7-Foot Engineered Retaining Wall Tear-Out and Rebuild Underway

Here's what we were working with - an aging timber retaining wall that had clearly run its course. The wood is weathered, the timbers are shifting, and the wall is no longer doing its job of holding back the hillside. This is a really common situation with older timber walls. They have a limited lifespan, and once they start to go, they go fast.

This one is being fully removed and replaced. But here's the thing - a wall reaching 7 feet tall is not a dig-and-stack job. It requires engineering. A wall this size is holding back a serious amount of soil, and depending on the soil type and how water moves through it, the hydrostatic pressure building up behind that wall can be enormous. Get it wrong and the wall fails - sometimes suddenly.

That's exactly why we had this one engineered before a single shovel hit the ground. The engineer specifies the exact elevations, dimensions, compaction requirements, and drainage design. We follow those plans precisely. The excavation has to be right, the base has to be right, and the drainage system behind the wall has to be right. All of it works together to manage that pressure long-term.

You can see the excavation is well underway - cut back to the engineer's specified dimensions, base material being worked and leveled, a plate compactor on site, and the new wall block already staged and ready to go. This is the part of the job that nobody sees in the finished product, but it's the part that determines whether the wall is still standing in 30 years.

We do a lot of retaining wall work, and the front-end process is where we put in the most effort. The dirt work and excavation have to be done right before anything structural goes up. Cut corners here and it doesn't matter how good the wall looks on day one.