Missouri highway and bridge projects are progressing across key transportation corridors, with major work focused on I-55, I-64, and I-70. Ongoing efforts include bridge rehabilitation, resurfacing, sign replacements, and expansion to accommodate long-term traffic demands.
Ongoing Projects
Work is currently underway on several key segments:
- I-55 Corridor: Bridge and pavement improvements are in progress between I-44 and River Des Peres. In Jefferson County, corridor upgrades include adding a third lane and improvements to 27 bridges.
- Route H: Resurfacing work is actively underway.
- I-55 and I-70: Sign replacements and bridge rehabilitation projects are in motion along both corridors.
- I-64: The westbound Daniel Boone Bridge over the Missouri River is undergoing rehabilitation.
- I-270: Bridge widening is taking place over Conway and Ladue roads.
- Route 61/67 (Lindbergh Boulevard): Roadway improvements between Swan Drive and Route D are also advancing.
Planned or Future Projects
Several projects are in planning or pre-construction phases:
- I-44: More than 30 bridges are scheduled for maintenance, with work expected to begin in upcoming phases.
- I-64 and I-170: Sign replacements are planned to modernize corridor signage.
- I-55: Bridge replacements are planned for Loughborough Avenue and Weber Road.
- I-64 Outer Road at Dardenne Creek: A bridge replacement is scheduled.
- Envision I-70: Preliminary studies are ongoing as part of a long-term plan to reimagine I-70.
- St. Charles County: Widening and realignment efforts are planned on I-70, including updates to the I-70/I-64/US 40/US 61 interchange.
Recently Completed Projects
For reference, several significant projects have recently reached completion:
- I-44: Replacement of the Broadway bridge
- Poplar Street Bridge: Upgrades and modernization
- I-64 at Jefferson Avenue: Completion of a full interchange project
These ongoing, future, and completed Missouri highway and bridge projects reflect a statewide commitment to improving safety, reducing congestion, and modernizing infrastructure on some of the region’s most vital travel routes.
