811 Chicago (Digger):
Please visit our updated digger site at https://ipi.cityofchicago.org/Digger
Dig Site Notification Procedures - What should I do?
Notify DIGGER at 811 or 312.744.7000 if you experience any of the following unforeseen issues at your dig site:
When you call DIGGER, please be prepared to provide the following information: