Cook County Department of Transportation and Highways

Cook County Government

69 West Washington Street, suite 2400, Chicago, IL 60602
Transportation regulatory agencies (NAICS 926120)

DART 5.63 28 recordable cases · 239 avg employees · 497,120 hours worked

This establishment vs. the industry

The DART rate at this establishment is about 2.6× the industry median.

This establishment: 5.63
Industry median (Public transportation commissions, nonoperating, n=82): 2.19

Reported injury and illness, 2024

Fatalities0 Days-away-from-work cases14 Restricted-duty / transferred cases0 Other recordable cases14 Total recordable cases28 Days lost to injury1,347

Injury rates (per 100 FTE-year, OSHA standard)

DART rate5.63 (days away + restricted/transferred) DAFW rate5.63 (days away from work only) Total recordable rate (TRIR)11.26 (all OSHA-recordable cases) Annual average employees239 Total hours worked497,120
What these numbers mean. An OSHA-recordable case is a work-related injury or illness that resulted in death, days away from work, restricted work, transfer to another job, medical treatment beyond first aid, loss of consciousness, or significant injury diagnosed by a physician. DART rate is the OSHA-standard incidence measure — calculate it as (cases with days away + restricted/transferred) × 200,000 / hours worked. The 200,000 hours normalizes to 100 full-time-equivalent workers over a year. National average DART across all industries is around 1.7; high-risk industries (skilled nursing, warehousing, courier) routinely exceed 5.

Source: OSHA ITA 300A Summary Data, calendar year 2024 filings (downloaded 2026-05-23).

OSHA Lookup · workplace-injury data from OSHA ITA 300A 2024 · About / methodology