SR 282 begins at an intersection with Basin Street, signed as SR 28, located within the city of Ephrata in Grant County. The highway travels southeast over a BNSF rail line south of Amtrak Station before leaving Ephrata and passing Ephrata Municipal Airport.[3][4] SR 282 continues southeast and ends at SR 17 southeast of Ephrata as SR 17 turns southeast towards Moses Lake.[5]
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 2011, WSDOT calculated that between 6,400 and 8,000 vehicles per day used the highway as a shortcut between Ephrata and Moses Lake.[6]
^Washington State Legislature (1951). "Chapter 273". Session Laws of the State of Washington (1951 ed.). Olympia, Washington: Washington State Legislature. Secondary state highway No. 11G; beginning in the vicinity of Eltopia on primary state highway No. 11, thence in a northwesterly direction to a junction with primary state highway No. 18 in the vicinity of Moses Lake, thence northwesterly to a junction with primary state highway No. 7 in the vicinity of Soap Lake with a wye connection from the vicinity of Rocky Ford creek to the vicinity of Ephrata.
^Ritzville, 1965(JPG) (Map). 1:250,000. United States Geological Survey. 1965. Retrieved February 4, 2013.