Route N Conceptual Study in St. Charles County

MoDOT Open House Style Public Meeting for Route N Improvements

The Missouri Department of Transportation (MoDOT) and St. Charles County held an open house-style meeting to discuss the Route N Expansion Project, as well as review the Hopewell/Duello (funded) intersection signalization on Tuesday, March 4, 2025, from 4:00 p.m. to 7:00 p.m. at the National Equestrian Center, 6880 Lake St Louis Blvd, Lake St Louis, MO 63367.

The Route N Expansion Project is a vital effort to address local and regional traffic growth, enhance safety, and plan for future development. At the meeting, attendees will:

• Review conceptual layouts (Unfunded future improvements)
• Review Hopewell/Duello intersection signalization (Funded)
• Learn about the project’s progress and timeline.
• Provide input on proposed designs and improvements.

No formal presentations were made during the open house-style meeting. Attendees can stop by at any time during the meeting to view the project details and speak with representatives from MoDOT, St. Charles County and project consultants.

Access for people with disabilities is available. People with disabilities who require special services at the public meeting should notify Senior Communications Specialist Jack Wang by February 26 at 314-453-1814 so arrangements for those services can be made.

Project Information 

MoDOT and St. Charles County are working together on improving Route N from Route Z on the west to I-64 interchange on the east. This effort began in late 2023 with preliminary design completion anticipated by December 2025.

This work is the next step towards designing the improvements identified in the Planning and Environmental Linkages (PEL) Study completed in 2022.

As the next step, the project team will confirm assumptions made in the PEL Study and further detail corridor improvements in order to identify the future roadway footprint, impacts and funding needs. 

Improvement alternatives will be evaluated during conceptual design, with a resulting single concept that will be further developed through preliminary design by October 2025.

The continued growth in western St. Charles County has caused significant increases in both local and regional traffic along Route N west of I-64. The purpose of the Route N Expansion is to improve access and safety, reduce congestion, improve pedestrian connectivity, and plan for future growth.
Proposed improvements include:

• Additional lanes
• Improved Traffic flow
• Safer intersections
• Upgraded corridor