Gribblenation

Washington State Route 599 is a 1.75-mile freeway entirely contained within the City of Tukwila located in King County.  WA 599 is a north/south route connecting I-5 to WA 99 and is former alignment of US Route 99. This blog is part of the larger Gribblenation US Route 99 Page.  For more information pertaining to the other various segments of US Route 99 and it's three-digit child routes check out the link the below. Gribblenation US Route 99 Page Washington State Route 599 There isn't much to WA 599 as a route but there are some neat signs like this WA 599 "Begin." The Light Rail from SeaTac International Airport crosses above WA 599 near Marginal Way. There are only two exits on WA 599; the first is at Interurban Avenue while the second is at Tukwila International Boulevard.  Tukwila International Boulevard is another former alignment of US 99 which predated the freeway WA 599 runs on now. North of Tukwila International Boulevard the route bec...