City of DetroitGeographic boundaries and plan details for each of the City of Detroit's three current Board Authorities: Downtown Development Authority; Local Development Finance Authority; Corridor Improvement Authority. New authorities are created only through City Council resolution. Last updated May 2018.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/3154236bc5184a7faa2941f7b7f793e7_0engDetroit Open DataPublicBoard Authorities [Michigan--Detroit]Web servicesMichigan--DetroitMichiganLast Modified: 2024-11-18