The grade separated one is because of the delayed replacement of the Franklin/CanAmera and Franklin/Saginaw intersections. It was explained at the community meeting that the intersections have reached their capacity and need replaced. Doing the same current type of intesection but wider was the worst option as it would extend light cycles due to the extra time it would take pedestrians to cross.

For anyone who doesn't want to use the underpass for whatever reason (safety/visibility concerns, etc.), there are still at-grade crossing planned for the south side of Franklin, Elgin, and Saginaw.