Ready-mix concrete manufacturing and distributing · California

Concrete Inc DBA Knife River

Stockton, CA · ~86 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.3
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Concrete Inc DBA Knife River runs at 162% of its industry's injury rate - more dangerous than the typical Ready-mix concrete manufacturing and distributing workplace, earning a grade D.

Concrete Inc DBA Knife River: 5.3 TCR = 162% of Ready-mix concrete manufacturing and distributing BLS 3.3 · 3y Form 300A (see methodology below)

Concrete Inc DBA Knife River safety composite

Concrete Inc DBA Knife River scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 39%), 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

42/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 5.34 per 100 workers

Safer than 40% of industry peers

DART rate
D 3.85 per 100 workers

Safer than 39% 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%).

Concrete Inc DBA Knife River held a steady TCR band

Concrete Inc DBA Knife River's TCR held near 0.2 from 5.9 in 2017 to 5.8 in 2024. Peak filing year was 2017 at 5.9 TCR. In 2024, DART was 0.72× this establishment's average TCR (severity share of cases).

2017=5.9 · 2021=4.3 · 2024=5.8

OSHA ITA Form 300A scorecard

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

Grade D · TCR 5.3 · 162% of ind

  • DART 3.9 DART
  • RANK #76/128
  • PHOTO Thorne Ready Mix Plant
  • BOOK 3y book
  • INJ 12 inj
  • SIZE ~86 FTE

Nearest TCR peer: Thorne Ready Mix Plant (0.0 TCR gap)

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

Concrete Inc DBA Knife River in the TCR neighbourhood

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

TCR

What this shows Concrete Inc DBA Knife River averages 5.3 TCR (162% 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

Concrete Inc DBA Knife River TCR series: 2017=5.9 · 2021=4.3 · 2024=5.8 · BLS 3.3

Where Concrete Inc DBA Knife River falls in its industry

1,316 Ready-mix concrete manufacturi establishments

Safer than 40% 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 #76 safest of 128 Ready-mix concrete manufacturi employers in California.

Concrete Inc DBA Knife River (86 employees, TCR 5.3) 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 Concrete Inc DBA Knife River
Concrete Inc DBA Knife River (86 employees, TCR 5.3) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5

Concrete Inc DBA Knife River 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 5.8 3.9 3 0 0
2021 4.3 3.2 4 0 0
2017 5.9 4.7 5 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

327320 · CA · Stockton

1,316 Ready-mix concrete manufacturing and distributing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 605 employers in Stockton, 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 Thorne Ready Mix Plant 5.3 TCR
NAICS-TCR 69930018-000009 QUEEN S LANE 5.3 TCR
NAICS-TCR 532 Mankato North 5.3 TCR
NAICS-TCR Wille Oak Forest 5.3 TCR
STATE-SIZE MALAGA HARVEST SHOP 86 FTE
STATE-SIZE Muller Ranch, LLC 86 FTE
STATE-SIZE OXNARD TERRACE 86 FTE
STATE-SIZE Mushroom Farms 86 FTE
CITY-NEAR LaSalette Care and Rehabilitation Center 5,249 FTE
CITY-NEAR SCKCX0ABX SCK - ABX 4,573 FTE
CITY-NEAR CA-18 4,525 FTE
CITY-NEAR CDCR CA Health Care Facility 3,227 FTE
NAT-TCR Martin Flooring Company Inc. 5.3 TCR
NAT-TCR Chester A Asher 5.3 TCR
NAT-TCR Brandt Construction Co. 5.3 TCR
NAT-TCR MDT1 5.3 TCR
NAT-SIZE Aegis Group Inc 86 FTE
NAT-SIZE Essex Brownell 425 86 FTE
NAT-SIZE Sapphire Nursing at Wappingers 86 FTE
NAT-SIZE Amneal Pharmaceuticals LLC 86 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, 2021, 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.