Highway 407 East Phase 1 includes a 20.3-kilometre extension between Brock Road in Pickering to Harmony Road in Oshawa, and connects 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.
Below are some link(s) with updates and information on the progress of the 407 expansion:
http://www.on-sitemag.com/news/highway-407-drives-east/1003482224/