Waterbury Branch trains scheduled to be replaced by buses through May 2027

All trains on the Waterbury Branch Line are scheduled to be replaced by substitute bus service from July 20, 2026, through May 31, 2027, under a service change announced by the Connecticut Department of Transportation.

For Waterbury commuters and other rail users, the announcement means nearly a year without train service on the branch. The City of Waterbury published the notice on its local-news page, identifying the change as one that affects Waterbury-area rail users.

What is changing

CTDOT says substitute buses will operate in place of every train on the Waterbury Branch during the scheduled period. The replacement is set to begin Monday, July 20, 2026, and continue through Sunday, May 31, 2027.

The change is tied to planned branch-line work and infrastructure needs. It is a temporary service substitution, not a permanent closure of the Waterbury Branch.

The practical effect for riders is a shift from rail service to road-based transportation for more than 10 months. The experience may vary by trip, depending on where a rider boards, where the rider is going and how the replacement service is arranged.

The city notice does not provide the detailed construction schedule or individual bus-routing information. Those operating details will be important to riders as the July 2026 start date approaches, including the locations and times for substitute buses.

Funding and infrastructure context

CTDOT’s Federal Fiscal Year 2026-2030 Transportation Infrastructure Capital Plan identifies current needs and future ridership demands on the Waterbury Branch Line. The plan lists $7.5 million in state funding for the Waterbury Branch project in federal fiscal year 2026.

The $7.5 million figure is a capital-plan funding listing, not a stated total project cost. The plan also provides infrastructure context but does not establish that every improvement described there will be completed on precisely the same timetable as the bus substitution.

That distinction matters because the service change gives riders a specific disruption window, while the capital plan describes funding and broader infrastructure needs. The two documents together connect the extended bus period with planned work on a branch that CTDOT is evaluating in light of both current conditions and future ridership.

What riders should watch for

The announced dates provide the main schedule now available for planning: substitute service is set to start July 20, 2026, and continue through May 31, 2027. The next useful information for passengers will be the detailed operating plan for the replacement buses and any updates to the work schedule.

Until those details are issued, the confirmed change is that all Waterbury Branch trains are scheduled to be replaced by buses throughout that period. The service substitution directly affects the rail connection used by Waterbury-area riders, while CTDOT’s capital plan identifies $7.5 million in state funding for the branch during federal fiscal year 2026.