 State Route 523 | ||||
|---|---|---|---|---|
| 145th Street | ||||
 A map of northern Seattle with SR 523 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-5 | ||||
| Maintained by WSDOT | ||||
| Length | 2.45 mi[1] (3.94 km) | |||
| Existed | 1991[2][3]–present | |||
| Major junctions | ||||
| West end |  SR 99 in Seattle and Shoreline | |||
 I-5 in Seattle and Shoreline | ||||
| East end |  SR 522 in Seattle and Lake Forest Park | |||
| Location | ||||
| Country | United States | |||
| State | Washington | |||
| County | King | |||
| Highway system | ||||
| ||||
State Route 523 (SR 523, named 145th Street) is a short Washington state highway located on the city limits of Seattle, Shoreline, and Lake Forest Park in King County. The road itself runs 2.45 miles (3.94 km) east from SR 99 past Interstate 5 (I-5) and ends at SR 522; the highway was first established in 1991, but the roadway from I-5 to 5th Avenue Northeast was once the northern section of Secondary State Highway 1J from 1937 until 1964 and later SR 513 from 1964 until 1991.
- ^ Washington State Department of Transportation (2006). "State Highway Log: Planning Report, SR 2 to SR 971" (PDF). Retrieved June 12, 2009.
- ^ Washington State Legislature (1991). "RCW 47.17.727: State route No. 523". Retrieved June 12, 2009.
- ^ Washington State Legislature (1991). "Engrossed Senate Bill 5801, Chapter 342, Laws of 1991". Retrieved June 12, 2009.
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