St. Louis District

Construction I-44 Meramec River

Meramec River Bridges

Construction begins on the I-44 Meramec River Bridge project just west of I-270

Study St. Charles County Missouri Route N Wentzville Lake St. Louis

Route N (St. Charles County) Study

MoDOT, along with FHWA, is conducting a National Environmental Policy Act (NEPA) Study on Route N from west of South Point Prairie Road east to the I-64/Route 364 interchange.

Road conditions Weather Flooding Real-time Congestion

Roadway conditions

Get your real-time roadway conditions around St. Louis at Gateway Guide

I-44 construction in St. Louis City

MoDOT is replacing or renovating several bridges in St. Louis City along I-44. See more about those projects, or others along I-44 here.

Latest News

  • MoDOT to close Vandeventer under I-44 overnight next week


    ST. LOUISAs part of continuing construction work on six bridges in St. Louis City, crews will close Vandeventer under I-44 three nights next week.

    The closures are to set girders for the new westbound I-44 bridge over Vandeventer. Weather...

  • St. Louis Work Zones for July 11-17


    ST. LOUISDrivers who use Vandeventer in the city should be aware of delayed construction on the Vandeventer bridge. Work that was scheduled for earlier in the week was rescheduled for tonight, July 10; Thursday, July 11 and Friday, July 12 between...

  • MoDOT closes EB Route 370 ramp for a week


    July 9, 2019 – For immediate release


    MoDOT closes EB Route 370 ramp for a week


    ST. CHARLES COUNTY – Drivers who regularly use the westbound I-70 to eastbound Route 370 ramp will need to seek alternate routes until bridge work is completed next...

Other construction projects

Riverview resurfacing project

See the latest information on the Riverview (Route H) resurfacing project.

Route 109 over Route 100

A current project widening a bridge and making roadway improvements at  Route 109 over Route 100  in Wildwood.

Safety Design Build project

Construction continues to improve safety at 31 locations in the greater St. Louis region

Multimedia area

Photos & video


MoDOT Flickr
Concrete for the Meramec River Bridge foundations

Meramec Bridge


Photos on Flickr
Sliding the Poplar Street Bridge 9 feet downstream

Moving the PSB


Video on YouTube
Construction on Route 109 near Wildwood

Work on Route 109


Photos on Flickr