Coons also connected on a 45-yard kick, while Bishop Sankey carried the ball 25 times for 92 yards and two touchdowns for Washington (4-4, 2-3 Pac-12), which snapped a three-game losing streak.
Keith Price went 18-for-30 through the air for 194 yards and an interception in the win.
Sean Mannion completed 18-of-34 passes for 221 yards and a touchdown, but was intercepted four times for the Beavers (6-1, 4-1), who were denied their first 7-0 start in school history.
Cody Vaz replaced Mannion in the fourth quarter and threw for 97 yards and a score on 7-of-11 efficiency.
Brandin Cooks caught nine balls for 123 yards and a touchdown, while Storm Woods had 90 yards on 15 carries for Oregon State.
10/28 01:49:58 ET