The Portland Bureau of Transportation (PBOT) has been collaborating with property owners, neighborhood associations and other stakeholders to improve the confusing names of streets in the Columbia/Lombard Corridor in North and Northeast Portland. The Columbia Lombard Wayfinding Project received Planning & Sustainability Commission approval in September 2019 and Portland City Council approval in July 2020.

The Bureau of Development Services (BDS) is responsible for maintaining a record of building addresses per Portland City Code Chapter 24, consisting of the number, prefix, street name and street type (ex. 123 NE Fake St). Columbia Lombard Wayfinding Project address and street name changes will occur effective May 2, 2022.

BDS does not maintain exhaustive records of unit numbers, apartment numbers, suite numbers, slip numbers, etc. (hereafter referred to as "unit numbers") that sometimes follow a street address, except in limited cases. While many street addresses are changing as a part of the Columbia Lombard Wayfinding Project, the unit number portion of each address is not being affected. For addresses with unit numbers within the Columbia Lombard Wayfinding Project boundary, only the street address portion of each address is changing. Unit number addresses represented in the list below are provided for informational purposes only. The presence of a unit number address in this report does not designate any meaning in terms of the legality or permitted status of the unit address.