The Process

The alternatives advanced by CTDOT for the Heroes Tunnel will consider options that involve rehabilitating the existing tunnel, replacement of the tunnel, enlargement of the existing tunnel, and construction of a third barrel, or a combination thereof.

All alternatives will be analyzed and properly vetted through the National Environmental Policy Act (NEPA) and Connecticut Environmental Policy Act (CEPA) documentation process.

The most significant option consists of a new northbound barrel along the eastern side of the tunnel with new access roadways on the approach and departure from the tunnel portals.

There are anticipated right-of-way impacts associated with proposed improvements to allow for drainage easements and temporary construction easements.

A tunnel liner study and traffic capacity analyses are being conducted and will be used to further advance the Environmental Assessment document.

2020 Project Updates

The Connecticut Department of Transportation is continuing work on the Heroes Tunnel Project and is moving forward with the Environmental Assessment document.

A Ventilation Study of the Tunnel was completed to evaluate and analyze the ventilation system, fans, electrical distribution system, fire detection system, fire protection system, emergency communications system, and traffic signs.

Based on the results, the Heroes Tunnel project team is further reviewing the tunnel liner, traffic capacity, and is completing the Preliminary Design phase of a maintenance project which will include ventilation and life safety upgrades.

The design team is working closely with the State Fire Marshal’s office, the local Fire Departments, and Emergency Operations teams to establish an Emergency Response Plan for incidents that may occur in the Tunnel.