12th November 2021
Excavation, As Defined By The End Goal

Performing excavation work is a fairly standard way to start a civil project, whether you're trying to build a library or just put up some guard rails along the edge of your road. However, with varying conditions all across the state, it can be hard to pre-determine what type of excavation you'll need if you're using the materials you need excavated to perform the classification. In those instances, it can be better to classify the excavation work by purpose, and fortunately, that's something our team can help you with.

Stripping & Roadway
If you're just removing any material between the original surface of a location and whatever lower layer that will be acceptable to form a permanent embankment upon, then the work you're performing is called stripping. Once you've finished that work, if you continue digging towards either a finished subgrade or the bottom of the base course for the purposes of installing a road, then that is roadway excavation, though typically, stripping is simply made a part of that process.

Drains & Bridges
If you're not building a bridge, all other excavation related to the installation of drainage is referred to as drainage excavation. Generally, these structures are referred to as minor drainage structures, and will typically be a culvert or roadway pipe. If, instead, you are building a bridge and are thus performing excavation for the purpose of digging footing or abutments, then you'd be performing bridge excavation, which is itself subdivided into wet, dry, and rock excavation depending on the material. Determining whether the excavation is wet or dry is as simple as declaring the base waterline, and anything above that will be dry, while anything below that will be wet. However, because moisture is a little more fluid than that in real life, you might find that each foundation has its own declared elevation.

Channel & Footwork
Finally, relocating or redirecting a creek or stream is channel excavation, while digging to make space for a column or wall foundation is footing excavation. You'd normally only need to redirect a steam of water if it's passing through an area that you immediately need for construction or is otherwise threatening the integrity of your property, while footing excavation is, predictably, much more common, taking place as part of most construction. While performing footing excavation, most professionals will generally aim to perform the line in as neat a line and grade as allowed, as it is possible to prevent the need for formwork by doing so as the concrete will set within the earth itself.

Don't Settle For Anything Less Than Perfect
No matter what type of excavation you need, you should never settle for anything less than perfect. Here at Abi Civil, our team of detailed earthworks contractors know exactly how to handle excavation work, and we're able to help finish any project. To speak with our team of civil contractors in NSW about what we can do for you, call us on 1300 402 510.