Northwest Parkway St. Louis

Vector145SmallWelcome to the Northwest Parkway web site. Here you can learn about the project, get the latest updates, and provide your input.

Northwest Parkway is a transportation project that will look at creating an improved, more reliable connection between the residential areas of North St. Louis County and employment centers in the Earth City and Riverport areas. The existing link, consisting largely of two-lane roads in the Missouri River floodplain, is subject to unpredictable flood-related road closures. The closures cause unreliable travel conditions and traffic disruptions. 

The current project will identify a transportation alternative that will:

  • Eliminate flood-related detours between Charbonier Road and Earth City Expressway;
  • Address capacity needs in northwestern St. Louis County;
  • Enhance safety along St. Louis County roadways in the study area; and
  • Provide access to the economic opportunities within St. Louis County.


St. Louis County Department of Highways and Traffic is sponsoring the project, in cooperation with the Missouri Department of Transportation and the Federal Highway Administration.

Project Progress

latest news2

St. Louis County announces the Tentative Preferred Alternative for the Northwest Parkway EIS. For more information, please click here.

Revised Project Schedule Update

Please send comments to: 

Mr. Adam Spector
St. Louis County Dept. of Highways & Traffic
Div. of Highway Planning
1050 N. Lindbergh
St. Louis, MO 63132