Roger Morph 
Trenches come in all shapes and sizes, depending on their intended purpose. Some trenches are shallow while others are deep; some are wide while others are narrow. The depth and width of a trench will vary depending on what it is used for.
A shallow trench may be dug around the perimeter of a property in order to install a fence
A shallow trench may be dug around the perimeter of a property in order to install a fence. This trench will usually be between six and twelve inches deep, and should be dug with a shovel or spade. The width of the trench will depend on the size of the fence posts being installed.
A deep trench may be required for utility lines such as water, sewer, or gas
A deep trench may be required for utility lines such as water, sewer, or gas. These trenches are typically three to six feet deep, and are dug with a backhoe. The width of the trench will again depend on the size of the pipes or lines being installed.
A narrow trench may be used to plant a row of trees or shrubs
A narrow trench may be used to plant a row of trees or shrubs. This trench should be dug with a spade, and should be as wide as the roots of the plants being installed. The depth of the trench will depend on the size of the plants.
A wide trench may be used for installing a walkway or driveway
A wide trench may be used for installing a walkway or driveway. This trench should be at least eighteen inches wide, and should be dug with a shovel or spade. The depth of the trench will depend on the type of surface being installed.
What are trenches and what is their purpose
Trenches are a type of excavation that is used for several purposes, the most common of which is as a defensive fortification in warfare. They are also used for mining, utility purposes such as the installation of water and sewer pipes, and occasionally as a location for dumping rubbish. Trenches can be dug by a variety of methods, the most common of which is using a shovel.
The purpose of a trench will dictate its shape, depth and size. For example, a military trench will typically be much deeper and narrower than one used for utility purposes. Trenches can be excavated in nearly any type of soil, but the soil type will affect how easy or difficult it is to dig the trench. For example, digging a trench in sandy soil will be much easier than in clay soil.
How to dig a trench
To dig a trench, you will need a shovel. First, find the end of the trench you want to dig and mark it with a stick or some other object. Then, start digging at the marked spot and continue digging until you reach the other end of the trench. Be sure to shovel out any rocks or roots that you come across. Finally, use a rake to level out the bottom of the trench.
Trenches must be properly inspected before they are filled in to ensure the safety of those who will be using the trench
Once the trenches have been dug, they must be properly inspected to ensure the safety of those who will be using them. This includes checking for any potential hazards, such as sharp objects or unstable ground. The trench should also be checked to make sure that it is wide enough and deep enough to safely accommodate the intended use. If any adjustments need to be made, they should be made before the trench is filled in.
