MP: 61.37 Location: W Cowlitz Way and N Pacific Ave, Kelso Right lane for I-5. We approach former SR 431 as well, a good way to get to I-5 North   MP: 61.51 Location: Cowlitz Way and 4th Ave N, Kelso SR 4 follow the TO I-5 signs, turning right on 4th Ave N   … Continue reading State Route 4, SR 411 to I-5