Highway 407 East Extension – Phase 1

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Ranking for 2014: 39

Industry Sector: Transportation

Specific Sector: Highway

Range: $1 billion - $5 billion

Project Value: $1,000,000,000

Provincial: $1 billion

Government Funds Involved:

Funding Source: P3

Location: Pickering to Oshawa, Ontario

Estimated End Date of Substantial Completion: 2016


This first phase extends Highway 407 20.3 kilometres east from Brock Road in Pickering to Harmony Road in Oshawa. Six interchanges will allow for on/off access to the extension from local north/south roads. This phase will also connect Highway 407 East to Highway 401 with the West Durham Link, a 10-kilometre, four-lane divided highway to be built east of Lake Ridge Road in Whitby; and require a five-kilometre realignment of Highway 401 to accommodate the West Durham Line.

There will be six lanes on Highway 407 East from Brock Road to the West Durham Link; four lanes from West Durham Link to Harmony Road, and four lanes on West Durham Link. In total, there will be approximately 148 new lane kilometres with up to 11 interchanges including two highway-to-highway interchanges, 31 major water-crossing structures, and 16 road crossings. Phase 1 is currently under construction and is expected to be open to traffic in spring 2016.

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