Mixed Mode Transit Systems · Illinois

4125 Ironworkers

Chicago, IL · ~73 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
10.3
Avg TCR
4.5
Industry avg
0
Fatalities
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The verdict

4125 Ironworkers runs at 230% of its industry's injury rate - far more dangerous than the typical Mixed Mode Transit Systems workplace, earning a grade F.

4125 Ironworkers: 10.3 TCR = 230% of Mixed Mode Transit Systems BLS 4.5 · 2y Form 300A (see methodology below)

4125 Ironworkers safety composite

4125 Ironworkers scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 19%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

32/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 10.35 per 100 workers

Safer than 19% of industry peers

DART rate
F 6.13 per 100 workers

Safer than 32% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−6.4

2023→2024

4125 Ironworkers injury rate improved

4125 Ironworkers's TCR fell 6.4 from 13.5 in 2023 to 7.2 in 2024. Peak filing year was 2023 at 13.5 TCR. In 2024, DART was 0.59× this establishment's average TCR (severity share of cases).

2023=13.5 · 2024=7.2

OSHA ITA Form 300A scorecard

Establishment book 485111 · Chicago, IL ABOVE-IND · SMALL

Grade F · TCR 10.3 · 230% of ind

  • DART 6.1 DART
  • RANK #100/137
  • PHOTO 1953-1131
  • BOOK 2y book
  • INJ 19 inj
  • SIZE ~73 FTE

Nearest TCR peer: 1953-1131 (0.0 TCR gap)

Read with this employer → · Industry book → · Illinois employers → · Look up another →

4125 Ironworkers in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows 4125 Ironworkers averages 10.3 TCR (230% of the Mixed Mode Transit Systems BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

4125 Ironworkers TCR series: 2023=13.5 · 2024=7.2 · BLS 4.5

Where 4125 Ironworkers falls in its industry

421 Mixed Mode Transit Systems establishments

Safer than 19% of graded establishments in this industry, whose median TCR is 5.8.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #100 safest of 137 Mixed Mode Transit Systems employers in Illinois.

4125 Ironworkers (73 employees, TCR 10.3) among 29 same-industry peers, split at the industry median of 217 employees and a TCR of 5.8 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,500 05101520 Average employees Total Case Rate 4125 Ironworkers
4125 Ironworkers (73 employees, TCR 10.3) among 29 same-industry peers, split at the industry median of 217 employees and a TCR of 5.8

4125 Ironworkers has fewer employees than the Mixed Mode Transit Systems median and a higher injury rate than the industry's median TCR of 5.8. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 7.2 6.1 7 0 0
2023 13.5 12.4 12 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

485111 · IL · Chicago

421 Mixed Mode Transit Systems employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 2,934 employers in Chicago, IL · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR 1953-1131 10.3 TCR
NAICS-TCR 4092 MACHINISTS 10.4 TCR
NAICS-TCR 1151 KEDZIE SCHEDULED TRANSIT OPERATIONS 10.3 TCR
NAICS-TCR Division 14 10.4 TCR
STATE-SIZE SouthEastern Illinois Electric Cooperative 73 FTE
STATE-SIZE AMEREN ILLINOIS - Gas Tech - Operations 73 FTE
STATE-SIZE Civil Constructors Inc Moline Structures Divison 73 FTE
STATE-SIZE Standard Sheet Metal Works, Inc 73 FTE
CITY-NEAR Chicago Public Schools 49,500 FTE
CITY-NEAR Chicago/Corporate 18,831 FTE
CITY-NEAR University of Illinois at Chicago 13,092 FTE
CITY-NEAR University Health Service UIC UIC Campus 12,732 FTE
NAT-TCR Wccs-Mchs-640 Old Cain Ridge Road 10.3 TCR
NAT-TCR Charlottesville - Police 10.3 TCR
NAT-TCR 204 Virginia Beach 10.3 TCR
NAT-TCR Exmoore IRA 10.3 TCR
NAT-SIZE H C Trucking Inc 73 FTE
NAT-SIZE Rosauers Supermarkets, Inc., #2 73 FTE
NAT-SIZE OLEAN 73 FTE
NAT-SIZE Trinity Manor 73 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.