Drive shafts and half shafts, automotive, truck, and bus, manufacturing · Michigan

Warren Plant

Warren, MI · ~948 workers · 5 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.4
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

Warren Plant runs at 26% of its industry's injury rate - far safer than the typical Drive shafts and half shafts, automotive, truck, and bus, manufacturing workplace, earning a grade A.

Warren Plant: 1.4 TCR = 26% of Drive shafts and half shafts, automotive, truck, and bus, manufacturing BLS 5.4 · 5y Form 300A (see methodology below)

Warren Plant safety composite

Warren Plant scores strongest on total case rate (tcr) (safer than 77% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

C

69/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 1.39 per 100 workers

Safer than 77% of industry peers

DART rate
C 0.17 per 100 workers

Safer than 72% 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

−1.4

2018→2022

Warren Plant injury rate improved

Warren Plant's TCR fell 1.4 from 2.3 in 2018 to 0.9 in 2022. Peak filing year was 2018 at 2.3 TCR. In 2022, DART was 0.12× this establishment's average TCR (severity share of cases).

2018=2.3 · 2019=1.8 · 2020=1.3 · 2021=0.7 · 2022=0.9

OSHA ITA Form 300A scorecard

Establishment book 336350 · Warren, MI AT/BELOW-IND · MID

Grade A · TCR 1.4 · 26% of ind

  • DART 0.2 DART
  • RANK #16/61
  • PHOTO Toledo Facility
  • BOOK 5y book
  • INJ 75 inj
  • SIZE ~948 FTE

Nearest TCR peer: Toledo Facility (0.0 TCR gap)

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

Warren Plant in the TCR neighbourhood

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

TCR

What this shows Warren Plant averages 1.4 TCR (26% of the Drive shafts and half shafts, automotive, truck, and bus, manufacturing BLS benchmark).

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

Warren Plant TCR series: 2018=2.3 · 2019=1.8 · 2020=1.3 · 2021=0.7 · 2022=0.9 · BLS 5.4

Where Warren Plant falls in its industry

320 Drive shafts and half shafts, establishments

Safer than 77% of graded establishments in this industry, whose median TCR is 2.9.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #16 safest of 61 Drive shafts and half shafts, employers in Michigan.

Warren Plant (948 employees, TCR 1.4) among 29 same-industry peers, split at the industry median of 200 employees and a TCR of 2.9 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 01,0002,0003,0004,000 051015 Average employees Total Case Rate Warren Plant
Warren Plant (948 employees, TCR 1.4) among 29 same-industry peers, split at the industry median of 200 employees and a TCR of 2.9

Warren Plant has more employees than the Drive shafts and half shafts, automotive median and a lower injury rate than the industry's median TCR of 2.9. 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
2022 0.9 0.2 10 0 0
2021 0.7 0.2 8 0 0
2020 1.3 0.3 13 0 0
2019 1.8 0.1 20 0 0
2018 2.3 0.2 24 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336350 · MI · Warren

320 Drive shafts and half shafts, automotive, truck, and bus, manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 290 employers in Warren, MI · 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 Toledo Facility 1.4 TCR
NAICS-TCR General Machine & Saw Co. of IN 1.4 TCR
NAICS-TCR Aisin Chemical Indiana, LLC. 1.4 TCR
NAICS-TCR Kelsey-Hayes Company-Fenton 1.4 TCR
STATE-SIZE Howmet Aerospace Whitehall Operations- Whitehall Castings Plant 1 and 3 948 FTE
STATE-SIZE Brose New Boston INC. 949 FTE
STATE-SIZE Delta College 943 FTE
STATE-SIZE County of Berrien 943 FTE
CITY-NEAR Warren Technical Center 22,693 FTE
CITY-NEAR GM Global Technical Center 21,000 FTE
CITY-NEAR Warren Truck Assembly Plant 3,804 FTE
CITY-NEAR 1855-MIDET153 1,903 FTE
NAT-TCR Wisenbaker Builder Services - Dallas 1.4 TCR
NAT-TCR 3495-11DA547 1.4 TCR
NAT-TCR International Paper Wooster Container 1.4 TCR
NAT-TCR 12 Syracuse PS 1.4 TCR
NAT-SIZE Chobani ID Plant 948 FTE
NAT-SIZE Presence Mercy Medical Center 948 FTE
NAT-SIZE AO Smith Fairview Ave 948 FTE
NAT-SIZE IL Dept. of Revenue - Springfield 948 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: 2022, 2021, 2020, 2019, 2018. 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.