Iowa Department of TransportationDisplays all counties in the state of Iowa color coded according to All Systems Permit restictions. Check with local officials when traveling on county roads or city streets for bridge embargo, detour, road embargo and vertical clearance information. State and interstate highways are valid routes except for restrictions listed on the bridge embargo, detour and road embargo, and vertical clearance maps located at http://www.iowadot.gov/mvd/omcs/omcsMaps.htm. Map is based off a query layer connection to TGIMS All Systems Permit information.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/6b1b4660694e4e698164e7d9d6bf22ce_0engIowaDOT Open DataPublicAllSystemsPermit [Iowa]Web servicesIowaLast Modified: 2020-01-17