RCW 47.17.808State route No. 599.A state highway to be known as state route number 599 is established as follows:Beginning in the vicinity south of Seattle at a junction with state route number 5, thence in a northwesterly direction west of the Duwamish river to a junction with state route number 99 in the vicinity of South 118 street south of Seattle.[ 1971 ex.s. c 73 s 23.]
Washington Legal Code