Description: Minimum footing depth polygons intended to be a guide to the structural requirements necessary due to frost levels in unincorporated Pierce County. Please read metadata for additional information (https://matterhorn.co.pierce.wa.us/GISmetadata/pdbis_minimum_footing_depth.html). Any data download constitutes acceptance of the Terms of Use (https://matterhorn.co.pierce.wa.us/Disclaimer/PierceCountyGISDataTermsofUse.pdf).