When Solano County's expansive clay saturates during winter rains, it swells and pushes hard against anything in its path. Our concrete block walls are engineered specifically to withstand that lateral pressure, season after season.
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Photo: Jimmy Easterday / Retaining Wall Experts, CC BY-SA 4.0
Concrete block (also called segmental retaining wall, or SRW, construction) is the most common choice for structural retaining walls in Benicia — and for good reason on our terrain.
Walls over a few feet tall carry real lateral load from wet, expansive clay behind them. We reinforce the block cores and footing to handle that pressure, not just stack block and hope it holds.
A retaining wall almost never fails from soil alone — it fails from trapped water. Every wall gets gravel backfill and weep holes to relieve hydrostatic pressure before it ever pushes the wall out of alignment.
Split-face, smooth-face, and color-blended block are all available, so a structural wall doesn't have to look purely utilitarian — it can match the rest of your property.
Benicia requires a permit for structural retaining walls over 4 feet tall. We connect you with specialists experienced in navigating the Benicia Community Development Department's requirements before work starts.
A properly engineered and drained concrete block wall is a permanent fix, not a patch job you'll be redoing again in five years once the clay swells again.