SR 18/I-90 Interchange
The design concept for the SR 18/I-90 Interchange includes direct freeway-to-freeway ramps and roundabouts at I-90 on- and off-ramp intersections. The design provides enough capacity to keep traffic moving freely until at least 2035.
Tiger Mountain Summit Interchange
This design is a traditional "diamond interchange" that includes a bridge over SR 18 and access to Tiger Mountain Summit parking area.