Ready-mix concrete manufacturing and distributing · California

Dennie Manning Concrete Inc

Fontana, CA · ~20 workers · 7 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
6.3
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Dennie Manning Concrete Inc runs at 192% of its industry's injury rate - more dangerous than the typical Ready-mix concrete manufacturing and distributing workplace, earning a grade D.

Dennie Manning Concrete Inc: 6.3 TCR = 192% of Ready-mix concrete manufacturing and distributing BLS 3.3 · 7y Form 300A (see methodology below)

Dennie Manning Concrete Inc safety composite

Dennie Manning Concrete Inc scores strongest on dart rate (safer than 81% of same-industry peers) and weakest on total case rate (tcr) (safer than 30%), 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

53/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 6.33 per 100 workers

Safer than 30% 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%).

TCR Δ

−16.8

2018→2024

Dennie Manning Concrete Inc injury rate improved

Dennie Manning Concrete Inc's TCR fell 16.8 from 16.8 in 2018 to 0.0 in 2024. Peak filing year was 2022 at 17.4 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2018=16.8 · 2019=4.9 · 2020=5.3 · 2021=0.0 · 2022=17.4 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 327320 · Fontana, CA ABOVE-IND · SMALL

Grade D · TCR 6.3 · 192% of ind

  • DART 0.0 DART
  • RANK #92/128
  • PHOTO L. Suzio Concrete Co…
  • BOOK 7y book
  • INJ 9 inj
  • SIZE ~20 FTE

Nearest TCR peer: L. Suzio Concrete Company (0.0 TCR gap)

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Dennie Manning Concrete Inc in the TCR neighbourhood

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

TCR

What this shows Dennie Manning Concrete Inc averages 6.3 TCR (192% 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

Dennie Manning Concrete Inc TCR series: 2018=16.8 · 2019=4.9 · 2020=5.3 · 2021=0 · 2022=17.4 · 2023=0 · 2024=0 · BLS 3.3

Where Dennie Manning Concrete Inc falls in its industry

1,316 Ready-mix concrete manufacturi establishments

Safer than 30% 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 #92 safest of 128 Ready-mix concrete manufacturi employers in California.

Dennie Manning Concrete Inc (20 employees, TCR 6.3) 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 Dennie Manning Concrete Inc
Dennie Manning Concrete Inc (20 employees, TCR 6.3) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5

Dennie Manning Concrete Inc has fewer 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 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 17.4 11.6 3 0 0
2021 0.0 0.0 0 0 0
2020 5.3 5.3 1 0 0
2019 4.9 4.9 1 0 0
2018 16.8 8.4 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

327320 · CA · Fontana

1,316 Ready-mix concrete manufacturing and distributing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 363 employers in Fontana, 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 L. Suzio Concrete Company 6.3 TCR
NAICS-TCR Glendale Ready Mix 6.3 TCR
NAICS-TCR Kentucky Ave Plant 6.3 TCR
NAICS-TCR 008 Midway 6.3 TCR
STATE-SIZE Sills Farms, Inc. 20 FTE
STATE-SIZE F A Maggiore & Sons, LLC 20 FTE
STATE-SIZE CALMEX CONTRACTING INC 20 FTE
STATE-SIZE Velvet Antler Ranch LLC 20 FTE
CITY-NEAR North America Fulfillment Centers (FCs) : LAX9 2,844 FTE
CITY-NEAR Amazon.com Services LLC - LAX9 2,645 FTE
CITY-NEAR 08880314 FONTANA MEDICAL CENTER 2,635 FTE
CITY-NEAR 2032-08180314 2,236 FTE
NAT-TCR Shelbyville Hatchery 6.3 TCR
NAT-TCR Island Lane Day Program 6.3 TCR
NAT-TCR Prescription Landscape - Shakopee Office 6.3 TCR
NAT-TCR Sr-Vta-South Riding 6.3 TCR
NAT-SIZE Diversicon 20 FTE
NAT-SIZE JMS Russel Metals Corp - LPC 20 FTE
NAT-SIZE Tielens Construction Inc 20 FTE
NAT-SIZE Kerrico Corporation 20 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, 2020, 2019, 2018. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.