Washington 508
Washington 508
| Termini | I-5 (exit 71)/US-12 east of Napavine to WA-7 in Morton |
| Length | 32.9 miles |
| "Where does it go?" | WA-508 runs from I-5/US-12 east of Napavine to WA-7 in Morton, via Onalaska. |
| EB Miles | Eastbound down | Westbound up | WB Miles | Multiplex | Near City or Town |
County |
| 0.0 | Forest
Napavine Rd W |
32.9 | Forest Napavine Rd W | Napavine | Lewis | |
| 0.3 |  |
32.6 | Forest Napavine Rd E | |||
| 0.3 | Forest Napavine Rd E | 32.6 | ||||
| 2.6 | Jackson Hwy | 30.3 | ||||
| 8.5 | Carlisle
Rd Leonard Rd |
24.4 | Onalaska | |||
| 13.5 | Centralia Alpha Rd | 19.4 | ||||
| 32.9 |  National Park Hwy Front St |
0.0 | Main Ave | Morton | ||