Washington State Route 153

State Route 153
Methow Valley Highway
SR 153 is highlighted in red.
Route information
Auxiliary route of US 97
Maintained by WSDOT
Length	30.78 mi[1] (49.54 km)
Existed	1964[2]–present
Tourist routes	Cascade Loop Scenic Byway
Major junctions
South end	US 97 in Pateros
North end	SR 20 near Twisp
Location
Country	United States
State	Washington
Counties	Okanogan
Highway system
State highways in Washington Interstate US State Scenic Pre-1964 1964 renumbering Former
← SR 150 → SR 155

State Route 153 (SR 153, named the Methow Valley Highway) is a 30.78-mile (49.54 km) long state highway in the U.S. state of Washington, serving as part of the Cascade Loop in Okanogan County. The Methow Valley Highway begins at an intersection with U.S. Route 97 (US 97) in Pateros at the confluence of the Methow River and the Columbia River. SR 153 travels northwest, parallel to the Methow River, to end at SR 20 south of Twisp. The highway was first established in 1897 as the Methow-Barron Road and was designated as various highways, including State Road 12 from 1905 to 1919, the Roosevelt Highway from 1919 to 1923, and Primary State Highway 16 (PSH 16) until the 1964 highway renumbering, when it became SR 153.