From Willows and the intersection of Interstate 5, SR 162 runs east for to the town of Glenn. The track of SR 162 turns right and follows State Route 45 south for along the bank of the Sacramento River to Codora. The highway then turns left going east, crosses the Sacramento River and enters the town of Butte City. The highway jogs north as it passes through Butte City, then east again going due east to meet State Route 99 (formerly U.S. Route 99). This section is called the Butte City Highway. SR 162 turns north along SR 99 then east again as Oroville Dam Boulevard.