List of former state routes in Washington

For a list of current state highways, see List of state highways in Washington.

System information
Notes:	Defined by RCW 47.17.420
Highway names
Interstates:	Interstate X (I-X)
US Routes:	U.S. Route X (US X)
State:	State Route X (SR x)
System links
State highways in Washington Interstate US State Scenic Former PSH 1964 renumbering Former

Since the 1964 state highway renumbering, which established the current state route system, the Washington State Department of Transportation has decommissioned thirty state routes. Once a highway has been decommissioned, the highway is turned over to the local county or city that it resided in, who is then responsible for all maintenance on the former highway. All former highways are codified in Washington law under the Revised Code of Washington, chapter 47.17, section 420.

State Route 30

State Route 30
Location:	Tonasket – east of Kettle Falls (-118.123 48.627)
Existed:	1970–1973

State Route 95

U.S. Route 95
Location:
Existed:	1970–1979

Main article: U.S. Route 95

State Route 110

State Route 110
Location:
Existed:	1970–1975

Main article: Washington State Route 110

State Route 111 Temporary

40px State Route 111 Temporary
Location:
Existed:	1970–1971

State Route 111 was a state highway in the U.S. state of Washington, running from Hurricane Ridge in the Olympic National Park to US 101.

State Route 113

State Route 113
Location:
Existed:	1970–1973

The portion of Washington State Route 20 within Jefferson and Island Counties was once known as SR 113.

State Route 126

State Route 126
Location:
Existed:	1970–April 1, 1992

SR 126 was a state route in the U.S. state of Washington. It was an auxiliary route of US 12. It started at US 12, then headed east to US 12 again, where it ended. In January 1964, SSH 3L became SR 126. SR 126 was dropped out of the system in 1992 because it was mostly very steep and unpaved.

State Route 131

State Route 131
Location:
Existed:	1970–1975

SR 131 was a section of what is now known as US 97, north of Ellensburg.

State Route 140

State Route 140
Location:
Existed:	1970–April 1, 1992

Main article: Washington State Route 140

State Route 143

State Route 143
Location:
Existed:	1973–1985

State Route 151

State Route 151
Location:
Existed:	1970–1987

State Route 209

State Route 209
Location:
Existed:	1970–April 1, 1992

State Route 209 was a state route in the U.S. state of Washington. It was an auxiliary route of U.S. Route 2. It started at SR 207 in Lake Wenatchee State Park and went east to the community of Plain and then south to U.S. Route 2 near Leavenworth. In January 1964, SSH 15C became SR 209 and SR 207. SR 209 was removed in 1992.

State Route 220

State Route 220
Location:	220
Existed:	1970–April 1, 1992

Main article: Washington State Route 220

State Route 232

State Route 232
Location:
Existed:	1970–April 1, 1992

State Route 232 was a state route in the U.S. state of Washington. It was an auxiliary route of State Route 23. It started at SR 231 and went east to U.S. Route 395. In 1967, SSH 3U became SR 232. SR 232 was later removed in 1992.

State Route 237

State Route 237
Location:
Existed:	1975–April 1, 1992

Main article: Washington State Route 237

State Route 251

State Route 251
Location:
Existed:	1970–1983

Main article: Washington State Route 251

State Route 294

State Route 294
Location:
Existed:	1970–1973

State Route 304

State Route 304
Location:
Existed:	1970–April 1, 1992

State Route 306

State Route 306
Location:
Existed:	1970–1993

State Route 306 was a state route in the U.S. state of Washington. It was an auxiliary route of State Route 3. It started at SR 303 and went east to Illahee State Park. In 1964, part of SSH 21B became SR 306. SR 306 was later removed in 1993.

State Route 311

State Route 311
Location:
Existed:	1970–1973

Main article: Washington State Route 211

State Route 402

State Route 402
Location:
Existed:	1970–1971

Main article: Washington State Route 4

State Route 403

State Route 403
Location:
Existed:	1970–April 1, 1992

Main article: Washington State Route 403

State Route 407

State Route 407
Location:
Existed:	1970–April 1, 1992

Main article: Washington State Route 4

State Route 431

State Route 431
Location:
Existed:	1970–April 1, 1992

State Route 431 was a state route in the U.S. state of Washington. It was an auxiliary route of State Route 4. It started at SR 4 and went north to I-5. In 1964, a branch of PSH 12 became SR 831. SR 831 was an auxiliary route of U.S. Route 830 and the route was switched to the current designation of SR 4 in 1967. SR 431 was later removed in 1992.

State Route 514

State Route 514
Location:
Existed:	1970–April 1, 1992

SR 514 was a state route in the U.S. state of Washington. It was an auxiliary route of Interstate 5. It started at SR 99 in Fife, then headed east to SR 161, where it ended in Milton. In January 1964, SSH 1X became SR 514. On April 1, 1992, SR 514 became defunct.

State Route 537

State Route 537
Location:
Existed:	1970–1975

Main article: Washington State Route 237

State Route 540

State Route 540
Location:
Existed:	1970–1974

SR 540 was a state route in the U.S. state of Washington. It was an auxiliary route of Interstate 5. It started at the Lummi Indian Reservation, then headed east to I-5, where it ended. In January 1964, SSH 1Z became SR 540. In 1984, SR 540 became defunct.

State Route 603

State Route 603
Location:
Existed:	1970–April 1, 1992

Main article: Washington State Route 505

State Route 901

State Route 901
Location:
Existed:	1970–1992

SR 901 was created in 1964 from Secondary State Highway 2D. At the time of its creation, SR 901 began at the intersection of Lake Washington Boulevard and State Route 520, on the border of Kirkland and Bellevue. It then traveled north along Lake Washington Blvd. to downtown Kirkland. At the intersection of Lake St. and Central Way, SR 901 turned right, traveling east along Central Way. It then continued as Redmond Way into Redmond turning south onto West Lake Sammamish Parkway when the roads intersected. It then followed West Lake Sammamish Parkway into Issaquah, ending at its intersection with State Route 900. SR 901 also had a spur leading from West Lake Sammamish Parkway into downtown Redmond along Redmond Way.

In 1971, SR 901 was broken into two parts. The western part, from SR 520 to the intersection of Redmond Way and West Lake Sammamish Parkway (including the spur into Redmond), was renamed State Route 908. The remainder retained the SR 901 designation, with one exception; West Lake Sammamish Parkway lost its state route designation from Exit 13 of Interstate 90 to its intersection with SR 900.

In 1992, SR 901's path was changed again; now it ran through the city of Sammamish along East Lake Sammamish Parkway from Front Street in Issaquah to State Route 202 east of downtown Redmond. Shortly thereafter, SR 901 was completely dropped as a state route in Washington.

State Route 908

State Route 908
Location:	Kirkland – Redmond
Existed:	1971–2010

Main article: Washington State Route 908

State Route 920

State Route 920
Location:
Existed:	1975–1985

Main article: Washington State Route 520

External links

• State Highways aka State Routes (SRs) – Highways of Washington State
• Chapter 47.17 RCW Dispositions – State highway routes – Washington State Legislature