Welcome to the webpage for State Project 0172-0550, Traffic Control Signal Replacements in Eastern Connecticut in Groton, Killingworth, Ledyard, New London, Norwich, Plainfield, Preston, Stonington, Windham, and Woodstock.
A virtual public informational meeting for the project was held on Tuesday, February 3, 2026, at 6:00 p.m. This meeting aims to inform the community about the proposed project, gather feedback, and answer any questions. The meeting will take place on Zoom, and registration is required. A question and answer (Q&A) session will immediately follow the presentation, which will be recorded.
The purpose of this project is to replace aging and outdated traffic signal infrastructure with new equipment to meet current standards. Replacement locations are selected annually throughout the state based on an assessment of existing conditions at state-owned traffic signals.
Replacements may include span poles, mast arms, pedestals, signal heads, span wires, conduits, vehicle detection equipment, and signing and pavement markings. Modifications will also be done to pedestrian control features which may include pedestrian countdown heads, push buttons, sidewalk ramps, and sidewalk connections.
There is potential for right-of-way impacts around new signal equipment and newly installed sidewalks at some project intersections.
Construction is expected to start in spring 2028. The estimated cost is $14 million with 100% state funds.
The proposed project description can be viewed here:
Comments and questions can be submitted to:
- DOTSignalReplacements@ct.gov
- (860) 594-2189
Please reference State Project No. 0172-0550 in the email or voicemail.
Non-English language closed captioning will be available on Zoom. The recording will also be posted following the meeting in CTDOT’s public meeting playlist at portal.ct.gov/ctdotVPIMarchive.
Additional Information for Public