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    Image Title  Abstract Category Last Updated
    1996 Flood Extent This data is maintained by and obtained from Metro GIS. Click the link above to view the Metro GIS metadata for this dataset. Hazard 11/09/18 08:03 PM
    Deep Landslide Susceptibility, Multnomah County This layer is a deep landslide susceptibility map. The symbology on this map includes high and moderate susceptibility zones. The deep susceptibility zones were established based upon location and proximity to deep landslide deposits and head scarps, buffers along the landslide head scarps, susceptible geologic units, slope angles, and mapper judgement following protocol developed by Burns (2008). Hazard 05/31/18 07:05 AM
    Earthquake Hazards (Clark County, WA) This data is maintained by and obtained from Clark County, WA GIS. Click the link above to view the Clark County GIS metadata for this dataset. Hazard 10/13/11 04:26 PM
    Earthquake Hazards (Clark County, WA) This data is maintained by and obtained from Clark County, WA GIS. Click the link above to view the Clark County GIS metadata for this dataset. Hazard 10/13/11 04:26 PM
    faults_bes_dogami Hazard 04/04/11 03:11 PM
    FEMA 100-year Floodplain Areas identified by the Federal Emergency Management Agency (FEMA) as having a 1% annual chance of flooding. Known as the "Special Flood Hazard Area" (SFHA), which is also commonly referred to as the 100-year floodplain. Based on November 2010 FEMA maps, with subsequent "Letters of Map Revision" (LOMR) information incorporated as approved by FEMA. Hazard 06/10/16 03:47 PM
    FEMA 500-year Floodplain Areas identified by the Federal Emergency Management Agency (FEMA) to have a 0.2% annual chance of flooding. Commonly known as the 500-year floodplain. Hazard 06/10/16 03:47 PM
    FEMA Flood Hazard Areas The FEMA Flood Hazard Layer represents the location and attributes of flood insurance risk zones from the Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any Letters of Map Revision (LOMRs) that have been issued against those databases since their publication date. It is updated on a monthly basis. The FIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper FIRMs. The FIRM Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The floodway, 100-year floodplain/SFHA (Special Flood Hazard Area), and the 500-year floodplain are all derived from this dataset. Hazard 11/09/18 08:04 PM
    FEMA Floodway FEMA Floodway. Based on November 2010 FEMA maps, with subsequent "Letters of Map Revision" (LOMR) information incorporated as approved by FEMA. Hazard 08/14/15 09:48 AM
    Final dFIRM Flood Data (Clark County, WA) This data is maintained by and obtained from Clark County, WA GIS. Click the link above to view the Clark County GIS metadata for this dataset. Hazard 10/18/18 03:43 PM

       
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