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Serious Incident Reporting on a Calgary Concrete Site: Two Clocks and One Scene You Cannot Touch

Serious Incident Reporting on a Calgary Concrete Site

Table of Contents

Incident Reporting

When a worker is hurt badly on a pour, three obligations start at once: you call Alberta OHS, you leave the scene alone, and you file separately with WCB. They are governed by different rules, run on different clocks, and the mistake we see most often is a site that handles the first one well and then quietly breaks the second within the hour — usually by doing something entirely reasonable, like dragging the collapsed form section out of the way so the crew can finish the wall.

This page sets out what has to be reported, who has to report it, what you are allowed to touch afterward, and where the WCB duty sits. It is written for the person who will actually be standing there: the prime contractor’s superintendent, the foreman, the owner who picks up the phone.

What you must report to Alberta OHS

Report immediately, by phone, if any one of the following happens. Alberta’s list is short and specific, and it does not depend on fault, on whether the worker is yours, or on whether anyone intends to make a claim.

TriggerWhat it means on a concrete site
A worker dies at work, or from an illness connected to the work siteReported regardless of the cause being obvious or not
A worker has been, or will be, admitted to hospitalAdmission is the test. A trip to emergency or urgent care that ends in discharge is not, on its own, an admission
An unplanned or uncontrolled explosion, fire or flood that causes or has the potential to cause serious injury or illnessA hoarding fire around a winter pour, a flooded excavation
The collapse or upset of a crane, derrick or hoistIncludes the picker setting panels or lifting a hopper
The collapse or failure of any component of a building or structureFormwork, falsework, shoring, a wall section, a slab under load

Two of those five are the ones that catch concrete work. “The collapse or failure of any component of a building or structure” is broad on purpose, and formwork failure sits squarely inside it — a blowout on a tall wall is a reportable event even when nobody is scratched. And the hospital test is an admission test, not an ambulance test. A worker who leaves in an ambulance, gets stitched and sent home, has not triggered that line. A worker kept overnight for observation has.

The number to call is 1-866-415-8690 toll-free, or 780-415-8690 in the Edmonton area. Alberta’s standard is “as soon as possible” — in practice, from the site, once the injured person is being cared for.

The one that gets missed: a potentially serious incident

The category that almost nobody has in their back pocket is the potentially serious incident, or PSI. Alberta defines it as any incident where:

  • the injury sustained requires medical attention beyond first aid; or
  • an incident could have caused serious injury and the hazard was not identified in the hazard assessment; or
  • the identified hazard had not been reasonably controlled.

Read the second and third bullets again, because they describe a near miss. Nobody has to be hurt. If a bundle of rebar slides off a stack and lands where a finisher was kneeling four seconds earlier, and your hazard assessment for that day said nothing about stacked bundles on a sloped grade, you have a reportable PSI. If the assessment did identify it but the control was a verbal reminder nobody followed up on, you still have one.

This is the provision that rewards a well-built hazard assessment and punishes a generic one. A hazard assessment that actually names the day’s conditions — the slope of the grade, the line pump running over the sidewalk, the hoarding and the fuel-fired heater — is also the document that keeps ordinary near misses out of the reportable column. After 38 years of pours in this city, that is the single piece of paperwork we would protect first.

Who makes the call

The duty sits with the prime contractor. If there is no prime contractor on the site, it falls to the employer. The same answer applies to the investigation that follows: the prime contractor investigates any reportable injury or incident, and only where there is no prime contractor does the employer take it on.

This matters on a concrete scope because the injured worker is frequently not the prime contractor’s employee. The pump operator works for the pumping company. The rebar placer works for the rebar sub. The duty to pick up the phone does not follow the paycheque — it follows the role on that site. Sorting out who holds that role before the first truck arrives is part of the same coordination work that keeps a schedule intact, and we have written separately about the coordination failures that quietly delay concrete projects.

The scene: what you may and may not touch

Once an incident is reportable, section 33(2) of the Occupational Health and Safety Act stops you from disturbing the scene. You cannot alter, move or remove equipment, documentation or other information.

There are four exceptions, and they are narrow:

  • with the permission of an OHS officer or a police officer;
  • to attend to a person who is ill, injured or killed;
  • to prevent further injuries, illnesses or incidents; or
  • to protect property endangered by the incident.

Notice what is not on that list: cleaning up, finishing the pour, getting the pump off the street, or taking the broken strongback to the shop so the next shift can keep going. “To protect property endangered by the incident” covers shoring a wall that is still moving. It does not cover protecting the schedule.

The documentation half of the rule is the part crews forget. The inspection sheets, the pour card, the pump operator’s log, the delivery tickets, the daily hazard assessment — those are “documentation or other information.” They stay where they are. So do the photographs on somebody’s phone, which is to say: take them, and do not take them instead of leaving the physical scene intact.

A practical sequence that keeps you inside the rule:

  1. Care for the injured worker. Nothing in the Act slows this down.
  2. Stop work in the affected area and stabilize anything that is still a live hazard.
  3. Call OHS. Ask, on that call, what you may move.
  4. Photograph widely before any permitted movement, including the paperwork in place.
  5. Leave the rest. Put a person on it if you have to.

Jobs with a well-run pre-pour discipline tend to handle this well, because the habit of stopping and documenting is already there — the same habit behind the pre-backfill inspection checklist and behind a disciplined boom-pump-or-line-pump decision made before the truck is on site rather than after.

The second clock: WCB

The WCB obligation is separate, and it is the one most often missed because the OHS call feels like it covered everything. It did not.

An employer must report to WCB-Alberta within 72 hours after becoming aware of an injury or illness. The duty is created by the Workers’ Compensation Act, and — in a coincidence worth remembering — the failure-to-report provision is also a section 33, this time of a different statute. Two section 33s, two clocks, two agencies.

The WCB test is not the hospital test. You report if the accident results in, or is likely to result in, any of:

  • lost time, or the need to temporarily or permanently modify work beyond the date of accident;
  • death or permanent disability, such as an amputation or hearing loss;
  • a disabling or potentially disabling disease or condition caused by occupational exposure;
  • the need for medical or mental health treatment beyond first aid; or
  • medical aid expenses, such as dental treatment, eyeglass repair or replacement, or prescription medications.

That is a far lower bar than the OHS list. A finisher who needs three stitches and comes back on light duty the next morning is a WCB report and is probably not an OHS report. A formwork blowout that hurts nobody is an OHS report and is not a WCB report. They overlap; they are not the same set.

WCB’s policy is explicit that late or missed reporting can bring an administrative penalty, an audit of your accident and claims records and reporting practices, investigation costs charged back to you, disqualification from optional premium pricing programs, and prosecution in extreme cases. For a contractor who manages premiums carefully — and whose safety record is checked by every general contractor they bid to, as we covered in our piece on EMR, COR and how builders vet a concrete crew — the pricing-program consequence is usually the one that bites hardest.

The investigation report

For any reportable injury or incident, a written report has to be prepared. It must set out the circumstances of the incident and what, if anything, can be done to prevent another one. It is prepared with the participation of the joint health and safety committee or the health and safety representative where one exists, and it goes to that committee or representative. Where there is neither, the report has to be made available to workers. An OHS officer can ask for it, and you provide it on request.

Keep a copy readily available for at least 24 months.

“Readily available” is doing real work in that sentence. A report that exists in a consultant’s archive and cannot be produced from the site office in an afternoon is not readily available. Build the retention into the same job-file discipline that holds your pour records, and the request is a five-minute task instead of a week of searching.

What this looks like on three Calgary pour days

What happenedOHS report?WCB report?Scene
Strongback lets go on a tall wall, no injuries, forms and fresh concrete on the groundYes — failure of a structural componentNoFrozen. Stabilize only
Finisher gashes a hand on a stake, four stitches at a clinic, light duty next dayNo admission, no PSI trigger if the hazard was assessed and controlledYes — treatment beyond first aid and modified workNormal, but document
Labourer struck by a swinging hopper, taken in and admitted overnightYes — admissionYesFrozen. Call before moving the picker

Three events, three different answers. That is the reason we keep this decision with one named person on site rather than leaving it to whoever is nearest the phone.

Where this page stops

This page covers reporting and the scene. It does not cover excavation and trench protection, respirable dust control, vibration exposure, first aid provisions and working alone, powered mobile equipment training, confined space entry, or the prime contractor’s broader duties — each of those is its own body of rules, and several have their own article on this site. It is general information about Alberta requirements, not legal advice, and the authoritative text is the Act and Code themselves.

Frequently asked questions

Does a trip to emergency have to be reported to OHS? Not on its own. The test is admission to hospital. Emergency room and urgent care visits that end in discharge are excluded from that trigger — though the same event may well be a potentially serious incident, and is very likely a WCB report.

Do I report a near miss where nobody was hurt? Yes, if the incident could have caused serious injury and the hazard was either missing from your hazard assessment or was identified but not reasonably controlled. That is the potentially serious incident category.

Can I move equipment to make the site safe after an incident? Yes, to prevent further injuries or incidents, to attend to an injured person, or to protect property endangered by the incident. Outside those exceptions you need permission from an OHS officer or a police officer. Ask on the reporting call.

Who reports when the injured worker belongs to a subcontractor? The prime contractor. If there is no prime contractor on that site, the employer reports.

Is the OHS call enough, or do I still file with WCB? You still file with WCB, within 72 hours of becoming aware of the injury or illness. The two obligations are independent and the tests are different.

How long do I keep the investigation report? At least 24 months, and readily available rather than merely archived.

Talk to a crew that has already built this into the day

Reporting duties are easiest to meet on a site where somebody owns them before anything goes wrong — where the hazard assessment is specific, the pour card is where it should be, and the person who calls OHS is named at the pre-pour meeting rather than chosen in the moment.

That is how we run concrete scopes, across 52,000+ projects and counting, from residential foundations to commercial and structural concrete walls across Calgary and the surrounding towns. If you are putting a wall, foundation or structural pour out to tender and you want a crew whose safety administration holds up under a request from an officer, call us and ask how we would staff the paperwork on your job.

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