Oakland—Cal/OSHA has cited three contractors $147,315 for safety violations after investigating the collapse of a temporary mold (formwork) and vertical shoring at an Oakland construction site that sent 13 workers to the hospital.
On May 26, workers at 3039 Broadway, a 435-unit mixed-use project, were pouring concrete into elevated formwork when the shoring system supporting the formwork collapsed. The workers fell some 20 feet along with freshly poured concrete, reinforcing steel, timber framework, and tools and equipment.
When police and firefighters arrived, they found some of the workers hanging from the scaffolding while others were up to their knees in wet concrete. Others were struggling desperately with shovels to dig their co-workers out.
One worker’s injuries required surgery. Cal/OSHA’s investigation found that the formwork and vertical shoring system that collapsed were not properly designed, installed or inspected.
Cal/OSHA issued serious and serious accident-related citations to subcontractors Largo Concrete, Inc. and N.M.N. Construction, Inc. for $73,365 and $70,320, respectively, for:
- Failure to ensure that the formwork and vertical shoring were designed to safely withstand all intended loads;
- Failure to have calculations and drawings approved by a California registered civil engineer as required for vertical shoring over 14 feet tall; and
- Failure to ensure the shoring supports were erected on a level and stable base.
General citations were issued to general contractor Johnstone Moyer, Inc. for $3,630 in proposed penalties.
Cal/OSHA addresses safety requirements for concrete construction and vertical shoring in its Cal/OSHA Pocket Guide for the Construction Industry.