US 30 leaves PORTLAND, 0 m. [West of Portland]. on NW. Vaughn St. and St. Helens Road, a part of the Lower Columbia Highway, and passes through a busy industrial district along Portland's lower harbor. Wharves line the Willamette River bank (R) and factories and warehouses occupy the river flats.
Wikipedia: National Register of Historic Places listings in Northwest Portland, Oregon
Wikipedia: National Register of Historic Places listings in Southwest Portland, Oregon