Utility Dig Notifications (811) | Enigma Gov Archive

Chicago Department of Transportation (CDOT)

The Chicago Department of Transportation (CDOT), Division of Infrastructure Management (DIM), operates Chicago’s “One Call” service—known as “811 Chicago.”

Example records

Hit Report No	Hit Date	Hit Report Status	Notice Type	Related Dig Ticket #	Street Address	Facility Hit	Facility Owner	Reported By Name	Hit By Name
601657441	02/24/2025 09:30:00 AM	Approved	Initial ticket	601651245	5837 S SHIELDS AVE	GAS SERVICE	Peoples Gas*	DWM	DWM
601643193	12/23/2024 09:25:00 AM	Complete	Update ticket	601642187	3046 W LOGAN BLVD	ELECTRIC CABLE	ComED North*	DWM	DWM
601519171	03/26/2024 07:00:00 AM	Canceled	Initial ticket		3050 S MOE DR	WATER MAIN	City of Chicago (CoC)	RAUSCH CONSTRUCTION, INC.	Unknown/Not in system

Use cases

Property Underwriting Hazard Scoring

A commercial property insurer scores addresses under consideration for new policies by checking whether the location or surrounding block has a history of utility strikes, particularly gas line hits, which signal elevated subsurface risk and potential for future claims.

Street Address	Facility Hit	Facility Owner	Hit Date	Hit Report Status

Contractor Liability Pattern Detection

A surety bond underwriter evaluating a construction firm checks whether the company appears repeatedly as the party responsible for utility hits across multiple dig tickets, which would indicate a pattern of negligent excavation practices before issuing a new bond.

Hit By Name	Related Dig Ticket #	Facility Hit	Hit Date	Street Address

Utility Vendor Incident Exposure Monitoring

A financial analyst covering municipal utility operators tracks how frequently a specific utility company's infrastructure is being struck across the city, using incident volume and facility type to assess operational exposure and maintenance liability that may not appear in public filings.

Facility Owner	Facility Hit	Hit Date	Hit Report Status	Street Address