Other
excavation protection method
Pick ONE excavation protection method from the list for working in a trench over 4′ deep.
Research that topic online and in your WAC rules book
Write a one page double spaced essay (approx. 250, minimum, to 400) (Links to an external site.) words regarding the method, its implementation, the safety rules surrounding using that method quoting and citing from the WAC rules (no WAC citations, no credit!), and any other pertinent information you discover in your research.
Hydraulic Shoring
Trench Boxes
Timber Shoring
Manhole shields
Trenching Inspections
Sheet pilings