Ready-mix concrete manufacturing and distributing · Michigan

Superior Materials Holdings LLC

Farmington, MI · ~226 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
6.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Superior Materials Holdings LLC runs at 185% of its industry's injury rate - more dangerous than the typical Ready-mix concrete manufacturing and distributing workplace, earning a grade D.

Superior Materials Holdings LLC: 6.1 TCR = 185% of Ready-mix concrete manufacturing and distributing BLS 3.3 · 2y Form 300A (see methodology below)

Superior Materials Holdings LLC safety composite

Superior Materials Holdings LLC scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 27%), 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).

D

35/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 6.09 per 100 workers

Safer than 33% of industry peers

DART rate
F 5.28 per 100 workers

Safer than 27% 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

−272.3

2023→2024

Superior Materials Holdings LLC injury rate improved

Superior Materials Holdings LLC's TCR fell 272.3 from 278.4 in 2023 to 6.1 in 2024. Peak filing year was 2023 at 278.4 TCR. In 2024, DART was 0.87× this establishment's average TCR (severity share of cases).

2023=278.4 · 2024=6.1

OSHA ITA Form 300A scorecard

Establishment book 327320 · Farmington, MI ABOVE-IND · MID

Grade D · TCR 6.1 · 185% of ind

  • DART 5.3 DART
  • RANK #29/43
  • PHOTO 50-51
  • BOOK 2y book
  • INJ 24 inj
  • SIZE ~226 FTE

Nearest TCR peer: 50-51 (0.0 TCR gap)

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

Superior Materials Holdings LLC in the TCR neighbourhood

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

TCR

What this shows Superior Materials Holdings LLC averages 6.1 TCR (185% of the Ready-mix concrete manufacturing and distributing BLS benchmark).

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

Superior Materials Holdings LLC TCR series: 2023=278.4 · 2024=6.1 · BLS 3.3

Where Superior Materials Holdings LLC falls in its industry

1,316 Ready-mix concrete manufacturi establishments

Safer than 33% of graded establishments in this industry, whose median TCR is 4.5.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #29 safest of 43 Ready-mix concrete manufacturi employers in Michigan.

Superior Materials Holdings LLC (226 employees, TCR 6.1) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5 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 0100200300400500 051015 Average employees Total Case Rate Superior Materials Holdings LLC
Superior Materials Holdings LLC (226 employees, TCR 6.1) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5

Superior Materials Holdings LLC has more employees than the Ready-mix concrete manufacturing and dis median and a higher injury rate than the industry's median TCR of 4.5. 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 6.1 5.3 15 0 0
2023 278.4 148.5 9 6 0

OSHA ITA peer cross-reference

Establishment peer ledger

327320 · MI · Farmington

1,316 Ready-mix concrete manufacturing and distributing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 35 employers in Farmington, 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 50-51 6.1 TCR
NAICS-TCR INGRAM READYMIX, INC. - PEARLAND #35 6.1 TCR
NAICS-TCR AMSTERDAM BLOCK PLANT 6.1 TCR
NAICS-TCR Alsip Yard 205 6.1 TCR
STATE-SIZE Wyoming 3300 Manufacturig Facility 226 FTE
STATE-SIZE Absopure Company #14 226 FTE
STATE-SIZE Corvac Composites - Kentwood 226 FTE
STATE-SIZE MOTION DYNAMICS CORPORATION 226 FTE
CITY-NEAR Maxfield Education Center 1,353 FTE
CITY-NEAR Administration Building/ CO 1,317 FTE
CITY-NEAR Gill Elementary 1,317 FTE
CITY-NEAR Longacre Elementary 1,317 FTE
NAT-TCR Careone at East Brunswick 6.1 TCR
NAT-TCR Harmony Village at Careone Stanwick Road 6.1 TCR
NAT-TCR W.L. Deckert Co., Inc. 6.1 TCR
NAT-TCR New Hyde Park 6.1 TCR
NAT-SIZE Veeco Somerset 226 FTE
NAT-SIZE Corporate Office 226 FTE
NAT-SIZE Ocean Spray Cranberries 226 FTE
NAT-SIZE Tuttle Dairy 226 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.