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Types of Safety Improvements

Modified Right-Turn Angles Drivers in various parts of St. Louis County and Jefferson County may see some roadway improvements intended to enhance how far drivers can see when they make a right turn, increasing safety for them and pedestrians as they ...

Procurement

Timeline, Industry Meeting information, Letters of Interest

Boone County I-70 Re-Evaluation

What's Happening?  MoDOT is conducting a study with its consultant team to identify ways to improve the interstate as it crosses through Boone County. This section of I-70 is an 18-mile stretch from just east of Route BB (Exit 115) to just east of ...

St. Louis Work Zones July 3-9

07/02/2025

ST. LOUIS—-- To reduce congestion and ease travel leading up to and during the Independence Day holiday, MoDOT will suspend most work on interstates and state highways, starting Thursday, July 3 at 12 p.m.

Traffic will still be restricted in areas...