Excavating, earthmoving, or land clearing contractors · Arizona

Knochel Bros Inc

Phoenix, AZ · ~321 workers · 6 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
7.1
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Knochel Bros Inc runs at 253% of its industry's injury rate - far more dangerous than the typical Excavating, earthmoving, or land clearing contractors workplace, earning a grade F.

Knochel Bros Inc: 7.1 TCR = 253% of Excavating, earthmoving, or land clearing contractors BLS 2.8 · 6y Form 300A (see methodology below)

Knochel Bros Inc safety composite

Knochel Bros Inc scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 4%), 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).

F

19/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 7.07 per 100 workers

Safer than 11% of industry peers

DART rate
F 8.05 per 100 workers

Safer than 4% of industry peers

Fatalities
D 0

Safer than 52% 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

Knochel Bros Inc: 3.3 → 12.2 TCR

Peak year 2023 @ 12.2 TCR · DART/TCR 1.14× in 2023

Knochel Bros Inc's TCR rose 8.9 from 3.3 in 2016 to 12.2 in 2023. In 2023, DART was 1.14× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238910 · Phoenix, AZ ABOVE-IND · MID

Grade F · TCR 7.1 · 253% of ind

  • DART 8.1 DART
  • RANK #18/20
  • PHOTO NAPA Development Cor…
  • BOOK 6y book
  • INJ 148 inj
  • SIZE ~321 FTE

Nearest TCR peer: NAPA Development Corp, Inc. (0.0 TCR gap)

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

Knochel Bros Inc in the TCR neighbourhood

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

TCR

What this shows Knochel Bros Inc averages 7.1 TCR (253% of the Excavating, earthmoving, or land clearing contractors BLS benchmark).

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

Knochel Bros Inc TCR series: 2016=3.3 · 2017=7.1 · 2019=7.2 · 2021=6.3 · 2022=6.5 · 2023=12.2 · BLS 2.8

Where Knochel Bros Inc falls in its industry

1,750 Excavating, earthmoving, or la establishments

Safer than 11% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers

Narrower to Arizona alone (the establishments it most directly competes with for workers and contracts): ranked #18 safest of 20 Excavating, earthmoving, or la employers in Arizona.

Knochel Bros Inc (321 employees, TCR 7.1) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 2.5 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 0100200300400 0246810 Average employees Total Case Rate Knochel Bros Inc
Knochel Bros Inc (321 employees, TCR 7.1) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 2.5

Knochel Bros Inc has more employees than the Excavating, earthmoving, or land clearin median and a higher injury rate than the industry's median TCR of 2.5. 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
2023 12.2 8.1 56 0 0
2022 6.5 4.4 26 2 0
2021 6.3 3.9 21 3 0
2019 7.2 4.9 22 3 0
2017 7.1 6.7 17 0 0
2016 3.3 2.8 6 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

238910 · AZ · Phoenix

1,750 Excavating, earthmoving, or land clearing contractors employers nationwide with a credible TCR · 9,594 rated employers in Arizona with headcount on file · 2,630 employers in Phoenix, AZ · 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 NAPA Development Corp, Inc. 7.1 TCR
NAICS-TCR District Contractors Inc 7.1 TCR
NAICS-TCR Southern Engineering & Construction Corp 7.1 TCR
NAICS-TCR Ray Labbe & Sons Inc 7.1 TCR
STATE-SIZE 6458-ZNPH 321 FTE
STATE-SIZE Caretakers/Marsden West - AZ 321 FTE
STATE-SIZE Lennar Arizona (Tempe) 320 FTE
STATE-SIZE Riggs Companies 320 FTE
CITY-NEAR Maricopa County 15,504 FTE
CITY-NEAR Phoenix Children's Hospital 7,575 FTE
CITY-NEAR All Company 6,261 FTE
CITY-NEAR 6403-64030500 6,153 FTE
NAT-TCR Crucible Industries llc 7.1 TCR
NAT-TCR Deseret Cattle Feeders 7.1 TCR
NAT-TCR G M Contracting, Inc. 7.1 TCR
NAT-TCR 5840 - Harrisburg 7.1 TCR
NAT-SIZE Marotta Controls, Inc. 321 FTE
NAT-SIZE Market Basket #46 321 FTE
NAT-SIZE Land O' lakes - Spencer 321 FTE
NAT-SIZE Bios Corporate Office 321 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: 2023, 2022, 2021, 2019, 2017, 2016. 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.