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Seattle metropolitan area map showing all of the state routes and freeways (as of September 2011). The proposed path of the new Washington 99 tunnel is also shown. Work began on the Alaskan Way Viaduct Replacement Program in early 2011. Completion of the new alignment for SR 99 was initially slated for late 2015. It finally opened in February 2019.
Waterfront Park - Seattle, Washington
Downtown Seattle and the former Alaskan Way Viaduct (SR 99) from Waterfront Park on Elliott Bay. Waterfront Park occupies 4.8 acres between Piers 57 and 59 along the west side of Alaskan Way. Photo taken 08/28/06.
2nd Ave at Seneca St - Seattle, Washington
2nd Avenue flows southbound through the Seattle central business district. Ground level traffic lights are common at area intersections. Facing southbound in this scene at Seneca Street is a traffic light acting as a pedestrian signal. Photo taken 08/29/06.
Alaskan Way at Pier 66 - Seattle, Washington
The Seattle skyline from the skywalk above Alaskan Way at Pier 66. Photo taken 08/28/06.
Pike Place Market - Seattle, Washington
Pike Place Market started on August 17, 1907 as a conventional farmers market where growers would sell their goods to the public. From humble beginnings to international recognition, Pike Place Market grew to become a tourist destination and a place to shop, play and live. Photo taken 08/28/06.
Seahawks Stadium - Seattle, Washington
CenturyLink Field rises to the south of Downtown Seattle. Home of the Seattle Seahawks and Seattle Sounders FC, the stadium opened on July 28, 2002 and regularly seats 67,000. The venue changed names from Qwest Field to CenturyLink Field in June 2011. Photo taken 08/28/06.

Various photographs of Seattle state routes, roads and streets.


Washington 599

Washington 599 continues the West Marginal Way freeway southeast from Washington 99 to Interstate 5 within the city of Tukwila. The freeway travels just 1.75 miles.

Washington 599 begin sign assembly posted after the Tukwila International Boulevard ramp departure of former Washington 99. The freeway continues east from a combination wye with former Washington 99 south and parclo interchange with South 116th Way west and Pacific Highway north through the Duwamish area of north Tukwila. Photo taken 08/30/06.
Leaving the Pacific Highway interchange, Washington 599 approaches the East Marginal Way overpass. Photo taken 08/30/06.
Curving southward along the Duwamish River, SR 99 passes by Allentown and nears the South 133rd Street parclo interchange. The freeway has a 60 mph speed limit. Photo taken 08/30/06.
South 133rd Street continues East Marginal Way beyond 42nd Street South to Interurban Avenue and a cluster of office buildings along the east side of Washington 599 . Construction visible in this photo related to the addition of an elevated rail line. Photo taken 08/30/06.
SR 599 splits into three ramps: the mainline joins I-5 south to Tacoma; the middle ramp joins the left side of I-5 south for the Exit 154A ramp to I-405 north for Renton; the HOV-ramp joins the HOV lane of I-5 south through the exchange with I-405 and SR 518 west. Photo taken 08/30/06.

1st Avenue South

1st Avenue South provides a four-lane through route from the central business district of Seattle to the stadium area and Dumamish Industrial Area to the south.

1st Avenue S north
Nearing the intersection with South Spokane Street below the West Seattle Bridge on 1st Avenue South north. Spokane Street east leads directly to ramps for both north and south Interstate 5. Photo taken 08/30/06.
Left turns from 1st Avenue South north to South Spokane Street west are restricted. Motorists bound for Harbor Island or the West Seattle Bridge to West Seattle must make a U-turn just east of 1st Avenue onto the westbound roadway of Spokane Street. Photo taken 08/30/06.
A state-named shield reaffirms the South Spokane Street eastbound connection to Interstate 5 (Exit 163). Photo taken 08/30/06.
1st Avenue South passes under the West Seattle Bridge between intersections with South Spokane Street east and west. The West Seattle Bridge is an elevated freeway linking Interstate 5 and Columbian Way from South Seattle with Youngstown and West Seattle. Photo taken 08/30/06.
1st Avenue S south
1st Avenue South southbound at King Street. Many ground level traffic signal assemblies remain in use within the Seattle central business district. Signals vary in manufacture from Crouse Hinds type D signals to Eagle brand signals. Photo taken 08/30/06.
A set of ramps connect the Alaskan Way Viaduct double deck freeway with 1st Avenue South at Dearborn Street. Elevated ramps bring motorists southbound from Washington 99 south and northbound onto the viaduct from 1st Avenue South north.
These ramps were altered to carry the SR 99 mainline onto a temporary bypass over 1st Avenue South so that the Alaskan Way Viaduct to the west could be demolished in October 2011. Photo taken 08/30/06.
The wye interchange with Washington 99 tied into 1st Avenue South adjacent to CenturyLink Field, home of the Seattle Seahawks. Photo taken 08/30/06.
Approaching the signalized intersection with Royal Brougham Way on 1st Avenue S south. Royal Brougham Way was upgraded to include an railroad overpass east of Occidental Avenue South between Safeco and CenturyLink Fields. Built as part of the SR 519 S Seattle Intermodal Access - Royal Brougham Project, the overpass opened on April 12, 2010 loops onto 3rd Avenue S east of the railroad, eliminating an grade crossing. SR 519 was relocated southward to Atlantic Street (Edgar Martinez Drive) in this process. Photo taken 08/30/06.
Interests to CenturyLink Field should use Royal Brougham Way east to access the CenturyLink Field Parking Garage. Royal Brougham Way passes under Washington 99 (Alaskan Way Viaduct) to end nearby. Photo taken 08/30/06.
1st Avenue S enters the SoDo Business District at Royal Brougham Way. Photo taken 08/30/06.
Connections to Interstates 90 and 5 from 1st Avenue S are made via Atlantic Street / Edgar Martinez Way east. SR 519 follows this alignment east from Alaskan Way to ramps for 4th Avenue S and I-90 east ahead of the exchange with Interstate 5. Photo taken 08/30/06.
Nearing SR 519 (Atlantic Street) on 1st Avenue south. Work on a new ramp to Interstate 90 east from Atlantic Street was completed in 2003. Follow up work added a direct ramp from I-90 west to Atlantic Street on April 24, 2010. Upon completion of the new off-ramp, SR 519 shifted south from Royal Brougham Way as a new truck route. Photo taken 08/30/06.
The stretch of Atlantic Street between 1st Avenue South and 4th Avenue South was renamed to honor Seattle Mariner's baseball player Edgar Martínez in October 2004. Martinez played his entire 18-year career for the M's, including every season from 1995 onwards as the full time designated hitter. His production as a designated hitter led Major League Baseball to rename the Outstanding Designated Hitter Award after him. Photo taken 08/30/06.
Holgate Street east to 4th Avenue South north provides an alternate route to Interstate 90 east from 1st Avenue South. Photo taken 08/30/06.
Holgate Street ends one block to the west and connects with Beacon Avenue South at Airport Way. Photo taken 08/30/06.
Traffic lights at 1st Avenue S and Stacy Street. Stacy Street travels just one block each direction. Photo taken 08/30/06.
State-named shields adorn this trailblazer sign for Interstate 5 and 90 along 1st Avenue South at Lander Street. Lander Street constitutes a five-lane arterial east to 4th Avenue South and Airport Way South. Photo taken 08/30/06.
Lander Street ends two blocks to the west at Colorado Avenue South. Photo taken 08/30/06.
Hanford Street provides the first street connecting 1st Avenue South with East Marginal Way south of Washington 519 (Atlantic Street). Photo taken 08/30/06.
Horton Street follows as an east-west road between East Marginal Way and 4th Avenue South. Photo taken 08/30/06.
Rising in the background is the West Seattle Bridge, an elevated freeway connecting West Seattle with Interstate 5 and Columbian Way. Photo taken 08/30/06.
South Spokane Street is the surface level component of the West Seattle Bridge, shadowing the viaduct west from Airport Way South to Riverside, Harbor Island and West Marginal Way. Spokane Street provides the connections to the freeway west and east from 1st Avenue South. Photo taken 08/30/06.
1st Avenue South leaves the West Seattle Bridge and South Spokane Street area to elevate over a large railroad yard tied into the BNSF and Union Pacific lines. Photo taken 08/30/06.

Alaskan Way

Alaskan Way lines the Elliott Bay waterfront from Broad Street south to East Marginal Way, serving a variety of tourist attractions situated on the various piers over the waters below. The four-lane boulevard doubles as Washington 519 between the WSDOT Seattle Ferry Terminal and Atlantic Street, providing a route between the ferry service and Interstate 90 near CenturyLink Field. This section covers the road north of SR-519.

Alaskan Way north
Looking west from the Pier 66 skywalk at Alaskan Way toward the Belltown section north of downtown Seattle. Photo taken 08/28/06.
Alaskan Way curves northward to become Broad Street from the bay front toward Seattle Center. Photo taken 08/28/06.
Alaskan Way south
Alaskan Way lines Elliott Bay and the various piers and wharfs along the downtown Seattle water front. Pictured here is the boulevard south at Clay Street adjacent to the Port of Seattle pier. Photo taken 08/30/06.
A BNSF engine approaches Wall Street in this Alaskan Way southbound scene. Photo taken 08/30/06.
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2 photos
A pedestrian overpass links Pier 66 and the Bell Street Cruise Terminal with Bell Street at Elliott Avenue. Photo taken 08/30/06. Second photo taken 08/28/06.
Continuing south from Pier 66 toward the Seattle Aquarium along Alaskan Way. The parallel BNSF Railroad diverges from the boulevard and enters a tunnel through to South Washington Street by 4th Avenue S. Photo taken 08/30/06.
An illuminated crosswalk sign and signals hang above the walkway connecting Alaskan Way with Lenora Street. Photo taken 08/30/06.
Alaskan Way and the Alaskan Way Viaduct come together west of Pike Place Market. A traffic light facilitates movements to a parking area sandwiched between the two roadways. Photo taken 08/30/06.
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2 photos
Southbound Alaskan Way at Madison Street. A stop on the George Benson Waterfront Streetcar Line resides between the boulevard and Alaskan Way Viaduct. Photos taken 08/30/06.
Continuing south along side the Waterfront Streetcar line and Alaskan Way Viaduct (Washington 99) on Alaskan Way south after Madison Street. Photo taken 08/30/06.
Marion Street intersects Alaskan Way at Pier 52; the Ferry Terminal Walkway passes above. The Seattle Ferry Terminal at Colman Dock represents the north end of Washington 519. Ferries carry vehicles and passengers to Bainbrige Island and Bremerton from here. Photo taken 08/30/06.
Columbia Street ties into Alaskan Way opposite the Ferry Terminal. Washington 519 commences the 1.14-mile drive to Interstate 90 beyond the traffic light. Photo taken 08/30/06.

Broad Street

Broad Street travels between Alaskan Way at Belltown near Elliott Bay northeast to Seattle Center and the Mercer Street connection with Interstate 5. The road includes an expressway section between 5th Avenue North and 9th Avenue North constructed in the 1950s. This is about to change as the Mercer Corridor Project underway will revamp the South Lake Union street grid, focusing on Mercer Street as a six-lane boulevard toward Seattle Center from Interstate 5. Planned work includes the removal of the Broad Street depressed expressway from the Seattle Center area to Mercer Street at 8th Avenue North.

Broad Street south
Leaving the intersection with 9th Avenue North and Roy Street west along a stretch of Broad Street slated to close. The Mercer Corridor Project begun in 2010 will eventually see the removal of the four-lane Broad Street expressway between 9th Avenue North and 5th Avenue North. The removal is hoped to reconnect the street grid above. Photo taken 08/30/06.
Mercer Street meets Dexter Avenue North at an elevated intersection above Broad Street west in this scene. Photo taken 08/30/06.
Passing under Aurora Avenue North (Washington 99) along Broad Street south with the Space Needle rising from Seattle Center in the background. The proposed bored tunnel of Washington 99 brings the state route out just south of the grade separation with Broad Street. Aurora Avenue North will split with Washington 99 as an at-grade route to Denny Way. Photo taken 08/30/06.
Emerging from the Aurora Avenue North subway on Broad Street west. Photo taken 08/30/06.
Broad Street returns to grade at Harrison Street and Taylor Avenue North. Photo taken 08/30/06.
Broad Street reaches 5th Avenue, the western extent of roadway to be removed under the Mercer Corridor Project. Passing above the intersection is the Seattle Center Monorail. The elevated rail line connects the fairgrounds and park area with Westlake Center Mall. Photo taken 08/30/06.
The Space Needle as seen from Broad Street and 5th Avenue North. Photo taken 08/30/06.
Broad Street passes by the Space Needle and Seattle Center at 4th Avenue North. Photo taken 08/30/06.
Denny Way lines the south side of Seattle Center by the Pacific Science Center. Photo taken 08/30/06.
Elliott Bay comes into view as Broad Street enters the Belltown section of Seattle north of downtown. Photo taken 08/30/06.
One block further south on Broad Street south at 1st Avenue. Photo taken 08/30/06.
Broad Street reaches Western Avenue and Olympic Sculpture Park (shown here under construction). Photo taken 08/30/06.
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2 photos
Descending to Elliott Avenue, one block from the turn onto Alaskan Way at Pier 70. Photos taken 08/30/06.

Other Seattle Roads

2nd Avenue south
Spring Street provides a direct ramp onto Interstate 5 south at 6th Avenue. A small guide sign directs motorists onto Spring Street from 2nd Avenue south in this scene. Photo taken 08/29/06.
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2 photos
Older one-piece Eagle and Crouse Hinds type D signals positioned at ground level govern the traffic flow at many downtown area intersections, such as the one at 2nd Avenue and Spring Street here. Photos taken 08/29/06.
2nd Avenue south at Marion Street. Photo taken 08/29/06.
Three blocks south of Spring Street is Columbia Street, which connects to Washington 99 south to the Duwamish Industrial Area. Interstate 5 bound travelers should continue another block to Cherry Street. Photo taken 08/29/06.
Another Interstate 5 guide sign posted on 2nd Avenue points toward Cherry Street north for its connections with 6th and 7th Avenues, frontage roads of Interstate 5 with respective on-ramps. Photo taken 08/29/06.
Interstate 5 southbound trailblazer posted ahead of the 2nd Avenue south intersection with James Street. James Street provides access to the freeway via the 6th Avenue on-ramp. The shield pictured here may well have been removed or replaced by 2010. Photo taken 08/28/06.
2nd Avenue
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2 photos
While 2nd Street flows southbound, traffic lights also face southward and act as pedestrian signals. Posted at Spring Street is an older one-piece Eagle Signal. Photos taken 08/29/06.
Walking one block northward, a Crouse Hinds type D signal faces southward at Seneca Street. Photo taken 08/29/06.
3rd Avenue
3rd Avenue carries two way traffic through downtown Seattle. Pictured here is the intersection with Madison Street. Photo taken 08/28/06.
Southward view of 3rd Street at Cherry Street within the central business district of Seattle. Photo taken 08/28/06.
4th Avenue S
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3 photos
3 photos
4th Avenue South leaves the ramps for Interstate 90 and CenturyLink Field and meets the north end of Airport Way South. Airport Way leads southward to King County International Airport / Boeing Field. Photo taken 08/30/06. Second photo taken 08/28/06. Third photo taken 08/30/06.
Columbia Center and Seattle Municipal Tower and other skyscrapers dominate the view of 4th Avenue South north at the parking garage exit of 505 Union Station. King Street Station lies to the left. Photo taken 08/30/06.
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2 photos
2nd Avenue South Extended splits from 4th Avenue South. Photos taken 08/30/06.
King Street Station provides transit options for area commuters and also long distance travelers via Amtrak. The historic station opened in 1906 and was added to the National Register of Historic Places in 1973. Photo taken 08/30/06.
4th Avenue angles northwest from Yesler Way and reaches Cherry Street in three blocks. Cheery Street provides connections to both south and north Interstate 5 via 6th and 7th Avenues (frontage streets of the freeway). Photo taken 08/28/06.
9th Avenue N
Heading south along 9th Avenue North toward the intersection with Broad Street and Roy Street west. Construction associated with the Mercer Corridor Project will eliminate Broad Street between 9th Avenue North and the new Mercer Street parkway. Green space will replace the current paved area between Roy Street to 8th Avenue South. Photo taken 08/30/06.
Roy Street will carry two-way traffic west from 9th Avenue North and tie directly into Valley Street to the east. Valley Street will be downgraded from a multi-lane arterial into a two-lane local street. Photo taken 08/30/06.
Mercer Street east
A historical look at Mercer Street eastbound between 8th and 9th Avenues North. What was previously a congested one-way street leading east to Interstate 5 received $30 million in ARRA funds on February 16, 2010 to rebuild the corridor as gateway to the South Lake Union neighborhood of Seattle. Photo taken 08/30/06.
Eastbound Mercer Street at 9th Avenue North. Buildings along the north side of Mercer Street were demolished to make way for a new six-lane parkway. Dubbed the Mercer Corridor Project, the parkway project is part of an overall plan to link Seattle Center with Interstate 5 and Washington 99 with a two-way Mercer Street. Valley Street, the original westbound gateway to Seattle Center, will be downgraded to a local street with an improved Mercer corridor. Photo taken 08/30/06.
Mercer Street east at Westlake Avenue. The Mercer Street east and Valley Street westbound couplet from Interstate 5 to Broad Street was constructed in the 1950s. Photo taken 08/30/06.
Various Downtown Streets
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3 photos
Famous in the road enthusiast community, the hand painted U.S. 99 sign posted at the Columbia Street southbound on-ramp to the Alaskan Way Viaduct. U.S. 99 was vastly replaced by Interstate 5 in Washington and officially decommissioned from the state in 1964. Washington 99 follows a portion of the original alignment between Tukwila and Everett. Photo taken 08/29/06. Second photo taken 08/28/06. Third photo taken 08/29/06.
Jackson Street westbound at 3rd Avenue North opposite King Street Station. Photo taken 08/30/06.
2nd Avenue South travels one block from Jackson Street to the CenturyLink Field parking area. Jackson Street continues three blocks to an end at Washington 519 (Alaskan Way) beyond the Alaskan Way Viaduct. Photo taken 08/30/06.
Marion Street rises from 2nd Avenue in this scene. Photo taken 08/29/06.
Pike Place south becomes Pike Street east at Pike Place Market. The street carries vehicular traffic at the market but also doubles more or less as a pedestrian mall during busy periods. Photo taken 08/28/06.
Seneca Street provides a direct route from Washington 99 north and interstate 5 north into downtown Seattle. Pictured here is intersection with 2nd Avenue. Photo taken 08/29/06.
Southward scene showing the Alaskan Way Viaduct, Waterfront Streetcar Line, and Alaskan Way (Washington 519) at Yesler Way. Photo taken 08/28/06.
Yesler Way straddles the street grid shift between Interstate 5 and Washington 519 (Alaskan Way), ending opposite the WSDOT Seattle Ferry Terminal. Photo taken 08/28/06.
Northgate Way west
Approaching the three-quarter cloverleaf interchange between Northgate Way west and Interstate 5 adjacent to Northgate Mall. Photo taken 08/29/06.
1st Avenue NE lines the northbound side of Interstate 5 and yields the northbound on-ramp to Shoreline and Everett from NE Northgate Way. Photo taken 08/29/06.
A loop ramp shuttles drivers from the Northgate area of Seattle onto Interstate 5 south to the city center. Photo taken 08/29/06.
Ramps of Interstate 5 south at Exit 173 meet at North Northgate Way and Corliss Avenue North. The Express roadway system of Interstate 5 commences at Northgate and leads south to downtown. Photo taken 08/29/06.
Northgate Way angles southwest and meets Washington 99 (Aurora Avenue) at the North Park section of Seattle. Washington 99 follows Aurora Avenue south to Green Lake and north to Richmond Highlands. Photo taken 08/29/06.



Photo Credits:

08/28/06, 08/29/06, 08/30/06 by AARoads

Page Updated 09-27-2011.