No, it's major overkill. There is existing capacity on all of the bridges.
In terms of lanes over the river, that's not the issue. The issue is what happens at either end. If we can expedite the flow of traffic.... We've done a very detailed analysis that can actually reduce the number of lanes over the rivers at the international border crossings, and the borders would function equally well, if not better. That's the bottleneck.
The Champlain Bridge, for example, in Montreal, will have six lanes of traffic, and it carries 137,000 vehicles. If the Gordie Howe bridge were to take every car from the Ambassador Bridge.... It handles less than 19,000 vehicles, just to put it in perspective. It's not the lanes over the river that make a difference.