Removal of the I-84 Eastbound Exit 21 Off-Ramp in Waterbury

The Connecticut Department of Transportation (CTDOT) is announcing the start of improvements along I-84 eastbound, including the removal of the Exit 21 off-ramp structure (Bridge No. 03191F) and extending the auxiliary lane from the Route 8 northbound ramp to the Exit 22 off-ramp in Waterbury starting on Monday, June 15, 2026.

The purpose of this project is to improve safety and traffic operations by reducing congestion on I-84 eastbound in the vicinity of Exits 19 through 22. By removing the Exit 21 off-ramp from I-84 eastbound and extending the auxiliary lane, drivers will have more space to merge onto and exit from I-84 eastbound.

CTDOT Project No. 0151-0340 was awarded to Manafort Brothers, Inc. at a cost of $20,798,700.00 on January 16, 2026, and is scheduled to be completed in the summer of 2028. This project is administered by the Bureau of Engineering and Construction, Office of Construction, District No. 4 in Thomaston.

LANE CLOSURE/DETOUR INFO

There will be daily lane and shoulder closures on I-84 eastbound, between the Exit 30A on-ramp from Route 8 northbound to the Exit 22 off-ramp in Waterbury from Monday, June 15, 2026, through the spring of 2027, including limited overnight traffic closures and detours of the Exit 30A on ramp to I-84 eastbound. Expect overnight closures of I-84 eastbound between the hours of 9:00 p.m. and 6:00 a.m., Monday through Saturday. Traffic control signing patterns and police will guide motorists through the work zone.

Additionally, there will be nightly left lane and ramp closures on I-84 westbound, between the Union Street on-ramp and the Exit 19 off-ramp beginning on Monday, June 15 and continuing through July 31, 2026. The southbound on-ramp from Bank Street will be closed concurrently with left lane closures on I-84 westbound. Expect overnight closures of I-84 eastbound between the hours of 9:00 p.m. and 6:00 a.m., Monday through Saturday. Traffic control signing patterns and police will guide motorists through the work zone.

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.