Pierce County, WashingtonMinimum footing depth polygons intended to be a guide to the structural requirements necessary due to frost levels in unincorporated Pierce County. Please read the metadata ( https://matterhorn.piercecountywa.gov/GISmetadata/pdbis_minimum_footing_depth.html ) for additional information. Any data download constitutes acceptance of the Terms of Use ( https://matterhorn.piercecountywa.gov/disclaimer/PierceCountyGISDataTermsofUse.pdf ) .ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/5054b113f92f48aa9fe14641fddcc6aa_0engPierce County Open GeoSpatial Data PortalPublicMinimum Footing Depth [Washington (State)--Pierce County]Web servicesWashington (State)--Pierce CountyWashington (State)Last Modified: 2015-02-05