After each decennial census, FHWA requires state DOTs to use census data to review and update all federal Aid Urban Boundaries (FAUB) and the corresponding Functional Classification (FC) of public roads (Title 23, Section 103, USC). This statewide review gives local agencies the opportunity to place more of their roads on the federal aid highway system. The Road Inventory and Classification Services Unit is coordinating Oregon´s statewide review. This page will be updated regularly to provide maps, instructions, and other useful tools for completing this review.
These files can be used with ARC products and MicroStation. The Shape files have been grouped by Urbanized (population 50,000 and over) and Small Urban Areas (population 5,000-49,000). The CAD file contains both Urbanized and Small Urban Areas, statewide.
