The $3.6-billion interchange, the largest construction project in the province, is over 60% completed and is on course to be finished by the end of 2020.

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Headaches, construction, delays and traffic aside, it’s an unbelievably orchestrated project that’s been part of the island of Montreal for the better part of a decade.

This morning, the Transport Quebec administration took to Twitter to show the transformations the interchange has gone through, over fifteen years, courtesy of an aerial view above the road network.

Say what you will about the project, the differences are pretty spectacular to see from such a vantage point.

Can you spot all 50,000 differences?

2004:

Turcot/Twitter

2019:

Turcot/Twitter