Mechanical contractors · Wisconsin

Ahern Menomonie (NW)

Name: Ahern Menomonie (NW) Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Menomonie, WI · ~105 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.3
Avg TCR: 2.8
Industry avg: 0
Fatalities

Subscribe to safety-record updates (RSS)

The verdict

Ahern Menomonie (NW) runs at 83% of its industry's injury rate - about level with the typical Mechanical contractors workplace, earning a grade C.

Ahern Menomonie (NW): 2.3 TCR = 83% of Mechanical contractors BLS 2.8 · 6y Form 300A (see methodology below)

Ahern Menomonie (NW) safety composite

Ahern Menomonie (NW) scores strongest on total case rate (tcr) (safer than 63% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.33 per 100 workers

Safer than 63% of industry peers
DART rate: D 0.96 per 100 workers

Safer than 53% 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%).

Rising injury rate

Ahern Menomonie (NW): 0.0 → 1.9 TCR

Peak year 2020 @ 4.7 TCR · DART/TCR 0.41× in 2024

Ahern Menomonie (NW)'s TCR rose 1.9 from 0.0 in 2019 to 1.9 in 2024. Peak filing year was 2020 at 4.7 TCR. In 2024, DART was 0.41× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Menomonie, WI AT/BELOW-IND · MID

Grade C · TCR 2.3 · 83% of ind

DART 1.0 DART
RANK #48/154
PHOTO Durham & Sons, Inc.
BOOK 6y book
INJ 10 inj
SIZE ~105 FTE

Nearest TCR peer: Durham & Sons, Inc. (0.0 TCR gap)

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

This site

2.3
Durham & Sons,

2.3
Great Lakes Pl

2.3
Greco and Hain

2.3
Lawson Mechani

2.3

What this shows Ahern Menomonie (NW) averages 2.3 TCR (83% of the Mechanical contractors BLS benchmark).

Ahern Menomonie (NW) TCR series: 2019=0 · 2020=4.7 · 2021=3 · 2022=2.7 · 2023=1.7 · 2024=1.9 · BLS 2.8

Where Ahern Menomonie (NW) falls in its industry

5,793 Mechanical contractors establishments

Safer than 63% of graded establishments in this industry, whose median TCR is 3.3.

Grade C

More dangerous than peersSafer than peers

Narrower to Wisconsin alone (the establishments it most directly competes with for workers and contracts): ranked #48 safest of 154 Mechanical contractors employers in Wisconsin.

Ahern Menomonie (NW) (105 employees, TCR 2.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Ahern Menomonie (NW) has more employees than the Mechanical contractors median and a lower injury rate than the industry's median TCR of 3.3. 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
2024	1.9	1.0	2	0
2023	1.7	0.0	2	0
2022	2.7	0.9	3	0
2021	3.0	1.0	2	1
2020	4.7	0.0	1	3
2019	0.0	0.0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · WI · Menomonie

5,793 Mechanical contractors employers nationwide with a credible TCR · 12,834 rated employers in Wisconsin with headcount on file · 78 employers in Menomonie, WI · 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	Durham & Sons, Inc.	MELBOURNE, FL	2.3 TCR
NAICS-TCR	Great Lakes Plumbing & Heating Company	WESTMONT, IL	2.3 TCR
NAICS-TCR	Greco and Haines, Inc.	DERBY, CT	2.3 TCR
NAICS-TCR	Lawson Mechanical Contractors, LLC	SACRAMENTO, CA	2.3 TCR
STATE-SIZE	Koppers KRS Field Services	MADISON	105 FTE
STATE-SIZE	Horner Plumbing Co., INC.	PEWAUKEE	105 FTE
STATE-SIZE	Nortera Foods Fairwater	FAIRWATER	105 FTE
STATE-SIZE	Precision Coating	RHINELANDER	105 FTE
CITY-NEAR	6025	Menomonie	912 FTE
CITY-NEAR	WM 6025	Menomonie	869 FTE
CITY-NEAR	Menomonie	Menomonie	690 FTE
CITY-NEAR	Phillips-Medisize, LLC - Phillips Medical	Menomonie	653 FTE
NAT-TCR	S03279 - Annapolis Junction Transfer Station	Jessup, MD	2.3 TCR
NAT-TCR	Apple Core Enterprises LLC, dba DART Refrigeration	Baton Rouge, LA	2.3 TCR
NAT-TCR	Tropical Shipping and Construction Company Limited dba Tropical Shipping St. Thomas	Charlotte Amalie, St. Thomas, VI	2.3 TCR
NAT-TCR	Powder River Energy Corp. Gillette	Gillette, WY	2.3 TCR
NAT-SIZE	Continuing Healthcare of Niles	Niles, OH	105 FTE
NAT-SIZE	Atlanta PDC	Morrow, GA	105 FTE
NAT-SIZE	Dallas PDC	Carrollton, TX	105 FTE
NAT-SIZE	Crowne Plaza Portland Downtown	Portland, OR	105 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. 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.