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Expect Work on McClay Road for Construction of Multi-Use Path

November 2, 2021

Centennial Greenway Phase 4 map 


The City of St. Peters, in conjunction with the Missouri Department of Transportation (MoDOT) and St. Charles City, is starting the Centennial Greenway Phase 4 project on Nov. 3, 2021. The project will add a 10-foot-wide multi-use path for bikes and pedestrians along the north side of McClay Road, with a one-foot stamped concrete buffer.


To allow construction, the northernmost lane of McClay Road will be closed and the center turn lane will be converted to a westbound lane. There should be two lanes of traffic maintained constantly, with minor delays possible during working hours (7 a.m.-3:30 p.m.).


The project will be the fourth phase of Great Rivers Greenway’s Centennial Greenway, which is a proposed 20-mile trail system intended to connect to Creve Coeur Park and the Katy Trail. The 10-foot-wide multi-use path will replace the existing 6-foot-wide sidewalk from McClay Village Drive to Hackmann Road. This is estimated to be a 120-day project.


Click here to download a PDF of the map.


This project is eligible to receive 80 percent funding through a Transportation Alternatives Program reimbursement grant administered through the East-West Gateway Council of Governments and MoDOT.
For more information, visit