Washington State Route 518
From Wikipedia, the free encyclopedia
State Route 518 Auxiliary route of I-5 |
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Defined by RCW 47.17.715, maintained by WSDOT | |||||||||||||
Length: | 3.42 mi[1] (5.50 km) | ||||||||||||
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Formed: | 1964 | ||||||||||||
West end: | SR 509 in Burien | ||||||||||||
Major junctions: |
SR 99 in Seatac | ||||||||||||
East end: | I-5/I-405 in Tukwila | ||||||||||||
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State Route 518 is a state highway in the U.S. state of Washington. It extends just under 3.5 miles (5.6 km) from Burien in the west to Tukwila in the east.
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[edit] Route description
Originating at State Route 509, SR 518 runs east past Seattle-Tacoma International Airport, just east of which is an interchange with State Route 99 (International Boulevard). It intersects with Interstate 5 just northwest of Westfield Southcenter and continues eastward as Interstate 405. It is a freeway its entire length.
A significant portion of Route 518's traffic is between the airport and the interstate.
The interchange between the SR 509 and SR 518 freeways currently is not a freeway to freeway junction. Traffic often backs up on the existing ramp from southbound SR 509 to get to SR 518. WSDOT has planned a project to improve the interchange by adding a flyover ramp to connect southbound SR 509 traffic to SR 518.
[edit] Exit list
The entire route is in King County.
Location | Mile[1] | Destinations | Notes |
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Burien | 0.00 | Southwest 148th Street, 1st Avenue South – Burien | At-grade intersection |
0.00 | SR 509 – Des Moines, Seattle | ||
0.60 | Des Moines Memorial Drive | Westbound exit and eastbound entrance | |
Seatac | |||
1.62 | To SR 99 / South 154th Street | Eastbound exit and westbound entrance | |
1.87 | Sea-Tac Airport | ||
2.10 | SR 99 | Westbound exit and eastbound entrance | |
Tukwila | |||
3.12 | 51st Avenue South, Southcenter Parkway | Eastbound exit and westbound entrance | |
3.42 | I-5 – Tacoma, Seattle | Eastbound exit and westbound entrance | |
3.42 | I-405 north – Renton, Bellevue | Eastbound exit and westbound entrance |
[edit] References
[edit] External links
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SR 500 - SR 501 - SR 502 - SR 503 (Spur) - SR 504 (Spur) - SR 505 - SR 506 - SR 507 - SR 508 - SR 509 - SR 510 - SR 512 - SR 513 - SR 515 - SR 516 - SR 518 - SR 519 - SR 520 - SR 522 - SR 523 - SR 524 (Spur: Edmonds, Lynnwood) - SR 525 (Spur) - SR 526 - SR 527 - SR 528 - SR 529 (Spur) - SR 530 - SR 531 - SR 532 - SR 534 - SR 536 - SR 538 - SR 539 - SR 542 - SR 543 - SR 544 - SR 546 - SR 547 - SR 548 - SR 599 | |
Former or proposed state routes: SR 514 - SR 537 - SR 540 |