Interstate 82 ( I-82 ) is a 143.58-mile ( 231.07 km ) Interstate Highway that extends from I-90 in Ellensburg , Washington , to I-84 near Umatilla , Oregon , in the United States .
Interstate 82 ( sometimes called I-82 ) is a 143.58 miles ( 231.07 km ) long Interstate Highway in the states of Washington and Oregon .