Wash. Rev. Code § 47.17.695
A state highway to be known as state route number 513 is established as follows: Beginning at a junction with state route number 520 in Seattle, thence northerly and easterly to the vicinity of Sand Point.
[ 1991 c 342 s 38; 1971 ex.s. c 73 s 16; 1970 ex.s. c 51 s 140.]
Effective dates—1991 c 342: See note following RCW 47.01.425.