Lane County Area, Oregon
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Lane County Area, Oregon.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Peavine silty clay loam, 30 to 60 percent slopes | 116K | Well drained | C | Very limited | Very limited |
| Preacher-Bohannon-Slickrock complex, 50 to 75 percent slopes | 111K | Well drained | B | Very limited | Very limited |
| Bohannon gravelly loam, 50 to 90 percent slopes | 89K | Well drained | B | Very limited | Very limited |
| Peavine silty clay loam, 3 to 30 percent slopes | 67K | Well drained | C | Very limited | Very limited |
| Digger-Rock outcrop complex, 50 to 85 percent slopes | 67K | Well drained | B | Very limited | Very limited |
| Klickitat stony loam, 50 to 75 percent south slopes | 66K | Well drained | B | Very limited | Very limited |
| Bellpine silty clay loam, 12 to 20 percent slopes | 59K | Well drained | C | Very limited | Very limited |
| Bellpine silty clay loam, 20 to 30 percent slopes | 39K | Well drained | C | Very limited | Very limited |
| Klickitat stony loam, 50 to 75 percent north slopes | 38K | Well drained | B | Very limited | Very limited |
| Cumley silty clay loam, 2 to 20 percent slopes | 32K | Moderately well drained | C | Very limited | Very limited |
| Water | 31K | Not rated | Not rated | ||
| Honeygrove silty clay loam, 3 to 25 percent slopes | 29K | Well drained | C | Somewhat limited | Very limited |
| Preacher loam, 25 to 50 percent slopes | 27K | Well drained | B | Very limited | Very limited |
| Bohannon gravelly loam, 25 to 50 percent slopes | 26K | Well drained | B | Very limited | Very limited |
| Bellpine silty clay loam, 30 to 50 percent slopes | 26K | Well drained | C | Very limited | Very limited |
| Formader-Hembre-Klickitat complex, 50 to 80 percent slopes | 26K | Well drained | B | Very limited | Very limited |
| Klickitat stony loam, 30 to 50 percent south slopes | 24K | Well drained | B | Very limited | Very limited |
| Dupee silt loam, 3 to 20 percent slopes | 21K | Somewhat poorly drained | C | Very limited | Very limited |
| Ritner cobbly silty clay loam, 30 to 60 percent slopes | 20K | Well drained | C | Very limited | Very limited |
| Blachly-McCully clay loams, 3 to 30 percent slopes | 20K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 93% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas. A geotechnical assessment is recommended before building.
Septic Systems
About 96% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.