Washington 509

SB Miles	Southbound down	Northbound up	NB Miles	Google™	Multiplex	Near City or Town	County
0.0	E Marginal Way		35.2			Seattle	King
0.1			35.1
0.6			34.2
2.3
3.3			31.5
4.4			30.2			Burien
5.3			29.3			Burien
7.1	Des Moines Memorial Dr	Des Moines Memorial Dr	28.1		Des Moines Memorial Dr	SeaTac
7.6	S Normandy Rd		27.6		S 174th St	Burien
7.8	Ambaum Blvd S		27.4		S 174th St
8.0	S 174th St 1st Ave S		27.2		1st Ave S S 174th St
8.4	SW Normandy Rd		26.8		1st Ave S	Normandy Park
9.6	S 199th St		25.6
9.7	S 200th St		25.5
11.0	Des Moines Memorial Dr		24.2		Marine View Dr S	Des Moines
11.1	7th Ave S		24.1		Marine View Dr S
11.8	Marine View Dr S Old Highway 509 Kent Des Moines Rd		23.4		Kent Des Moines Rd
12.1	16th Ave S		23.1		Kent Des Moines Rd
13.2	Kent Des Moines Rd Pacific Hwy S		22.0		Pacific Hwy S
14.0	S 260th St		21.2
14.7	S 272nd St		20.5
15.2	16th Ave S		20.0			Federal Way
15.7	S 288th St		19.5
17.7	Pacific Hwy S		17.5		S Dash Point Rd
19.2	1st Ave S		16.0		SW Dash Point Rd
19.3	SW 301st St		15.9
20.5	SW 312th St		14.7
20.8	21st Ave SW		14.4
22.9	47th Ave SW		12.3
23.8	Dash Point State Park		11.4
26.2	Slayden Rd NE		9.0		Marine View Dr	Tacoma	Pierce
28.8	E 11th St Old Highway 509		6.4
29.0	McMurray Rd NE		6.2
29.5	Norpoint Way NE		5.7
31.3	Taylor Way E		3.9		Marine View Dr East West Rd
			1.7		East West Rd
34.5			0.7		E 21st St
35.1			0.1		S 21st St
35.2	S 21st St		0.0		S 21st St

Termini	WA-99 at E Marginal Way at the 1st Ave bridge in Seattle to I-705 at S 21st St in Tacoma
Length	35.2 miles
"Where does it go?"	WA-509 is as close Washington gets to a "signature" state highway (example CA-1, FL-A1A), at least in the west. It runs along the eastern shore of Puget Sound from South Seattle to Tacoma, via Burien, Des Moines and Federal Way.