20210304 07451600 1.0 TRUE Guardrails Lines representing protective guardrails in Portland. The types of guardrails include concrete barriers, post cables, flex beams, and rock barriers. The attribute information includes asset ownership, maintenance information, and details about the type of barriers and hazard that they are guarding against. --Additional Information: Category: Transportation - Assets Purpose: For mapping and analysis of guardrails in Portland. Update Frequency: As Needed -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52783 Bureau of Transportation