Cook_County_GISCreated for all users to view and understand transportation modes within Cook County. GIS department maintains all GIS feature with ETSB & DOTH updating street feature. Service published in 2016. Data is updated as needed. Street midlines are set to display at 1:35,000 in ArcGIS Online.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/4569d77e6d004c0ea5fada54640189cf_5engCook CentralPublicStreets [Illinois--Cook County]Web servicesIllinois--Cook CountyIllinoisLast Modified: 2025-12-02