The
U.S. state of
Washington
Washington commonly refers to:
* Washington (state), United States
* Washington, D.C., the capital of the United States
** A metonym for the federal government of the United States
** Washington metropolitan area, the metropolitan area centered o ...
has over of
state highway
A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...
s maintained by the
Washington State Department of Transportation (WSDOT).
The highway system is defined through acts by the
state legislature
A state legislature is a legislative branch or body of a political subdivision in a federal system.
Two federations literally use the term "state legislature":
* The legislative branches of each of the fifty state governments of the United Sta ...
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
The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these hi ...
are also defined as part of the state route system, but are omitted from this list.
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State routes
Special routes
WSDOT does not maintain
business route
A business route (or business loop, business spur, or city route) in the United States is a short special route connected to a ''parent'' numbered highway at its beginning, then routed through the central business district of a nearby city ...
s, which are instead created and signed by local jurisdictions.
References
{{Washington places
*
State routes