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This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

811 Chicago Utility Hit Tickets

Metadata Updated: January 18, 2026

Chicago Department of Transportation (CDOT), Division of Infrastructure Management (DIM), operates Chicago’s “One Call” service—known as “811 Chicago.” Per Municipal Code of Chicago (MCC) § 10-21-080, “in the event of damage to any underground facilities, the person responsible for the damage shall immediately notify…811 Chicago.”

811 Chicago records all reported damages as “hit tickets.” This dataset contains hit tickets since January 1, 2020. (Prior to that date, hit tickets data is a less reliable measure of utility damages.)

Please note, a hit ticket does not necessarily mean damage occurred or implicate the parties listed on the hit ticket as having caused the damage. For example, an excavator may report damage they discovered, but did not cause; an entity may incorrectly report the utility that was damaged or who caused the damage; the same damage may be reported by more than one entity. 811 Chicago investigates all reported damages to determine if there was a violation of MCC § 10-21. During the course of its investigation, 811 Chicago will confirm the information on the hit ticket. If 811 Chicago discovers inaccurate information, it may not update the hit ticket. The data related to 811 Chicago’s investigation is not exposed in this data set. Importantly, 811 Chicago does not determine which entity is liable for the damage, and the “hit by” field does not indicate that the individual or entity caused the damage or violated MCC § 10-21.

Access & Use Information

Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

Downloads & Resources

Dates

Metadata Created Date September 23, 2022
Metadata Updated Date January 18, 2026

Metadata Source

Harvested from Chicago JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date September 23, 2022
Metadata Updated Date January 18, 2026
Publisher data.cityofchicago.org
Maintainer
Identifier https://data.cityofchicago.org/api/views/nphj-5zur
Data First Published 2022-09-15
Data Last Modified 2026-01-17
Category Transportation
Public Access Level public
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.cityofchicago.org/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 66a710b0-9f98-4147-96ed-f7e7a0829ea8
Harvest Source Id 7590e386-229e-453a-8e53-6f18e200e421
Harvest Source Title Chicago JSON
Homepage URL https://data.cityofchicago.org/d/nphj-5zur
Source Datajson Identifier True
Source Hash 338be458d7c60c8ed111ad7cd082b578b02ac10b1c7b85e91d279c4f789cccd5
Source Schema Version 1.1

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