider shoulders

Project Limits

Project Limits graphic
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Aerial Views of Preliminary Design

Brentwood - I170 - Hanley Interchanges map
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Aerial Views of Preliminary Design

I-170/I-64 Interchange Animation


Regional Traffic Improvements

Regional Traffic Improvements graphic
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MoDOT and its contractor are preparing the region's roads for the extra traffic during the I-64 construction project.  Interstates 70 and 44 will not have any construction work, plus MoDOT is striping an extra lane in each direction.  Interstate 70 will have an extra lane between Interstate 270 and Interstate 170.  Interstate 44 will have an extra lane striped from Interstate 270 to Grand Avenue.  Any needed maintenance work on these roads will be completed at night.

MoDOT is also upgrading the traffic signals on Page Avenue (MO 364), Olive Street Road (MO 340), Manchester Road (MO 100) and Lindbergh Boulevard (US 61/67) to make these alternate routes move traffic as efficiently as possible.  Other spot improvements will be made by MoDOT and its contractor to improve traffic flow during construction.