Washington State Route 702

State Route 702 (SR 702) is a 9.32 mi long two-lane state highway located entirely in Pierce County, Washington, United States. The highway travels through rural Pierce County, and has existed since at least 1931 as State Highway 10, then as Secondary State Highway 5J until the 1964 state highway renumbering when it was renumbered to SR 702. The roadway the highway is routed along, continues east to an interchange with SR 161.

Route description
State Route 702 (SR 702) starts at a t intersection with SR 507, east of McKenna Elementary School, headed easterly along 352nd Street. The highway travels through sections of lightly populated rural Pierce County, with sections of alternating houses and small sections of heavily wooded land. The highway terminates at SR 7, however the roadway continues east past the intersection. The entire route is a two lane undivided highway with a 55 mph speed limit posted.

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 annual average daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2009, WSDOT calculated that as few as 4,400 cars traveled over the highway at the eastern terminus at SR 7, and as many as 8,600 cars at the western terminus at SR 507.

History
The roadway linking McKenna to now SR 7 has existed since at least 1931, then designated State Highway 10, and by 1939 the highway designation had been changed to Secondary State Highway 5J (SSH 5J). This number remained until the 1964 state highway renumbering, where the number was changed to the current SR 702. The highways SR 702 have connected to also been renumbered over the years, the western highway being numbered SSH 5H, and the highway on the east was formerly designated Primary State Highway 5.

In February 2010, Representative Tom Campbell secured funding to install a traffic light at the eastern terminus, claiming it "will save lives and support jobs." Two roundabouts are planned to be built in 2024 to replace existing uncontrolled intersections at Harts Lake Road and 40th Avenue.