Explore details about location Seattle Pacific Raceways Road Course. Seattle Pacific Raceways Road Course is a location situated within the Lake Morton-Berrydale alongside other areas such as Southeast 306th Place, Southeast 303rd Street, Southeast 284th Street. Additionally, some smaller parts of Seattle Pacific Raceways Road Course include specific areas like 148th Way Southeast, 311th Avenue Southeast, 155th Avenue Southeast adding to the diversity of its landscape.