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.

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 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

Former US Route 101 through Sargent

Sargent is a ghost town and siding of the Southern Pacific Railroad located in southern Santa Clara County. The original alignment of US Route 101 was aligned through Sargent via what is now known as Old Monterey Road. Sargent was bypassed gradually due to shifts of the alignment of US Route 101 which occurred during 1941 and 1950. Pictured as the blog cover is a view on Old Monterey Road which is now no longer accessible to the general public. Below is a scan of the 1935 Division of Highways Map of Santa Clara County which depicts the original alignment US Route 101 through Sargent. Part 1; the history of US Route 101 in Sargent Sargent lies on land which was once part of Rancho Juristac. During 1856 James P. Sargent purchased Rancho Juristac and plotted what was known as Sargent Ranch. By 1869 the Southern Pacific Railroad coast line reached the relocated town site of Gilroy. The Southern Pacific Railroad coast line would be constructed through Chittenden Pass by 1871 whic

Tulare Lake returns

During the winter of 2023 California experienced one of the wettest seasons in recent decades. Enough snow and water were deposited into the Sierra Nevada Mountains that the runoff was enough to partially reform Tulare Lake within San Joaquin Valley. Tulare Lake was once the largest lake west of the Mississippi River by surface area. Tulare Lake has been largely dried for the past century due to irrigation divisions and upstream impoundments. This blog will examine the history of Tulare Lake and its recent return. Pictured as the blog cover is Tulare Lake from 19th Avenue in Kings County during early May 2023. Tulare Lake can be seen near its maximum extent below on the 1876 P.Y. Baker Map of Tulare County . Part 1; the history of Tulare Lake Tulare Lake is the largest remnant of Lake Corcoran. Lake Corcoran once covered much of the entire Central Valley due to being it being located at a in natural low point from where mountain run-off would accumulate. Lake Corcoran is thou

US Route 95 in California

US Route 95 within California exists within San Bernardino County and Riverside County. US Route 95 within California is approximately 130 miles factoring multiplexes along Interstate 10 and Interstate 40. US Route 95 in California begins at the Arizona state line along the Colorado River near Blythe in Riverside County. US Route 95 follows the general course of the Colorado River north through the Sonoran Desert to the Mojave Desert towards Needles of San Bernadino County. US Route 95 enters Nevada north of Interstate 40 and the historic alignment of US Route 66. US Route 95 was extended to Blythe, California during July 1939. Upon US Route 95 entering California during 1939 it overlapped and deleted much of the original California State Route 195. US Route 95 was extended from Blythe into Arizona during June 1960. Part 1; the history of US Route 95 in California The corridor of modern-day US Route 95 in California first came to prominence during the run-up to the creation of

Gribblenation

Search This Blog