Truck trailer manufacturing · Iowa

Mason City Plant

Mason City, IA · ~48 workers · 3 years of OSHA Injury Tracking Application data.

B
Good Safety Record
1.9
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Mason City Plant runs at 57% of its industry's injury rate - safer than the typical Truck trailer manufacturing workplace, earning a grade B.

Mason City Plant: 1.9 TCR = 57% of Truck trailer manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Mason City Plant safety composite

Mason City Plant scores strongest on total case rate (tcr) (safer than 91% 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).

B

80/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 1.87 per 100 workers

Safer than 91% of industry peers

DART rate
B 0 per 100 workers

Safer than 88% 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

Mason City Plant: 0.0 → 5.6 TCR

Peak year 2023 @ 5.6 TCR · DART/TCR 0× in 2023

Mason City Plant's TCR rose 5.6 from 0.0 in 2021 to 5.6 in 2023. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336212 · Mason City, IA AT/BELOW-IND · SMALL

Grade B · TCR 1.9 · 57% of ind

  • DART 0.0 DART
  • RANK #1/24
  • PHOTO PJ Mt Orab
  • BOOK 3y book
  • INJ 3 inj
  • SIZE ~48 FTE

Nearest TCR peer: PJ Mt Orab (0.0 TCR gap)

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

Mason City Plant in the TCR neighbourhood

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

TCR

What this shows Mason City Plant averages 1.9 TCR (57% of the Truck trailer manufacturing BLS benchmark).

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

Mason City Plant TCR series: 2021=0 · 2022=0 · 2023=5.6 · BLS 3.3

Where Mason City Plant falls in its industry

474 Truck trailer manufacturing establishments

Safer than 91% of graded establishments in this industry, whose median TCR is 5.6.

More dangerous than peersSafer than peers

Narrower to Iowa alone (the establishments it most directly competes with for workers and contracts): ranked #1 safest of 24 Truck trailer manufacturing employers in Iowa.

Mason City Plant (48 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 86 employees and a TCR of 5.6 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 01,0002,0003,0004,000 05101520 Average employees Total Case Rate Mason City Plant
Mason City Plant (48 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 86 employees and a TCR of 5.6

Mason City Plant has fewer employees than the Truck trailer manufacturing median and a lower injury rate than the industry's median TCR of 5.6. 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 5.6 0.0 3 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336212 · IA · Mason City

474 Truck trailer manufacturing employers nationwide with a credible TCR · 7,192 rated employers in Iowa with headcount on file · 126 employers in Mason City, IA · 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 PJ Mt Orab 1.9 TCR
NAICS-TCR Aulick Manufacturing Inc 1.8 TCR
NAICS-TCR Carry-On Coburg 1.8 TCR
NAICS-TCR Contract Manufacturer, LLC - CM Trailers 1.9 TCR
STATE-SIZE J&J Cattle Co 48 FTE
STATE-SIZE AMVC Management Services 48 FTE
STATE-SIZE Water Administration Building 48 FTE
STATE-SIZE Greiner Buildings, Inc. 48 FTE
CITY-NEAR Mercy Medical Center East Campus 1,592 FTE
CITY-NEAR Mercy Medical Center-Mason City-MHS-IA/NE 1,590 FTE
CITY-NEAR MercyOne North Iowa Medical Center 1,556 FTE
CITY-NEAR CURRIES 683 FTE
NAT-TCR Richard Lopez Construction Inc. 1.9 TCR
NAT-TCR Cram Roofing Company, Inc. 1.9 TCR
NAT-TCR Bosse Construction 1.9 TCR
NAT-TCR Shafii's Inc. dba TigerPress 1.9 TCR
NAT-SIZE Sauk Rapids Shop 48 FTE
NAT-SIZE C.L.Y. Inc. 48 FTE
NAT-SIZE Mount Materials LLC. 48 FTE
NAT-SIZE Lucas Plumbing & Heating, Inc. 48 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. 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.