Lighting transformers, street and airport, manufacturing · South Dakota

T & R Electric Supply Co. Inc.

Colman, SD · ~204 workers · 9 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
10.6
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

T & R Electric Supply Co. Inc. runs at 321% of its industry's injury rate - far more dangerous than the typical Lighting transformers, street and airport, manufacturing workplace, earning a grade F.

T & R Electric Supply Co. Inc.: 10.6 TCR = 321% of Lighting transformers, street and airport, manufacturing BLS 3.3 · 9y Form 300A (see methodology below)

T & R Electric Supply Co. Inc. safety composite

T & R Electric Supply Co. Inc. scores strongest on dart rate (safer than 56% of same-industry peers) and weakest on total case rate (tcr) (safer than 2%), 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

33/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 10.6 per 100 workers

Safer than 2% of industry peers

DART rate
C 0.92 per 100 workers

Safer than 56% 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

T & R Electric Supply Co. Inc.: 5.5 → 16.6 TCR

Peak year 2024 @ 16.6 TCR · DART/TCR 0.09× in 2024

T & R Electric Supply Co. Inc.'s TCR rose 11.1 from 5.5 in 2016 to 16.6 in 2024. In 2024, DART was 0.09× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 335311 · Colman, SD ABOVE-IND · MID

Grade F · TCR 10.6 · 321% of ind

  • DART 0.9 DART
  • RANK P2
  • PHOTO Howard Industries In…
  • BOOK 9y book
  • INJ 183 inj
  • SIZE ~204 FTE

Nearest TCR peer: Howard Industries Inc. (Sandersville) (0.5 TCR gap)

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

T & R Electric Supply Co. Inc. in the TCR neighbourhood

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

TCR

What this shows T & R Electric Supply Co. Inc. averages 10.6 TCR (321% of the Lighting transformers, street and airport, manufacturing BLS benchmark).

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

T & R Electric Supply Co. Inc. TCR series: 2016=5.5 · 2017=9.1 · 2018=8.4 · 2019=8.6 · 2020=10.9 · 2021=10.2 · 2022=12 · 2023=13.9 · 2024=16.6 · BLS 3.3

Where T & R Electric Supply Co. Inc. falls in its industry

141 Lighting transformers, street establishments

Safer than 2% of graded establishments in this industry, whose median TCR is 2.6.

More dangerous than peersSafer than peers
T & R Electric Supply Co. Inc. (204 employees, TCR 10.6) among 29 same-industry peers, split at the industry median of 120 employees and a TCR of 2.6 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 05001,0001,5002,0002,500 051015 Average employees Total Case Rate T & R Electric Supply Co. Inc.
T & R Electric Supply Co. Inc. (204 employees, TCR 10.6) among 29 same-industry peers, split at the industry median of 120 employees and a TCR of 2.6

T & R Electric Supply Co. Inc. has more employees than the Lighting transformers, street and airpor median and a higher injury rate than the industry's median TCR of 2.6. 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
2024 16.6 0.9 36 0 0
2023 13.9 1.0 28 0 0
2022 12.0 0.6 22 0 0
2021 10.2 0.0 19 0 0
2020 10.9 1.0 21 0 0
2019 8.6 0.5 16 0 0
2018 8.4 0.6 15 0 0
2017 9.1 2.9 16 0 0
2016 5.5 1.7 10 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

335311 · SD · Colman

141 Lighting transformers, street and airport, manufacturing employers nationwide with a credible TCR · 1,778 rated employers in South Dakota with headcount on file · 3 employers in Colman, SD · 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 Howard Industries Inc. (Sandersville) 10.1 TCR
NAICS-TCR Pennsylvania Transformer Technologies, LLC - Raeford, NC 10.1 TCR
NAICS-TCR Menk USA, LLC 9.5 TCR
NAICS-TCR Manufacturing Systems & Equipment 12.0 TCR
STATE-SIZE Grand Prairie Foods 1400 Plant 201 FTE
STATE-SIZE WM 6565 207 FTE
STATE-SIZE Dakota Tube Inc. 200 FTE
STATE-SIZE Twin City Fan & Blower Sunrise 200 FTE
CITY-NEAR Sioux Valley Energy - Colman 70 FTE
CITY-NEAR Sioux Valley Energy - Brandon 27 FTE
NAT-TCR Great Lakes Metal Finishing, Inc 10.6 TCR
NAT-TCR Detention Center 10.6 TCR
NAT-TCR SSA Atlantic Wilmington 10.6 TCR
NAT-TCR Los Angeles Distribution Center 10.6 TCR
NAT-SIZE American Valve and Hydrant 204 FTE
NAT-SIZE Artesian Water Company, Inc.- Newark Establishment 204 FTE
NAT-SIZE Royal Engineered Composites 204 FTE
NAT-SIZE Bama Foods Ltd Partnership 204 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, 2018, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.