Surface Water Control

GIVE SURFACE WATER
A BETTER PATH

Sometimes the simplest drainage idea is the right one: shape the ground so water has a clear place to go. Drainage swales and graded ditches can move surface runoff across a property without allowing it to spread through a yard, follow a driveway or cut its own erosion channel. ELMS plans this work around the surrounding grade and where the water can safely continue after it leaves the problem area.

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A swale is part
of the grade.

A drainage swale is a shaped low area that encourages surface water to follow a deliberate route.

A drainage ditch serves a similar purpose where a more defined channel is appropriate.

Neither should be treated as an isolated trench.

The inlet, slope, path and outlet all affect whether the drainage actually works.

When swales or ditch
grading may help

Runoff Crossing a Yard

Surface water moving across a yard toward structures or low ground.

Water Moving Toward a Driveway

Runoff heading into or along residential access.

Surface Water Cutting an Erosion Channel

Water creating its own path through the property.

Runoff Needing a Defined Route

Water that needs to move around a pad or improvement.

An Existing Ditch That No Longer Works

A channel that has lost its shape or route.

Where does the water
go next?

Moving water away from one spot is only useful if the new route does not create a second problem.

ELMS looks beyond the wet area itself.

We consider where the water enters the drainage path, how the grade carries it and what happens when it reaches the end of the swale or ditch.

That whole path matters.

Swale, culvert or regrading?

Different drainage tools solve different problems.

A swale or ditch primarily carries surface water along the ground.

A culvert allows water to pass beneath a driveway or access route.

Regrading changes the land itself so water naturally travels in a better direction.

Some properties may use more than one of these approaches together.

Read: Swale vs. Culvert vs. Regrading →

Common questions

What is a drainage swale?

A swale is a shaped portion of the grade that creates a preferred route for surface runoff. It is designed to move water through or around an area instead of allowing it to spread or erode its own path.

Is a ditch the same as a swale?

They perform related functions, but a ditch is generally a more defined drainage channel while a swale can be broader and integrated more gradually into the surrounding grade.

Can a swale stop standing water?

It can help when the problem is caused by surface runoff that needs a better path. Standing water can have different causes, so the property should be evaluated before assuming a swale is the right fix.

When is a culvert needed instead?

A culvert is useful when water needs to cross beneath a driveway, road or other access route rather than travel beside it.

Water will find a path.

The goal is to make sure it is the path you planned.

Built to last,
backed in writing.

We stand behind qualifying work with a minimum 5 year warranty. When planning, preparation, and installation are done correctly, long-term performance should be expected.

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Let's get your project
done the right way.

Reach out — we'll review your project and walk you through the next step.