Truck-mixed concrete manufacturing · California

Hi-Grade Materials - Littlerock Ready Mix

Littlerock, CA · ~23 workers · 4 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.2
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Hi-Grade Materials - Littlerock Ready Mix runs at 98% of its industry's injury rate - about level with the typical Truck-mixed concrete manufacturing workplace, earning a grade C.

Hi-Grade Materials - Littlerock Ready Mix: 3.2 TCR = 98% of Truck-mixed concrete manufacturing BLS 3.3 · 4y Form 300A (see methodology below)

Hi-Grade Materials - Littlerock Ready Mix safety composite

Hi-Grade Materials - Littlerock Ready Mix scores strongest on dart rate (safer than 81% 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

68/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 3.24 per 100 workers

Safer than 66% of industry peers

DART rate
B 0 per 100 workers

Safer than 81% 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%).

Rising injury rate

Hi-Grade Materials - Littlerock Ready Mix: 0.0 → 8.1 TCR

Peak year 2024 @ 8.1 TCR · DART/TCR 0× in 2024

Hi-Grade Materials - Littlerock Ready Mix's TCR rose 8.1 from 0.0 in 2021 to 8.1 in 2024. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 327320 · Littlerock, CA AT/BELOW-IND · SMALL

Grade C · TCR 3.2 · 98% of ind

  • DART 0.0 DART
  • RANK #37/128
  • PHOTO Mokena Yard 210
  • BOOK 4y book
  • INJ 3 inj
  • SIZE ~23 FTE

Nearest TCR peer: Mokena Yard 210 (0.0 TCR gap)

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

Hi-Grade Materials - Littlerock Ready Mix in the TCR neighbourhood

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

TCR

What this shows Hi-Grade Materials - Littlerock Ready Mix averages 3.2 TCR (98% of the Truck-mixed concrete manufacturing BLS benchmark).

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

Hi-Grade Materials - Littlerock Ready Mix TCR series: 2021=0 · 2022=0 · 2023=4.8 · 2024=8.1 · BLS 3.3

Where Hi-Grade Materials - Littlerock Ready Mix falls in its industry

1,316 Truck-mixed concrete manufactu establishments

Safer than 66% of graded establishments in this industry, whose median TCR is 4.5.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #37 safest of 128 Truck-mixed concrete manufactu employers in California.

Hi-Grade Materials - Littlerock Ready Mix (23 employees, TCR 3.2) 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 Hi-Grade Materials - Littlerock Ready Mix
Hi-Grade Materials - Littlerock Ready Mix (23 employees, TCR 3.2) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5

Hi-Grade Materials - Littlerock Ready Mix has fewer employees than the Truck-mixed concrete manufacturing median and a lower 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 8.1 0.0 2 0 0
2023 4.8 4.8 1 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

327320 · CA · Littlerock

1,316 Truck-mixed concrete manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 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 Mokena Yard 210 3.2 TCR
NAICS-TCR Fontana Plant #4 3.2 TCR
NAICS-TCR USC Jenna 3.2 TCR
NAICS-TCR Los Angeles RM 3.3 TCR
STATE-SIZE James Diedrich Farms 23 FTE
STATE-SIZE Tri-Fanucchi Farms,LLC 23 FTE
STATE-SIZE KAN2 - 04 23 FTE
STATE-SIZE Kyer Farms 23 FTE
CITY-NEAR Hi-Grade Materials-Littlerock 28 FTE
NAT-TCR Equipment Depot Ohio, Inc - Lexington 3.2 TCR
NAT-TCR Jay Wolfe Imports LLC (Honda) 3.2 TCR
NAT-TCR Excel Truck Group Glen Allen 3.2 TCR
NAT-TCR 5530 - Greensboro 3.2 TCR
NAT-SIZE Suite Living of Brooklyn Park 23 FTE
NAT-SIZE Warren Central Kitchen 23 FTE
NAT-SIZE Mount Pleasant Towne Centre 23 FTE
NAT-SIZE Travelodge - Wellington 23 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, 2022, 2021. 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.