This four-year project rehabilitates or resurfaces 14 bridges along I-55 between I-44 in the city of St. Louis and Lindbergh in St. Louis County.

A project to replace overhead signs along the I-55 corridor between the Ste. Genevieve County Line and the Poplar Street Bridge.

The Illinois Department of Transportation is currently working on a new Chain of Rocks bridge over the Mississippi River. This project will include an updated interchange on I-270 at Riverview in Miss...

Crews are replacing overhead signs along the I-70 corridor in St. Louis City as well as St. Louis and St. Charles counties.

The Safety Improvements Project is being developed to reduce fatal and serious injury crashes in MoDOT’s St. Louis District for pedestrians and other roadway users. This project is a partnership betwe...

A project set to resurface Missouri Route 100 (Chouteau/Manchester) in the city of St. Louis. The department is working with partners to consider options to improve safety along the corridor prior to ...

Construction has begun on a resurfacing project along the stretch of Route H (Hall Street) between Adelaide and Riverview in the city of St. Louis.

This map details the location and type of construction projects planned for the city of St. Louis in 2025-2026.

Planning is currently underway to make various updates to more than 30 bridges along I-44 in the city of St. Louis and St. Louis County.

A project to replace overhead signs along I-64 between the Poplar Street Bridge and I-70 in St. Charles County, and to replace signs along I-170 between I-64 and I-270.

MoDOT is working with the community to determine the future of the corridor in terms of needs and desired outcomes. Before MoDOT makes any improvements to the corridor corridor, it will evaluate the e...

MoDOT is in the early stages of planning a project along Route D between Tucker and the city of St. Louis limits. Since the department is early in the planning stages now, it is working with the commu...

A project to replace the Loughborough Ave. bridge over I-55 and the Weber Road bridge over I-55.

The City of St. Louis and Great Rivers Greenway are in the process of updating many city streets based on the Bike St. Louis Phase 3 plan. Some of the improvements to state roadways have been complete...

As part of preliminary efforts to improve Interstate 70 across the state of Missouri, MoDOT completed a planning and environmental linkages (PEL) study for the corridor between the city of St. Louis a...

This project made updates to Gravois in the city of St. Louis, including incorporating bike lanes in certain sections, and updating signals and pedestrian crossings.

This project replaced the Broadway bridge over I-44 as well as the ramp from the I-70 express lanes to Broadway.

This project made updates to the I-64/I-55 bridge across the Mississippi River, including constructing dual lanes to the bridge from I-44/I-55 and to the south to I-44/I-55

This project installed a center median and resurfaced much of Riverview.

This project constructed roundabouts at three locations along Natural Bridge in the city, as well as made several safety updates along the corridor, including wide medians, mid-block pedestrian crossi...

This project constructed a full interchange on I-64  between Jefferson Avenue and 22nd Street in the city of St. Louis.