A state highway to be known as state route number 221 is established as follows:
Beginning at a junction with state route number 14 in the vicinity of Patterson, thence northerly to a junction with state route number 22 in the vicinity of Prosser.
RCW 47.17.425
State route No. 221.
1970 ex.s. c 51 s 86.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.