Nashville Drainage image drainage ditch being dug by a excavator

What kind of drainage do I need? Do I need a french drain?

Posted by Dalton Quigley in 2010  • 

What kind of drainage solution do I need? Do I really need a french drain?

What kind of drain do I need?

You have a water problem lets see what type of solution
fixes this problem.

French Drain in a Nashville Tn backyard Franklin, Brentwood, Spring Hill, Nolensville, Murfreesboro Drains water problems crawl space water
The above image is a french drain being installed in a back yard using a sight level.

Are you getting water in a crawl space or basement? Is the
area ponding or large and irregular shaped. Many times
a client has no idea what will work with their drainage problem
so I come out and help them find a solution.

When should a french drain be used?
When should a drain box or series of boxes be used?
Do you connect in the downspouts?

French Drain popup drain French Drain in a Nashville Tn backyard Franklin, Brentwood, Spring Hill, Nolensville, Murfreesboro Drains water problems crawl space water
The above image is a drain ending in a pop up drain.

Lets say you have water entering the crawl space one idea would be
to check and find out is the water surface water that is getting up against
the home or is the water traveling subsurface? If the water is above ground
and traveling on the surface to the wall then you should add soil to slope
the area away from the home. If the volume that is traveling downhill will over
power any soil you put there then a drain or diverting the water somehow is necessary.
Berms and Swales are popular and easy options.

Berms and Swales

There are two common types of ways to divert water when it is traveling down hill.
Swales and Berms control water as a first line of defense. A swale is a ditch that
is sloped which gives water a place to fall into so it will travel to where you want it to.
Berms are mounded soil areas that are a barrier to waters travel so water will be able
to be guided using berms. Like in nature if water finds a hole it falls into it and if
water is traveling and it arrives at a berm it goes around it.
Try using berms and swales first since these have no parts other than moving some dirt around. You may need a drain box or french drain if berms and swales won't do.

French drain under sidewalk French Drain in a Nashville Tn backyard Franklin, Brentwood, Spring Hill, Nolensville, Murfreesboro Drains water problems crawl space water
The above image is a drain going under a sidewalk.

Drain Boxes

Drain Boxes and French Drains are needed where water sits for periods and saturates
an area which one you need depends on a couple of ideas. Does the water make a puddle and
have one central point where it can be gathered? If so a drain box could be a solution for
you and if the area is larger some choose multiple drain boxes. There is a little maintenance with a drain box because when debris gets stuck on the surface of the lid you will need to clean it off. French Drains don't need maintenance.

French Drains

A french drain is needed when the shape of the area is irregular and does not have a central point or the area cannot be modified with berms and swales for different reasons. One real benefit to having a french drain is you will catch water at multiple points when water is traveling doward it and you can catch water over a larger area and if the water is subsurface you can catch it there. You will always need a place to let the water out safely no matter what type of drainage system you use.

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Here is a video of a recent project in Spring Hill Tn.

 

We provide drainage consulatation to the Middle Tn area. Install what is needed

to make your drainage problem a thing of the past. Quigleys Landscaping 615-715-8216