LOCATION BROADWAY VAEstablished Series
TAXONOMIC CLASS: Fine-silty, siliceous, active, mesic Fluventic Hapludolls
TYPICAL PEDON: Broadway silt loam--on a 1 percent convex slope in a pasture field. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 11 inches; dark brown (10YR 3/3) silt loam, dark yellowish brown (10YR 4/4) dry; weak fine granular structure; friable, slightly sticky, slightly plastic; common fine roots; few fine discontinuous pores; violent effervescence; moderately alkaline; gradual smooth boundary. (0 to 14 inches)
Bw1--11 to 28 inches; brown (10YR 4/3) silty clay loam; weak fine subangular blocky structure; friable, slightly sticky, slightly plastic; few fine roots; common fine discontinuous pores; few worm casts and channels; violent effervescence; moderately alkaline; gradual smooth boundary.
Bw2--28 to 46 inches; brown (10YR 4/3) silty clay loam; weak fine subangular blocky structure; friable, slightly sticky, slightly plastic; few fine roots; common fine discontinuous pores; few organic stains on faces of peds; violent effervescence; moderately alkaline; abrupt smooth boundary. (Combined thickness of the Bw horizon is 15 to 45 inches)
C--46 to 72 inches; grayish brown (10YR 5/2) loamy sand; many coarse distinct strong brown (7.5YR 5/6) and yellow (10YR 7/6) mottles; single grain; loose; few fine roots; 3 percent soft white calcium carbonates concretions; violent effervescence; moderately alkaline.
TYPE LOCATION: Shenandoah County, Virginia; 3 miles south of Mt. Jackson, 2,000 feet southeast of intersection of VA-730 and US-11, 60 feet southwest of Smith Creek.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 30 to 60 inches or more. Depth to hard bedrock is more than 60 inches. Secondary calcium carbonate concretions range from 0 to 10 percent and tend to increase with depth. Gravel and cobbles range from 0 to 5 percent in the solum and from 0 to 25 percent in the substratum. Many pedons contain shell fragments. Reaction is mildly alkaline or moderately alkaline throughout.
The Ap horizon has hue of 7.5YR or 10YR, value of 2 or 3, and chroma of 2 or 3. It is very fine sandy loam, loam, silt loam, or silty clay loam.
The A horizon, where present, has hue of 7.5YR or 10YR, value of 2 or 3, and chroma of 2 or 3. It is very fine sandy loam, loam, silt loam, or silty clay loam.
The Bw horizon has hue of 7.5YR or 10YR, value of 3 through 5, and chroma of 2 through 4. It is silt loam or silty clay loam.
The C horizon, where present, has hue of 5YR through 10YR, value of 3 through 5, and chroma of 2 through 4. It is loamy sand, sandy loam, fine sandy loam, silt loam, loam, silty clay loam, or clay loam in the fine- earth fraction.
COMPETING SERIES: These are the Gullion and Nomberville series. Gullion soils have gray mottles between 16 and 36 inches. Nomberville soils do not have free carbonates.
GEOGRAPHIC SETTING: Broadway soils are on flood plains. Slopes range from 0 to 5 percent. These soils formed in alluvium derived from limestones, calcareous shales, greenstones, and sandstones. Climate is temperate and humid. Mean annual air temperature ranges from 50 to 57 degrees F. Mean annual precipitation ranges from 30 to 45 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alonzville, Berks, Botetourt, Caverns, Coursey, Derroc, Frederick, Gladehill, Groseclose, Gullion, Ingledove, Irongate, Lehew, Moomaw, Newmarc, Nomberville, Shottower, Weikert, and Wolfgap soils. Alonzville, Botetourt, Caverns, Coursey, Ingledove, and Shottower soils have argillic horizons and are on stream terraces. Berks, Lehew, and Weikert soils are shallower to bedrock, contain more rock fragments in the subsoil, and are on uplands. Clubcaf, Gladehill, Gullion, Irongate, Newmarc, Nomberville, and Wolfgap soils do not contain free carbonates and are on similar landscapes. Derroc soils contain more rock fragments in the subsoil and are on similar landscapes. Frederick and Groseclose soils contain more clay in the subsoil and are on uplands. Moomaw soils have a fragipan and are on stream terraces.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is slow. Permeability is moderate. Subject to flooding.
USE AND VEGETATION: Most areas of these soils are cultivated. Corn, small grain, pasture, and hay are the principal crops.
DISTRIBUTION AND EXTENT: The Valley and Ridge physiographic province in Virginia, and possibly, West Virginia, Maryland, Kentucky, and Pennsylvania. The area is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Shenandoah County, Virginia, 1988.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - the zone from 0 to 11 inches (Ap horizon).
Cambic horizon - the zone from 11 to 46 inches (Bw horizon).
Fluventic features - irregular decrease in organic matter with increasing depth.
Udic moisture regime.
Soils within the range of the Broadway series were previously correlated as Buckton series.
SIR = VA0297
MLRA = 147
REVISED = 10/24/05 JWB
The 10/2005 revision updates this soil to the 9th Edition of the Keys to Soil Taxonomy (2003). CEC class is based on the classification of similar and geographically associated soils. Class placement may be revised in the future when laboratory data are reviewed or become available. Competing series, pedon description (including horizon nomenclature and/or descriptive terms), and other sections on the OSD were not revised.
ADDITIONAL DATA: Morphological, chemical, textural, and mineralogical data are reported in:
Edmonds, W.J., D.D. Rector, D.A. Gall, D.R. Hatch, R.S. Joslyn, and J.C. Baker. 1987. Properties and classification of soils derived from stratified alluvium in the Valley and Ridge Province of Virginia. VA. Agric. Exp. Stn. Bull. 85-10.