City of Portland, OregonThe farthest extent of the land area comprised of the FEMA Special (100 year) Flood Hazard Area, the Modeled Willamette River 1996 Flood Extent, and the Metro Title 3 1996 Flood Inundation Area, for areas not included in the Modeled Willamette River 1996 Flood Extent. -- Additional Information: Category: Zoning Code Purpose: Reference layer for Title33 Planning and Zoning. Replaces prior references to FEMA 100-year floodplain in Title 33 prior to March 1, 2024. Different regulations are applied within the extent of this combined area. Update Frequency: As Needed -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=61133ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/0b9e0612180c4661ab9042f1a18f6948_1417engPortlandMaps Open DataPublicTitle 33 Combined Flood Hazard Area [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2024-09-12