IDENTIFIERS

  • Current Taxon Name (Soil Name): Webbridge
  • OSD
  • Series Extent
  • User Site ID: S1991ID069030
  • User Pedon ID: 91ID069030
  • Vegetation Plot ID: S1991ID069030
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P1095
  • NCSS Pedon Lab Data NASIS Record ID - 64131
  • Print Date: 11/12/2024

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 46.1791649
  • Std. Longitude: -116.8019409
  • Datum: WGS84
  • Township: 33N
  • Range: 4W
  • Section: 26
  • PLSS Details: 1300 feet S and 2570 feet E of NW corner
  • Location Description: Hand dug pit 3 feet back into side of skid trail Sweetwater Creek Canyon.
  • State: Idaho
  • County: ID069—Nez Perce
  • MLRA: 43—Northern Rocky Mountains
  • Non-MLRA Soil Survey Area: ID611—Lewis and Nez Perce Counties, Idaho

    • PEDON

  • Describers Name: T. Hahn
  • Current Taxonomic Class: Ashy over loamy-skeletal, mixed, superactive Alfic Vitricryands
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 30
  • Correlated Information:
  • Soil Name - Webbridge
  • PSC - 43 to 93 cm.
  • Classificaton Date - 1/27/2010
  • Sampled As Information:
  • Soil Name - Webbridge
  • Taxonomic Class - Loamy-skeletal, mixed Andeptic Cryoboralf
  • Taxon Kind - series
  • Classificaton Date - 7/29/1991
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 3
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: hillside, canyon
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: middle third
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: very high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: with 10 to <45
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/29/1991 (actual site observation date)
  • Microrelief Elevation: 0
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - intermixed conifers and hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ABGR

    ABLA

    ARNIC

    CACR19

    COPTI

    GAYLU

    LIBO

    PEDIC

    PIEN

    TRILL

    Abies grandis

    Abies lasiocarpa

    Arnica

    Calathea crotalifera

    Coptis

    Gaylussacia

    Lilium bolanderi

    Pedicularis

    Picea engelmannii

    Trillium

    grand fir

    subalpine fir

    arnica

    rattlesnake plant

    goldthread

    huckleberry

    Bolander's lily

    lousewort

    Engelmann spruce

    trillium

    —

    —

    —

    —

    —

    —

    —

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    —

    ochric epipedon

    argillic horizon

    lithic contact

    0—43

    0—8

    43—135

    135—0

    —-

    —-

    —-

    —-
    Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    28

    61

    30.5

    1378

    —

    0

    711

    —

    —

    —

    8.3

    —

    4.4

    8.3

    2.2

    —

    —

    —

    —

    —
    O—0 to 3 centimeters (0.0 to 1.2 inches); fragments. Slightly decomposed twigs, moss, and needles. Not sampled.
    A—3 to 11 centimeters (1.2 to 4.3 inches); dark yellowish brown (10YR 3/4) crushed, light yellowish brown (10YR 6/4) crushed, dry; silt loam; 12 percent clay; weak fine granular structure; soft, very friable, nonsticky, slightly plastic; moderate permeability; 21.0 very fine and fine roots throughout; 21.0 very fine and fine interstitial and tubular pores; 4 percent by volume subrounded 2-39-75 millimeter basalt fragments; slightly acid, pH 6.2, chlorophenol red; clear smooth boundary. Lab sample # 91P07172; moist when described;. High content very fine sand and fine sand - maybe loam texture. Darker colored due largely to wood ash and charcoal.
    Bw1—11 to 28 centimeters (4.3 to 11.0 inches); dark yellowish brown (10YR 4/4) crushed, light yellowish brown (10YR 6/4) crushed, dry; silt loam; 12 percent clay; weak coarse subangular blocky structure; soft, very friable, nonsticky, slightly plastic; moderate permeability; 21.0 very fine and fine roots throughout and 0.5 medium roots throughout; 21.0 very fine and fine tubular pores; 10 percent by volume subrounded 2-39-75 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; gradual smooth boundary. Lab sample # 91P07173; moist when described;. High content very fine sand and fine sand - maybe loam texture.
    Bw2—28 to 46 centimeters (11.0 to 18.1 inches); dark yellowish brown (10YR 4/4) crushed, light yellowish brown (10YR 6/4) crushed, dry; silt loam; 12 percent clay; weak coarse subangular blocky structure; soft, very friable, nonsticky, slightly plastic; moderately slow permeability; 21.0 very fine and fine roots throughout and 0.5 medium roots throughout; 21.0 very fine and fine tubular pores; 10 percent by volume subrounded 2-39-75 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; abrupt irregular boundary. Lab sample # 91P07174; moist when described;. High content very fine sand and fine sand - maybe loam texture.
    2Bt1—46 to 64 centimeters (18.1 to 25.2 inches); dark brown (7.5YR 3/4) exterior, yellowish brown (10YR 5/6) crushed and yellowish brown (10YR 5/4) exterior, dry; cobbly clay loam; 28 percent clay; moderate medium and coarse subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; moderately slow permeability; 3.0 very fine and fine roots throughout and 0.5 medium roots throughout; 3.0 very fine and fine tubular pores; 1 percent faint yellowish brown (10YR 5/4) clay films on faces of peds; 5 percent by volume subangular 250-425-600 millimeter basalt fragments and 10 percent by volume subangular 2-39-75 millimeter basalt fragments and 15 percent by volume subangular 75-162-250 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red; gradual wavy boundary. Lab sample # 91P07175; moist when described;. patchy - phpvsfiid 192555; patchy - phpvsfiid 192555
    2Bt2—64 to 89 centimeters (25.2 to 35.0 inches); dark brown (7.5YR 3/4) exterior, yellowish brown (10YR 5/6) crushed and yellowish brown (10YR 5/4) exterior, dry; very cobbly clay loam; 28 percent clay; moderate medium and coarse subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; moderately slow permeability; 3.0 very fine and fine roots throughout and 0.5 medium roots throughout; 21.0 very fine and fine tubular pores; 1 percent faint yellowish brown (10YR 5/4) clay films on faces of peds; 5 percent by volume subangular 250-425-600 millimeter basalt fragments and 15 percent by volume subangular 2-39-75 millimeter basalt fragments and 25 percent by volume subangular 75-162-250 millimeter basalt fragments; moderately acid, pH 5.6, chlorophenol red; clear wavy boundary. Lab sample # 91P07176; moist when described;. patchy - phpvsfiid 192556; patchy - phpvsfiid 192556
    2Bt3—89 to 117 centimeters (35.0 to 46.1 inches); dark brown (7.5YR 3/4) exterior, light yellowish brown (10YR 6/4) crushed and yellowish brown (10YR 5/4) exterior, dry; extremely cobbly loam; 26 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; moderately slow permeability; 3.0 fine roots throughout; 21.0 very fine and fine tubular pores; 1 percent faint yellowish brown (10YR 5/4) clay films on faces of peds; 5 percent by volume angular 250-425-600 millimeter basalt fragments and 30 percent by volume angular 2-39-75 millimeter basalt fragments and 40 percent by volume angular 75-162-250 millimeter basalt fragments; moderately acid, pH 5.6, chlorophenol red; clear smooth boundary. Lab sample # 91P07177; moist when described;. Higher sand content than above.; patchy - phpvsfiid 192557; patchy - phpvsfiid 192557
    2Bt4—117 to 138 centimeters (46.1 to 54.3 inches); dark yellowish brown (10YR 4/4) exterior, light yellowish brown (10YR 6/4) crushed and yellowish brown (10YR 5/4) exterior, dry; extremely cobbly loam; 26 percent clay; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; moderately slow permeability; 0.5 fine roots around fragments; 3.0 very fine and fine tubular pores; 5 percent by volume angular 250-425-600 millimeter basalt fragments and 30 percent by volume angular 2-39-75 millimeter basalt fragments and 55 percent by volume angular 75-162-250 millimeter basalt fragments; moderately acid, pH 5.8, chlorophenol red. Lab sample # 91P07178; moist when described;. Higher sand content than above.