USDA SSURGO Soil Survey
Soil Risk Assessment for 75054 (Dallas, TX)
35 distinct soil map units cover ZIP 75054, area-weighted from USDA's official soil survey — not a citywide estimate.
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Dominant shrink-swell class
Water
19%
Of rated area is High/Very High shrink-swell
35
Distinct soil map units
What this means if you own property in 75054: "Shrink-swell" describes soil that expands when wet and shrinks when it dries out — the actual mechanism behind cracked slabs, sticking doors, and uneven floors, not just a label. Only 19% of this ZIP's rated area falls in the High or Very High shrink-swell range — this specific ZIP looks more stable than many others in the metro, though a site-specific inspection is still the only way to know your exact lot.
Likely repair approach for this soil profile
Mudjacking/slabjacking or minor releveling, if any repair is needed at all
This ZIP's soil profile leans low-to-moderate shrink-swell, so foundation movement here is less likely to be driven by chronic clay expansion. When settling does happen, it's more often addressed by pressure-grouting under the slab to relevel it — a faster, less invasive repair that works because the soil isn't actively cycling underneath it the way expansive clay does.
This is general engineering guidance based on this ZIP's real soil composition above, not a record of repairs actually performed here — the right method for any specific property still depends on a site inspection, foundation type, and the actual damage observed.
Current drought conditions — U.S. Drought Monitor
No significant drought is affecting Dallas County right now. That's relevant too — the shrink-swell movement described above is driven by wet/dry cycling, and without an active drought, this ZIP's soil composition (not current weather) is what's actually driving any foundation risk here.
Source: U.S. Drought Monitor (USDA/NOAA/University of Nebraska-Lincoln), week of June 30, 2026. County-level reading, not ZIP-specific — local conditions can vary within a county.
Soil Composition
35.8% of this ZIP
USDA soil unit: Water
13.0% of this ZIP
USDA soil unit: Branyon clay, 0 to 1 percent slopes
7.8% of this ZIP
USDA soil unit: Water
2.0% of this ZIP
USDA soil unit: Altoga silty clay loam, 5 to 12 percent slopes
1.4% of this ZIP
USDA soil unit: Branyon clay, 0 to 1 percent slopes
1.3% of this ZIP
USDA soil unit: Whitesboro loam, frequently flooded
1.0% of this ZIP
USDA soil unit: Lewisville silty clay, 1 to 3 percent slopes
0.8% of this ZIP
USDA soil unit: Navo clay loam, 1 to 3 percent slopes
0.8% of this ZIP
USDA soil unit: Houston Black clay, 1 to 3 percent slopes
0.7% of this ZIP
USDA soil unit: Pulexas fine sandy loam, frequently flooded
0.6% of this ZIP
USDA soil unit: Burleson clay, 0 to 1 percent slopes
0.5% of this ZIP
USDA soil unit: Sunev clay loam, 3 to 8 percent slopes
Source: USDA Natural Resources Conservation Service, SSURGO soil survey, area-weighted per ZIP via intersection with Census TIGER/Line ZCTA boundaries. Shrink-swell class is derived from each soil component's Linear Extensibility Percent (LEP), the standard USDA-NRCS expansive-soil indicator. This describes the ZIP overall — soil composition can still vary within a single property; a site-specific inspection is the only way to know conditions at a specific address.
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