Central-mixed concrete manufacturing · Montana

Donaldson Bros. Ready Mix, Inc.

Name: Donaldson Bros. Ready Mix, Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Hamilton, MT · ~37 workers · 5 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 4.7
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Donaldson Bros. Ready Mix, Inc. runs at 142% of its industry's injury rate - more dangerous than the typical Central-mixed concrete manufacturing workplace, earning a grade D.

Donaldson Bros. Ready Mix, Inc.: 4.7 TCR = 142% of Central-mixed concrete manufacturing BLS 3.3 · 5y Form 300A (see methodology below)

Donaldson Bros. Ready Mix, Inc. safety composite

Donaldson Bros. Ready Mix, Inc. scores strongest on dart rate (safer than 81% of same-industry peers) and weakest on total case rate (tcr) (safer than 47%), 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).

60/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): D 4.67 per 100 workers

Safer than 47% 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

−8.1

2019→2023

Donaldson Bros. Ready Mix, Inc. injury rate improved

Donaldson Bros. Ready Mix, Inc.'s TCR fell 8.1 from 8.1 in 2019 to 0.0 in 2023. Peak filing year was 2019 at 8.1 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2019=8.1 · 2020=5.3 · 2021=2.5 · 2022=7.4 · 2023=0.0

OSHA ITA Form 300A scorecard

Establishment book 327320 · Hamilton, MT ABOVE-IND · SMALL

Grade D · TCR 4.7 · 142% of ind

DART 0.0 DART
RANK #5/5
PHOTO Vitale Ready Mix Con…
BOOK 5y book
INJ 8 inj
SIZE ~37 FTE

Nearest TCR peer: Vitale Ready Mix Concrete Inc. (0.0 TCR gap)

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This site

4.7
Vitale Ready M

4.7
Ferrera Brothe

4.7
Northgate Read

4.7
Maryland Porta

4.7

What this shows Donaldson Bros. Ready Mix, Inc. averages 4.7 TCR (142% of the Central-mixed concrete manufacturing BLS benchmark).

Donaldson Bros. Ready Mix, Inc. TCR series: 2019=8.1 · 2020=5.3 · 2021=2.5 · 2022=7.4 · 2023=0 · BLS 3.3

Where Donaldson Bros. Ready Mix, Inc. falls in its industry

1,316 Central-mixed concrete manufac establishments

Safer than 47% of graded establishments in this industry, whose median TCR is 4.5.

Grade D

More dangerous than peersSafer than peers

Narrower to Montana alone (the establishments it most directly competes with for workers and contracts): ranked #5 safest of 5 Central-mixed concrete manufac employers in Montana.

Donaldson Bros. Ready Mix, Inc. (37 employees, TCR 4.7) among 29 same-industry peers, split at the industry median of 33 employees and a TCR of 4.5

Donaldson Bros. Ready Mix, Inc. has more employees than the Central-mixed concrete manufacturing 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
2023	0.0	0.0	0	0
2022	7.4	7.4	3	0
2021	2.5	0.0	1	0
2020	5.3	2.6	2	0
2019	8.1	2.7	2	1

OSHA ITA peer cross-reference

Establishment peer ledger

327320 · MT · Hamilton

1,316 Central-mixed concrete manufacturing employers nationwide with a credible TCR · 1,536 rated employers in Montana with headcount on file · 18 employers in Hamilton, MT · 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	Vitale Ready Mix Concrete Inc.	AUBURN, NY	4.7 TCR
NAICS-TCR	Ferrera Brothers, LLC, Maspeth Plant	MASPETH, NY	4.7 TCR
NAICS-TCR	Northgate Ready Mix	WINDSOR, CA	4.7 TCR
NAICS-TCR	Maryland Portable Concrete Riverside Plant	ABERDEEN, MD	4.7 TCR
STATE-SIZE	T.W. Clark Construction MT	BILLINGS	37 FTE
STATE-SIZE	Shumaker Trucking & Excavating Contractors Inc	GREAT FALLS	37 FTE
STATE-SIZE	Bernice's Bakery	MISSOULA	37 FTE
STATE-SIZE	Montana Fabrication Works, LLC	STEVENSVILLE	37 FTE
CITY-NEAR	Marcus Daly Memorial Hospital Corporation	Hamilton	661 FTE
CITY-NEAR	GlaxoSmithKline	Hamilton	203 FTE
CITY-NEAR	A2Z Personnel	Hamilton	171 FTE
CITY-NEAR	04564100-00W001 LOCAL BOUNTI CORPORATION-LOCAL BOUNTI CORPORATION	Hamilton	147 FTE
NAT-TCR	Ecco Ride Natchitoches	Natchitoches, LA	4.7 TCR
NAT-TCR	South Placer Municipal Utility District	Rocklin, CA	4.7 TCR
NAT-TCR	Prime Wellness of PA	Sinking Spring, PA	4.7 TCR
NAT-TCR	Maax Spa	Chandler, AZ	4.7 TCR
NAT-SIZE	Columbia Chemical Corp	Brunswick, OH	37 FTE
NAT-SIZE	Trego/Dugan Aviation Inc	North Platte, NE	37 FTE
NAT-SIZE	Albuquerque Progressive	Albuquerque, NM	37 FTE
NAT-SIZE	Main Office	Goddard, KS	37 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, 2020, 2019. 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.