List of former state routes in Washington

State Route 30 was a state highway in the U.S. state of Washington, running from Tonasket to Tiger. In 1973, the highway was renumbered as part of State Route 20.

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.

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

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 (at Dayton), then headed east to US 12 again (near Pomeroy), 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. The approximate route follows Patit Road, Hartstock Grade Road, Tucannon Road, Blind Grade Road, Linville Gulch Road, and Tatman Mountain Road.

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

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, and replaced by the Chumstick Highway.

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 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 407 was an auxiliary route of SR 4 that connected Cathlament to Elochoman State Forest. It was previously designated as SSH 12D prior to the 1964 renumbering and was removed as a state highway in 1992.[1]

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.

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.

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.

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.

Effective April 1, 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. In June, SR 901 was completely dropped as a state route in Washington.

State Route 920 (SR 920) was the temporary designation for a section of SR 520 bypassing downtown Redmond. It was created in 1975 and opened in July 1977, connecting SR 901 to SR 202.[3][4] Four years after the missing link in SR 520 was completed in 1981,[5] SR 920 was deleted from the state highway system.[6]

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