Washington State Route 102

State Route 102
Dayton Airport Road
SR 102 is highlighted in red.
Route information
Auxiliary route of US 101
Defined by RCW 47.17.168
Maintained by WSDOT
Length:	2.86 mi (4.60 km)
Existed:	1984 – present
Major junctions
West end:	Washington Corrections Center
East end:	US 101 near Shelton
Location
Counties:	Mason
Highway system
State highways in Washington Interstate US State Scenic Former PSH 1964 renumbering Former ← US 101 SR 103 →

State Route 102 (SR 102) is a 2.86-mile-long (4.60 km) state highway serving the Washington Corrections Center and Washington State Patrol Academy in the U.S. state of Washington. The highway extends northeast and east as Dayton Airport Road from the Washington Corrections Center through rural Mason County to an intersection with U.S. Route 101 (US 101) northwest of Shelton. SR 102 was established in 1984 on an unpaved roadway that was built by the 1950s.

SR 102 begins as the two-lane Dayton Airport Road at an intersection with the Washington Corrections Center access road and travels northeast into a heavily wooded area. The highway turns east and passes the Washington State Patrol Academy before ending at an intersection with US 101 north of Sanderson Field and west of Turtle Lake. The entire highway is located northwest of Shelton in unincorporated Mason County.

Every year, the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2011, WSDOT calculated that between 2,000 and 4,100 vehicles per day used the highway, mostly at the US 101 intersection.