Rochester, MN ·
OSHA Injury Report: Tonna Mechanical, Inc.
Injury · Job transfer or restriction
At a glance
On , an injury at Tonna Mechanical, Inc. in 1440 Industrial Dr NW, Rochester, MN 559010831 resulted in job transfer or restriction. Employee was commercial hvacr Installer in plumbing and heating contractors.
Where did this happen?
- Establishment
- Tonna Mechanical, Inc.
- Parent company
- Tonna Mechanical, Inc.
- Street
- 1440 Industrial Dr NW
- City
- Rochester
- State
- MN
- ZIP
- 559010831
- On-site location
- Commercial jobsite – mechanical room
What was the outcome?
- Outcome
- Job transfer or restriction (code 3)
- Type
- Injury (code 1)
- Days restricted or transferred
- 9
Before the incident
The employee was insulating ductwork overhead while working from an 8-foot step ladder.
What happened
While performing overhead insulation work the ladder tipped and the employee fell to the floor.
Injury or illness
Right foot contusion and back soreness.
Object or substance involved
Step ladder floor surface.
Summary line
Injury from fall off ladder due to floor drain grate
Employee and industry
- Job description
- Commercial HVACR Installer
- SOC code
- 49-9021: Heating, Air Conditioning, and Refrigeration Mechanics and Inst
- NAICS code
- 238220: Plumbing and heating contractors
- NAICS vintage
- 2022
- Employees at this establishment (2025 average)
- 91
- Hours worked at this establishment (2025 total)
- 162,038
- EIN
- 411269382
- Establishment ID
- 1436326
- Employer case #
- 9
When (timing detail)
- Date of incident
- Shift started
- 07:00
- Time of incident
- 11:15
- Filing year
- 2025
- Submitted to OSHA
- 2026-01-22
More injuries at Tonna Mechanical, Inc.
View Tonna Mechanical, Inc.'s full OSHA safety record →
More injuries in this industry (NAICS 238220)
More injuries in MN
Source
Data from OSHA ITA Form 300/301 electronic submissions, filing year 2025. ITA Case Detail records are establishment-reported submissions, not OSHA inspections, so no per-record IMIS deep link exists.
Look up any company's OSHA accident reports by company, or browse severe injury reports by year, state, and company.