Skip to main content

Washington State Route 599



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.



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 becomes WA 99 and WA 599 ends.  There is a much better sign assembly explaining the change south of this one, but I wasn't expecting it and missed the photo.


Interestingly there is a gap in WA 99 from WA 518 north to the terminus of WA 599 which is spanned but Tukwila International Boulevard.   The routing of what is now WA 599 was constructed in the late 1950s and was part of Primary State Highway 1 WM (West Marginal).  When the route had been completed US 99 switched alignments apparently onto a multiplex of I-5 and may have been once been signed as US 99T.  The route has been designated at WA 599 since 1971.  This older map of the state highway system from 1956 shows how US 99 used to flow through from Tacoma through Seattle before the construction of I-5.

1956 Washington State Highway Map

Edit 5/13/18:  I was shown a 1970 map scan of downtown Seattle by Flickr user Arthur Allen showing the routing of WA 599 shown as WA 99T.  The map scan can be viewed here at the following link:

Arthur Allen Flickr Page showing a 1970 Map Scan of downtown Seattle

Comments

Popular posts from this blog

2018 Mojave Road Trip Part 2; The deadly desert highway (California State Route 127 and Nevada State Route 373)

After leaving Barstow via Old Highway 58 my next destination was in Death Valley.  To access Death Valley from rural San Bernardino County required a trek on north on Interstate 15 to California State Route 127 which becomes Nevada State Route 373 at the state line. Along I-15 I encountered the road sign oddity that is Zzyzx Road about eight miles south of Baker.   Zzyzx Road is a four mile road that used to go to the Zzyzx Mineral Springs and Health Spa.   The spa was founded in the 1940s and the owner made up the name "Zzyzx" to claim it was the last word in the English Language.  The spa has been shut down since the 1970s and is now part of a Desert Studies Center for California State University. The southern terminus of CA 127 in Baker is located at I-15 exit 246.  CA 127 is a 91 mile north/south highway which runs to the Nevada State Line in Inyo County.  CA 127 is called Death Valley Road from I-15 northward.  South of CA 127 ...

Finding the Pre-Emption Road of New York State

  The Pre-Emption Road (or rather a series of roads named Pre-Emption Road) follows a survey line called the Pre-Emption Line, drawn in the early days of the United States. The story begins with Massachusetts and New York having competing land claims to modern day Western New York State that have their roots in colonial charters granted by the British. After the Revolutionary War ended, this land became the frontier of the nation and its settlement became a priority for the new American government. During this era, there were a lot of competing land claims that needed to be settled. It was no different with the land claims between New York State and Massachusetts. On November 30, 1786, Massachusetts and New York sent representatives to Hartford, Connecticut to resolve their competing land claims. In less than three weeks, the representatives had reached a compromise. Massachusetts would receive pre-emption rights, meaning the right to sell the land after the Indian title ...

What's In a Name?: When the Roads Really Do Tell a Story

  Our tagline on the Gribblenation blog is "because every road tells a story". Some roads tell different stories than others. Along our travels, we may see historic markers that tell us a little story about the roads we travel or the places we pass by. Some historic markers are more general, as to telling us who lived where or what old trail traversed between two towns. During my travels across New York State and other states or provinces, I pass by many historic markers, some with interesting or amusing references to roads. I wanted to highlight a few of the markers I've seen along my travels around the Empire State and help tell their stories. Those stories may be as specific as explaining the tales of a tree that was used to help measure a distance of eight miles from Bath to Avoca in Steuben County, as referenced on the Eight Mile Tree historical marker above. They may also help point the way along historical roads first used centuries ago, or may help tell a local l...