A state highway to be known as state route number 508 is established as follows:
Beginning at a junction with state route number 5 south of Chehalis, thence easterly by way of Onalaska to a junction with state route number 7 at Morton.
RCW 47.17.675
State route No. 508.
1970 ex.s. c 51 s 136.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.