To support Connecticut’s investment in a new fleet of electric commuter rail cars, the Connecticut Department of Transportation (CTDOT) advanced a $75 million modernization effort at New Haven Yard. STV provided design services for the West End Rail Storage facility, a critical component that accommodates expanded storage, servicing and inspection needs for the New Haven Line. The project includes site layout, permitting, utilities, fire protection, lighting, traction power and operational support spaces, enabling the yard to function as a fully modernized maintenance and storage hub.
What challenges did STV address?
Transforming an aging yard facility into a modern electric rail storage complex required major site redevelopment and integration of new power, communications and utilities. CTDOT demolished a deteriorated building to make space for new infrastructure, while the project team had to incorporate overhead catenary, new trackwork and multiple support buildings in a constrained active rail environment. Meeting the power and operational needs of a new electric fleet demanded sophisticated traction power design and robust utility upgrades.
What solutions did STV deliver?
STV advanced a 30 percent design package that repurposed the former building site into the West End Yard. The design includes new storage and inspection tracks, overhead catenary, a traction power switching substation and feeders, communications and security systems, high mast lighting and upgraded storm and sanitary systems. A new staff and equipment support building and parts storage building were incorporated, along with a 480‑volt standby substation that powers existing diesel storage tracks. STV’s work ensures the yard can support expanded service and next‑generation commuter rail equipment.
How does this project benefit the region?
The upgraded yard increases service capacity along the New Haven Line, enabling CTDOT to deploy state‑of‑the‑art rail cars more efficiently. Improved storage and maintenance capabilities support reliable commuter service, reduce equipment downtime and enhance operational flexibility across one of the busiest corridors in the Northeast.
Key stats and accolades
- $75 million storage and maintenance facility
- New tracks, catenary, traction power substation and feeders
- New staff support and parts storage buildings
- 480‑V standby substation for diesel storage tracks
