Semi-trailer manufacturing · Idaho

Trinity Trailer Mfg. Inc.

Boise, ID · ~98 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
14.8
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Trinity Trailer Mfg. Inc. runs at 448% of its industry's injury rate - far more dangerous than the typical Semi-trailer manufacturing workplace, earning a grade F.

Trinity Trailer Mfg. Inc.: 14.8 TCR = 448% of Semi-trailer manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

Trinity Trailer Mfg. Inc. safety composite

Trinity Trailer Mfg. Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 6%), 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).

F

18/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 14.78 per 100 workers

Safer than 8% of industry peers

DART rate
F 10.13 per 100 workers

Safer than 6% 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

Trinity Trailer Mfg. Inc.: 10.4 → 19.1 TCR

Peak year 2017 @ 19.1 TCR · DART/TCR 0.69× in 2017

Trinity Trailer Mfg. Inc.'s TCR rose 8.7 from 10.4 in 2016 to 19.1 in 2017. In 2017, DART was 0.69× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336212 · Boise, ID ABOVE-IND · SMALL

Grade F · TCR 14.8 · 448% of ind

  • DART 10.1 DART
  • RANK #14/16
  • PHOTO Magic Tilt Trailers,…
  • BOOK 2y book
  • INJ 29 inj
  • SIZE ~98 FTE

Nearest TCR peer: Magic Tilt Trailers, Inc. (0.1 TCR gap)

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

Trinity Trailer Mfg. Inc. in the TCR neighbourhood

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

TCR

What this shows Trinity Trailer Mfg. Inc. averages 14.8 TCR (448% of the Semi-trailer manufacturing BLS benchmark).

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

Trinity Trailer Mfg. Inc. TCR series: 2016=10.4 · 2017=19.1 · BLS 3.3

Where Trinity Trailer Mfg. Inc. falls in its industry

474 Semi-trailer manufacturing establishments

Safer than 8% of graded establishments in this industry, whose median TCR is 5.6.

More dangerous than peersSafer than peers

Narrower to Idaho alone (the establishments it most directly competes with for workers and contracts): ranked #14 safest of 16 Semi-trailer manufacturing employers in Idaho.

Trinity Trailer Mfg. Inc. (98 employees, TCR 14.8) 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 Trinity Trailer Mfg. Inc.
Trinity Trailer Mfg. Inc. (98 employees, TCR 14.8) among 29 same-industry peers, split at the industry median of 86 employees and a TCR of 5.6

Trinity Trailer Mfg. Inc. has more employees than the Semi-trailer manufacturing median and a higher 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
2017 19.1 10.1 16 1 0
2016 10.4 4.8 13 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336212 · ID · Boise

474 Semi-trailer manufacturing employers nationwide with a credible TCR · 2,774 rated employers in Idaho with headcount on file · 581 employers in Boise, ID · 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 Magic Tilt Trailers, Inc. 14.6 TCR
NAICS-TCR Universal Freight Express 15.1 TCR
NAICS-TCR 118_15951 14.4 TCR
NAICS-TCR Stoughton Trailers LLC 15.1 TCR
STATE-SIZE JR Simplot Company-WSI Caldwell 98 FTE
STATE-SIZE Anheuser-Busch Companies, Inc. - Idaho Falls 98 FTE
STATE-SIZE Fiberon - Meridian 98 FTE
STATE-SIZE 4054-000000159 98 FTE
CITY-NEAR St. Luke's Boise Medical Center (Including MSTI) 10,034 FTE
CITY-NEAR 1-Boise Main Site 6,035 FTE
CITY-NEAR Micron Boise Site 5,184 FTE
CITY-NEAR Saint Alphonsus Regional Medical Center 3,869 FTE
NAT-TCR 4795-PD-RIC-RICHMOND-PD 14.8 TCR
NAT-TCR SD,DELL RAPIDS - Orchard Hills - Continuing Care Retirement Communities 14.8 TCR
NAT-TCR PCS Visalia 14.8 TCR
NAT-TCR Saint Mary Medical Center 14.8 TCR
NAT-SIZE Washington N and R LLC dba Grandview Healthcare 98 FTE
NAT-SIZE Autumn Care of Mocskville 98 FTE
NAT-SIZE Peapod S&S West Danbury, Ct 98 FTE
NAT-SIZE Sunnking Inc. 98 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: 2017, 2016. 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.