Ready-mix concrete manufacturing and distributing · California

Hi-Grade Materials-Hesperia Transportation

Name: Hi-Grade Materials-Hesperia Transportation Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Hesperia, CA · ~19 workers · 7 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 2.6
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Hi-Grade Materials-Hesperia Transportation runs at 78% of its industry's injury rate - safer than the typical Ready-mix concrete manufacturing and distributing workplace, earning a grade B.

Hi-Grade Materials-Hesperia Transportation: 2.6 TCR = 78% of Ready-mix concrete manufacturing and distributing BLS 3.3 · 7y Form 300A (see methodology below)

Hi-Grade Materials-Hesperia Transportation safety composite

Hi-Grade Materials-Hesperia Transportation scores strongest on total case rate (tcr) (safer than 72% of same-industry peers) and weakest on dart rate (safer than 10%), 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).

45/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.58 per 100 workers

Safer than 72% of industry peers
DART rate: F 9.16 per 100 workers

Safer than 10% 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-Hesperia Transportation: 0.0 → 9.2 TCR

Peak year 2024 @ 9.2 TCR · DART/TCR 3.55× in 2024

Hi-Grade Materials-Hesperia Transportation's TCR rose 9.2 from 0.0 in 2017 to 9.2 in 2024. In 2024, DART was 3.55× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

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

Grade B · TCR 2.6 · 78% of ind

DART 9.2 DART
RANK #28/128
PHOTO Sil-Kemp, Inc.
BOOK 7y book
INJ 4 inj
SIZE ~19 FTE

Nearest TCR peer: Sil-Kemp, Inc. (0.0 TCR gap)

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

This site

2.6
Sil-Kemp, Inc.

2.6
San Francisco

2.6
Higley Ready M

2.6
New River Read

2.6

What this shows Hi-Grade Materials-Hesperia Transportation averages 2.6 TCR (78% of the Ready-mix concrete manufacturing and distributing BLS benchmark).

Hi-Grade Materials-Hesperia Transportation TCR series: 2017=0 · 2018=0 · 2019=0 · 2021=0 · 2022=0 · 2023=8.9 · 2024=9.2 · BLS 3.3

Where Hi-Grade Materials-Hesperia Transportation falls in its industry

1,316 Ready-mix concrete manufacturi establishments

Safer than 72% of graded establishments in this industry, whose median TCR is 4.5.

Grade B

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #28 safest of 128 Ready-mix concrete manufacturi employers in California.

Hi-Grade Materials-Hesperia Transportation (19 employees, TCR 2.6) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5

Hi-Grade Materials-Hesperia Transportation has fewer 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
2024	9.2	9.2	2
2023	8.9	8.9	2
2022	0.0	0.0	0
2021	0.0	0.0	0
2019	0.0	0.0	0
2018	0.0	0.0	0
2017	0.0	0.0	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. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Sil-Kemp, Inc.	MILLSTONE TOWNSHIP, NJ	2.6 TCR
NAICS-TCR	San Francisco RM	SAN FRANCISCO, CA	2.6 TCR
NAICS-TCR	Higley Ready Mix	MESA, AZ	2.6 TCR
NAICS-TCR	New River Ready Mix	PHOENIX, AZ	2.6 TCR
STATE-SIZE	A. OSEGUERA CO., INC.	SALINAS	19 FTE
STATE-SIZE	TEIXEIRA FARMS INC	SANTA MARIA	19 FTE
STATE-SIZE	Golden R, Inc.	STOCKTON	19 FTE
STATE-SIZE	PEDRAZZI FARMS	SALINAS	19 FTE
CITY-NEAR	California Department of Transportation Facility 299	Hesperia	1,529 FTE
CITY-NEAR	WM 4340	Hesperia	484 FTE
CITY-NEAR	4340	Hesperia	420 FTE
CITY-NEAR	Keolis Transit America Hesperia	Hesperia	300 FTE
NAT-TCR	Perkiomen Motorcoach, LLC	Pennsburg, PA	2.6 TCR
NAT-TCR	Toshiba Business Solutions - Fishers	Fishers, IN	2.6 TCR
NAT-TCR	S04049 - WM of Tulsa	Tulsa, OK	2.6 TCR
NAT-TCR	Post Falls Division	Post Falls, ID	2.6 TCR

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.