Description: This is the 2017 DFIRM Data for Base Flood Elevation lines (BFE). The Base Flood Elevation (BFE) which refers to the elevation associated with the 1% annual chance of flood occurrence in any given year. Please read metadata for additional information (https://matterhorn.piercecountywa.gov/GISmetadata/pdbswm_regulated_floodplain_bfe.html). Any use or data download constitutes acceptance of the Terms of Use (https://matterhorn.piercecountywa.gov/disclaimer/PierceCountyGISDataTermsofUse.pdf).