Portland - Ontario (0)
| Critical Route |
| Paired Route |
| Sometimes Paired |
Washington - California (1)
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| Critical Route |
|
| Paired Route |
Portland - Coast (2)
|
| Critical Route |
|
| Paired Route |
Willamette Valley (North) - Coast (3)
|
| Critical Route |
|
| Paired Route |
Willamette Valley (South) - Coast (4)
|
| Critical Route |
|
| Paired Route |
Interstate 5 - Coast (5)
|
| Critical Route |
|
| Paired Route |
Interstate 5 - Central Oregon (6)
|
| Critical Route |
|
| Paired Route |
|