Install a Trench Drain to Prevent Flooding

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  • 5-10 hours
  • Advanced
  • 30-500
What You'll Need
Measuring tape
Trench drain gutter
Tin snips
Water hose
Drain grate (easily available in hard ware stores)
Tool box

The best drainage solution to prevent flooding is to install a trench drain. After all, you would certainly not want high tidewater to seep into your house and destroy the interior. A trench drain was earlier associated with castles alone. It is a small moat or elevated strip of land that is used to surround your house. This elevated land helps to ward off floodwater from seeping in. The best part about installing a trench drain to prevent flooding is that it can be done by you. It is a difficult and time-consuming project that will cost $30 to $150 per linear foot.

Step 1 - Take Measurements

Use chalk and measuring tape to draw the size of the trench. Remember, if you are making a trench drain in front of the entrance, the trench should be at least 7 inches long.

Step 2 - Dig the Trench

Use a shovel to dig the trench 4 to 5 inch deep. Ensure that the depth is maintained throughout the length of the trench. Remove all the dirt and mud from the trench.

Step 3 - Make Way for Trench Drain Gutter

Make way for the trench drain gutter. Measure the gutter size and locate the place where you want to place it. Ideally, it should be placed at the ends of the trench drain. You can use tin snips to make space for the gutter. These gutters are readily available in any hardware store.

Step 4 - Level the Ground

Place the trench drain gutter at the desired place. Fill up the surrounding place with mud so that the gutter drain is level with the ground. Ensure that the gutter drain is slightly lower than the ground level.

Step 5 - Make Concrete Mix

Make a concrete mixture by mixing cement with water. Put all the cement in a wheelbarrow and pour water in it with a hose. Keep mixing the cement until you get the desired consistency.

Tip: Do not mix all the cement all at one time. Reserve some for later use.

Step 6 - Seal the Gutter

Use the concrete mixture to seal the gutter. Ideally, the concrete should be poured on all sides of the trench drain. Ensure that 1/8 of the surrounding area is enveloped with cement. Allow the cement to dry for 1 day before you move to the next step. If you see that the cement has cracked, then reapply another coat of cement to give a finished look.

Step 7 - Cover the Drain with Grate

Place a trench drain grate on top of the entire length of the trench. This grate will not only cover the drain, but also allow residents to walk across the trench.