State Route 99, SR 509 to SR 599


MP: 26.00

Location: S Seattle, at north end of Marginal Fwy

Reassurance shield after the JCT with SR 509


MP: 24.56

Location: S of Des Moines Memorial Dr Exit in Tukwila


MP: 23.76

Location: North of Tukwila Int’l Blvd exit

“SR 99” exits, but SR 99 doesn’t really exit. It actually ceases to exist at this point. In 2003, the city of Tukwila got their section of 99 removed from the state highway system. This freeway turns into SR 599 and spurs to I-5, and SR 99 ends, but abruptly resumes in the city of Seatac at SR 518


MP: 23.34

Location: JCT Tukwila Int’l Blvd, Tukwila WA

SR 99 ends right here, not exits. On SR 599 coming northbound, they’ve covered up the SR 99 signs at this exit


MP: 23.02

Location: Tukwila, WA/Marginal Fwy

SR 99 ends, not exits, and SR 599 begins


Continue on:

S through Tukwila Gap to | SR 518 to SR 509/SR 516 |, N to SR 523

S to I-5

S to SR 518