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:

• Utility "No-Show" or no direct contact
• Incomplete Utility markings
• The work site requires a refresh/remarking of utilities
• Unidentifiable facilities during excavation
• Excavation damage to an underground facility - Notify owner of damaged facility immediately

When you call DIGGER, please be prepared to provide the following information:

• The City of Chicago Permit number assigned by Construction Compliance (if applicable)
• The Dig number assigned to the work site
• Your agency name and address
• An on-site contact name, phone, cell, and fax numbers
• Site location address where excavation or demolition has taken place
• Type of facility damaged (if applicable).