New SR 509 Expressway to Sea-Tac Airport opens in October—but it’ll cost you

Sound drivers are finally going to get a direct route into the Seattle International Airport from Interstate 5 (I-5), but you are going to have to pay a toll to use it.

People from Tacoma and Olympia will no longer have to drive all the way up to Southcenter, then head into the airport via State Route 518. A direct State Route 509 (SR 509) Expressway is set to open in October, connecting I-5 to Burien. That’s what all the construction near I-5 and the Kent Des-Moines Road has been about the last few years.

But this direct route will be tolled. The Washington State Transportation Commission (WSTC) is out with its toll recommendations for the corridor…

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