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
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.
- F
- Failing Safety Record
- 13.6
- avg TCR · per 100 workers
- 3.3
- industry benchmark (BLS)
- 46
- recordable injuries tracked
Grade compares Dock Foundry LLC dba Three Rivers Gray Iron's OSHA Total Case Rate of 13.6 to the Cast Iron Foundry BLS benchmark of 3.3 (413% of benchmark) across 2 years of Form 300A filings (2016–2024). <a href="/methodology">See methodology</a> for reporting-limitation caveats.
Injury rate over time
Dock Foundry LLC dba Three Rivers Gray Iron's yearly Total Case Rate, against the 3.3 industry benchmark.
Where Dock Foundry LLC dba Three Rivers Gray Iron falls in its industry
281 Cast Iron Foundry establishmentsSafer than 21% of graded establishments in this industry, whose median TCR is 7.2.
Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 26 Cast Iron Foundry employers in Michigan.
Trend analysis for Dock Foundry LLC dba Three Rivers Gray Iron
Between 2023 and 2024, Dock Foundry LLC dba Three Rivers Gray Iron's Total Case Rate improved from 14.1 to 13.2 recordable injuries per 100 full-time workers, a 7% decrease across 1 year of OSHA reporting.
The safest year on record was 2024, at a TCR of 13.2, while 2023 saw the highest rate, at 14.1, a spread of 0.9 points between the best and worst reporting years. That's a comparatively narrow spread, suggesting a fairly consistent safety record across the 2 years with a usable rate on file, rather than one outlier year skewing the multi-year average.
Summed across those 2 reporting years, Dock Foundry LLC dba Three Rivers Gray Iron recorded 46 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 2-year trend above alongside establishment size, since a larger workforce naturally accumulates more raw incidents even at a lower per-100-worker rate.
Verify This Employer with OSHA
The 46 injuries, 3 illnesses shown on this page for Dock Foundry LLC dba Three Rivers Gray Iron are sourced from its own 2 years of mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source, name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.
Verify on OSHA Establishment SearchSource: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 331511 - Cast Iron Foundry.
DART Rate, Transparent Calculation (2024)
What is the DART rate formula?
DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.
11 DART incidents × 200,000 ÷ 364,231 hours worked = 6.04 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| Dock Foundry LLC dba Three Rivers Gray Iron (this establishment) | 13.64 | OSHA ITA Form 300A, 2-year avg |
| Gray iron foundries industry avg | 3.30 | BLS IIF, NAICS 331511 |
| Michigan state avg (all industries) | 4.73 | OSHA ITA, state-level rollup |
Industry benchmarks: Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (IIF) program
Reportable Incident Timeline
Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by Dock Foundry LLC dba Three Rivers Gray Iron to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.
- 2024: 24 reportable incidents · 21 injuries, 3 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2023: 25 reportable incidents · 25 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
Source: OSHA Inspection Information System (IMIS) - inspection case-number records
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 |
What this grade means for you
Use this grade as a relative read on Dock Foundry LLC dba Three Rivers Gray Iron's reported OSHA injury record versus its Cast Iron Foundry peers, not a verdict on whether any single site is safe today.
- At 413% of the Cast Iron Foundry benchmark, Dock Foundry LLC dba Three Rivers Gray Iron reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider Cast Iron Foundry sector, where injury rates vary widely, before comparing it in isolation. See the industry
- Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another
Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.
Frequently Asked Questions
What is Dock Foundry LLC dba Three Rivers Gray Iron's safety grade?
How many injuries has Dock Foundry LLC dba Three Rivers Gray Iron reported?
Similar Employers
Matched by safety record across the industry, by workforce size within Michigan, and by nearby establishments in Three Rivers - a different peer set than the category browse links below.
Similar TCR (~13.6)
Similar size (~163 workers)
Read our methodology - how this data is sourced, computed, and verified.
Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.