LOCATION BARKERS CROSSROADS      VA

Established Series
DNS,JDH/Rev. MDJ
05/2016

BARKERS CROSSROADS SERIES

MLRA(s): 136 (Southern Piedmont)
Depth Class: Very deep
Drainage Class (Agricultural): Well drained
Landscape: Piedmont Plateau
Parent Material: Earthy matherial weathered from granite or granite gneiss
Slope: 0 to 45 percent slopes
Mean Annual Air Temperature (type location): 12.4 degrees C. (54 degrees F.)
Mean Annual Precipitation (type location): 1062 mm (42 inches)

TAXONOMIC CLASS: Fine-loamy, mixed, semiactive, acid, mesic Typic Udorthents

TYPICAL PEDON: Barkers Crossroads loam (Colors are for moist soil unless otherwise indicated.)

Ap--0 to 8 cm (0 to 3 inch), brown (10YR 4/3) loam; weak fine granular structure; very friable, slightly sticky, slightly plastic; many fine and very fine roots; 2 percent angular quartzite gravels; very strongly acid; clear smooth boundary.

C1--8 to 102 cm (3 to 40 inches), yellowish brown (10YR 5/8) clay loam; few fine prominent red (2.5YR 5/6) and common medium distinct yellowish red (5YR5/6) mottles; massive; friable, slightly sticky, slightly plastic; common fine and very fine roots; 8 percent angular quartzite gravels; strongly acid; clear wavy boundary.

C2--102 to 152 cm (40 to 60 inches), yellowish brown (10YR 5/8) clay loam; massive; friable, slightly sticky, moderately plastic; few fine and medium mica flakes; 8 percent angular quartzite gravels; strongly acid.

TYPE LOCATION: Fairfax County, Virginia; located in South Run District Park on the man-made hill behind the goal posts of the first athletic field to the left of the park entrance fro the intersection with route 7100, 170 feet east of the northest corner of the second parking lot and 730 feet southwest of the park entrance on route 7100; Latitude 38 degrees, 45 minutes, 2.5 seconds north and Longitude 77 degrees, 16 minutes, 28.3 seconds west.

RANGE IN CHARACTERISTICS:

Depth to Bedrock: Greater than 183 cm (72 inches)
Depth to Seasonal High Water Table: Greater than 183 cm (72 inches), November to May
Rock Fragment content: 0 to 35 percent by volume thruought.
Soil Reaction: very strongly acid to moderately acid
Content of Mica: few to many

Range of Individual Horizons:

A or Ap horizon (if it occurs):
Color--hue of 5YR to 10YR, value of 3 to 5, and chroma of 2 to 4
Texture (fine-earth fraction)silt loam, loam, or sandy loam

C horizon:
Color--hue of 2.5YR to 2.5Y, value of 4 to 8, and chroma of 3 to 8
Texture (fine-earth fraction)clay, clay loam, silt loam, sandy clay loam,loam, sandy loam, loamy sand, or fine sandy loam

COMPETING SERIES:
Hattontown soils(tenative)--do not have as red hues in the substratum, and are found on diabase and basalt parent materials.
Wheaton soils--are found on parent materials derived from phyllites, and mica schists.

GEOGRAPHIC SETTING:
Landscape: Piedmont Plateau
Landform: Uplands
Hillslope Profile Position: Summit, shoulder, and backslopes
Geomorphic Component: Interfluves
Parent Material: earthy materials weathered from granite and granite gneiss
Slope: 0 to 45 percent
Frost-free period: 150 to 194 days
Mean Annual Air Temperature: 6.2 to 18.7 degrees C. (43 to 65 degrees F.)
Mean Annual Precipitation: 904 to 1202 mm (37 to 47 inches)

GEOGRAPHICALLY ASSOCIATED SOILS:

Elioak soils--have an argillic horizon
Sumerduck soils--have an Argillic horizon, and are somewhat poorly drained
Glenelg soils--have an argillic horizon
Meadowville soils--are moderately well drained

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class (Agricultural): Well drained
Internal Free Water Occurrence: Very deep (greater than 150 cm)
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: moderate to very high
Saturated Hydraulic Conductivity: Moderate to very slow
Permeability (obsolete): Moderate to slow
Shrink-swell Potential: Low

USE AND VEGETATION:
Major Uses: urban development
Dominant Vegetation: Where wooded--black oak, chestnut oak, red oak, white oak, hickory, yellow popular, red maple, shortleaf pine and Virginia pine.

DISTRIBUTION AND EXTENT:
Distribution: Virginia
Extent: Small

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia

SERIES PROPOSED: Fairfax County, Virginia, 2006.

REMARKS:

Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from 0 to 25 cm (0 to 10 inches) (Ap, and C1 horizons)

ADDITIONAL DATA: S04-VA059-8-2

OSD Data Map Unit ID: To be developed
Typical Pedon Data Mapunit ID: To be developed
OSD User Pedon ID: barkers crossroads S04-VA059-8-2
Changed status to Established - 5/2016 Update

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National Cooperative Soil Survey
U.S.A.