Wash. Rev. Code § 47.17.569
A state highway to be known as state route number 310 is established as follows: Beginning at a junction with state route number 3 near Oyster Bay, thence easterly to a junction with state route number 304 in Bremerton.
[ 1991 c 342 s 30.]
Effective dates—1991 c 342: See note following RCW 47.01.425.