Status: Construction begins late in 2025
In 2024, MoDOT conducted a Road Safety Audit of Route 100 in the City of St. Louis. When the road is repaved, much of the corridor will have fewer lanes, which tends to slow down drivers and lead to less aggressive driver behavior. Raised medians will be added in sections where a turn lane is not needed, which will prevent drivers from using the center lane to pass. A protected bike lane will be included along much of the corridor. MoDOT will also make the pedestrian crossings more visible.
Click here for Missouri Route 100 Pavement Resurfacing project updates from MoDOT.