A state highway to be known as state route number 170 is established as follows:Beginning at a junction with state route number 17 west of Warden, thence easterly to Warden.[ 1970 ex.s. c 51 s 70.]
State route No. 170.
RCW 47.17.345 — under Chapter 47.17 State highway routes..
RCW 47.17.345