Soil Survey of McHenry County, Illinois Part I - Soil Data Mart

McHenry County, Illinois—Part I 41
Slope range: 2 to 5 percent
A typical soil series description with range in
characteristics is included, in alphabetical order, in this
section. Additional information specific to this map
unit, such as horizon depth and textures, is available
in the “Soil Properties” section in Part II of this
publication.
Composition
Danabrook and similar soils: 90 percent
Dissimilar soils: 10 percent
Similar soils:
• soils that have slopes of less than 2 percent
• soils that have no subsurface layer
• soils that have a seasonal high water table at a
depth of less than 2 feet or more than 3.5 feet
• soils that contain more sand in the upper and
middle parts of the subsoil
Dissimilar soils:
• the poorly drained Drummer soils in drainageways
Management
For general and detailed information about
managing this map unit, see the following sections in
Part II of this publication:
• “Agronomy” section
• “Wildlife Habitat” section
• “Engineering” section
• “Soil Properties” section
Dickinson Series
Drainage class: Well drained
Permeability: Moderately rapid in the upper part and
rapid in the lower part
Landform: Outwash plains and stream terraces
Parent material: Loamy and sandy outwash
Slope range: 0 to 5 percent
Taxonomic classification: Coarse-loamy, mixed, mesic
Typic Hapludolls
Taxadjunct features: Dickinson sandy loam, 2 to 5
percent slopes, eroded, has a mollic epipedon that
is less than 10 inches thick. This soil is classified
as a coarse-loamy, mixed, mesic Umbric
Dystrochrept.
Typical Pedon for MLRA 95B
Typical pedon of Dickinson sandy loam, 0 to 2 percent
slopes, 1,048 feet south and 214 feet west of the
northeast corner of sec. 31, T. 44 N., R. 5 E.
Ap—0 to 8 inches; very dark brown (10YR 2/2)
sandy loam, grayish brown (10YR 5/2) dry; weak
fine and medium subangular blocky structure
parting to weak medium granular; friable; common
very fine roots; strongly acid; clear smooth
boundary.
A—8 to 14 inches; very dark brown (10YR 2/2) sandy
loam, grayish brown (10YR 5/2) dry; weak
medium subangular blocky structure parting to
moderate medium granular; friable; common very
fine roots; moderately acid; clear smooth
boundary.
AB—14 to 18 inches; very dark grayish brown (10YR
3/2) sandy loam, brown (10YR 5/3) dry; weak fine
subangular blocky structure parting to weak fine
granular; friable; common very fine roots;
moderately acid; clear smooth boundary.
Bw—18 to 26 inches; brown (10YR 4/3) sandy loam;
moderate fine and medium subangular blocky
structure; friable; common very fine roots; many
distinct dark brown (10YR 3/3) organic coatings
on faces of peds; 1 percent gravel; moderately
acid; clear smooth boundary.
BC—26 to 38 inches; dark yellowish brown (10YR 4/6)
loamy sand; weak medium subangular blocky
structure; very friable; common very fine roots;
slightly acid; gradual smooth boundary.
C—38 to 60 inches; 90 percent dark yellowish brown
(10YR 4/6) and 10 percent dark yellowish brown
(10YR 4/4), stratified sand and loamy sand; single
grain; loose; 1 percent gravel; slightly acid.
MLRA Series Range in Characteristics
Thickness of the mollic epipedon: 12 to 24 inches
Thickness of the solum: 24 to 50 inches
Ap or A horizon:
Hue—10YR
Value—2 or 3
Chroma—1 to 3
Texture—sandy loam or loam
Bw horizon:
Hue—10YR
Value—4 or 5
Chroma—3 or 4
Texture—sandy loam or fine sandy loam
C horizon:
Hue—10YR
Value—4 or 5
Chroma—3 to 6
Texture—loamy sand, sand, loamy fine sand, or
fine sand