A trench box can be used in combination with other protective systems such as sloping and benching.
Trench box safety checklist.
Trench box extends at least 18 inches above the vertical wall of the excavation and to within 2.
Excavation checklists are used to perform safety inspections and risk assessments for excavation and trenching projects.
A safety checklist may prove helpful when employers.
Trench boxes must extend eighteen inches above the surface and be no more than two feet from the bottom of the trench.
Under that circumstance the trench box must extend 18 inches above the vertical part of the excavation walls to keep dirt rocks and other debris from rolling into the trench.
Daily worksite checklist for trenching excavation sites.
Surface encumbrances such as utility poles heavy equipment supported or removed.
A trench is defined as a narrow underground excavation that is deeper than it is wide and is no wider than 15 feet 4 5 meters.
All employees at worksite trained in trenching safety procedures.
The occupational safety and health administration s osha excavation standards 29 code.
Trenching and excavation safety 1 introduction excavation and trenching are among the most hazardous construction operations.
Excavation checklists are an essential tool used during pre operations to evaluate the jobsite utilities and equipment access means area atmosphere and support systems to identify problems before they occur.