| The Illinois State
Highway Authority (ISTHA) operates separately from The Illinois One-Call
System. Excavators working near ISTHA facilities are required to
contact them four (4) business day prior to the start of their excavation
project in order for ISTHA to mark their buried facilities.
 You can download a copy of ISTHA's
Locate Request Form
here.
All completed request forms should be faxed to the
Utility
Permit Section at 630/271-7568. Excavators are still required to
contact JULIE two (2) working days in advance of their project so that all
other utilities in the area can be notified.
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