In its planning stage, the depot was originally called East Rail Maintenance Facility, but by opening day became known as the Whitby Rail Maintenance Facility.[2][5] By 2015, the consortium Plenary Infrastructure was awarded a $859.2-million contract to design, build and finance the facility, and maintain it for 30 years.[2] Of the $859.2-million contract cost, the Province of Ontario contributed $764.4 million and the federal government $94.8 million.[5] Construction started in the summer of 2012 with Construction Substantial Completion awarded on March 14, 2018.[6]
The depot will support GO Transit Regional Express Rail, offering faster, more frequent commuter train service across the Greater Toronto Region.[5] Another reason for building the Whitby Rail Maintenance Facility was to reduce the operational risk of having only one depot. It provides operational flexibility under emergency situations in case there are operational issues at the Willowbrook Rail Maintenance Facility).[1]
Facilities
The Whitby Rail Maintenance Facility has capacity to accommodate 22 twelve-car trains but was expected to house only 13 upon its opening.[2] It provides mechanical maintenance, body repair, as well as daily cleaning and operational services. It is designed to support 30 years of future service expansion as well as the future electrification of GO Transit rail lines.[7] The facility requires 300 to 400 workers.[5]
The 46,000 m2 (500,000 sq ft) site has the following features:[6]
Shop area in the main building of about 19,000 m2 (200,000 sq ft)
13 on-site storage bays for 12-car passenger trains:[7]
2 preventative maintenance bays
11 canopy tracks for storage
11 bays for locomotive repair
12 bays for coach repair
Dedicated buildings for paint shop, locomotive wash, track maintenance, passenger train wash, and wheel shop
Administrative offices with crew centre in the main building