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Drainage & Moisture

Soil Erosion & Foundation Failure

Erosion quietly removes the very soil your foundation rests on. On slopes and along drainage paths, it’s a real cause of settlement.

How erosion undermines

Fast-moving water carries away soil from beside or beneath the slab, leaving voids and weak bearing — and the foundation follows. Steep Canyon Lake and Lakeway lots are prone.

TopsoilExpansive clay — swells & shrinksLoad-bearing stratum
FIG · Expansive clay cross-sectionN.T.S.

Control measures

Soil retention, slope correction, and grading hold the ground; drainage slows the water that moves it.

MonitorLikelyAct now
Reading: Active washout — act
INFOGRAPHIC · Severity scaleIndicative

When support is already lost

Where erosion has caused settlement, steel piers restore support below the disturbed zone — start with a free survey.

Key takeaways
  • Erosion removes the soil that bears the slab.
  • Retention, slope, and drainage control it.
  • Steel piers restore lost support.
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Not sure how serious it is?

Get a free, ±⅛-inch elevation survey and a written, engineer-backed plan — no pressure.

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Frequently asked

Is erosion only a hillside problem?
It’s worst on slopes, but drainage channels and downspout outfalls erode flat lots too.
Can plants stop erosion?
Purpose-built foundation landscaping and retention help hold soil around the structure.
Keep reading

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