Ready-mix concrete manufacturing and distributing · California

Hi-Grade Materials-Hesperia Agg& Ready Mix

Hesperia, CA · ~36 workers · 7 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.0
Avg TCR
3.3
Industry avg
1
Fatality
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The verdict

Hi-Grade Materials-Hesperia Agg& Ready Mix runs at 92% of its industry's injury rate - about level with the typical Ready-mix concrete manufacturing and distributing workplace, earning a grade C.

Hi-Grade Materials-Hesperia Agg& Ready Mix: 3.0 TCR = 92% of Ready-mix concrete manufacturing and distributing BLS 3.3 · 7y Form 300A (see methodology below)

Hi-Grade Materials-Hesperia Agg& Ready Mix safety composite

Hi-Grade Materials-Hesperia Agg& Ready Mix scores strongest on dart rate (safer than 81% of same-industry peers) and weakest on fatalities (safer than 1%), 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

56/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 3.02 per 100 workers

Safer than 68% of industry peers

DART rate
B 0 per 100 workers

Safer than 81% of industry peers

Fatalities
F 1

Safer than 1% 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

−6.9

2017→2024

Hi-Grade Materials-Hesperia Agg& Ready Mix injury rate improved

Hi-Grade Materials-Hesperia Agg& Ready Mix's TCR fell 6.9 from 6.9 in 2017 to 0.0 in 2024. Peak filing year was 2017 at 6.9 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2017=6.9 · 2018=0.0 · 2019=0.0 · 2021=3.0 · 2022=5.6 · 2023=5.7 · 2024=0.0

OSHA ITA Form 300A scorecard

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

Grade C · TCR 3.0 · 92% of ind

  • DART 0.0 DART
  • RANK #33/128
  • PHOTO Silvi Concrete of Ch…
  • BOOK 7y book
  • INJ 7 inj
  • SIZE ~36 FTE

Nearest TCR peer: Silvi Concrete of Chester County, LLC (0.0 TCR gap)

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

Hi-Grade Materials-Hesperia Agg& 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-Hesperia Agg& Ready Mix averages 3.0 TCR (92% 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

Hi-Grade Materials-Hesperia Agg& Ready Mix TCR series: 2017=6.9 · 2018=0 · 2019=0 · 2021=3 · 2022=5.6 · 2023=5.7 · 2024=0 · BLS 3.3

Where Hi-Grade Materials-Hesperia Agg& Ready Mix falls in its industry

1,316 Ready-mix concrete manufacturi establishments

Safer than 68% 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 #33 safest of 128 Ready-mix concrete manufacturi employers in California.

Hi-Grade Materials-Hesperia Agg& Ready Mix (36 employees, TCR 3.0) 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-Hesperia Agg& Ready Mix
Hi-Grade Materials-Hesperia Agg& Ready Mix (36 employees, TCR 3.0) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5

Hi-Grade Materials-Hesperia Agg& Ready Mix has more employees than the Ready-mix concrete manufacturing and dis 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 0.0 0.0 0 0 0
2023 5.7 2.8 2 0 0
2022 5.6 5.6 2 0 0
2021 3.0 0.0 0 1 1
2019 0.0 0.0 0 0 0
2018 0.0 0.0 0 0 0
2017 6.9 6.9 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

327320 · CA · Hesperia

1,316 Ready-mix concrete manufacturing and distributing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 60 employers in Hesperia, CA · 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 Silvi Concrete of Chester County, LLC 3.0 TCR
NAICS-TCR DB01 3.0 TCR
NAICS-TCR City Wide Construction Products 3.0 TCR
NAICS-TCR SOUTHERN CONCRETE PRODUCTS 3.0 TCR
STATE-SIZE River Garden Farms 36 FTE
STATE-SIZE Knight Farms 36 FTE
STATE-SIZE J.H. MEEK & SONS INC. 36 FTE
STATE-SIZE Dirt Farmer and Company 36 FTE
CITY-NEAR California Department of Transportation Facility 299 1,529 FTE
CITY-NEAR WM 4340 484 FTE
CITY-NEAR 4340 420 FTE
CITY-NEAR Keolis Transit America Hesperia 300 FTE
NAT-TCR Albany Community Pool 3.0 TCR
NAT-TCR Redner's Warehouse Market Chestertown 3.0 TCR
NAT-TCR Modernistic, Inc. 3.0 TCR
NAT-TCR Toshiba Business Solutions - Mt Gilead 3.0 TCR
NAT-SIZE St. Louis Paving, LLC 36 FTE
NAT-SIZE Dixie Plywood and Lumber Co. of San Antonio 36 FTE
NAT-SIZE CentraCare SCH Adult Addiction Services 36 FTE
NAT-SIZE Minalex Corporation 36 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, 2019, 2018, 2017. 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.