Iowa DOT Traveler Information - 511

511 is an easy-to-remember traveler information telephone number. 511 will eventually replace and consolidate a proliferation of travel information telephone numbers around the country. 511 provides real-time updates about weather-related road conditions, road work, commercial vehicle restrictions, road closures and other events that impact traffic via the phone or Internet. Information from Iowa's 511 system is available 24 hours a day, seven days a week via wireless, landline or pay phone by dialing 511 within Iowa, or any phone by dialing 800-288-1047 nationwide. Drivers are encouraged to put safety first by asking a passenger to call 511, calling or logging onto 511ia.org prior to departure or placing the call at an appropriate stopping point along the way.