List of state routes in Washington

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State Routes in Washington
System information
Length7,054.96 mi[1] (11,353.86 km)
Formed1964
NotesMaintained by WSDOT
Highway names
InterstatesInterstate X (I-X)
US HighwaysU.S. Route X (US X)
StateState Route nn (SR nn)
Spur routes:State Route nn Spur (SR nn Spur)
System links

The U.S. state of Washington has over 7,000 miles (11,000 km) of state highways maintained by the Washington State Department of Transportation (WSDOT).[1] The highway system is defined through acts by the state legislature and is encoded in the Revised Code of Washington as State Routes (SR). It was created in 1964 to replace an earlier numbering scheme and ratified by the state legislature in 1970. The system's 196 highways are almost entirely paved, with the exception of a gravel section on SR 165.

The state's Interstate and U.S. Highways are also defined as part of the state route system, but are omitted from this list.

State routes

Number Length (mi)[1] Length (km) Southern or western terminus Northern or eastern terminus Formed[2] Removed Notes
SR 3 59.81 96.25 US 101 in Shelton SR 104 near Port Gamble 01964-01-011964 current
SR 4 62.27 100.21 US 101 at Johnston's Landing I-5 in Kelso 01964-01-011964 current
SR 6 51.37 82.67 US 101 in Raymond I-5 in Chehalis 01964-01-011964 current
SR 7 58.26 93.76 US 12 in Morton I-5/I-705 in Tacoma 01964-01-011964 current
SR 8 20.67 33.27 US 12 in Elma US 101 near Olympia 01967-01-011967 current
SR 8 — — US 410 in Elma I-5 at Grand Mound 01964-01-011964 01967-01-011967 Replaced by US 12, number re-assigned to former US 410
SR 9 97.35 156.67 SR 522 near Woodinville BC 11 in Sumas 01964-01-011964 current
SR 10 16.16 26.01 SR 970 in Teanaway US 97 near Ellensburg 01970-01-011970 current
SR 11 21.30 34.28 I-5 in Burlington I-5 in Bellingham 01964-01-011964 current
SR 12 — — US 97/US 830 near Maryhill US 410 near Kennewick 01964-01-011964 01967-01-011967 Replaced by SR 14, number reassigned to US 12
SR 14 180.66 290.74 I-5 in Vancouver I-82/US 395 near Plymouth 01967-01-011967 current
SR 14 — — I-5 near Napavine US 410 in Naches 01964-01-011964 01967-01-011967 Replaced by US 12
SR 16 27.16 43.71 SR 3 in Gorst I-5 in Tacoma 01964-01-011964 current Signed east–west
SR 17 136.67 219.95 US 395 in Mesa US 97 near Brewster 01964-01-011964 current
SR 18 28.41 45.72 SR 99 in Federal Way I-90 near North Bend 01964-01-011964 current
SR 19 14.09 22.68 SR 104 near Port Ludlow SR 20 near Port Townsend 01991-01-011991 current
SR 20 436.13 701.88 US 101 at Discovery Bay US 2 in Newport 01964-01-011964 current Longest state highway in Washington
SR 21 191.29 307.85 SR 260 in Kahlotus BC Hwy 41 at Canada–US border in Danville 01964-01-011964 current
SR 22 35.84 57.68 I-82/US 12 near Zillah I-82/US 12 in Prosser 01964-01-011964 current
SR 23 66.00 106.22 US 195 near Steptoe SR 28 in Harrington 01964-01-011964 current
SR 24 79.23 127.51 I-82/US 12/US 97 in Yakima SR 26 in Othello 01964-01-011964 current
SR 25 121.17 195.00 US 2 in Davenport BC Hwy 22 at Canada–US border 01964-01-011964 current
SR 26 133.61 215.02 I-90 near Vantage US 195 in Colfax 01964-01-011964 current
SR 27 90.00 144.84 US 195 near Pullman SR 290 in Spokane Valley 01964-01-011964 current
SR 28 135.25 217.66 US 2/US 97 in East Wenatchee US 2 in Davenport 01964-01-011964 current
SR 30 — — US 97 in Tonasket US 395 near Kettle Falls 01964-01-011964 01973-01-011973[3] Replaced by SR 20
SR 31 26.79 43.11 SR 20 in Tiger BC Hwy 6 at Canada–US border 01964-01-011964 current
SR 35 — — OR 35 at Hood River SR 14 in White Salmon proposed —
SR 41 0.41 0.66 ID 41 in Oldtown US 2 in Newport 01997-01-011997 current
SR 92 9.16 14.74 SR 9 in Lake Stevens Mountain Loop Highway in Granite Falls 01964-01-011964 current
SR 96 6.75 10.86 I-5 in Everett SR 9 near Cathcart 01991-01-011991 current
SR 99 49.13 79.07 I-5 in Fife I-5/SR 526/SR 527 in Everett 01964-01-011964 current
SR 100 4.68 7.53 US 101 in Ilwaco SR 100 in Ilwaco 01991-01-011991 current
SR 102 2.86 4.60 Washington Corrections Center US 101 near Shelton 01984-01-011984 current
SR 103 19.97 32.14 US 101 in Seaview Leadbetter Point State Park 01964-01-011964 current
SR 104 31.75 51.10 US 101 near Discovery Bay SR 522 in Lake Forest Park 01964-01-011964 current
SR 105 48.57 78.17 US 101 in Raymond US 101 in Aberdeen 01964-01-011964 current
SR 106 20.09 32.33 US 101 in Skokomish SR 3 near Belfair 01964-01-011964 current
SR 107 7.93 12.76 US 101 near Cosmopolis US 12 in Montesano 01964-01-011964 current
SR 108 11.96 19.25 SR 8 in McCleary US 101 in Kamilche 01964-01-011964 current
SR 109 40.50 65.18 US 101 in Hoquiam Quinault Street in Taholah 01964-01-011964 current
SR 110 11.10 17.86 Olympic National Park near La Push US 101 in Forks 01991-01-011991 current
SR 110 — — SR 11 in Bellingham I-5 in Bellingham 01967-01-011967 01975-01-011975[3] Replaced by SR 11
SR 111 — — Hurricane Ridge in Olympic National Park US 101 in Port Angeles 01964-01-011964 01971-01-011971[3]
SR 112 61.31 98.67 Makah Indian Reservation near Neah Bay US 101 near Port Angeles 01964-01-011964 current
SR 113 9.98 16.06 US 101 in Sappho SR 112 near Clallam Bay 01991-01-011991 current
SR 113 — — US 101 at Discovery Bay SR 525 near Coupeville 01964-01-011964 01973-01-011973[3] Replaced by SR 20
SR 115 2.28 3.67 Point Brown Avenue in Ocean Shores SR 109 01973-01-011973 current
SR 116 9.83 15.82 SR 19 in Irondale Fort Flagler State Park 01991-01-011991 current
SR 117 1.40 2.25 US 101 in Port Angeles Marine Drive in Port Angeles 01991-01-011991 current
SR 119 10.93 17.59 US 101 in Hoodsport FH 24 near Lake Cushman 01991-01-011991 current
SR 120 — — US 830 in Washougal US 830 in Prindle 01964-01-011964 01967-01-011967 Replaced by SR 140
SR 121 7.67 12.34 I-5 near Maytown I-5 near Tumwater 01967-01-011967 current
SR 121 — — US 830 in Bingen FR 24 near Trout Lake 01964-01-011964 01967-01-011967 Replaced by SR 141
SR 122 7.88 12.68 US 12 in Silver Creek US 12 in Mossyrock 01991-01-011991 current
SR 122 — — US 830 in Lyle US 97 in Goldendale 01964-01-011964 01967-01-011967 Replaced by SR 142
SR 123 16.36 26.33 US 12 near Packwood SR 410 near Mount Rainier 01967-01-011967 current
SR 124 44.72 71.97 US 12 in Burbank US 12 in Waitsburg 01964-01-011964 current
SR 125 23.65 38.06 OR 11 near Walla Walla SR 124 near Prescott 01964-01-011964 current
SR 126 — — US 12 near Dayton US 12 near Pomeroy 01964-01-011964 01991-01-011991[3]
SR 127 27.05 43.53 US 12 near Pomeroy SR 26 at Dusty 01970-01-011970 current
SR 128 2.24 3.60 US 12 in Clarkston ID 128 near Clarkston 01964-01-011964 current
SR 129 42.55 68.48 OR 3 near Anatone US 12 in Clarkston 01964-01-011964 current
SR 131 2.07 3.33 FR 25 near Randle US 12 in Randle 01991-01-011991 current
SR 131 — — US 10/US 97 near Ellensburg US 97 near Virden 01964-01-011964 01975-01-011975[3] Replaced by US 97
SR 140 — — SR 14 in Washougal SR 14 in Prindle 01967-01-011967 01991-01-011991[3]
SR 141 29.25 47.07 SR 14 in Bingen FR 24 near Trout Lake 01967-01-011967 current
SR 141 — — SR 14 near Riffe SR 7 in Morton 01964-01-011964 01967-01-011967
SR 142 35.24 56.71 SR 14 in Lyle US 97 in Goldendale 01967-01-011967 current
SR 143 — — SR 14 near Packwood US 410 at Cayuse Pass 01964-01-011964 01967-01-011967 Replaced by SR 123
SR 143 — — SR 14 in Plymouth Umatilla Bridge 01973-01-011973 01985-01-011985[3] Replaced by I-82
SR 150 11.76 18.93 Wapato Point Parkway in Manson US 97 near Chelan Falls 01964-01-011964 current
SR 151 — — US 2 in Orondo US 97 near Chelan 01964-01-011964 01987-01-011987[3] Replaced by US 97
SR 153 30.78 49.54 US 97 near Pateros SR 20 near Twisp 01964-01-011964 current
SR 155 78.35 126.09 US 2 near Coulee City US 97/SR 20 in Omak 01964-01-011964 current
SR 160 7.47 12.02 SR 16 in Port Orchard Fauntleroy ferry terminal in Seattle 01964-01-011964 current
SR 161 36.25 58.34 SR 7 near Eatonville SR 18 in Federal Way 01964-01-011964 current
SR 162 17.37 27.95 SR 410 in Sumner SR 165 near Buckley 01964-01-011964 current
SR 163 3.37 5.42 SR 16 in Tacoma Tahlequah ferry terminal in Vashon 01991-01-011991 current
SR 163 — — US 410 in Sumner SR 167 in Auburn 01964-01-011964 01969-01-011969 Replaced by SR 167
SR 164 14.82 23.85 SR 18 in Auburn SR 410 in Enumclaw 01969-01-011969 current
SR 165 21.18 34.09 Mowich Lake Road near Mowich Lake SR 410 in Buckley 01964-01-011964 current
SR 166 5.13 8.26 SR 16 near Port Orchard Whitter Avenue in Port Orchard 01993-01-011993 current
SR 167 28.60 46.03 I-5 in Tacoma SR 900 in Renton 01964-01-011964 current
SR 168 — — SR 410 near Greenwater SR 410 near Cliffdell proposed —
SR 169 25.26 40.65 SR 164 in Enumclaw SR 900 in Renton 01964-01-011964 current
SR 170 3.66 5.89 SR 17 near Warden South Main Street in Warden 01970-01-011970 current
SR 170 — — Ringold River Road near Basin City SR 17 near Mesa 01965-01-011965 01967-01-011967
SR 171 3.79 6.10 I-90 in Moses Lake SR 17 in Moses Lake 01964-01-011964 current
SR 172 35.01 56.34 US 2 at Farmer SR 17 near Mansfield 01964-01-011964 current
SR 173 11.86 19.09 SR 17 in Bridgeport US 97 in Brewster 01964-01-011964 current
SR 174 40.66 65.44 SR 17 in Leahy SR 21 near Wilbur 01964-01-011964 current
SR 181 6.05 9.74 SR 516 in Kent I-405 in Tukwila 01964-01-011964 current
SR 193 2.58 4.15 SR 128 near Clarkston Wawawai Road near Clarkston 01964-01-011964 current
SR 194 21.01 33.81 Almota Road in Almota US 195 near Pullman 01991-01-011991 current
SR 202 30.58 49.21 SR 522 in Woodinville I-90 in North Bend 01970-01-011970 current
SR 202 — — SR 522 near Bothell US 2 in Monroe 01964-01-011964 01970-01-011970 Replaced by SR 522
SR 203 24.26 39.04 SR 202 in Fall City US 2 in Monroe 01970-01-011970 current
SR 204 2.38 3.83 US 2 near Everett SR 9 in Lake Stevens 01964-01-011964 current
SR 206 15.30 24.62 US 2 near Mead Mount Spokane State Park 01964-01-011964 current
SR 207 4.38 7.05 US 2 at Coles Corner Lake Wenatchee State Park 01964-01-011964 current
SR 209 — — US 2 near Leavenworth SR 209 in Lake Wenatchee State Park 01964-01-011964 01991-01-011991[3]
SR 211 15.18 24.43 US 2 near Diamond Lake SR 20 in Usk 01975-01-011975 current
SR 213 0.35 0.56 US 97 near Malott First Avenue in Malott 02008-01-012008 current
SR 215 6.24 10.04 SR 20 in Okanogan US 97/SR 20 in Omak 01973-01-011973 current
SR 220 27.42 44.13 Fort Simcoe State Park SR 22 in Toppenish 01964-01-011964 01991-01-011991[3]
SR 221 25.95 41.76 SR 14 in Paterson SR 22 in Prosser 01964-01-011964 current
SR 223 3.80 6.12 SR 22 near Toppenish I-82/US 12 in Granger 01967-01-011967 current
SR 224 10.15 16.33 I-82/US 12 in Benton City SR 240 in Richland 01965-01-011965 current
SR 225 11.33 18.23 SR 224 in Kiona SR 240 at Horn Rapids Dam 01991-01-011991 current
SR 230 — — I-90/US 395 in Ritzville SR 23 in Ewan proposed —
SR 231 74.97 120.65 SR 23 near Sprague US 395 near Chewelah 01964-01-011964 current
SR 232 — — SR 231 near Valley US 395 near Valley 01967-01-011967 01991-01-011991[3]
SR 237 — — SR 20 in Fredonia SR 11 near Edison 01975-01-011975 01991-01-011991[3]
SR 240 41.31 66.48 SR 24 near Hanford Reservation US 395 in Kennewick 01964-01-011964 current
SR 241 25.18 40.52 SR 22 in Mabton SR 24 near Hanford Reservation 01967-01-011967 current
SR 243 28.23 45.43 SR 24 near Desert Aire SR 26 near Vantage 01964-01-011964 current
SR 251 — — SR 25 in Northport BC Hwy 22A at the Canada–US border 01964-01-011964 01983-01-011983[3]
SR 260 37.98 61.12 SR 17 near Connell SR 26/SR 261 in Washtucna 01964-01-011964 current
SR 261 62.71 100.92 US 12 near Starbuck I-90/US 395 in Ritzville 01964-01-011964 current
SR 262 24.22 38.98 SR 26 near Othello SR 17 near Warden 01991-01-011991 current
SR 263 9.24 14.87 Port of Windust SR 260 in Kahlotus 01991-01-011991 current
SR 270 9.89 15.92 US 195 in Pullman ID 8 near Moscow 01964-01-011964 current
SR 271 8.48 13.65 SR 27 near Oakesdale US 195 in Rosalia 01964-01-011964 current
SR 272 19.22 30.93 US 195 in Colfax ID 6 near Palouse 01964-01-011964 current
SR 274 1.92 3.09 SR 27 in Tekoa ID 60 near Tekoa 01964-01-011964 current
SR 276 — — US 195 near Pullman SR 270 near Pullman 01973-01-011973 02016-01-012016[3] Never built
SR 278 5.50 8.85 SR 27 in Rockford ID 58 near Rockford 01991-01-011991 current
SR 281 10.55 16.98 I-90 near George SR 28 in Quincy 01964-01-011964 current
SR 282 4.92 7.92 SR 28 in Ephrata SR 17 near Ephrata 01964-01-011964 current
SR 283 14.86 23.91 SR 281 Spur near George SR 28 near Ephrata 01964-01-011964 current
SR 285 5.04 8.11 SR 28 in East Wenatchee US 2/US 97 in Sunnyslope 01977-01-011977 current
SR 290 18.31 29.47 I-90 in Spokane ID 53 at State Line 01964-01-011964 current
SR 291 33.09 53.25 US 2/US 395 in Spokane SR 231 near Ford 01964-01-011964 current
SR 292 5.91 9.51 SR 231 in Springdale US 395 in Loon Lake 01964-01-011964 current
SR 294 — — US 395 in Colville SR 31 in Tiger 01964-01-011964 01973-01-011973[3] Replaced by SR 20
SR 300 3.35 5.39 Belfair State Park SR 3 in Belfair 01964-01-011964 current
SR 302 16.87 27.15 SR 3 in Allyn SR 16 in Gig Harbor 01964-01-011964 current
SR 303 9.27 14.92 SR 304 in Bremerton SR 3 in Silverdale 01964-01-011964 current
SR 304 9.27 14.92 SR 3 in Navy Yard City Colman Dock ferry terminal in Seattle 01964-01-011964 current Deleted between 1991 and 1994[3]
SR 305 13.50 21.73 Colman Dock ferry terminal in Seattle SR 3 in Poulsbo 01964-01-011964 current
SR 306 — — SR 303 in Bremerton Illahee State Park 01964-01-011964 01993-01-011993[3]
SR 307 5.25 8.45 SR 305 in Poulsbo SR 104 near Kingston 01991-01-011991 current
SR 308 3.42 5.50 SR 3 in Bangor Naval Undersea Warfare Center in Keyport 01971-01-011971 current
SR 310 1.84 2.96 SR 3 in Bremerton SR 304 in Bremerton 01991-01-011991 current
SR 311 — — US 2 near Diamond Lake SR 20 in Usk 01964-01-011964 01975-01-011975[3] Replaced by SR 211
SR 339 — — Vashon ferry terminal Colman Dock ferry terminal in Seattle 01994-01-011994 current Passenger-only ferry route
SR 397 22.31 35.90 I-82/US 395 near Finley I-182/US 12/US 395 in Pasco 01991-01-011991 current
SR 401 12.13 19.52 US 101 in Megler SR 4 in Naselle 01964-01-011964 current
SR 402 — — SR 4 in Grays River SR 6 near Pe Ell 01964-01-011964 01971-01-011971[3] Never built proposal
SR 403 — — Altoona SR 4 in Rosburg 01964-01-011964 01991-01-011991[3]
SR 407 — — SR 4 in Cathlamet Elochoman State Forest 01964-01-011964 01991-01-011991[3]
SR 409 3.84 6.18 Wahkiakum County ferry terminal on Puget Island SR 4 in Cathlamet 01964-01-011964 current
SR 410 107.44 172.91 SR 167 in Sumner US 12 in Naches 01967-01-011967 current
SR 411 13.48 21.69 SR 432 in Longview I-5/SR 504 in Castle Rock 01964-01-011964 current
SR 431 — — SR 4 in Kelso I-5 in Kelso 01967-01-011967 01991-01-011991[3]
SR 432 10.32 16.61 SR 4 in West Longview I-5 in Kelso 01967-01-011967 current
SR 433 0.94 1.51 Lewis and Clark Bridge SR 432 in Longview 01967-01-011967 current
SR 500 22.64 36.44 I-5 in Vancouver SR 14 in Camas 01964-01-011964 current
SR 501 12.70 20.44 I-5 in Vancouver I-5 in Ridgefield 01964-01-011964 current Divided into two sections
SR 502 6.12 9.85 I-5 near Mount Vista SR 503 in Battle Ground 01964-01-011964 current
SR 503 54.11 87.08 SR 500 in Orchards I-5 in Woodland 01964-01-011964 current
SR 504 51.76 83.30 I-5/SR 411 in Castle Rock Mount St. Helens National Volcanic Monument 01964-01-011964 current
SR 505 19.29 31.04 Kerron Street in Winlock SR 504 near Toutle 01964-01-011964 current
SR 506 11.53 18.56 2nd Street in Ryderwood I-5 near Toledo 01964-01-011964 current
SR 507 43.88 70.62 I-5/US 12 in Centralia SR 7 in Spanaway 01964-01-011964 current
SR 508 32.84 52.85 I-5/US 12 in Napavine SR 7 in Morton 01964-01-011964 current
SR 509 35.17 56.60 I-705 in Tacoma SR 99 in Seattle 01964-01-011964 current
SR 510 13.10 21.08 SR 507 in Yelm I-5 in Lacey 01964-01-011964 current
SR 512 12.06 19.41 I-5 in Lakewood SR 161/SR 167 in Puyallup 01964-01-011964 current
SR 513 3.35 5.39 SR 520 in Seattle Magnuson Park in Seattle 01964-01-011964 current
SR 514 — — I-5 in Fife SR 161 in Edgewood 01964-01-011964 01991-01-011991[3]
SR 515 7.86 12.65 SR 516 in Kent SR 900 in Renton 01964-01-011964 current
SR 516 16.49 26.54 SR 509 in Des Moines SR 169 in Maple Valley 01964-01-011964 current
SR 518 3.42 5.50 SR 509 in Burien I-5/I-405 in Tukwila 01964-01-011964 current
SR 519 1.14 1.83 I-90 in Seattle Colman Dock ferry terminal in Seattle 01991-01-011991 current
SR 520 12.82 20.63 I-5 in Seattle SR 202 in Redmond 01964-01-011964 current
SR 522 24.64 39.65 I-5 in Seattle US 2 in Monroe 01964-01-011964 current
SR 523 2.45 3.94 SR 99 in Seattle/Shoreline SR 522 in Lake Forest Park/Shoreline 01991-01-011991 current
SR 524 14.68 23.63 SR 104 in Edmonds SR 522 in Maltby 01964-01-011964 current
SR 525 30.68 49.37 I-5/I-405 in Lynnwood SR 20 near Coupeville 01964-01-011964 current
SR 526 4.52 7.27 SR 525 in Mukilteo I-5/SR 99/SR 527 in Everett 01964-01-011964 current
SR 527 9.29 14.95 I-405 in Bothell I-5/SR 99/SR 526 in Everett 01964-01-011964 current
SR 528 3.46 5.57 I-5 in Marysville SR 9 in Marysville 01964-01-011964 current
SR 529 7.88 12.68 I-5 in Everett SR 528 in Marysville 01971-01-011971 current
SR 530 50.45 81.19 I-5 near Arlington SR 20 in Rockport 01964-01-011964 current
SR 531 9.88 15.90 Wenberg County Park near Lake Goodwin SR 9 in Arlington 01991-01-011991 current
SR 532 10.09 16.24 Sunrise Boulevard on Camano Island I-5 near Stanwood 01964-01-011964 current
SR 534 5.08 8.18 I-5 in Conway SR 9 in Lake McMurray 01964-01-011964 current
SR 536 5.38 8.66 SR 20 near Mount Vernon I-5 in Mount Vernon 01964-01-011964 current
SR 537 — — SR 536 in Fredonia SR 11 near Edison 01964-01-011964 01975-01-011975[3] Replaced by SR 237
SR 538 3.61 5.81 I-5 in Mount Vernon SR 9 near Big Lake 01964-01-011964 current
SR 539 15.18 24.43 I-5 in Bellingham BC Hwy 13 at Canada–US border near Lynden 01964-01-011964 current
SR 540 — — Lummi Indian Reservation I-5 in Ferndale 01964-01-011964 01984-01-011984[3]
SR 542 57.29 92.20 I-5 in Bellingham Mount Baker Ski Area 01964-01-011964 current
SR 543 1.09 1.75 I-5 in Blaine BC Hwy 15 at Canada–US border in Blaine 01964-01-011964 current
SR 544 8.94 14.39 SR 539 near Lynden SR 9 in Nooksack 01964-01-011964 current
SR 546 8.02 12.91 SR 539 near Lynden SR 9 near Sumas 01964-01-011964 current
SR 547 10.72 17.25 SR 542 in Kendall SR 9 in Sumas 01984-01-011984 current
SR 548 13.85 22.29 I-5 near Ferndale I-5 in Blaine 01991-01-011991 current
SR 599 1.75 2.82 I-5 in Tukwila SR 99 in Tukwila 01971-01-011971 current
SR 603 — — I-5 near Winlock SR 6 near Chehalis 01964-01-011964 01991-01-011991[3] Replaced by SR 505
SR 702 9.32 15.00 SR 507 in McKenna SR 7 near Eatonville 01964-01-011964 current
SR 704 0.63 1.01 Spanaway Loop Road in Spanaway SR 7 in Spanaway 02002-01-012002 current
SR 706 13.64 21.95 SR 7 in Elbe Longmire in Mount Rainier National Park 01964-01-011964 current
SR 801 — — SR 8 in Rochester I-5 in Maytown 01964-01-011964 01967-01-011967 Replaced by SR 121
SR 821 25.21 40.57 I-82/US 97 in Selah I-82/US 97 near Ellensburg 01973-01-011973 current
SR 823 5.56 8.95 I-82/US 97 in Selah SR 821 in Selah 01984-01-011984 current
SR 831 — — US 830 in Kelso I-5 in Kelso 01964-01-011964 01967-01-011967 Replaced by SR 431
SR 832 — — US 830 in West Longview I-5 in Kelso 01964-01-011964 01967-01-011967 Replaced by SR 432
SR 833 — — Lewis and Clark Bridge SR 832 in Longview 01964-01-011964 01967-01-011967 Replaced by SR 433
SR 900 16.20 26.07 I-5 in Tukwila I-90 in Issaquah 01964-01-011964 current
SR 901 — — I-90 in Issaquah SR 202 in Redmond 01964-01-011964 01991-01-011991[3]
SR 902 12.36 19.89 I-90/US 395 near Medical Lake I-90/US 395 near Medical Lake 01964-01-011964 current
SR 903 10.06 16.19 SR 970 near Cle Elum Wenatchee National Forest near Lake Cle Elum 01964-01-011964 current
SR 904 16.96 27.29 I-90/US 395 in Tyler I-90/US 395 in Four Lakes 01964-01-011964 current
SR 906 2.65 4.26 I-90 at Snoqualmie Pass I-90 in Hyak 01967-01-011967 current
SR 908 — — I-405 in Kirkland SR 202 in Redmond 01971-01-011971 02010-01-012010[3]
SR 920 — — SR 901 in Redmond SR 202 in Redmond 01975-01-011975 01985-01-011985[3] Replaced by SR 520
SR 970 10.31 16.59 I-90 in Cle Elum US 97 in Virden 01975-01-011975 current
SR 971 15.02 24.17 US 97 Alt near Entiat US 97 Alt near Chelan 01991-01-011991 current
  •       Former
  •       Proposed and unbuilt

Special routes

WSDOT does not maintain business routes, which are instead created and signed by local jurisdictions.[4]

Number Length (mi)[1] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes

SR 9 Spur 		0.24 0.39 SR 9 in Sumas Canada–US border in Sumas — —

SR 14 Spur 		0.39 0.63 SR 14 in Maryhill US 97 in Maryhill — —

SR 14 Bus. 		— — SR 14 in Camas SR 14 near Washougal — —

SR 16 Alt. 		0.68 1.09 Serves Tacoma Narrows Bridge toll plaza 02007-01-012007 current

SR 16 Spur 		0.39 0.63 SR 16 in Gorst SR 3 in Gorst 01988-01-011988 current

SR 20 Spur 		7.78 12.52 SR 20 near Anacortes San Juan Islands ferry — —

SR 20 Bus. 		— — — — 01964-01-011964 01973-01-011973 Replaced by SR 215

SR 26 Spur 		0.07 0.11 SR 26 in Colfax US 195 in Colfax — —

SR 28 Spur 		0.76 1.22 SR 285 in East Wenatchee SR 28 in East Wenatchee — —

SR 92 Spur 		0.08 0.13 SR 92 in Granite Falls Granite Falls — —

SR 100 Spur 		0.08 0.13 SR 100 near Fort Canby Cape Disappointment State Park 01991-01-011991 current

SR 104 Spur 		0.34 0.55 SR 99 in Edmonds/Shoreline SR 104 in Edmonds/Shoreline — —

SR 105 Spur 		0.15 0.24 SR 105 in Aberdeen US 101 in Aberdeen — —

SR 105 Spur 		4.02 6.47 SR 105 at Twin Harbors State Park Westhaven Drive in Westport — —

SR 108 Bus. 		— — SR 108 near McCleary SR 108 in McCleary — —

SR 109 Spur 		1.82 2.93 SR 109 in Hoquiam US 101 in Hoquiam — —

SR 110 Spur 		2.67 4.30 Olympic National Park boundary near Mora SR 110 near Mora — —

SR 125 Spur 		0.73 1.17 US 12 in Walla Walla SR 125 in Walla Walla — —

SR 129 Spur 		0.25 0.40 SR 129 in Clarkston US 12 in Clarkston — —

SR 141 Alt. 		2.16 3.48 SR 14 in Underwood SR 141 near White Salmon — —

SR 151 Spur 		— — SR 151 near Chelan US 97 near Chelan 01964-01-011964 01987-01-011987 Replaced by US 97

SR 155 Spur 		0.37 0.60 SR 215 in Omak SR 155 in Omak — —

SR 174 Spur 		1.37 2.20 SR 174 near Grand Coulee Crown Point Vista at Steamboat Rock State Park 01964-01-011964 current

SR 174 Spur 		0.09 0.14 SR 17 in Leahy SR 174 in Leahy 02009-01-012009 current

SR 240 Bus. 		— — I-182/US 12/SR 240 in Richland SR 240 in Richland — —

SR 281 Spur 		1.69 2.72 I-90/SR 283 near George SR 281 near George — —

SR 302 Spur 		1.28 2.06 SR 302 in Purdy SR 16 near Purdy — —

SR 503 Spur 		8.42 13.55 SR 503 near Yale Swift Reservoir in Skamania County — —

SR 504 Spur 		0.87 1.40 SR 504 near Kid Valley Toutle River Sediment Retention Structure — —

SR 510 Spur 		1.17 1.88 SR 510 in Yelm Cullens Road in Yelm 02010-01-012010 current

SR 524 Spur 		0.70 1.13 SR 104 in Edmonds SR 524 in Edmonds — —

SR 524 Spur 		0.50 0.80 I-5 in Lynnwood SR 524 in Lynnwood — —

SR 525 Spur 		0.86 1.38 SR 525 in Mukilteo SR 526 in Mukilteo 02001-01-012001 current

SR 529 Spur 		0.20 0.32 SR 529 in Everett I-5 in Everett — —

SR 903 Spur 		0.33 0.53 SR 903 in Cle Elum SR 970 near Cle Elum — —

SR 906 Spur 		0.43 0.69 SR 906 in Hyak WSDOT Maintenance Office in Hyak — —
  •       Former

References

  1. ^ a b c d Multimodal Planning Division (January 3, 2018). State Highway Log Planning Report 2017, SR 2 to SR 971 (PDF) (Report). Washington State Department of Transportation. Retrieved July 5, 2018.
  2. ^ "Chapter 47.17: State Highway Routes". Revised Code of Washington. Washington State Legislature. Retrieved November 23, 2022.
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad "Chapter 47.17 RCW Dispositions: State Highway Routes". Revised Code of Washington. Washington State Legislature. Retrieved July 5, 2018.
  4. ^ "WSDOT Traffic Manual, Chapter 2: Signs" (PDF). Washington State Department of Transportation. May 2021. p. 2-52. Retrieved September 10, 2021.
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