# $POTHOLE · Pothole complaints in Chicago

Pothole complaints made to Chicago's 311 service in a month, streets and alleys together (service codes PHF, Pothole in Street Complaint, and PHB, Alley Pothole Complaint), by the date each was made. Every complaint counts, duplicates included. Counted from February 2019, the first month the file holds pothole complaints at their usual volume: a few hundred a month in late 2018, 1,406 in January 2019, 9,950 in February.

| Field | Value |
| --- | --- |
| Newest complete period | Oct 2026: 4,211 complaints, score 0, Quiet |
| Source | City of Chicago, 311 Service Requests, service codes PHF and PHB (https://data.cityofchicago.org/d/v6vf-nfxy) |
| Terms | City of Chicago Data Terms of Use: derivative use is allowed with the city's disclaimer on the page. |
| Cadence | Monthly. 311 posts complaints within a day; a month prints three days after it ends. |
| Grade | display |
| Rulebook | Rulebook v0.2, 2026-10-04 |

## Settlement

Why this grade: Complaints, not holes: one bad block brings many calls. Shown, not settled on.
What it costs to move: Cheap in small numbers. A complaint is a phone call or a web form.
When the source is late: A month prints three days after it ends. If 311 posts nothing for the month, it stays open. A month 311 never posts is void.
Precision: Whole complaints with service code PHF or PHB, by created date, Chicago time as the city records it.

## As first published, and the proof

Not on-chain yet. The newest complete period goes on-chain with the daily proof at 12:40 UTC.

## Last 30 complete periods

| Period | Level | Change | Band |
| --- | ---: | ---: | --- |
| Oct 2026 | 4,211 complaints | -11.4% | Quiet |
| Sep 2026 | 4,753 complaints | -12.5% | Quiet |
| Aug 2026 | 5,433 complaints | -5.0% |  |
| Jul 2026 | 5,718 complaints | +1.1% |  |
| Jun 2026 | 5,658 complaints | -28.3% |  |
| May 2026 | 7,887 complaints | -37.0% |  |
| Apr 2026 | 12,523 complaints | +25.2% |  |
| Mar 2026 | 10,002 complaints | +50.5% |  |
| Feb 2026 | 6,647 complaints | +10.0% |  |
| Jan 2026 | 6,041 complaints | +135.5% |  |
| Dec 2025 | 2,565 complaints | +49.6% |  |
| Nov 2025 | 1,714 complaints | -25.5% |  |
| Oct 2025 | 2,302 complaints | -16.0% |  |
| Sep 2025 | 2,740 complaints |  |  |

JSON: https://tickerz.com/api/indices/pothole

## Asked often

**How many potholes are reported in Chicago?** 4,211 pothole complaints, streets and alleys, were made to Chicago's 311 service in Oct 2026, counted by Tickerz from the city's open data.

**Where does the $POTHOLE number come from?** Tickerz reads it from City of Chicago, 311 Service Requests, service codes PHF and PHB. Monthly. 311 posts complaints within a day; a month prints three days after it ends. Each number is kept as it was first published, with a timestamped proof, and any later revision is shown beside it.

**Can I download the $POTHOLE data?** Yes, free and with no key: the full history as JSON at https://tickerz.com/api/indices/pothole and every period as CSV at https://tickerz.com/api/indices/pothole/history.csv.

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