From Backyard Swamp to Functional Landscape

From Backyard Swamp to Functional Landscape

The Problem

What was once a lawn had turned into a backyard swamp.

The property sat at a low point, collecting surface water not only from its own yard but also from neighboring properties on both sides. With nowhere for the water to go, the lawn remained saturated, muddy, and unusable for much of the year.

For the homeowners, this wasn’t just an inconvenience—it was a daily challenge. With five children and three dogs, having a functional, dry outdoor space was essential. Instead, they were dealing with constant mud, standing water, and limited use of their yard.

The Solution

After an initial inspection, Northwest Rain Solutions identified the root of the issue: unmanaged surface water and subsurface flow accumulating in the lowest part of the property.

To address this, a comprehensive stormwater infiltration and drainage system was designed to capture, move, and disperse water effectively across the site.

Key elements of the solution included:

• Infiltration trench + drain rock swale: Installed beneath a new pathway, this system directs water away from the saturated lawn while maintaining a usable walking surface.

• Hillside interception system: At the base of the stairs, an additional infiltration system captures both interflow and surface runoff from the slope before it can reach the lawn.

• Cobble swale: Designed to mimic a natural Pacific Northwest riverbed, this feature safely conveys overflow water into the adjacent wooded area for dispersion.

• Patio infiltration system: Beneath a flagstone extension of the existing patio, a third infiltration zone allows water to collect and infiltrate below ground—transforming a previously muddy area into a usable outdoor space.

Each component works together as part of a larger system, managing water from multiple sources while preserving the usability and aesthetics of the property.

The End Result

The transformation was dramatic.

Water that once pooled on the surface is now captured and infiltrated below ground or directed safely through the system. During heavy rains, excess water flows along the drain rock pathway and into the cobble swale, where it disperses naturally into the surrounding landscape.

The lawn has recovered, the mud is gone, and the backyard is fully usable again.

What was once a stormwater problem area is now a functional, integrated drainage system—and most importantly, a space where the family’s children and dogs can run freely without tracking mud back inside.