Hardly anyone up here has a flat lot. Driveways switch back up hillsides, yards drop away toward the river, and new homes go up on ground that used to be a slope. A well-built retaining wall is what turns that ground into something you can use, and what keeps the bank from sliding onto your drive every spring.
Boulder rockery or block wall?
A rockery is built from large natural boulders, each one set so it leans back into the hill and locks against the stones around it. It can be structural, holding a cut slope, or decorative, or both. Rockeries look like they belong in the mountains, and good rock isn’t hard to come by in this county.
A block wall is built from manufactured units that stack to a clean, even face. It suits tighter spaces, straight runs and places where you want a more finished look, like beside a patio or a garage.
We’ll talk through both on site. Sometimes the answer is a bit of each.
What’s behind the wall matters most
Water is what pushes walls over. Soil behind a wall that stays soaked gets heavy, and in a freeze-thaw winter that wet soil freezes, swells and pushes again. So we plan where the water goes before the first rock is set: drain rock behind the wall, a way for water to get out, and the ground above shaped so runoff doesn’t pour straight over the top.
That’s where the digging and grading behind the wall earns its keep. A solid, well-shaped base and a properly cut slope are most of the work you’ll never see.
They brought the vision we had for our property to life. Professional, courteous, on-time, AND on budget. These guys are the real deal.
Terracing, level pads and framed drives
Walls do more than hold back a hill. They can:
- Terrace a slope into steps you can plant, walk or sit on
- Level a pad for a yard, a patio or a future building
- Frame a driveway so the cut bank stays where it belongs
In 2024 we worked on a hillside lot in upper Kittitas County before the owners built their home. We cleared the property, leveled and graded it, then set rockery walls to frame a flat, usable yard on what had been a hillside. The soil conditions were ideal, and the rock quarry was two minutes down the road. See the rock wall and site prep project.
The Ronald wall: more than 500 feet, and it held
One of our largest rock walls sits above Lake Cle Elum in Ronald. The home is reached by a steep switchback gravel driveway, and the owners had flooding every year. From September to November 2025 we built a rockery more than 500 feet long and about 4 feet tall to hold the cut slope along that drive. We also graded the driveway and dug a deeper drainage ditch for the fall and winter rain.
Less than a month after we finished, record rainfall hit. Flash-flood waterfalls came down over the hillside, and the wall held. That’s the test that counts. The full story and drone photos are on the Ronald rockery wall page, and there’s more about working up the lake road on our Ronald landscaping page.
If water is the bigger problem on your slope, a wall often works hand in hand with a dry creek bed or drainage plan.
Have a slope that needs a wall? Book a free design consult or call 509-260-3659.
