WORKSAFEBC BULLETIN – Tandem LIfts from Barges to Land
19 September 2017
A forklift and a log loader were unloading a bundle of metal culverts off a barge in a tandem lift. The log loader was pulling on a chain that was wrapped around the bundle of culverts when the chain snapped. A piece of the broken chain struck and seriously injured a worker on the ground who was helping with the unloading operation.
Unloading long and heavy loads, such as culvert bundles or modular bridges, from a barge onto land is a frequent activity aong the west coast of British Columbia. Unloading usually involves two pieces of mobile equipment (a tandem lift).
Most of the time there are at least two independent employers involved — the shipping service on the barge and the receiving client on the land. The two companies may be unfamiliar with each other's operational plans or priorities so it's important for the companies to communicate with each other about the lift. A lack of coordination between the companies can increase the risk of an incident occurring.
What are the hazards?
There are a number of things that can go wrong when doing a tandem lift from barge to land:
- Loss of stability or control of the equipment involved in the lift
- Rigging failure
- Loss of the load
- Workers on the ground getting in the bight of the equipment and the load
Those at risk include equipment operators, workers on the barge, and workers on the landing.
How to prevent similar incidents
Learn more about:
→ determining load weights,
→ communicating with hand signals,
→ inspecting slings and hardware,
→ making basic lift plans and more.
For more details and information, see Rigger Training & Certification.
- Load — Know the weight and distribrution of the load to be lifted
- Equipment — Ensure that the equipment used is capable of safely performing the lift.
- Rigging slings — Determine the working load limit of the rigging sling and ensure it is not exceeded during the lift.
- Lift plan — Prepare a written lift plan and instruct workers in the plan. The supervisors for each of the employers involved must ensure that all hazards are identified and risks are communicated to everyone involved in the lift. Make sure the plan is available at the worksite during the lift.
- Communication — Establish and maintain effective communication between everyone involved in the lift.
The prevention requirements listed in this bulletin are specified inthe following sections of the Occupation al Health and Safety Regulation:
- Load — 14.36 and 14.42(3)(e) Equipment — 4.3(1)
- Rigging slings — 4.3(1) and 15.30
- Lift plan — 14.42(2) and 14.43
- Communication — 14.42(5) to (7)
- Safety Alert: Fatality
Go to bcforestsafe.org and search for "unloading barge"
- Forest Industry Safety Alert: Grader left suspended as barge slips from position
Go to bcforestsafe.org and search for "barge slips"
Download the WorkSafe Bulletin.
WorkSafeBC Prevention Information Line: 604.276.3100 or toll free 1.888.621.SAFE (7233)
SAFETY NOTICE 170012 – Wear Pads
25 July 2017
– Mandatory Action Required –
Genie Industries has found that weld debris in the boom tubes could lead to premature and excessive wear of the upper wear pads. This excessive wear can lead to potential damage to the boom tubes and could cause the platform to drop.
- Locate the affected machines referenced above within your fleet.
- Using the table below, order the appropriate kit to replace the wear pads on your machine. Model / Kit PN
SX-150 / 1280093GT
SX-180 / 1280092GT
Completion of this Safety Notice must be done as soon as possible but no later than 30 days from receipt of the kit.
- Fill out and sign the completion form included in this Safety Notice or attached to the installation instructions included in the kit and fax or email to Terex AWP Warranty Department. This will serve as verification that you have completed Safety Notice 170012.
Continued Use Instructions:
All machine operators and users must be notified of these continued use requirements.
The affected machines may remain in service until this Safety Notice is completed, provided that inspection for wear pads is included as part of the pre-operation inspections outlined in the machine's Operator's Manual.
For more details and information on how to order parts and warranty, please see Genie Safety Notice 170012.
Two-Blocking Damage Prevention
25 March 2014
We have noticed a dangerous situation occurring amongst folding boom crane owners and operators. Folding booms equipped with winches require a device to prevent two blocking.
Wording of OHS regulations references that the requirement for anti-two block devices was repealed in 2006. This change only applies to the wording.
BC OHS regulations require articulating (folding) boom cranes to adhere to ANSI / ASME B30.22-2005 which states that folding boom cranes equipped with a winch must be equipped with a feature to prevent damage from two-blocking.
This hazard alert from WorkSafe BC June 2012 describes the dangers to workers and equipment from two blocking: Hazard Alert: Worker struck by load after articulating boom crane "two-blocks"