A crane picking up a piece of steel or a mechanical unit looks routine right up until it isn't. Most crane incidents trace back to a skipped step: a ground condition nobody checked, a rigging angle nobody calculated, a load chart nobody re-read after the boom angle changed. A lift plan exists to catch those gaps before the hook ever moves.

This checklist is built around what OSHA 1926 Subpart CC expects, what ASME B30.5 outlines for mobile cranes, and what actually shows up in incident reports when lift plans are skipped or rushed.

What Counts as a "Critical Lift"

Not every pick needs a full written lift plan, but every crane operation needs at least a basic plan. A lift typically graduates to "critical" status when any of these apply:

The load exceeds 75% of the crane's rated capacity at the working radius
Two or more cranes are lifting the same load (a tandem or dual lift)
The lift happens near energized power lines, within minimum approach distances
The load passes over occupied areas, active roadways, or other trades
Personnel are lifted in a basket or platform
The rigging configuration is non-standard or the load's center of gravity is uncertain
The crane will operate on a slope, near an excavation, or on fill that hasn't been compacted and tested

Critical lifts need more signatures, more documentation, and often a pre-lift meeting that includes the operator, rigger, signal person, and site superintendent. Routine lifts still need a plan, just a shorter one.

The Crane Lift Plan Checklist

1. Crane Selection and Setup

Confirm the crane's rated capacity chart matches the actual configuration: boom length, counterweight, outrigger spread, and lift radius
Verify the crane has a current annual inspection certificate and that daily/monthly inspections are logged
Check that the operator holds a valid certification for this crane type and capacity class
Confirm outriggers are fully extended (or match the plan's partial-extension chart) and set on cribbing rated for the ground bearing pressure
Verify the ground has been evaluated for bearing capacity, including buried utilities, voids, and recent excavation or backfill nearby

2. Load Information

Document the exact weight of the load, including rigging weight, not just the nominal item weight
Identify the load's center of gravity, especially for irregular or asymmetrical pieces
Confirm the load weight against the manufacturer's data or an engineered weight calculation, not a field guess
Note any load-specific handling requirements (fragile components, pressurized vessels, suspended loads with liquid)

3. Rigging Plan

Specify sling type, length, and rated capacity for the configuration being used
Calculate sling angles and confirm the reduced capacity at that angle is still above the load weight
Identify all rigging hardware (shackles, spreader bars, lifting lugs) with rated capacities matching or exceeding the load
Confirm rigging has a current inspection tag and no visible wear, cuts, or corrosion
Assign a qualified rigger to inspect rigging immediately before the lift, not just at the start of the shift

4. Site and Environmental Conditions

Check wind speed against the crane manufacturer's operating limits for this load and configuration
Confirm the swing radius and travel path are barricaded and clear of personnel
Verify minimum approach distance from power lines per voltage, per OSHA 1926.1408
Review ground slope and recent weather; wet or frozen ground changes the bearing capacity assumptions from the original setup
Identify overhead obstructions: structures, other equipment, adjacent crane booms

5. Personnel and Communication

Confirm a dedicated signal person is assigned and both operator and signal person agree on the signal system before the lift starts
Verify radio communication works and has a backup if radios fail
Confirm the lift plan has been reviewed with everyone involved, including trades working nearby who need to clear the area
Identify a single point of authority who can stop the lift at any time, and make sure everyone on site knows who that is

6. Lift Sequence

Walk through the lift path step by step: pick point, travel path, set point
Identify tag line use for load control during travel
Plan for a trial lift (a few inches off the ground) to verify rigging and load balance before the full pick
Confirm a set location, including blocking, cribbing, or temporary supports for the load once landed

7. Documentation and Sign-Off

Lift plan reviewed and signed by the crane operator, rigger, and site superintendent before work begins
Pre-lift meeting documented with attendee names and date
Load chart, rigging specs, and site sketch attached to the plan
Weather and ground conditions logged at time of lift, not just at time of planning

Routine Lift vs. Critical Lift: What Changes

Checklist Item	Routine Lift	Critical Lift
Written lift plan	Basic form, single page	Full engineered plan with sketches
Load chart verification	Operator confirms	Operator + superintendent confirm
Pre-lift meeting	Verbal briefing	Documented meeting, signed attendance
Rigging engineering	Standard rigging tables	Engineered rigging calculations, possibly third-party review
Sign-off	Operator and rigger	Operator, rigger, superintendent, and often a competent person or engineer
Power line proximity	Standard minimum approach distance	Spotter dedicated solely to monitoring distance
Weather thresholds	Manufacturer's standard limits	Tighter limits, often set by project policy

The distinction matters because treating every lift like a critical lift burns time nobody has, and treating a critical lift like a routine one is how cranes tip over or contact power lines.

Common Gaps That Show Up in Incident Reports

A few patterns repeat across crane incident investigations:

Load weight was estimated, not calculated. Steel fabricators and equipment manufacturers can usually provide exact weights. When the number comes from a guess or an old spec sheet, the margin of error can exceed the crane's safety factor.

Ground conditions changed after setup. Rain the night before a lift, or a nearby excavation crew that backfilled loosely, can shift bearing capacity without anyone re-checking it. Lift plans should note when ground conditions were last verified, and that date should be recent.

The sling angle wasn't recalculated after a last-minute rigging change. A 60-degree sling angle and a 30-degree sling angle put very different loads on the same sling. Field substitutions happen; the capacity math needs to happen too.

Signal person and operator used different hand signal systems. This sounds basic, but crews from different subcontractors sometimes use slightly different conventions. Confirming this takes thirty seconds and prevents real confusion mid-lift.

Building the Plan Into Your Daily Workflow

A lift plan that lives in a binder nobody opens doesn't protect anyone. The best approach ties the lift plan to the daily pre-task planning process: the crew reviews it at the start of the shift, references it again before each critical pick, and updates it if conditions change midday.

Some crews also use the crane lift plan as the basis for a toolbox talk that morning, walking the whole crew through the rigging configuration, the swing radius hazards, and who has stop-work authority. That ten-minute conversation catches questions before the crane is rigged, not after. Site Safety AI can generate that toolbox talk directly from your site conditions and the day's lift plan, so the content matches what's actually happening on the ground rather than a generic crane-safety script.

Final Check Before the Signal Person Gives the Go-Ahead

Before any pick, confirm out loud, as a crew: the load weight is documented, the rigging is inspected and rated for the angle being used, the ground under the outriggers has been verified today, the swing path is clear, and everyone knows who can call a stop. If any one of those isn't a clear yes, the lift waits. A five-minute delay costs far less than the aftermath of a dropped load or a tipped crane.

FAQ

What OSHA standard governs crane lift plans?

OSHA 1926 Subpart CC covers cranes and derricks in construction, including operator certification, ground conditions, and power line clearance. ASME B30.5 provides additional technical guidance for mobile crane operations that many lift plans reference directly.

Does every crane lift need a written lift plan?

Every lift needs some level of planning, but a full written lift plan with engineering review is typically required for critical lifts: loads over 75% of capacity, tandem lifts, personnel lifts, or picks near power lines or occupied areas. Routine lifts still need a documented basic plan and operator sign-off.

Who should sign off on a crane lift plan?

At minimum, the crane operator and the qualified rigger should review and sign the plan. For critical lifts, the site superintendent and often a competent person or engineer should also sign off before the lift proceeds.

How often should ground conditions be re-verified for crane setups?

Ground bearing capacity should be checked at setup and re-verified any time conditions change, such as after rain, nearby excavation, or backfill work. For multi-day lifts on the same pad, many crews re-check ground conditions daily before the first pick.

What's the difference between a routine lift and a critical lift?

A critical lift typically involves a load near the crane's rated capacity, multiple cranes, personnel lifting, or proximity to power lines or occupied spaces. Critical lifts require more detailed engineering, a documented pre-lift meeting, and additional sign-offs compared to routine picks.

Crane Lift Plan Checklist: What to Verify Before Every Pick