State Route 507 | ||||
|---|---|---|---|---|
 SR 507 is highlighted in red. | ||||
| Route information | ||||
| Auxiliary route of I-5 | ||||
| Maintained by WSDOT | ||||
| Length | 43.52 mi[1] (70.04 km) | |||
| Existed | 1964[2]–present | |||
| Major junctions | ||||
| South end |   I-5 / US 12 in Centralia | |||
 SR 510 in Yelm SR 702 in McKenna | ||||
| North end |  SR 7 in Spanaway | |||
| Location | ||||
| Country | United States | |||
| State | Washington | |||
| Highway system | ||||
| ||||
State Route 507 (SR 507) is a Washington state highway in Lewis, Thurston and Pierce counties that extends 43.52 miles (70.04 km) from Interstate 5 (I-5) and U.S. Route 12 (US 12) in Centralia to SR 7 in Spanaway. The highway also intersects SR 510 in Yelm and SR 702 in McKenna. The first appearance of the roadway on a map was in 1916 and since, two highways, Secondary State Highway 5H (SSH 5H) and SSH 1N, were established on the current route of SR 507 in 1937 and 1943. They both became SR 507 during the 1964 highway renumbering.
- ^ Washington State Department of Transportation (2008). "State Highway Log: Planning Report, SR 2 to SR 971" (PDF). Retrieved July 17, 2009.
- ^ Washington State Legislature (1964). "RCW 47.17.670: State route No. 507". Retrieved July 17, 2009.