State Roadwork Will Require Detour on Route 123 on April 12, 2021

The Connecticut Department of Transportation is announcing the replacement of a culvert under Route 123 (Smith Ridge Road) that will require detour of traffic northbound and southbound for 21 days from April 12 to May 2, 2021.  The project is located about 1.1 miles north of the intersection of Route 123 (Smith Ridge Road) and Route 106 (Silvermine Road) between the New Canaan Field Club and 183 Smith Ridge Road. The project is approximately 200 feet in length as measured along Route 123.

The majority of the work is to be completed within a 21 consecutive calendar day window with a traffic detour in which Route 123 will be closed and vehicular traffic detoured onto town roads. However, due to noise restrictions, the Contractor may only perform construction activities from 7:00 AM to 7:00 PM for the entire project.  The detour is currently scheduled to start April 12, 2021 and will end May 2, 2021.


Route 123 – Northbound and Southbound from Canoe Hill Road to Silvermine Road:

  • Will be closed for 21 days and vehicular traffic will be detoured onto town roads, from April 12, 2021 to May 2, 2021.
  • The Northbound traffic will be detoured to Silvermine Road and the Southbound traffic will be detoured to Canoe Hill Road.
  • There will be directional signs installed to guide motorists through the detour.
For local traffic:

Access from the south will be available to: #164 Smith Ridge Road (New Canaan Field Club) and #159 Smith Ridge Road and all address numbers lower.
Access from the north will be available to: #183 Smith Ridge Road and #230 Smith Ridge Road and all address numbers higher.

Outside the time frame of the full roadway closure, the public can expect single lane closures and alternating one-way traffic on Route 123 between the hours of 9:00 AM and 3:00 PM from March 23, 2021, until the expected contract completion date of May 20, 2021.