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All state highways are designated by the Washington State Legislature and codified in the Revised Code of Washington (RCW), namely Chapter 47.17 RCW. These routes are defined generally by termini and points along the route; WSDOT may otherwise choose the details, and may bypass the designated points as long as the road serves the general vicinity.
This is a map of the state highways in Washington as they existed in 1970, just before the old primary-secondary split was removed. Primary routes are red and secondary routes are purple. Thin orange is just current routes. Email me if you would like a copy of the GIS data I created for the highways. Date: 2 April 2008 (original upload date) Source
A number of Primary State Highways were designated, while Secondary State Highways were suffixed spurs off those. For instance, Primary State Highway 1 was the Pacific Highway (present Interstate 5), and Secondary State Highway 1B was a spur from Bellingham to the Canadian border (now State Route 539). U.S. Routes kept dual designations with ...
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 United States Numbered Highway System was approved and established on November 11, 1926 by the American Association of State Highway Officials (AASHO) and included eleven routes traveling through Washington. [1] [3] In 1961, the state introduced a set of route markers in Olympia that were colored based on destination and direction rather ...
In addition to the state scenic highways system, several routes in Washington are designated as National Scenic Byways and All-American Roads. [23] Cascade Loop National Scenic Byway (2021) [24] Chinook Scenic Byway (1998), an All-American Road [25] Coulee Corridor Scenic Byway (2005) [26] International Selkirk Loop (2005), an All-American Road ...
This image is a work of a United States Department of Transportation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government , the image is in the public domain .
This is a map of the state highways in Washington. Email me if you would like a copy of the GIS data I created for the highways. Date: 27 March 2008 (original upload date) Source: No machine-readable source provided. Own work assumed (based on copyright claims). Author: No machine-readable author provided. NE2 assumed (based on copyright claims).