Culverts, highway, road and street, construction · Minnesota

Wm Mueller & Sons Inc

Hamburg, MN · ~68 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.1
Avg TCR
2.8
Industry avg
1
Fatality
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The verdict

Wm Mueller & Sons Inc runs at 145% of its industry's injury rate - more dangerous than the typical Culverts, highway, road and street, construction workplace, earning a grade D.

Wm Mueller & Sons Inc: 4.1 TCR = 145% of Culverts, highway, road and street, construction BLS 2.8 · 2y Form 300A (see methodology below)

Wm Mueller & Sons Inc safety composite

Wm Mueller & Sons Inc scores strongest on dart rate (safer than 81% of same-industry peers) and weakest on fatalities (safer than 3%), 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

44/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.07 per 100 workers

Safer than 37% of industry peers

DART rate
B 0 per 100 workers

Safer than 81% of industry peers

Fatalities
F 1

Safer than 3% 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

−2.7

2017→2023

Wm Mueller & Sons Inc injury rate improved

Wm Mueller & Sons Inc's TCR fell 2.7 from 5.4 in 2017 to 2.7 in 2023. Peak filing year was 2017 at 5.4 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2017=5.4 · 2023=2.7

OSHA ITA Form 300A scorecard

Establishment book 237310 · Hamburg, MN ABOVE-IND · SMALL

Grade D · TCR 4.1 · 145% of ind

  • DART 0.0 DART
  • RANK #58/107
  • PHOTO INDEPENDENCE PLANT
  • BOOK 2y book
  • INJ 6 inj
  • SIZE ~68 FTE

Nearest TCR peer: INDEPENDENCE PLANT (0.0 TCR gap)

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

Wm Mueller & Sons Inc in the TCR neighbourhood

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

TCR

What this shows Wm Mueller & Sons Inc averages 4.1 TCR (145% of the Culverts, highway, road and street, construction BLS benchmark).

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

Wm Mueller & Sons Inc TCR series: 2017=5.4 · 2023=2.7 · BLS 2.8

Where Wm Mueller & Sons Inc falls in its industry

4,078 Culverts, highway, road and st establishments

Safer than 37% of graded establishments in this industry, whose median TCR is 3.0.

More dangerous than peersSafer than peers

Narrower to Minnesota alone (the establishments it most directly competes with for workers and contracts): ranked #58 safest of 107 Culverts, highway, road and st employers in Minnesota.

Wm Mueller & Sons Inc (68 employees, TCR 4.1) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 3.0 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 01,0002,0003,000 0102030 Average employees Total Case Rate Wm Mueller & Sons Inc
Wm Mueller & Sons Inc (68 employees, TCR 4.1) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 3.0

Wm Mueller & Sons Inc has fewer employees than the Culverts, highway, road and street, cons median and a higher injury rate than the industry's median TCR of 3.0. 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 2.7 0.0 2 0 0
2017 5.4 1.4 4 0 1

OSHA ITA peer cross-reference

Establishment peer ledger

237310 · MN · Hamburg

4,078 Culverts, highway, road and street, construction employers nationwide with a credible TCR · 15,828 rated employers in Minnesota with headcount on file · 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 INDEPENDENCE PLANT 4.1 TCR
NAICS-TCR Elmers Crane and Dozer Inc 4.1 TCR
NAICS-TCR Exclusive Construction 4.1 TCR
NAICS-TCR Callahan Paving Corp. 4.1 TCR
STATE-SIZE Stearns Electric Association 68 FTE
STATE-SIZE Federal Contracting Group 68 FTE
STATE-SIZE T.A. Schifsky & Sons, Inc. 68 FTE
STATE-SIZE Northstar Specialties, Inc. 68 FTE
NAT-TCR America's Thrift Store #12 4.1 TCR
NAT-TCR Wise Connect, Inc. 4.1 TCR
NAT-TCR Peter Michael Winery 4.1 TCR
NAT-TCR Robinson Renovation & Custom Homes 4.1 TCR
NAT-SIZE Metals USA Northbrook 68 FTE
NAT-SIZE Mahar Tool Supply Company Inc - Sterling Heights 68 FTE
NAT-SIZE D&A Glass 68 FTE
NAT-SIZE ITT Engineered Valves LLC 68 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, 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.