Slope Guide

RETAINING WALL OR
REGRADING THE SLOPE?

Both approaches can solve grade problems, but they solve them differently. Regrading changes the shape of the land. A retaining wall holds a more abrupt change in elevation. The better choice depends on how much space is available, what the property needs to support and how water moves through the area.

RETAINING WALLREGRADINGSLOPEDRAINAGEGRADE CHANGEWESTERN NCRETAINING WALLREGRADINGSLOPEDRAINAGEGRADE CHANGE

When regrading
makes more sense

Regrading can be a strong option when there is enough room to create a gentler transition.

Instead of holding the elevation change in one place, the ground is reshaped across a wider area.

This may work well when the primary problem is poor runoff, an awkward slope transition or ground that needs to be shaped into a more usable grade.

It also avoids adding a wall when the land itself can accomplish the goal.

When a retaining wall
makes more sense

A retaining wall becomes more useful when the elevation change needs to happen within a smaller footprint.

That can matter near a driveway, parking area, building zone, yard edge or other improvement where simply extending the slope would consume too much usable space.

The wall holds the grade transition while the surrounding drainage and ground are planned around it.

Sometimes the answer
is both.

A wall does not eliminate the need for good grading.

And grading does not eliminate every need for retention.

Many properties work best when the surrounding ground is reshaped to control water while a retaining wall handles the portion of the elevation change that needs to remain compact.

Four questions
to ask

1. How much space do you have?

If the slope can extend gradually without taking away needed useable area, regrading may be practical.

2. What is above and below the slope?

Driveways, pads, structures and access routes can affect how much freedom there is to reshape the land.

3. Where does the water go?

Neither solution works well if runoff is ignored.

4. What do you need the area to do?

A decorative yard transition and a grade supporting residential access are different problems.

Do not pick the solution
before reading the property.

A photograph can show the slope.

It usually cannot show the whole water path, the access limitations or how the surrounding grade connects.

The best first step is to define what is failing now and what you want the property to do after the work is complete.

Common questions

Is regrading cheaper than a retaining wall?

Cost depends on the amount of earthwork, access, slope, drainage and the retaining solution being considered. ELMS does not publish generic price ranges because the site conditions can change the scope substantially.

Can regrading stop erosion?

It can help when the existing grade is concentrating water or creating an unstable slope, but drainage and stabilization may also be necessary.

Does a retaining wall fix drainage?

No. Retaining and drainage are connected, but the wall itself does not replace proper water management.

Not sure which approach
your property needs?

Start with the problem, not the product. Call ELMS at (828) 351-8999.

Let's get your project
done the right way.

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