Last Driven April 2015 MP: 81 Location: I-5 and Mellen St, Centralia Reassurance shield after SR 507 (Historic Photo: September 2008) MP: I-5/81.32 Location: I-5 and Mellen St, Centralia The old reassurance shield after SR 507, omitting US 12. MP: I-5/78.96 Location: I-5 and Chamber Way, Chehalis JCT SR 6 coming up in one mile (Historic … Continue reading U.S. Route 12, SR 507 to SR 6