Marxaladda koowaad ee Mashruuca Dhamaystirka SR 509 waxay dhistay buundada cusub ee SR 99 ee SeaTac oo ka hooseysa Light Rail (tareenka fudud) ee sare loo qaaday iyo ka sarreeya jidka SR 509. Buundada SR 99 waxay u furtay taraafikada bishii Luulyo 2022.
Marxaladan Mashruuca Dhamaystirka SR 509, ee hadda socda, waxa uu dhisaya mayl-ka koowaad ee jid-weyn oo cusub oo u dhexeeya I-5 iyo 24th Avenue South, I-5 ramps cusub, isweydaarsiyo cusub, wado dhulka I-5 hoos marto iyo buundada cusub ee South 216th Street. Sawirrada mashruuca iyo muuqaallada ayaa laga heli karaa boggayaga Flicker iyo SR 509 Khariidadda isdhexgalka ee Expressway.
Maylka koowaad ee jidka cusub ee SR 509 iyo isku xirka I-5 waxaa lagu dhisayaa qandaraaska SR 509 Stage 1b.
Waa maxay Barnaamijka Puget Sound Gateway?
Puget Sound Gateway Program waxaa ku jira Mashruuca Dhamaystirka SR 509 ee konfurta King County iyo mashruuca dhamaystirka ee SR 167 ee Degmada Pierce. Si wada jir ah, horumarkan ayaa kor u qaadi doona tartanka dhaqaale ee gobolka, heer qaran iyo heer caalamiba, isku xidhka dekedaha waaweyn ee gobolka iyo xarumaha muhiimka ah ee qeybinta ee degmooyinka King iyo Pierce.