The Connecticut Department of Transportation (CTDOT) is announcing the replacement and/or overlay of extruded aluminum highway sign panels on existing sign supports and revising the exit numbering system along the entirety of I-91 in various towns from New Haven to the Connecticut state line beginning Thursday, October 15, 2026.
The existing extruded aluminum sign panels have exceeded their useful service life. Replacing these highway signs along I-91 enhances retro-reflectivity and improves visibility and readability for motorists, particularly at night and during adverse weather conditions.
In addition, this project will also modernize I-91’s exit numbering system from an outdated sequential numbering system to a mileage-based format, to meet federal standards and provide consistency for drivers traveling throughout the region.
The work is being performed by The Quaker Corporation and is scheduled to be completed in September 2028.
For more information, including the new exit numbers and an interactive map, visit CTDOT's exit renumbering website.
LANE CLOSURE/DETOUR INFO
Motorists can expect temporary lane and shoulder closures of I-91NB/SB in various Towns as work progresses throughout the project. Traffic control personnel and signing patterns will guide motorists through the work zone. The work schedule for this project includes days and nights from 9:00 a.m. to 3:00 p.m. and 6:00 p.m. to 6:00 a.m. Monday to Friday.
Motorists should be aware that modifications or extensions to this schedule may become necessary due to weather delays or other unforeseen conditions. Motorists are advised to maintain a safe speed when driving in this area.