City of Portland, OregonLines 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=52783ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/27ad348e291547c0929f16ffcf49a12b_73engPortlandMaps Open DataPublicGuardrails [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2026-01-08