Hanyar hanya ta wuce ta arewacin ƙarshen Joint Base Lewis-McChord (tsohon Fort Lewis da McChord Air Force) da Tacoma, inda ta sake juyawa zuwa arewacin Seattle. Hanyar jirgin ruwa tana ɗauke da ita a kan Kogin BC a Seattle. Hanyar jirgin ruwa ta ci gaba da rufe arewacin Kogin Columbia ta hanyar Woodland zuwa Kelso da Longview, a wannan lokacin ta daina yin daidai da babban rafin Kogin Columbia. Ci gaba da arewacin tsakanin Willapa Hills da Cascade Foothills, babbar hanya daga ƙarshe ta isa Olympia, inda ta lanƙwasa gabashin gabas.
Birnin Seattle