{"id":645,"date":"2026-03-09T07:31:34","date_gmt":"2026-03-09T07:31:34","guid":{"rendered":"https:\/\/www.hazardco.com\/au\/?p=645"},"modified":"2026-03-10T20:35:24","modified_gmt":"2026-03-10T20:35:24","slug":"excavation-safety-guide","status":"publish","type":"post","link":"https:\/\/www.hazardco.com\/au\/blog\/different-types-of-excavations-and-managing-the-risks\/","title":{"rendered":"Excavation work \u2013 what you need to know"},"content":{"rendered":"

Excavation work means digging or moving soil, rock, or other materials with tools or machinery. It is often done when constructing buildings, building retaining walls, or installing underground utilities such as pipes and cables. Before starting any excavation, it is essential to identify and mark the location of underground services like gas, water, and electricity lines to avoid damage and ensure safety.<\/span><\/p>\n

Common types of excavation<\/b><\/h2>\n

Here are a few types of excavation you\u2019ll often come across in residential construction:<\/span><\/p>\n

Cut & Fill<\/b>
\n<\/b>Also known as stripping excavation, this method is used to clear and level large areas. It involves removing loose or unstable material like rock, sand, or topsoil so you have a safe and even surface to work on.<\/span><\/p>\n

Pile Holes<\/b>
\n<\/b>These are usually dug with a backhoe, drill, or hydro excavator. Always cover and barricade pile holes as soon as possible, and make sure only those involved in the work are nearby. Keep an eye on any water buildup and pump it out if needed.<\/span><\/p>\n

Potholing<\/b>
\n<\/b>Potholing<\/span><\/a> is when you dig small holes to locate underground services before starting bigger works. Just make sure those holes are <\/span>covered when not in use \u2014it\u2019s an easy way to stop someone from tripping or getting hurt.<\/span><\/p>\n

Trenching<\/b>
\n<\/b>Trenching<\/span><\/a> is used to install or replace underground utilities, build retaining walls, or check what\u2019s under the surface. Trenches are long, narrow, and deeper than they are wide \u2014 which means they can be risky. The safest method depends on the depth, soil type, and what\u2019s around it, so always take care and plan it out properly.<\/span><\/p>\n

Large-scale excavations often need heavy machinery, so make sure you\u2019ve got <\/span>good traffic management controls in place too.<\/span><\/p>\n

Managing the risk<\/b><\/h2>\n

Excavation work is considered as <\/span>high risk, no matter how shallow or deep the dig is. If there\u2019s any chance of collapse, you need to complete a <\/span>Risk Assessment and put controls in place. You can find the HazardCo Task Analysis for excavation work in your Hub to help you get started.<\/span><\/p>\n

Covering or bridging<\/b><\/h3>\n

When you\u2019re covering holes or bridging shallow trenches, make sure whatever you\u2019re using is strong enough to handle the weight, things like heavy-duty plywood or steel plates designed for that job.<\/span><\/p>\n