RCW 47.17.075State route No. 18.A state highway to be known as state route number 18 is established as follows:Beginning at a junction with state route number 99 in the vicinity of northeast Tacoma, thence northeasterly by way of Auburn to a junction with state route number 90 west of North Bend.[ 1987 c 199 s 6; 1970 ex.s. c 51 s 16.]
Washington Legal Code