Illinois
Illinois
Explore damage prevention information, local contacts and rules for safe digging in Illinois.
One Call Centers
811 or1-800-892-0123
Address:
3275 Executive DriveJoliet IL 60431
Hours:
24 / 7Advance Notice:
48-hour notice (two working days), but no more than a 14-calendar day advance notice prior to the start of excavationNumber of days in advance of a digging project that you need to notify the one call center of your intent to dig.
Marks Valid:
28 Calendar DaysDefines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
