Concrete finishing · Idaho

Knox Concrete LLC

Name: Knox Concrete LLC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Lewiston, ID · ~28 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 5.5
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Knox Concrete LLC runs at 196% of its industry's injury rate - more dangerous than the typical Concrete finishing workplace, earning a grade D.

Knox Concrete LLC: 5.5 TCR = 196% of Concrete finishing BLS 2.8 · 2y Form 300A (see methodology below)

Knox Concrete LLC safety composite

Knox Concrete LLC scores strongest on dart rate (safer than 81% of same-industry peers) and weakest on total case rate (tcr) (safer than 33%), 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).

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 5.5 per 100 workers

Safer than 33% 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

−3.4

2022→2023

Knox Concrete LLC injury rate improved

Knox Concrete LLC's TCR fell 3.4 from 7.2 in 2022 to 3.8 in 2023. Peak filing year was 2022 at 7.2 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2022=7.2 · 2023=3.8

OSHA ITA Form 300A scorecard

Establishment book 238110 · Lewiston, ID ABOVE-IND · SMALL

Grade D · TCR 5.5 · 196% of ind

DART 0.0 DART
RANK #3/10
PHOTO DC Construction, Inc.
BOOK 2y book
INJ 3 inj
SIZE ~28 FTE

Nearest TCR peer: DC Construction, Inc. (0.0 TCR gap)

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

This site

5.5
DC Constructio

5.5
Frederick Conc

5.5
Stewart & Sund

5.5
Choice Concret

5.5

What this shows Knox Concrete LLC averages 5.5 TCR (196% of the Concrete finishing BLS benchmark).

Knox Concrete LLC TCR series: 2022=7.2 · 2023=3.8 · BLS 2.8

Where Knox Concrete LLC falls in its industry

1,314 Concrete finishing establishments

Safer than 33% of graded establishments in this industry, whose median TCR is 3.8.

Grade D

More dangerous than peersSafer than peers

Narrower to Idaho alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 10 Concrete finishing employers in Idaho.

Knox Concrete LLC (28 employees, TCR 5.5) among 29 same-industry peers, split at the industry median of 64 employees and a TCR of 3.8

Knox Concrete LLC has fewer employees than the Concrete finishing median and a higher injury rate than the industry's median TCR of 3.8. 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	3.8	0.0	1	0	0
2022	7.2	7.2	2	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238110 · ID · Lewiston

1,314 Concrete finishing employers nationwide with a credible TCR · 2,774 rated employers in Idaho with headcount on file · 86 employers in Lewiston, ID · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	DC Construction, Inc.	LAUREL, MD	5.5 TCR
NAICS-TCR	Frederick Concrete Company, Inc.	FREDERICK, MD	5.5 TCR
NAICS-TCR	Stewart & Sundell Concrete Inc	NORTH LAS VEGAS, NV	5.5 TCR
NAICS-TCR	Choice Concrete, Inc.	LEWISVILLE, TX	5.5 TCR
STATE-SIZE	AgriSource, Inc.	BURLEY	28 FTE
STATE-SIZE	Clear Springs Foods Research and Development	BUHL	28 FTE
STATE-SIZE	Danielson Logging Inc.	SAINT MARIES	28 FTE
STATE-SIZE	Agri-Stor Company	TWIN FALLS	28 FTE
CITY-NEAR	Federal Cartridge Company	Lewiston	1,294 FTE
CITY-NEAR	St Joseph Regional Medical Center	Lewiston	739 FTE
CITY-NEAR	SEL Lewiston ID	Lewiston	715 FTE
CITY-NEAR	Clearwater Paper Lewiston PPD	Lewiston	702 FTE
NAT-TCR	JW Marriott Marco Island Beach Resort	Marco Island, FL	5.5 TCR
NAT-TCR	Hilton Milwaukee City Center	Milwaukee, WI	5.5 TCR
NAT-TCR	Ballreich Snack Food	Tiffin, OH	5.5 TCR
NAT-TCR	Noel Manor Retirement Living - Verona	Verona, WI	5.5 TCR
NAT-SIZE	Howard P. Fairfield Hopkinton	Hopkinton, NH	28 FTE
NAT-SIZE	Lynchburg District Bridge Crews	Lynchburg, VA	28 FTE
NAT-SIZE	San Diego South	San Diego, CA	28 FTE
NAT-SIZE	Powerhouse Entertainment LLC	North Hollywood, CA	28 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. 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.