Building a Pre-Climb Risk Assessment Habit

Risk assessment that only happens on the "sketchy" jobs isn't risk assessment — it's intuition, and intuition has bad days. The crews that go years without a serious incident share one trait: they run the same structured check on every tree, including the boring ones. Routine is what catches the hazard you'd otherwise have walked past.

Why habit beats vigilance

Vigilance is a finite resource. Ask anyone to "be careful" on job number seven of a long Friday and you're relying on willpower that's already spent. A habit doesn't depend on how you feel. When the assessment is a fixed sequence you run before every climb, the tired version of you still catches the dead top, because the sequence — not your mood — does the checking.

The three-zone scan

Build the habit around three zones, every time, in order:

1. The site

Before the tree, read the ground around it.

• Electrical hazards. Identify every conductor and assume it's live. Maintain qualified clearances; if the work is inside the minimum approach distance, it's a line-clearance job with line-clearance rules, not a normal climb.
• Targets and drop zones. People, structures, vehicles, the neighbor's glass sunroom. Where does a dropped piece go, and where does it go if it goes wrong?
• Access and egress. How does an injured climber come down? How does the gear go up? Where does the bucket or chipper sit?
• Conditions. Wind, ice, heat, light, footing. Weather changes the answer.

2. The tree

This is the architecture read — done deliberately, not by feel.

• Species and its known failure habits. Some genera shed limbs; some drop tops; some hide decay well.
• Lean, root plate, and recent movement. Lifting soil, cracks, a leaning stem that's getting worse.
• Defects: included bark, codominant stems, cavities, conks and fruiting bodies, cracks, deadwood, hangers, old failures.
• Decay. Sound the stem and the limbs you'll load. A dull thud is information.

3. The work

Now connect the plan to what you found.

• Tie-in points and work-positioning limbs — chosen, not improvised at height.
• The system: climb it, or does it need a lift, a crane, or a ground-based removal?
• Rigging loads, including whether you'll be forced negative and what that does to your hardware.
• Bail-out: if the tree behaves differently than you read it, what's the plan?

Make it stick

A habit needs a trigger, a script, and a way to not be skipped.

• Anchor it to a fixed cue. "Before I flake the line, I do the scan." Same trigger every time.
• Say it out loud. A spoken assessment shared with the groundie does two things: it forces you to actually form the judgment in words, and it puts a second brain on it. The person on the ground often sees the hanger you can't.
• Use a card or app, especially while it's new. A pre-climb checklist isn't an admission you can't remember — it's how the routine survives a bad day. After a few hundred reps it's internal; until then, the prompt carries it.
• Brief the whole crew, not just the climber. A job briefing where everyone names the hazards, the drop zones, and the comms plan turns one person's assessment into the crew's shared model.

When the answer is "no"

The most important output of a real assessment is the willingness to use it. A habit that can only ever conclude "proceed" is theater. Sometimes the honest read is not today, not like this — wrong conditions, wrong equipment, decay you don't trust. Stopping is the assessment working. Crews that normalize the no are the crews that keep everyone.

The goal isn't to slow the job. A practiced scan costs a couple of minutes and runs on autopilot. What it buys you is that the hazard gets caught by the procedure — every tree, every time — instead of by luck.