How to Install a Heavy-Duty Trench Drain to Deal with Flooding

23 October 2019
 Categories: Construction & Contractors, Blog

Do you have ongoing drainage issues on your property? If so, your house may be set on some undulating land, and there may be a tendency for heavy rainwater to accumulate in one area, leading to issues when not addressed. As you often find that the water tends to head for your paved driveway before it has a chance to sink into the ground, you do need to come up with a drainage solution that is tailored towards the problem. In this case, you should probably think about installing a trench drain, but how should it be configured?

Understanding the Problem

As you know only too well, Australia is famous for those short, sharp storms, where a tremendous amount of water is dumped on top of a specific area in no time at all. This can happen on a daily basis in the middle of the rainy season, and as the ground will be generally saturated, the water will tend to flow across the top of the ground more readily.

Trench Drain

You can install a trench drain or gate of a suitable size to channel much of that stormwater to a more appropriate location where it can be connected to the sewer system. However, you will need to ensure that the drain is not just big enough for the job but is able to withstand other forces.

Correct Specification

As the drain will be sunk into the concrete or tarmac surface of your driveway, you need to make sure that it can cope with moving and sometimes static vehicle traffic above. To do this, you will have to use upgraded materials and get ready to lay a concrete foundation for the drain itself to avoid damage or cracking as it is pushed into the ground beneath.

You will also have to get a heavy-duty grate to cover the drain along its length and once again, this is to ensure that the weight of the vehicle above does not push the wheel and tyre through and damage the structure.


It is important to do this job properly and to use the right equipment and products for the best effect. Talk with contractors with experience in this area, and they will be able to provide you with an upgraded trench, the appropriate standard of the grate and all the other specifications. They will also be able to cut through the concrete or asphalt to lay the drain into the soil and ensure that it is correctly angled to divert the water properly. Speak to a professional about trench gates and drains.