The US Massachusetts Bay Transportation Authority's (MBTA) Fiscal and Management Control Board (FMCB) has approved a contract with Barletta Heavy Division to carry out improvements at the Wellington Maintenance Facility.

The project will cost roughly $98.28m through fiscal year (FY) 2018 and will prepare the facility for the arrival of new Orange Line vehicles.

It will focus on rehabilitation of the Wellington Carhouse in Medford, which will enable it to provide an updated maintenance capability for the 152 upcoming new Orange Line cars.

Six pilot Orange Line cars are scheduled to be delivered in December this year, while the delivery of the full Orange Line production fleet is due to start from December 2018.

Improvements at the facility will include an expansion of the carhouse by one service bay to facilitate the maintenance a larger Orange Line fleet.

Additional works such as rehabilitation and modernisation of the existing lifts, cranes, wheel truing machinery, roof, MEP and various others have also been outlined for the project.

"The project will cost roughly $98.28m through fiscal year (FY) 2018 and will prepare the facility for the arrival of new Orange Line vehicles."

The development will also add elevators and other accessibility accommodations, as well as an electronics room for new vehicles.

MBTA received four bids for the project, which received an independent cost evaluation of $82.35m. Barletta Heavy Division was ultimately selected after providing the lowest bid of $72.58m.

The project forms a part of the Red Line / Orange Line Infrastructure Improvements programme, which carries a total estimated cost of $470.36m for FY18 and FY19.

The programme includes development projects such as the Orange Line Test Track and Wellington Yard, the Wellington Yard Expansion from Tracks 33 to 38, Wellington Yard Zones A and B, the Red Line Test Track project and the Cabot Maintenance Facility project.

It also includes the refurbishment of the Cabot Yard for Zones A through C and improvement of Red Line and Orange Line signal systems.