How Do You Write a Construction Incident Report?

By Wyatt Cooper · Published · 7 min read

Key takeaways

  • Get the injured person care first, secure the scene, and decide within the hour whether the employer must report to OSHA: 8 hours for a fatality, 24 for an in-patient hospitalization, amputation or loss of an eye.
  • Write facts, not conclusions: what the worker was doing, what happened, the injury and the object that caused it, in the words OSHA's Form 301 asks for.
  • Look past the immediate cause: if a rule wasn't followed, ask why, until you reach something the company can change.
  • The report's facts decide recordability: sutures make a cut recordable, butterfly bandages or Steri-Strips alone do not, and a recordable case goes on the employer's OSHA 300 log within 7 calendar days.

Write a construction incident report the same day: who was hurt and their employer, when and where, what they were doing, what happened, the injury, the object or substance that caused it, the treatment given, witnesses, and photos. Then find the root cause and the corrective action. The facts decide whether the employer must report to OSHA within 8 or 24 hours and whether the case goes on its OSHA 300 log.

The first hour: care, scene, reporting

  1. Get the injured person care. Call 911 or take them to the care your site plan names.
  2. Make the area safe and keep it as it was: barricade it, leave tools and materials in place, and photograph everything before anything moves.
  3. Find out whose employee it is. On a multi-employer site the GC's superintendent should hear at once, but the injured worker's employer does the recording and reporting.
  4. Decide whether OSHA must be told. 29 CFR 1904.39 requires a report within 8 hours of a work-related fatality, and within 24 hours of an in-patient hospitalization, an amputation or the loss of an eye.
  5. Take witness statements while memories are fresh, each in the witness's own words, signed and dated.

The report to OSHA goes by phone or in person to the nearest Area Office, to 1-800-321-OSHA (1-800-321-6742), or through the reporting application on osha.gov; a message on a closed office's answering machine doesn't count (1904.39). OSHA defines in-patient hospitalization as "a formal admission to the in-patient service of a hospital or clinic for care or treatment", and a hospital stay for observation or diagnostic testing only is not reportable.

What the report records

The facts an incident report needs, and where OSHA's Form 301 asks for the same thing
FieldWhat to writeForm 301
The workerName, employer, trade, date hired, time they started work that dayFields 1–5 (name, address, birth date, date hired, sex) and 12; job title goes on the 300 log
When and whereDate, time, the exact place on site (level, gridline, room)Fields 11 and 13; the place goes on the 300 log (column E), not the 301
What they were doingThe task and the tools, equipment or material in useField 14
What happenedThe sequence of events, in plain wordsField 15
The injuryThe part of the body and how it was affectedField 16
What caused itThe object or substance that directly harmed the workerField 17
TreatmentFirst aid on site, clinic or emergency room, admitted or not, who treatedFields 6–9
Witnesses and photosNames, employers, statements, photo listNot on the form; keep with the report
Root cause and corrective actionWhy it happened and what changes, with an owner and a dateNot on the form; keep with the report

A recordable case needs an OSHA Form 301 "or an equivalent form" within seven calendar days of learning about it (1904.29). An equivalent form "has the same information, is as readable and understandable, and is completed using the same instructions" as the OSHA form, so a company incident report that covers fields 1–18 can be the 301 (1904.29(b)(4)). The form asks that fields 14 to 17 carry no personally identifiable information such as names or phone numbers.

Find the root cause, not someone to blame

OSHA's incident investigation page warns: "It is far too easy, and often misleading, to conclude that carelessness or failure to follow a procedure alone was the cause of an incident." It asks why the rule wasn't followed, whether production pressure played a part, and whether the procedure was out of date or the training inadequate (OSHA, Incident Investigation). It also encourages investigating close calls, "in which a worker might have been hurt if the circumstances had been slightly different."

Ask why until the answer is something the company can change: a material that should have been hoisted, a schedule that pushed a crew, a missing step in the task's hazard analysis. "Worker was careless" ends the investigation without fixing anything.

A worked example: one report, start to finish

Incident report — Harbor View Offices, Level 2, case 1

Worker
Sheet metal apprentice, Ridgeline Mechanical (supervised day to day by Ridgeline's foreman); hired March 2025; started work 7:00 AM
When and where
Thursday, 10:20 AM; Level 2, east corridor at gridline C-4
Doing
Climbing a 6-foot stepladder carrying a 5-foot section of rectangular duct in one hand
What happened
The duct shifted as he climbed; he caught it with his left hand and the duct's raw edge cut his palm. He did not fall
Injury
Laceration, left palm, about 1.5 inches
Caused by
Unhemmed edge of galvanized sheet-metal duct
Treatment
Cleaned and covered on site; urgent care closed it with 4 sutures; back to full duty the same afternoon; not admitted
Report to OSHA?
No: no fatality, in-patient hospitalization, amputation or loss of an eye
Recordable?
Yes: sutures are medical treatment beyond first aid. Ridgeline enters it on its OSHA 300 log within 7 calendar days, under other recordable cases
Root cause
Duct was carried up the ladder because no material lift was staged on Level 2 that morning; the task's hazard analysis didn't cover moving duct to the work
Corrective action
Material lift staged on each level before duct installation (GC super, by Monday); cut-resistant gloves for duct handling (Ridgeline foreman, by Friday); hazard analysis revised
A filled-in incident report for a fictional mechanical sub on a fictional office job.

The ladder standard already says "An employee shall not carry any object or load that could cause the employee to lose balance and fall" (1926.1053(b)(22)), so the corrective action answers why the duct was carried at all. Under 1904.7, "using butterfly bandages or Steri-Strips" is first aid, while sutures and staples are medical treatment: had urgent care closed the cut with Steri-Strips alone, the case would not have been recordable. It is Ridgeline's case to record, not the GC's, because 1904.31 puts it on the log of the employer that supervises the worker day to day.

How to enter it, column by column, is in how to fill out the OSHA 300 log. Note the incident in the accidents part of that day's daily log too, without the medical details. For the GC's wider job, see the general contractor's guide.

The bottom line

Care first, then the scene, then the 8- or 24-hour reporting decision. Write the facts the way Form 301 asks for them, find a root cause the company can change, and let those facts decide whether the case goes on the 300 log.

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Sources

  1. Incident Investigation — Occupational Safety and Health Administration. Read October 22, 2026.
  2. 29 CFR 1904.39, Reporting fatalities, hospitalizations, amputations, and losses of an eye — eCFR (Office of the Federal Register). Read October 22, 2026.
  3. 29 CFR 1904.29, Forms — eCFR (Office of the Federal Register). Read October 22, 2026.
  4. 29 CFR 1904.7, General recording criteria — eCFR (Office of the Federal Register). Read October 22, 2026.
  5. 29 CFR 1904.31, Covered employees — eCFR (Office of the Federal Register). Read October 22, 2026.
  6. 29 CFR 1926.1053, Ladders — eCFR (Office of the Federal Register). Read October 22, 2026.
  7. OSHA Forms for Recording Work-Related Injuries and Illnesses (300, 300A, 301) — Occupational Safety and Health Administration. Read October 22, 2026.

Questions

Is an incident report the same as OSHA Form 301?

Not necessarily. Form 301 is required for each recordable case, within 7 calendar days. Your own incident report can serve as the 301 if it is an equivalent form: the same information, as readable, and completed with the same instructions.

When does a construction injury have to be reported to OSHA?

Within 8 hours of a work-related fatality, and within 24 hours of a work-related in-patient hospitalization, amputation or loss of an eye. Report by phone to the Area Office or 1-800-321-6742, in person, or online at osha.gov.

Who writes the report when a sub's worker is hurt?

The sub, as the employer, records and reports its own employee's case. The GC usually requires a copy under the site plan and runs its own review of site conditions. Agree who investigates before the job starts.

Should near misses get an incident report?

OSHA encourages investigating close calls as well as injuries. A short report on a near miss, with its root cause and corrective action, is often the cheapest fix a job gets.