State Route 518

SR 518 begins at the parclo interchange joining S 148th Street parclo with the freeway along SR 509 near Downtown Burien. SR 509 joins Burien with Des Moines and Normandy Park to the south and Seattle to the north.

08/30/06

A loop ramp connects to SR 509 north for Boulevard Park and the Duwamish industrial area of Seattle. SR 518 commences along a freeway east to Seattle-Tacoma International Airport (SEA) and I-5/405 at Tukwila.

08/30/06

The first eastbound shield for SR 518 stands between SR 509 and the city of SeaTac.

08/29/06

One half mile west of the half diamond interchange with S 154th Street on SR 518 east. 154th Street, the original alignment of SR 518, provides access to Pacific Highway / Tukwila International Boulevard (former SR 99) at Riverton Heights.

08/29/06

A second runway lighting trestle passes high above SR 518 near the half diamond interchange with Des Moines Way.

08/29/06

S 154th Street straddles the northern perimeter of Seattle-Tacoma International Airport (SEA) between Five Corners in Burien and 24th Avenue S at SR 518. A directional interchange with North Entry and North Exit Drive, the freeway between the Airport Terminal and SR 518, follows.

08/29/06

North Entry Drive heads south to the Seattle-Tacoma International Airport (SEA) with an exit to S 170th Street between SR 518 and the terminal. The entire freeway was redesigned to accommodate an elevated transit line.

08/29/06

SR 518 enters the city of Tukwila. and lowers to meet 51st Avenue S and I-5/ 405.

08/29/06

A half diamond interchange joins SR 518 with 51st Avenue S ahead Interstate 5. 51st Avenue S transitions to Klickitat Drive en route to Southcenter Parkway at Southcenter Mall, east of I-5.

08/29/06

SR 518 becomes Interstate 405 north within the cloverstack interchange at I-5. A left exit connects eastbound with I-5 north to Seattle.

08/29/06

The southbound ramp to Interstate 5 departs for Kent, Federal Way,and Tacoma.

08/29/06

I-405 south becomes SR 518 west at the cloverstack interchange with Interstate 5. A loop ramp joins I-5 south to Federal Way, Tacoma and Portland.

08/29/06

SR 518 ascends from Tukwila to SeaTac and Seattle-Tacoma International Airport (SEA). A distributor roadway leaves in a half mile for Pacific Highway / Tukwila International Boulevard (former SR 99) and North Entry Drive to the airport.

08/30/06

SR 518 provides the main access point to Seattle-Tacoma International Airport (SEA) from Interstate 5 and the Seattle freeway network. Two lanes depart the westbound freeway for North Entry Drive, a short freeway leading to S 170th Street and the terminal.

08/30/06

A separate ramp departs the Airport exit first for S 154th Street and Pacific Highway. Pacific Highway was a part of SR 99 until 2004. S 154th Street represents the original alignment of SR 518.

08/29/06

Westbound at the ramp separation for Pacific Highway, S 154th Street, and North Entry Drive south.

08/30/06

Continuing west, SR 518 advances to a half diamond interchange wigh Des Moines Memorial Drive below two runway lighting trestles.

08/30/06

Des Moines Memorial Drive winds north from SR 518 to Boulevard Park and south to Five Points in the city of Burien.

08/30/06

SR 518 west ends in one half mile at S 148th Street near the Burien city center.

08/30/06

Departing the freeway next is the northbound ramp to SR 509. SR 509 travels north from Burien to the Duwamish industrial area of Seattle.

08/30/06

A parclo interchange connects the SR 518 and SR 509 freeways. Traffic signals operate at both ends of the exchange.

08/30/06

SR 509 is a freeway from Des Moines to SR 99 (W Marginal Way) near South Park in Seattle. SR 509 and SR 99 provide a direct route to the Seattle City Center from Burien.

08/30/06

Heading south, SR 509 skirts the west side of Seattle-Tacoma International Airport (SEA) to Des Moines Memorial Drive and S 188th Street. A planned extension of the freeway realigns the route on a southeasterly course to Interstate 5 and SR 516 in Kent.

08/30/06

S 148th Street stems west from SR 509 and SR 518 to the commercialized intersection with 1st Avenue S. 1st Avenue S is old SR 509.

08/30/06

1st Avenue S travels heads to Beverly Park and Sunnydale from near the Burien city center. 148th Street continues west to 16th Avenue SW near the Seahurst neighborhood of the city.

08/30/06