List of highway route numbers in Oregon Mainline routes Mainline routes

| Number_ | South_west_end | North_east_end | Formed | Eliminated_ |
|---|---|---|---|---|
| Oregon Route 126 Business | I-105/OR 99/OR 126 in Eugene | OR 126 in Springfield |  |  |
| Oregon Route 130 | US 101 southwest of Hebo | OR 22 at Dolph | 2002 |  |
| Oregon Route 131 | Oceanside | US 101/OR 6 in Tillamook | 2002 |  |
| Oregon Route 138 | OR 38 at Elkton | US 97 south of Chemult | 1960s |  |
| Oregon Route 140 | OR 62 near White City | NV 140 towards Winnemucca, NV | 1960s |  |
| Oregon Route 141 | I-5 in Wilsonville | OR 217 in Beaverton | 2003 |  |
| Oregon Route 153 | OR 18 at Bellevue | OR 221 east of Hopewell | 2002 |  |
| Oregon Route 154 | OR 153 | OR 233 southwest of Dayton | 2002 |  |
| Oregon Route 164 | I-5/OR 99E in Millersburg | I-5/OR 99E north of Jefferson | 2002 |  |