Lane County Area, Oregon

Survey Area OR637• Oregon

The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). The most common soil order is Inceptisols — young soils with minimal horizon development but more than Entisols. 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. Search your address to find the exact soil composition, drainage, and series details at your specific location.

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

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

Ultisols

Strongly weathered clay soils of the Southeast. Acidic and naturally low in nutrients. Clay subsoil can slow drainage.

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

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.