Interstate 5 in Washington

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Interstate 5 marker

Interstate 5
Interstate 5 is highlighted in red
Route information
Defined by RCW 47.17.020
Maintained by WSDOT
Length 276.62 mi[2][3] (445.18 km)
Existed August 7, 1947 by FHWA
1956 – present
Lewis and Clark Highway (from Vancouver to SR-4 near Longview)[1]
Major junctions
South end I-5 at the Oregon state line
  SR 14 in Vancouver
I‑205 in Salmon Creek
US 12 near Centralia
US 101 in Tumwater
I‑705 in Tacoma
I‑90 in Seattle
US 2 in Everett
SR 20 in Burlington
North end Hwy 99 at Canada–United States border in Blaine
Counties Clark, Cowlitz, Lewis, Thurston, Pierce, King, Snohomish, Skagit, Whatcom
Highway system
SR 4 SR 6

Interstate 5 in Washington (I-5) is a 276.62-mile (445.18 km) highway in the U.S. state of Washington that extends from its border with Oregon to its border with Canada. Serving the cities of Vancouver, Kelso, Chehalis, Centralia, Olympia, Tacoma, Seattle, Everett, Mount Vernon, and Bellingham, it is the main route between Portland, Oregon, and Vancouver, British Columbia.[4][5][6]

It is the only interstate to traverse the whole north–south length of Washington, but the undivided highways U.S. Route 97 and U.S. Route 395 do also.[7][8] I-5 is also the only north–south primary interstate highway in Washington.[9][10] The road is the busiest in the state; an estimated 240,000 motorists use the road daily.[11] The second busiest is I-405 at 201,000.[12]

Route description

Vancouver to Tumwater

The Interstate Bridge carries I-5 over the Columbia River from Portland to Vancouver.

I-5 enters Washington at the Interstate Bridge over the Columbia River between Portland and Vancouver. It initially heads north through Vancouver and intersects SR 14, the first segment of SR 501, and SR 500 until the interchange with I-205 in Salmon Creek, where the freeway begins a turn to the northeast. I-5 closely follows the alignment of old U.S. Route 99, and in some locations the US 99 alignment has become I-5. The interstate passes the Vancouver branch of Washington State University. Southeast of Ridgefield, the highway intersects SR 502 and the second segment of SR 501 before continuing north along the Columbia River to Woodland.[13][14][15][16][16][17]

In Woodland, I-5 intersects SR 503 and starts to curve northwest towards Longview and Kelso. At Longview Junction, east of Longview, I-5 intersects SR 432 and continues north to Kelso. Here it intersects SR 4, formerly US 830, and SR 431 before curving northeast towards Castle Rock. In Castle Rock, the freeway intersects SR 411, and SR 504, which connects I-5 with Mount St. Helens, and Spirit Lake. From Castle Rock, the highway goes north to Napavine and intersects SR 506 and SR 505 before becoming concurrent with US 12 and continuing north to intersect SR 508. After the intersection, I-5 and US 12 go into Chehalis, where the highway intersects SR 6.[16][18][19]

After leaving Chehalis, I-5/US 12 enters Centralia and intersects SR 507 before splitting from US 12 north of the city. As the freeway continues north towards Olympia, it intersects SR 121, which connects the highway with Millersylvania State Park and loops back to I-5. As the freeway enters Tumwater, it passes the Olympia Airport before intersecting the northern terminus of US 101.[5][16][20][21][22][23][24]

Tumwater to Tukwila

Interstate 5 through Lacey, with Mount Rainier in the background

As I-5 leaves the US 101 interchange, the highway curves east and forms the southern boundary of Olympia. The highway also goes across Capitol Lake and intersects Capitol Way, which connects the freeway to the Washington State Capitol. After leaving Olympia, I-5 goes in a northeastern direction into Lacey, where it intersects SR 510. After passing Nisqually, the highway enters Du Pont, where it enters Fort Lewis. After passing Camp Murray and American Lake, the freeway comes to the proposed western terminus of SR 704, passes McChord Air Force Base, and enters Lakewood.[16]

In Lakewood, I-5 intersects SR 512 and continues into Tacoma, where the freeway passes the Tacoma Mall and intersects major highways, such as SR 16, I-705, SR 7, and SR 167 before going east through the Puyallup Indian Reservation at Fife.[25] In Fife, the highway intersects SR 99, a small portion of US 99 through the Puget Sound region, and then enters Federal Way. Here the freeway intersects the western terminus of SR 18, which has been proposed to be renumbered to I-605 after being upgraded to Interstate standards.

After also intersecting SR 516, the highway passes Angle Lake, the Seattle-Tacoma International Airport, and Westfield Southcenter before going into an interchange with I-405 and SR 518. SR 518 connects I-5 to the Seattle-Tacoma International Airport, and I-405 bypasses I-5 through Seattle.[5][16][26][27][28][29][30][31]

Tukwila to Shoreline

The interchange between Interstate 5 and Interstate 90 in south Seattle

From the I-405/SR 518 interchange, I-5 goes north and intersects SR 599, which connects I-5 to SR 99, and SR 900. From the interchanges, the highway passes Boeing Field and the West Seattle Bridge before having a large interchange with I-90. After the interchange, I-5 intersects SR 519 and enters Seattle.

In downtown Seattle, I-5 becomes a tunnel passing under the Washington State Convention and Trade Center and Freeway Park. Once I-5 begins to rise from the tunnel, it passes over the I-5 Colonnade and then intersects the western terminus of SR 520, which goes to Bellevue via the Evergreen Point Floating Bridge. From the interchange with SR 520, the freeway goes north along the Ship Canal Bridge over the Lake Washington Ship Canal and passes the University of Washington before entering Northgate.

Within the neighborhood of Northgate, the highway intersects SR 522 and merges with the I-5 express lanes at the Northgate Mall. From the Northgate Mall, I-5 goes north into Shoreline and intersects SR 523 and passes a King County Metro Transit base before intersecting SR 104 and entering Mountlake Terrace.[5][31][32][33][34]

Seattle express lanes

The express lanes on the Ship Canal Bridge

Interstate 5 has 7.14 miles (11.49 km)[3] of reversible express lanes within Seattle. The express lanes begin after the Yesler Way bridge and tunnel under the northbound lanes of I-5 and intersect Cherry Street/Columbia Street. From the interchange, the express lanes intersect Mercer Street and then cross the Ship Canal Bridge. The express lanes are on the lower deck below the lanes of I-5. Near the end of the bridge is a reversible ramp that accesses Northeast 42nd Street. After the bridge ends, the express lanes continue northbound and intersect with Ravenna Boulevard, Lake City Way, and Northeast 103rd Street/1st Avenue Northeast. Finally, the lanes merge with I-5 in Northgate just north of the Northgate Mall.[5][31][33][35][36]

The express lanes are open to all traffic; however, some ramps are designated for HOV vehicles only to assist with traffic flow and mitigate constrained space. These ramps include Cherry Street/Columbia Street/5th Avenue, Ravenna Boulevard, and Pike Street/Downtown Seattle Transit Tunnel. The express lanes carry northbound traffic from 12pm to 11pm Monday through Friday and 2pm to 11pm Saturday and Sunday. They carry southbound traffic from 5 am to 11am Monday through Friday and from 7am to 1pm Saturday and Sunday.[37][38]

Shoreline to Everett

Interstate 5 passing by the South Everett Freeway Station, under construction near Silver Lake

After leaving Shoreline and intersecting SR 104, I-5 enters Snohomish County and Mountlake Terrace. From the interchange, the highway passes Lake Ballinger and intersects SR 524 before reaching the Alderwood Mall. Next to the mall, the freeway intersects SR 525 and I-405. From the interchange, I-5 passes Martha Lake, intersects SR 96, and passes Silver Lake before reaching the interchange between I-5, SR 99, SR 526, and SR 527 near the Everett Mall. SR 99 is part of Old US 99, SR 526 connects I-5 to the Boeing Everett Factory, and SR 527 connects Bothell with Everett.

After leaving the interchange, I-5 intersects 41st Street at a single-point urban interchange, the only one in the area. From the interchange, the freeway intersects SR 529 and then SR 529 Spur and US 2.[5][16][34][39][40]

Everett to Mount Vernon

I-5 southbound viewed from the newly upgraded SR 531 in Marysville

After leaving downtown Everett and the US 2/SR 529 Spur interchange, I-5 goes north across the Snohomish River and curves northeast to an interchange with SR 529. North of the interchange, the freeway enters Marysville and intersects SR 528. The highway passes the Tulalip Resort Casino at Quil Ceda, commonly known as the Quil Ceda Creek Casino, the Marysville Water Tower, Quil Ceda Village, the Tulalip Resort Casino and Tulalip Hotel, and Lakewood Crossing before intersecting SR 531 and leaving Marysville. From the Marysville City limits, I-5 passes Smokey Point and goes northwest to Island Crossing, where the highway intersects SR 530, which connects the freeway to Arlington, Darrington, and Rockport.

After the interchange, I-5 travels over the Stillaguamish River and passes Silvana before intersecting SR 532, which goes west to Stanwood and Camano Island. As the highway curves northwest, the freeway enters Skagit County. Once in Skagit County, I-5 goes into Conway, where it intersects SR 534, which goes east to serve Big Lake. From Conway, the freeway goes north into Mount Vernon, where I-5 intersects SR 536, which serves as a shortcut to Anacortes, via SR 20 and SR 20 Spur.[5][16][41][42] [43]

Mount Vernon to Blaine

The Peace Arch is a monument on the Canada–United States border, where I-5 becomes Hwy 99 and enters British Columbia.

After leaving downtown Mount Vernon, the freeway intersects SR 538, which serves the Skagit Valley College and Clear Lake (via SR 9). After the interchange, the highway crosses the Skagit River, where part of the bridge collapsed on May 23, 2013, leaving a gap in the highway until a temporary bailey bridge span was built and opened on June 19. In September it was replaced with a more permanent span. On the other side of the river it continues north through Burlington. After passing the Cascade Mall, I-5 intersects SR 20, which goes west to Anacortes (via SR 20 Spur), Deception Pass, Whidbey Island, and Discovery Bay and SR 20 goes east to Okanogan, Omak, and Newport.[44] The freeway also intersects SR 11, which serves Edison, Bow, Samish Island, and Bellingham.

From the interchange, I-5 travels north and curved west on the shoreline of Lake Samish north of Alger, which is also the point where the freeway enters Whatcom County. After traveling west, I-5 curves north again and intersects SR 11 before entering Bellingham. In Bellingham, the highway intersects SR 542, which goes to Mount Baker, and SR 539, which goes to Lynden and British Columbia. The freeway passes the Bellis Fair Mall, Bellingham International Airport, and Ferndale before intersecting SR 548, which serves Blaine. Once in Blaine, I-5 intersects SR 543, which leads to the truck and freight border crossing. The freeway then intersects SR 548 again and then crosses the Canadian border into British Columbia as Highway 99 at the Peace Arch.[5][16][31][42][45][46][47]


WA-PSH1.svg US 99 (1961).svg

As part of the state's first connected state highway system, the Washington State Legislature designated the Pacific Highway between Vancouver and Blaine in 1913.[48][49] The State Highway Board selected a route that would connect the main cities of Western Washington, which were Vancouver, Olympia, Tacoma, Seattle, Everett, and Bellingham.[50][51] In 1923, by which time the entire road had been improved,[52] the highway became State Road 1 (Primary State Highway 1 after 1937), but retained its name.[53] By that time, most of the route of Interstate 5 became US 99, which was established in 1926.[54][55][56]

Later in 1956, President Dwight D. Eisenhower signed the Federal Aid Highway Act of 1956 which started the construction of Interstate Highways.[57][58] In 1968, US 99 was removed from the system entirely, a year before the last portion of Interstate 5 opened on November 14, 1969.[59] Legally, the Washington section of I-5 is defined at Washington Revised Code § 47.17.020.[60] Several projects are currently ongoing and have been completed in the recent years on I-5.[61]

Kelso to Centralia

Flooding near Chehalis closed I-5 for four days in December 2007.

During the past two decades, parts of the interstate have been periodically inundated by floodwaters as a result of area storms. Floods in November 1990, February 1996, December 2007, and January 2009[62] each caused temporary closures of I-5 between the Kelso-Longview and Chehalis-Centralia areas. The causes of this problem, as noted by the United States Army Corps of Engineers, are attributable to "decades of clear-cut logging, modifications of waterways, and destruction of natural flood control features within the Chehalis River basin."[63]

The December 3, 2007, flood closed a 20-mile (32 km) section of the interstate for four days. The Washington State Department of Transportation recommended a 440-mile (710 km) detour between Portland and Seattle, by way of I-90, I-82, and I-84, adding 270 miles (430 km) to the 170-mile (270 km) trip.[64][65][66]

The January 7, 2009 flood closed a 20-mile (32 km) section of the interstate for several days. The Washington State Department of Transportation was unable to offer a detour since all three main east/west passes were also closed due to severe mudslide and avalanche danger.

On December 18, 2017, an Amtrak train derailed onto the southbound lanes of I-5, causing it to be blocked for hours.[67]


Interstate 5 cutting through the Seattle skyline

South of the Ship Canal Bridge Interstate 5 separates the Eastlake and Cascade neighborhoods from the Capitol Hill neighborhood, and separates Downtown Seattle from the Capitol Hill and First Hill neighborhoods. Its construction necessitated the demolition of significantly developed areas and cut off walking commutes to downtown for many First Hill residents, who "were by far the most vociferous critics of the proposed route,"[68] but far from the only ones. Architect Paul Thiry said in the early 1970s, "It was with the Freeway, cutting through the very heart of the city, that Seattle began taking one of its wrong turns and started to lose its identity as a city." He proposed a lid extending from Columbia Street north to Olive Way, roughly the entire length of downtown.[69]

Among the buildings torn down in the Downtown-First Hill area to build the freeway was the Hotel Kalmar at Sixth Avenue and James Street (built 1881 as the Western Hotel, demolished 1962), the last of Seattle's pioneer-era hotels, predating the Great Seattle Fire,[70][71] and Seattle's then-oldest public building, the Seventh Avenue Fire Hall (built 1890, demolished c. 1962).[68]

In the years since the freeway's construction, Seattle has made several efforts to stitch back together pedestrian routes disrupted by the freeway, achieving part of Thiry's proposed "lid". The most visible of these efforts are Freeway Park (opened 1976), built as a lid over the freeway and connecting Downtown to First Hill, and the Washington State Convention and Trade Center (built 1982-1988) adjacent to Freeway Park, also bridging the freeway.[68] The 7.5-acre (30,000 m2) I-5 Colonnade mountain bike park (opened 2007) uses the freeway as a roof and reconnects Eastlake to Capitol Hill.[72]

The Interstate 5 separates Capitol Hill (right) from South Lake Union (center) and Downtown Seattle (left).

On Interstate 5, the only planned improvement on the express lanes is a direct connection to the future SR 520 HOV lanes, to be constructed as part of the Evergreen Point Floating Bridge replacement project.

Signage for Seattle and Vancouver in Northwestern Washington.

Seattle to Everett

The 19.7 miles (31.7 km) section between Seattle and Everett was opened on February 3, 1965 by Miss Sno-King Rose Clare Menalo of Meadowdale High School.[73][74]

Everett to Mount Vernon

The portion of I-5 from US 2 / SR 529 Spur in Everett to SR 528 in Marysville opened at a ribbon-cutting ceremony on May 14, 1969 by Devvie Herivel, Miss Everett, and Katherine Smith, Miss Marysville. This was the last portion of Interstate 5 from California to Canada that was opened, free of traffic lights and draw bridges.[75] The stretch of I-5 from Marysville to Mount Vernon was already opened as a 4-lane divided highway without overpasses.[76]

On May 23, 2013, the northbound span of the I-5 Skagit River bridge between Mt. Vernon and Burlington collapsed.[77]

Exit list

County Location mi[3] km Exit Destinations Notes
Columbia River 0.00 0.00 Interstate Bridge
I-5 continues south into Oregon towards Portland
Clark Vancouver 0.41 0.66 1A SR 14 east – Camas
0.45 0.72 1B 6th Street – Vancouver City Center Northbound exit and southbound entrance
1.05 1.69 1C SR 501 (Mill Plain Boulevard) – Vancouver City Center, Port of Vancouver
1.58 2.54 1D 4th Plain Boulevard
2.35 3.78 2 SR 500 east / 39th Street
3.07 4.94 3 Northeast Highway 99, Main Street
4.36 7.02 4 Northeast 78th Street
5.39 8.67 5 Northeast 99th Street
7.24 11.65 7A Northeast 134th Street - Washington State University Vancouver Northbound exit and southbound entrance; southbound exit is via I-205
7B Northeast 139th Street No southbound exit
7.48 12.04 7 I‑205 south to I‑84 / SR 14 / Northeast 134th Street – Salem, Washington State University Vancouver Southbound exit and northbound entrance
9.51 15.30 9 Northeast 179th Street – Clark County Fairgrounds
11.20 18.02 11 SR 502 east (Northeast 219th Street) – Battle Ground
Ridgefield 14.21 22.87 14 SR 501 south (Pioneer Street) – Ridgefield
16.80 27.04 16 NW La Center Road - La Center, Cowlitz Reservation
Cowlitz Woodland 21.08 33.92 21 SR 503 east – Woodland, Cougar
22.72 36.56 22 Dike Access Road
27.70 44.58 27 Todd Road – Port of Kalama
Kalama 29.84–
30 Kalama
32.28 51.95 32 Kalama River Road
Kelso 36.97 59.50 36A Kelso Drive No southbound exit
36.97 59.50 36 Talley Way - Kelso Industrial Area Signed as exits 36B northbound and 36A southbound
36.97 59.50 36 SR 432 west to SR 4 / US 30 – Longview, Long Beach, Kelso
39.88 64.18 39 SR 4 west (Allen Street) – Kelso
40.77 65.61 40 To SR 4 / North Kelso Avenue – Kelso, Longview, Long Beach
42.73 68.77 42 Lexington Bridge Road
46.20 74.35 46 Headquarters Road, Pleasant Hill Road
Castle Rock 48.04 77.31 48 I‑5 Bus. north (Huntington Avenue) – Castle Rock
49.91 80.32 49 SR 411 south (I-5 Bus. south) / SR 504 east – Castle Rock, Toutle
52.72 84.84 52 Barnes Drive, Toutle Park Road
Lewis 57.41 92.39 57 Jackson Highway, Barnes Drive
59.27 95.39 59 SR 506 – Vader, Ryderwood
60.98 98.14 60 SR 506 west (Toledo Vader Road)
63.49 102.18 63 SR 505 – Winlock, Toledo
68.48 110.21 68 US 12 east – Yakima, Morton South end of US 12 overlap
Napavine 71.12 114.46 71 SR 508 east – Onalaska, Napavine
72.85 117.24 72 Rush Road
Chehalis 74 Labree Road
76.62 123.31 76 13th Street
78.04 125.59 77 SR 6 west – Pe Ell, Raymond
79.15 127.38 79 Chamber Way
Centralia 81.74 131.55 81 SR 507 north (Mellen Street) - Centralia Southbound exit is via exit 82
82.80 133.25 82 Harrison Avenue, Factory Outlet Way
Thurston 88.40 142.27 88 US 12 west – Aberdeen, Tenino North end of US 12 overlap
95.28 153.34 95 SR 121 north – Littlerock, Maytown
99.35 159.89 99 SR 121 south (93rd Avenue)
Tumwater 101.37 163.14 101 Tumwater Boulevard – Olympia Regional Airport
102.86 165.54 102 Trosper Road – Black Lake
104.05 167.45 103 Deschutes Way, 2nd Avenue No southbound entrance
104.39 168.00 104 US 101 north – Aberdeen, Port Angeles
Olympia 105.52 169.82 105A State Capitol, Olympia City Center Signed as exit 105 northbound
105.82 170.30 105B Port of Olympia Signed as exit 105 northbound
107.52 173.04 107 Pacific Avenue
Lacey 108.46 174.55 108A Sleater–Kinney Road south No northbound entrance; signed as exit 108 southbound
108.46 174.55 108B Sleater–Kinney Road north No northbound entrance; southbound exit is via exit 109
108.96 175.35 108C College Street Northbound exit only
109.19 175.72 109 Martin Way
112.01 180.26 111 SR 510 east (Marvin Road) – Yelm
114.36 184.04 114 Nisqually, Old Nisqually
Pierce 116.77 187.92 116 Mounts Road – Old Nisqually
DuPont 118.02 189.93 118 Center Drive - DuPont
119.07 191.62 119 Steilacoom–DuPont Road
120.93 194.62 120 Joint Base Lewis–McChord
Lakewood 122.74 197.53 122 Berkeley Street
123.64 198.98 123 Thorne Lane
124.70 200.69 124 Gravelly Lake Drive
125.92 202.65 125 Bridgeport Way – McChord Field
127.54 205.26 127 SR 512 east / South Tacoma Way – Puyallup
128.98 207.57 128 South 84th Street Southbound exit is via exit 129
Tacoma 129.65 208.65 129 South 72nd Street / South 74th Street
130.75 210.42 130 South 56th Street, Tacoma Mall Boulevard - University Place
131.89 212.26 132 SR 16 west (South 38th Street) – Gig Harbor, Bremerton, Tacoma Mall
133.76 215.27 133 I‑705 north / SR 7 south (Pacific Avenue) – Tacoma City Center
134.93 217.15 134 Portland Avenue Southbound exit is via exit 135
135.09 217.41 135 SR 167 north – Puyallup
Fife 136.15 219.11 136 20th Street East – Port of Tacoma Signed as exits 136A (20th Street) and 136B (Port of Tacoma) northbound
137.51 221.30 137 SR 99 north (54th Avenue East, Valley Avenue East) – Milton, Fife
King Federal Way 142.06 228.62 142 SR 18 (South 348th Street) – North Bend, Auburn Signed as exits 142A (east) and 142B (west)
143.89 231.57 143 South 320th Street – Federal Way
144.08 231.87 South 317th Street HOV only
Kent 146.87 236.36 147 South 272nd Street
149.23 240.16 149 SR 516 – Kent, Des Moines Signed as exits 149A (east) and 149B (west) northbound
SeaTac 151.24 243.40 151 Military Road, South 200th Street
152.32 245.14 152 South 188th Street, Orillia Road South
Tukwila 154.19 248.14 153 Southcenter Parkway – Tukwila, Southcenter Mall Northbound exit and southbound entrance
154.46 248.58 154 I‑405 north / SR 518 west – Sea-Tac Airport, Renton, Burien, Bellevue Signed as exits 154A (I-405) and 154B (SR 518) southbound
154.71 248.98 154B Southcenter Boulevard – Tukwila, Southcenter Mall Southbound exit and northbound entrance
156.00 251.06 156 SR 599 north (West Marginal Way) / Interurban Avenue – Tukwila
157.40 253.31 157 SR 900 east (M. L. King Way)
158.07 254.39 158 Boeing Access Road, East Marginal Way, Airport Way
Seattle 161.27 259.54 161 Swift Avenue, Albro Place
162 Corson Avenue, Michigan Street
163.03 262.37 163A Columbian Way, West Seattle Bridge Signed as exit 163 northbound
163.54 263.19 163B Forest Street, 6th Avenue South Southbound exit only
164 Airport Way Southbound exit only
164.55 264.82 164A I‑90 east – Bellevue, Spokane Signed as exit 164 southbound; I-90 exits 2A-B eastbound, 2B-C westbound
164.55 264.82 164B 4th Avenue South / South Atlantic Street (SR 519) Signed as exit 164 southbound
164.68 265.03 164 Dearborn Street Signed as exit 164A northbound; no southbound entrance
165.35 266.11 Express Lanes Northbound exit and southbound entrance
165.38 266.15 165A James Street Signed as exit 164A northbound
165.63 266.56 164A Madison Street – Convention Center Northbound exit only
165.75 266.75 165 Seneca Street Northbound exit and southbound entrance
165.81 266.85 165B Union Street Southbound exit and northbound entrance
166.26 267.57 166 Olive Way Northbound exit and entrance
166.42 267.83 166 Stewart Street, Denny Way Southbound exit and entrance
167 Mercer Street – Seattle Center
167.73 269.94 168A Lakeview Boulevard Northbound exit and southbound entrance
168.12 270.56 168B SR 520 – Bellevue, Kirkland
168.18 270.66 168A Boylston Avenue, Roanoke Street Southbound exit and northbound entrance
169.44 272.69 169 Northeast 45th Street
169.69 273.09 169 Northeast 50th Street
170.31 274.09 170 Ravenna Boulevard, Northeast 65th Street Northbound exit and southbound entrance
170.70 274.72 171 Northeast 71st Street, Northeast 65th Street Southbound exit and northbound entrance
170.87 274.99 171 SR 522 (Lake City Way) – Bothell Northbound exit and southbound entrance
171.56 276.10 172 North 85th Street, Aurora Avenue North (SR 99), Northeast 80th Street
172.58 277.74 Express Lanes Southbound exit and northbound entrance
172.82 278.13 173 1st Avenue Northeast, Northgate Way
173.89 279.85 174 Northeast 130th Street, Roosevelt Way Northbound exit and southbound entrance
city line
174.64 281.06 175 SR 523 (Northeast 145th Street) / 5th Avenue Northeast
Shoreline 175.58 282.57 Metro Transit Base Transit Base traffic only
176.19 283.55 176 Northeast 175th Street – Shoreline
county line
ShorelineMountlake Terrace
city line
177.81 286.16 177 SR 104 (Northeast 205th Street) – Edmonds, Lake Forest Park
Snohomish Mountlake Terrace 178.33 286.99 178 236th Street Southwest – Mountlake Terrace Northbound exit and southbound entrance
179.35 288.64 179 220th Street Southwest – Mountlake Terrace
Lynnwood 180.69 290.79 46th Avenue West (Lynnwood Transit Center) HOV only
180.77 290.92 181A To SR 524 / 44th Avenue West – Lynnwood Northbound exit and southbound entrance
181.59 292.24 181B SR 524 (196th Street Southwest) / Alderwood Mall Parkway – Lynnwood Signed as exit 181 southbound
182.67 293.98 182 I‑405 south – Renton, Bellevue
182.67 293.98 182 SR 525 north to SR 99 – Mukilteo Northbound exit and southbound entrance
183.96 296.05 183 164th Street Southwest
184.21 296.46 Ash Way Northbound exit and southbound entrance (buses only)
186.49 300.13 186 SR 96 east (128th Street Southwest)
Everett 187.80 302.23 112th Street Southeast HOV only
189.37 304.76 189 SR 99 south (Everett Mall Way) / SR 526 west / SR 527 south / Broadway – Mukilteo, Whidbey Island Ferry
192.51 309.81 Broadway Northbound exit only (HOV only)
192.72 310.15 192 41st Street, Evergreen Way
193.69 311.71 193 SR 529 (Pacific Avenue) – Everett City Center Northbound exit and southbound entrance
193.98 312.18 194 US 2 east – Snohomish, Wenatchee
194.08 312.34 194 SR 529 (Everett Avenue) – Everett City Center Southbound exit and northbound entrance
194.87 313.61 195 Marine View Drive – Port of Everett Northbound exit and southbound entrance
198.33 319.18 198 SR 529 south (North Broadway) – Port of Everett Southbound exit and northbound entrance
Marysville 199.17 320.53 199 SR 528 east – Marysville, Tulalip
200.84 323.22 200 88th Street Northeast, Quil Ceda Way
202.52 325.92 202 116th Street Northeast
206.13 331.73 206 SR 531 (172nd Street Northeast) – Arlington, Marysville
Arlington 208.72 335.90 208 SR 530 east – Silvana, Arlington, Darrington
210.36 338.54 210 236th Street Northeast
212.71 342.32 212 SR 532 west – Stanwood, Camano Island
215.09 346.15 215 300th Street Northwest
Skagit 218.61 351.82 218 Starbird Road
221.13 355.87 221 SR 534 east – Lake McMurray
224.00 360.49 224 Old Highway 99 South Northbound exit and southbound entrance
Mount Vernon 225.19 362.41 225 Anderson Road
226.45 364.44 226 SR 536 west (Kincaid Street)
227.79 366.59 227 SR 538 east (College Way)
Skagit River Bridge
Burlington 228.93 368.43 229 George Hopper Road
230.20 370.47 230 SR 20 – Anacortes, Burlington
231.27 372.19 231 SR 11 north (Chuckanut Drive) – Bow, Edison, Burlington
232.89 374.80 232 Cook Road – Sedro-Woolley
236.45 380.53 236 Bow Hill Road – Bow, Edison
240.99 387.84 240 Alger
Whatcom 242.92 390.94 242 Nulle Road – South Lake Samish
246.30 396.38 246 North Lake Samish
Bellingham 250.79 403.61 250 SR 11 south (Old Fairhaven Parkway, Chuckanut Drive) - Alaska Marine Highway
252.14 405.78 252 Samish Way – Western Washington University
253.03 407.21 253 Lakeway Drive
253.85 408.53 254 Iowa Street, Ohio Street, State Street
254.88 410.19 255 SR 542 east (Sunset Drive) – Mt. Baker
256.27 412.43 256 SR 539 north (Meridian Street) / Bellis Fair-Mall Parkway Signed as exits 256A (SR 539) and 256B (Bellis Fair-Mall Parkway) northbound
257.04 413.67 257 Northwest Avenue
257.72 414.76 258 Bakerview Road – Bellingham International Airport
260.19 418.74 260 Slater Road – Lummi Island
Ferndale 262.63 422.66 262 Main Street – Ferndale City Center
263.52 424.09 263 Portal Way
266.04 428.15 266 SR 548 north (Grandview Road) – Custer
270.30 435.01 270 Birch Bay, Lynden
Blaine 274.23 441.33 274 Peace Portal Drive – Semiahmoo Northbound exit and southbound entrance
275.21 442.91 275 SR 543 north to Hwy 15 – Pacific Border Crossing (Truck Customs) Northbound exit and southbound entrance
276.26 444.60 276 SR 548 south – Blaine City Center, Peace Arch State Park
276.62 445.18 Canada – United States border at Peace Arch Border Crossing
Hwy 99 continues north into British Columbia towards Vancouver
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Downtown Seattle express lanes

The entire highway is in Seattle, King County.

mi[78] km Destinations Notes
165.29 266.01 I‑5 south South end of express lanes
165.62 266.54 5th Avenue, Columbia Street Southbound exit and northbound entrance (HOV only)
166.49 267.94 Pike Street (Metro Transit Tunnel) Southbound exit and northbound entrance (HOV only)
166.63 268.16 Stewart Street – Seattle City Center Southbound exit and northbound entrance
Mercer Street Southbound exit and northbound entrance
168.96 271.91 Northeast 42nd Street – University of Washington Northbound exit and southbound entrance
169.66 273.04 Ravenna Boulevard Southbound entrance only (HOV only)
170.54 274.46 SR 522 (Lake City Way) – Bothell Northbound exit and southbound entrance
172.07 276.92 Northeast 103rd Street, 1st Avenue Northeast Northbound exit and southbound entrance
172.43 277.50 I‑5 north – Everett, Vancouver, BC North end of express lanes
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


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External links

Media related to Interstate 5 in Washington (state) at Wikimedia Commons

Route map: Google

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