While we certainly have not seen much rain this year in the Kansas City area, the fact is that when it rains, it pours (no pun intended), and heavy downpours can wreak havoc on your lawn and landscaping. At SK Lawn and Landscape, we’ve helped hundreds of homeowners solve their drainage issues with custom solutions that are practical and effective and add an aesthetic touch to their lawns and landscaping. In this week’s post, we’ll examine what lawn erosion is, why it occurs, and how we can help correct it.
What Is Lawn Erosion and Why Does It Happen?
Lawn erosion occurs when the topsoil, which is the upper layer of soil containing organic matter and nutrients, is gradually worn away or washed off from the surface of the lawn. It is typically caused by the movement of water, wind, or foot traffic and can lead to the loss of fertile soil and the exposure of bare ground.
Here’s a breakdown of how lawn erosion works:
- Water runoff: When it rains or when you water your lawn, water can flow over the surface rather than being absorbed into the soil. If the water flow is concentrated and swift, it can dislodge soil particles and carry them away, causing erosion. This is more likely to occur on sloped lawns where the water gains momentum as it flows downhill.
- Wind erosion: In dry and loose soil areas, wind can pick up soil particles and carry them away. This is more common in arid regions or where the lawn lacks vegetation or protective barriers.
- Foot traffic: Frequent walking or running on the lawn, particularly on the same paths, can compress the soil, break down the grass, and result in bare patches. The exposed soil is then more vulnerable to erosion by water or wind.
- Lack of ground cover: A healthy lawn with dense vegetation helps anchor the soil in place and protects against erosion. If the grass cover is sparse or patchy, there’s less resistance to the forces of erosion.
- Poor drainage: Improper grading or inadequate drainage systems can lead to water pooling on the lawn. Standing water can saturate the soil, making it more susceptible to erosion.
The Solutions: Install French Drains and/or Retaining Walls
Retaining walls and French drains are popular solutions for addressing drainage issues on a lawn. Here’s how each solution works and the scenarios where they would be helpful:
- Retaining Walls: These are structures that hold or keep soil behind them. There are several types of retaining walls, including gravity walls, cantilevered walls, and sheet piling walls, each suitable for different circumstances. Retaining walls are most often used in cases where there’s a significant change in elevation across the yard or where the slope of the land naturally directs water toward the home or another undesired locationBuildingng a retaining wall can effectively redirect this water flow and prevent soil erosion. Here are a few things to remember:
- Depending on the size and complexity of the wall, you likely need engineering input to ensure its stability and effectiveness. SK Lawn and Landscape has experts in drainage solutions on staff that can analyze and develop an effective plan to halt unwanted erosion and correct drainage issues.
- The wall should include a suitable drainage system, such as weep holes or a French drain, to prevent water build-up behind the wall. As each lawn is unique, so too is the design plan we implement at SK Lawn and Landscape when correcting drainage issues.
- Local regulations might require a permit to build a retaining wall, which is why Scontinuouslyys checks local codes before proceeding.
- French Drains: A French drain is a trench filled with a perforated pipe and gravel that redirects surface water and groundwater away from an area they typically prevent ground and surface water from penetrating or damaging building foundations. As part of a landscaping project, they can also be used to direct water flow across a property in a more controlled fashion.
It’s important to remember that the success of either method depends on correctly identifying the source of your drainage issue and carefully planning how to redirect the water, which is the first step we at SK Lawn and Landscape take when determining the best action plan. If you’re tired of seeing your lawn and landscape slowly wash away every time it rains, call SK Lawn and Landscape to schedule a drainage solution consultation and estimate at (816) 372-4965 or complete the contact form below, and we’ll be in touch.
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