Cast Iron Foundry · Michigan

Dock Foundry LLC dba Three Rivers Gray Iron

Three Rivers, MI · ~163 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
13.6
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Dock Foundry LLC dba Three Rivers Gray Iron runs at 413% of its industry's injury rate - far more dangerous than the typical Cast Iron Foundry workplace, earning a grade F.

Dock Foundry LLC dba Three Rivers Gray Iron: 13.6 TCR = 413% of Cast Iron Foundry BLS 3.3 · 2y Form 300A (see methodology below)

Dock Foundry LLC dba Three Rivers Gray Iron safety composite

Dock Foundry LLC dba Three Rivers Gray Iron scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on total case rate (tcr) (safer than 19%), 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

30/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 13.64 per 100 workers

Safer than 19% of industry peers

DART rate
F 6.04 per 100 workers

Safer than 27% of industry peers

Fatalities
D 0

Safer than 52% 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

−0.9

2023→2024

Dock Foundry LLC dba Three Rivers Gray Iron injury rate improved

Dock Foundry LLC dba Three Rivers Gray Iron's TCR fell 0.9 from 14.1 in 2023 to 13.2 in 2024. Peak filing year was 2023 at 14.1 TCR. In 2024, DART was 0.44× this establishment's average TCR (severity share of cases).

2023=14.1 · 2024=13.2

OSHA ITA Form 300A scorecard

Establishment book 331511 · Three Rivers, MI ABOVE-IND · MID

Grade F · TCR 13.6 · 413% of ind

  • DART 6.0 DART
  • RANK #20/25
  • PHOTO Waupaca Foundry, Inc…
  • BOOK 2y book
  • INJ 46 inj
  • SIZE ~163 FTE

Nearest TCR peer: Waupaca Foundry, Inc. Plant 7L Lawrenceville (0.0 TCR gap)

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

Dock Foundry LLC dba Three Rivers Gray Iron in the TCR neighbourhood

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

TCR

What this shows Dock Foundry LLC dba Three Rivers Gray Iron averages 13.6 TCR (413% of the Cast Iron Foundry BLS benchmark).

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

Dock Foundry LLC dba Three Rivers Gray Iron TCR series: 2023=14.1 · 2024=13.2 · BLS 3.3

Where Dock Foundry LLC dba Three Rivers Gray Iron falls in its industry

272 Cast Iron Foundry establishments

Safer than 19% of graded establishments in this industry, whose median TCR is 7.2.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 25 Cast Iron Foundry employers in Michigan.

Dock Foundry LLC dba Three Rivers Gray Iron (163 employees, TCR 13.6) among 29 same-industry peers, split at the industry median of 112 employees and a TCR of 7.2 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 0200400600 0510152025 Average employees Total Case Rate Dock Foundry LLC dba Three Rivers Gray Iron
Dock Foundry LLC dba Three Rivers Gray Iron (163 employees, TCR 13.6) among 29 same-industry peers, split at the industry median of 112 employees and a TCR of 7.2

Dock Foundry LLC dba Three Rivers Gray Iron has more employees than the Cast Iron Foundry median and a higher injury rate than the industry's median TCR of 7.2. 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 13.2 6.0 21 3 0
2023 14.1 9.6 25 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

331511 · MI · Three Rivers

272 Cast Iron Foundry employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 41 employers in Three Rivers, MI · 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 Waupaca Foundry, Inc. Plant 7L Lawrenceville 13.6 TCR
NAICS-TCR D&L Foundry Inc 13.6 TCR
NAICS-TCR Golden's Foundry & Machine Cordele 13.8 TCR
NAICS-TCR WHEMCO-Steel Castings Inc. (Midland Plant) 13.5 TCR
STATE-SIZE Muskegon Michigan 163 FTE
STATE-SIZE Saint Joseph 163 FTE
STATE-SIZE Akzo Nobel Vehicle Refinishes 163 FTE
STATE-SIZE 8462_19259 163 FTE
CITY-NEAR AAM TRMF 1,280 FTE
CITY-NEAR Three Rivers Health 481 FTE
CITY-NEAR Three Rivers Hospital 302 FTE
CITY-NEAR Armstrong International - Three Rivers Division 289 FTE
NAT-TCR Taos 13.6 TCR
NAT-TCR Beverage Div. 13.6 TCR
NAT-TCR Raveill Trucking Inc. 13.6 TCR
NAT-TCR Desert Compass Logistics LLC 13.6 TCR
NAT-SIZE Sheffield Pharmaceuticals, LLC - New London CT 163 FTE
NAT-SIZE Eton Plant 163 FTE
NAT-SIZE Pitt Ohio - Baltimore 163 FTE
NAT-SIZE Pitt Ohio - Columbus 163 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. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.