soil survey of bollinger county, missouri · general soil map the general soil map, which is a...
TRANSCRIPT
In cooperation with UnitedStates Department ofAgriculture, Forest Service;Missouri Department ofNatural Resources;Missouri Department ofConservation; MissouriAgricultural ExperimentStation; and BollingerCounty Soil and WaterConservation District
Soil Survey ofBollinger County,Missouri
United StatesDepartment ofAgriculture
NaturalResourcesConservationService
General Soil Map
The general soil map, which is a color map, shows the survey area divided into groups of associated soils calledgeneral soil map units. This map is useful in planning the use and management of large areas.
To find information about your area of interest, locate that area on the map, identify the name of the map unit in thearea on the color-coded map legend, then refer to the section General Soil Map Units for a general description ofthe soils in your area.
Detailed Soil Maps
The detailed soil maps can be useful in planning the use andmanagement of small areas.
To find information about your areaof interest, locate that area on theIndex to Map Sheets. Note thenumber of the map sheet and turnto that sheet.
Locate your area of interest onthe map sheet. Note the map unitsymbols that are in that area. Turnto the Contents, which lists themap units by symbol and nameand shows the page where eachmap unit is described.
The Contents shows which tablehas data on a specific land use foreach detailed soil map unit. Alsosee the Contents for sections ofthis publication that may addressyour specific needs.
3
How To Use This Soil Survey
4
Additional information about the Nations natural resources is available on theNatural Resources Conservation Service home page on the World Wide Web. Theaddress is http://www.nrcs.usda.gov.
This soil survey is a publication of the National Cooperative Soil Survey, a joint effortof the United States Department of Agriculture and other Federal agencies, Stateagencies including the Agricultural Experiment Stations, and local agencies. TheNatural Resources Conservation Service (formerly the Soil Conservation Service) hasleadership for the Federal part of the National Cooperative Soil Survey.
Major fieldwork for this soil survey was completed in 2001. Soil names anddescriptions were approved in 2002. Unless otherwise indicated, statements in thispublication refer to conditions in the survey area in 2002. This survey was madecooperatively by the Natural Resources Conservation Service and the United StatesDepartment of Agriculture, Forest Service; Missouri Department of Natural Resources;Missouri Department of Conservation; Missouri Agricultural Experiment Station; andBollinger County Soil and Water Conservation District. The survey is part of thetechnical assistance furnished to the Bollinger County Soil and Water ConservationDistrict.
Soil maps in this survey may be copied without permission. Enlargement of thesemaps, however, could cause misunderstanding of the detail of mapping. If enlarged,maps do not show the small areas of contrasting soils that could have been shown at alarger scale.
The United States Department of Agriculture (USDA) prohibits discrimination in all ofits programs on the basis of race, color, national origin, gender, religion, age, disability,political beliefs, sexual orientation, and marital or family status. (Not all prohibitedbases apply to all programs.) Persons with disabilities who require alternative means forcommunication of program information (Braille, large print, audiotape, etc.) shouldcontact the USDAs TARGET Center at 202-720-2600 (voice or TDD).
To file a complaint of discrimination, write USDA, Director, Office of Civil Rights,Room 326W, Whitten Building, 14th and Independence Avenue SW, Washington, DC20250-9410, or call 202-720-5964 (voice or TDD). USDA is an equal opportunity providerand employer.
Cover: A typical landscape of the Wrengart-Alred-Hildebrect association.
http://www.nrcs.usda.gov
5
Contents
How To Use This Soil Survey ................................ 3Foreword ................................................................. 9General Nature of the County .................................. 11
Climate ............................................................... 11Physiography, Relief, and Drainage .................... 12History and Development .................................... 12Agriculture .......................................................... 12
How This Survey Was Made ................................... 12General Soil Map Units ........................................ 15
1. Wrengart-Alred-Hildebrecht Association ....... 152. Clarksville-Captina-Scholten Association ..... 153. Calhoun-Falaya-Forestdale Association ....... 174. Tilk-Secesh-Cornwall Association ................ 185. Haymond-Wakeland-Moniteau
Association .................................................. 196. Wrengart-Minnith Association ...................... 207. Memphis-Alred-Wrengart Association .......... 21
Detailed Soil Map Units ....................................... 2360033Wrengart silt loam, 5 to 9 percent
slopes, eroded ............................................. 2460046Minnith silt loam, 15 to 30 percent
slopes .......................................................... 2460053Winfield silt loam, 3 to 8 percent
slopes, eroded ............................................. 2460054Minnith silt loam, 8 to 15 percent
slopes .......................................................... 2560055Winfield silt loam, 2 to 5 percent
slopes .......................................................... 2566000Moniteau silt loam, 0 to 3 percent
slopes, occasionally flooded ........................ 2566054Wakeland silt loam, 0 to 2 percent
slopes, frequently flooded............................. 2566055Haymond silt loam, 0 to 3 percent
slopes, occasionally flooded ........................ 2673055Alred-Rueter complex,
15 to 35 percent slopes, very stony.............. 2673100Wrengart silt loam, 2 to 5 percent
slopes .......................................................... 2773101Wrengart silt loam, 5 to 9 percent
slopes .......................................................... 2773139Poynor-Clarksville-Scholten
complex, 8 to 15 percent slopes, stony ....... 2773140Clarksville-Scholten complex,
15 to 45 percent slopes, very stony.............. 28
73141Firebaugh silt, 3 to 8 percent slopes ..... 2873145Crider silt loam, 3 to 8 percent
slopes, eroded ............................................. 2973146Marquand silt loam, 3 to 8 percent
slopes .......................................................... 2973150Caneyville-Bucklick complex,
8 to 15 percent slopes, rocky ....................... 2973151Caneyville-Gasconade-Bucklick
complex, 15 to 25 percent slopes, rocky ..... 3073156Alred-Gepp complex, 8 to 15
percent slopes, stony ................................... 3073157Captina silt loam, 3 to 8 percent
slopes .......................................................... 3173223Coulstone-Bender complex,
15 to 50 percent slopes, very stony.............. 3173264Alred-Wrengart complex, 14 to 35
percent slopes, very stony, rocky ................. 3273265Captina-Scholten complex, 3 to 8
percent slopes ............................................. 3273266Hildebrecht silt loam, 8 to 15
percent slopes, eroded ................................. 3373267Yelton-Scholten complex, 8 to 15
percent slopes ............................................. 3473269Brussels-Gasconade-Rock outcrop
complex, 30 to 90 percent slopes, verybouldery ....................................................... 34
73270Wrengart silt loam, 9 to 14 percentslopes, eroded ............................................. 35
73343Captina silt loam, 3 to 8 percentslopes, eroded ............................................. 35
73344Captina silt loam, 8 to 15 percentslopes, eroded ............................................. 35
73345Hildebrecht silt loam, 5 to 9 percentslopes .......................................................... 36
73346Hildebrecht silt loam, 5 to 9 percentslopes, eroded ............................................. 37
74644Deible silt loam, 1 to 3 percentslopes .......................................................... 37
74646Cornwall silt loam, 3 to 8 percentslopes .......................................................... 37
74648Aslinger silt loam, 3 to 8 percentslopes .......................................................... 37
74649Aslinger-Waben complex, 3 to 15percent slopes ............................................. 38
6
74679Higdon silt loam, 0 to 3 percentslopes, rarely flooded ................................... 38
74680Moniteau silt loam, 0 to 3 percentslopes, rarely flooded ................................... 39
74685Auxvasse silt loam, 2 to 5 percentslopes .......................................................... 39
75379Kaintuck loam, 0 to 3 percentslopes, frequently flooded............................. 39
75381Bearthicket silt loam, 0 to 3 percentslopes, rarely flooded ................................... 39
75395Jamesfin silt loam, 0 to 3 percentslopes, occasionally flooded ........................ 40
75408Secesh silt loam, 0 to 3 percentslopes, rarely flooded ................................... 40
75409Relfe sandy loam, 0 to 3 percentslopes, occasionally flooded ........................ 40
75411Tilk very gravelly sandy loam, 0 to 3percent slopes, rarely flooded ...................... 41
75416Gladden loam, 0 to 3 percentslopes, occasionally flooded ........................ 42
75417Relfe-Sandbur complex,0 to 3 percent slopes, frequentlyflooded ......................................................... 42
75426Gabriel silt loam, 0 to 3 percentslopes, rarely flooded ................................... 42
75428Tilk, occasionally flooded-Cornwall-Poynor complex, 3 to 15 percent slopes ...... 43
75429Tilk-Secesh complex,0 to 3 percent slopes, occasionallyflooded ......................................................... 43
75430Wideman fine sandy loam, 0 to 3percent slopes, occasionally flooded ............ 44
75451Gladden silt loam, 0 to 3 percentslopes, occasionally flooded ........................ 44
75467Wilbur silt loam, 0 to 3 percentslopes, frequently flooded............................. 44
75468Elsah silt loam, 0 to 3 percentslopes, occasionally flooded ........................ 45
77000Killarney-Frenchmill complex,15 to 45 percent slopes, rubbly .................... 45
77002Delassus silt loam, 3 to 8 percentslopes .......................................................... 45
77005Hassler-Syenite complex, 8 to 25percent slopes, bouldery .............................. 46
77008Hassler silt loam, 3 to 15 percentslopes, stony ............................................... 46
80000Calhoun silt loam, 0 to 1 percentslopes .......................................................... 47
80001Oaklimeter silt loam, 0 to 1 percentslopes .......................................................... 47
82000Dubbs silt loam, 0 to 1 percentslopes .......................................................... 47
82001Amagon silt loam, 0 to 1 percentslopes, frequently ponded ............................ 47
82002Forestdale silty clay loam, 0 to 1percent slopes, frequently ponded ................ 48
82005Malden loamy fine sand, 0 to 3percent slopes ............................................. 48
82006Bosket fine sandy loam, 1 to 5percent slopes ............................................. 48
82007Bosket loam, 0 to 3 percent slopes,occasionally flooded ..................................... 49
82009Forestdale silty clay loam, 0 to 1percent slopes ............................................. 49
82010Amagon silt loam, 0 to 1 percentslopes .......................................................... 49
82011Crowley silt loam, 0 to 1 percentslopes .......................................................... 49
86000Dubbs silt loam, 0 to 3 percentslopes, occasionally flooded ........................ 50
86001Calhoun silt loam, 0 to 1 percentslopes, occasionally flooded ........................ 51
86002Falaya silt loam, 0 to 1 percentslopes, occasionally flooded ........................ 51
86003Amagon silt loam, 0 to 1 percentslopes, occasionally flooded ........................ 51
86004Forestdale silty clay loam, 0 to 1percent slopes, occasionally flooded ............ 52
90000Memphis silt loam, 3 to 8 percentslopes, eroded ............................................. 52
90001Memphis silt loam, 8 to 15 percentslopes, severely eroded ................................ 52
99001Water .................................................... 5399003Miscellaneous water .............................. 5399007Dam ...................................................... 5399015Udorthents-Water complex .................... 53
Use and Management of the Soils ...................... 55Interpretive Ratings ............................................. 55
7
Rating Class Terms ........................................ 55Numerical Ratings .......................................... 55
Crops and Pasture .............................................. 56Prime Farmland .............................................. 58Yields per Acre ............................................... 60Land Capability Classification ........................ 60Pasture and Hayland Suitability Groups ......... 61
Forest Productivity and Management .................. 62Forest Productivity ......................................... 64Forest Management ....................................... 64
Windbreaks and Environmental Plantings ........... 66Recreation .......................................................... 66Wildlife Habitat ................................................... 68Engineering ........................................................ 71
Building Site Development .............................. 72Sanitary Facilities .......................................... 73Construction Materials and Excavating ........... 75Water Management ........................................ 76Waste Management ....................................... 77
Soil Properties ...................................................... 81Engineering Index Properties .............................. 81Physical Properties ............................................ 82Chemical Properties ........................................... 83Water Features .................................................. 84Soil Features ...................................................... 85
Classification of the Soils .................................... 87Soil Series and Their Morphology ....................... 87
Alred Series ................................................... 87Amagon Series .............................................. 88Aslinger Series ............................................... 90Auxvasse Series ............................................ 91Bearthicket Series .......................................... 92Bender Series ................................................ 93Bosket Series ................................................ 94Brussels Series .............................................. 95Bucklick Series .............................................. 96Calhoun Series ............................................... 97Caneyville Series ............................................ 98Captina Series ................................................ 99Clarksville Series .......................................... 100Cornwall Series ............................................ 101Coulstone Series .......................................... 102Crider Series ................................................ 103Crowley Series ............................................. 104
Deible Series ................................................ 105Delassus Series ........................................... 106Dubbs Series ............................................... 108Elsah Series ................................................ 109Falaya Series ............................................... 109Firebaugh Series .......................................... 110Forestdale Series .......................................... 111Frenchmill Series ......................................... 112Gabriel Series .............................................. 113Gasconade Series ........................................ 114Gepp Series ................................................. 115Gladden Series ............................................ 116Hassler Series .............................................. 117Haymond Series ........................................... 118Higdon Series ............................................... 119Hildebrecht Series ........................................ 120Jamesfin Series ............................................ 121Kaintuck Series ............................................ 122Killarney Series ............................................ 123Malden Series .............................................. 124Marquand Series .......................................... 125Memphis Series ........................................... 126Minnith Series .............................................. 127Moniteau Series ........................................... 128Oaklimeter Series ........................................ 129Poynor Series .............................................. 130Relfe Series.................................................. 131Rueter Series ............................................... 132Sandbur Series ............................................ 133Scholten Series ............................................ 134Secesh Series .............................................. 135Syenite Series .............................................. 136Tilk Series .................................................... 137Waben Series .............................................. 138Wakeland Series .......................................... 139Wideman Series ........................................... 140Wilbur Series ............................................... 141Winfield Series ............................................. 141Wrengart Series ........................................... 142Yelton Series ................................................ 143
Formation of the Soils ....................................... 145Factors of Soil Formation ................................. 145
Parent Material ............................................. 145Living Organisms .......................................... 146
8
Climate ......................................................... 146Topography ................................................... 146Time ............................................................. 146
References .......................................................... 149Glossary ............................................................... 151Tables .................................................................. 165
Table 1.Temperature and Precipitation ........... 166Table 2.Freeze Dates in Spring ind Fall ......... 167Table 3.Growing Season................................ 167Table 4.Acreage and Proportionate Extent
of the Soils ................................................. 168Table 5.Land Capability and Yields per
Acre of Crops ............................................. 170Table 6.Pasture and Hayland Groups and
Yields per Acre of Hay and Pasture............ 175Table 7.Forest Productivity ............................ 180Table 8a.Forest Management ........................ 190Table 8b.Forest Management ........................ 208
Issued 2006
Table 9.Windbreaks and EnvironmentalPlantings .................................................... 226
Table 10.Recreational Site Development ....... 236Table 11a.Wildlife Habitat .............................. 249Table 11b.Wildlife Habitat .............................. 268Table 12.Building Site Development .............. 284Table 13.Sanitary Facilities ........................... 302Table 14.Construction Materials and
Excavating ................................................. 322Table 15.Water Management ........................ 342Table 16.Waste Management ........................ 360Table 17.Engineering Index Properties .......... 380Table 18.Physical Properties of the Soils ...... 395Table 19.Chemical Properties of the
Soils ........................................................... 405Table 20.Water Features ............................... 416Table 21.Soil Features ................................... 431Table 22.Classification of the Soils ................ 436
9
Foreword
This soil survey contains information that affects land use planning in this surveyarea. It contains predictions of soil behavior for selected land uses. The survey alsohighlights soil limitations, improvements needed to overcome the limitations, and theimpact of selected land uses on the environment.
This soil survey is designed for many different users. Farmers, ranchers, foresters,and agronomists can use it to evaluate the potential of the soil and the managementneeded for maximum food and fiber production. Planners, community officials,engineers, developers, builders, and home buyers can use the survey to plan land use,select sites for construction, and identify special practices needed to ensure properperformance. Conservationists, teachers, students, and specialists in recreation, wildlifemanagement, waste disposal, and pollution control can use the survey to help themunderstand, protect, and enhance the environment.
Various land use regulations of Federal, State, and local governments may imposespecial restrictions on land use or land treatment. The information in this report isintended to identify soil properties that are used in making various land use or landtreatment decisions. Statements made in this report are intended to help the land usersidentify and reduce the effects of soil limitations on various land uses. The landowner oruser is responsible for identifying and complying with existing laws and regulations.
Great differences in soil properties can occur within short distances. Some soils areseasonally wet or subject to flooding. Some are shallow to bedrock. Some are toounstable to be used as a foundation for buildings or roads. Clayey or wet soils arepoorly suited to use as septic tank absorption fields. A high water table makes a soilpoorly suited to basements or underground installations.
These and many other soil properties that affect land use are described in this soilsurvey. Broad areas of soils are shown on the general soil map. The location of eachsoil is shown on the detailed soil maps. Each soil in the survey area is described.Information on specific uses is given for each soil. Help in using this publication andadditional information are available at the local office of the Natural ResourcesConservation Service or the Cooperative Extension Service.
Roger A. HansenState ConservationistNatural Resources Conservation Service
11
Soil Survey of
Bollinger County, Missouri
degrees. In summer, the average daily temperature is75.4 degrees, and the average daily maximumtemperature is 88 degrees. The highest temperature,which occurred at Marble Hill on July 18, 1954, was108 degrees.
Growing degree days are shown in table 1. They areequivalent to heat units. During the month, growingdegree days accumulate by the amount that the
By Donald Holbrook and J. Daniel Childress, Natural Resources Conservation Service
Fieldwork by Donald Holbrook, Kenneth Benham, Curtis Marshall, E. Rex Butler, BurtonL. Brown, Kenneth L. Gregg, and Dave Skaer, Natural Resources Conservation Service,and Rod Taylor, Kevin Godsey, Michael L. Chalfant, Gorman Bennett, and PatrickEvans, Missouri Department of Natural Resources
United States Department of Agriculture, Natural Resources Conservation Service,in cooperation withthe United States Department of Agriculture, Forest Service; the Missouri Department ofNatural Resources; the Missouri Department of Conservation; the Missouri AgriculturalExperiment Station; and the Bollinger County Soil and Water Conservation District
BOLLINGER COUNTY is located in the southeasternpart of Missouri, about 90 miles south of St. Louis and25 miles west of the Mississippi River (fig. 1). It isbordered on the east by Cape Girardeau County, onthe south by Stoddard County, on the west by Wayneand Madison Counties, and on the north by PerryCounty. The total area of the county is 397,235 acres,or about 620 square miles. Marble Hill is the countyseat. The population of the county was 12,029 in 2000.
General Nature of the CountyThis section gives general information concerning
the county. It describes climate; physiography, relief,and drainage; history and development; andagriculture.
Climate
Table 1 gives data on temperature and precipitationfor the survey area as recorded at Marble Hill in theperiod 1961 to 1990. Table 2 shows probable dates ofthe first freeze in fall and the last freeze in spring.Table 3 provides data on the length of the growingseason.
In winter, the average temperature is 34.3 degrees Fand the average daily minimum temperature is 23.3degrees. The lowest temperature on record, whichoccurred at Marble Hill on February 2, 1951, was 27
Figure 1.Location of Bollinger County in Missouri.
12 Soil Survey
average temperature each day exceeds a basetemperature (50 degrees F). The normal monthlyaccumulation is used to schedule single or successiveplantings of a crop between the last freeze in springand the first freeze in fall.
The average annual total precipitation is about 46.80inches. Of this total, about 24.29 inches, or 52percent, usually falls in April through September. Thegrowing season for most crops falls within this period.The heaviest 1-day rainfall during the period of recordwas 6.30 inches at Marble Hill on March 28, 1977.Thunderstorms occur on about 60 days each year, andmost occur between May and August.
The average seasonal snowfall is 13.4 inches. Thegreatest snow depth at any one time during the periodof record was 14 inches recorded on February 26,1979. On an average, 6 days per year have at least 1inch of snow on the ground. The heaviest 1-daysnowfall on record was 12 inches recorded onFebruary 16, 1993.
The average relative humidity in midafternoon isabout 58 percent. Humidity is higher at night, and theaverage at dawn is about 86 percent. The sun shines68 percent of the time possible in summer and 47percent in winter. The prevailing wind is from thesouthwest. Average windspeed is highest, around 9miles per hour, from November to April.
Physiography, Relief, and Drainage
Bollinger County has two distinct physiographicregions within its borders. The Salem Plateau, whichcovers most of the county, is an extensive land regionmade of Ordovician age rocks that surrounds the St.Francois Mountains. In Bollinger County, these rocksare mostly cherty dolostone with some thininterbedded sandstone. A thin loess deposit covers thebroader ridgetops. The plateau is highly dissected bynumerous streams forming interconnecting ridges andsteep hillslopes.
The Mississippi River alluvial delta area is in thesouthern part of Bollinger County. This area is primarilylowlands produced by the Mississippi River during aprevious era. It is level and made up of terraces andintra-terrace flatlands.
The major river valleys drain to the southeast. TheWhitewater River and the Little Whitewater River are inthe northern part of the county. Crooked Creek, alongwhich the town of Marble Hill is located, is in themiddle part, and the Castor River is in thesouthwestern part of the county.
History and Development
Bollinger County was formed in 1851 from portionsof Cape Girardeau, Madison, Stoddard, and WayneCounties. It was named for George Frederick Bollinger,who came to this area in 1797 from North Carolina. Hereceived a 640-acre land grant from Don LouisLorimier, the Spanish commandant at Cape Girardeau.In return for the land, Bollinger agreed to develop theland and bring more settlers from the east. He returnedto North Carolina and, in 1800, brought 20 families(including six of his brothers and their families) back tosettle along the banks of the Whitewater River.
Bollinger also became involved in the political arena.Bollinger was a member of the first territorialassembly, which met in 1812 in St. Louis. WhenMissouri became a state, Bollinger became a senator.He was one of the original senators to meet at theFirst Missouri State Capitol in St. Charles and he waselected to serve as president pro tem of the Senate in1828. Bollinger also had a hand in national politicswhen he was a member of the electoral college thatelected President Andrew Jackson to his second term(1832 to 1837).
Agriculture
Clearing of the forests began in the early 1800s withthe first European settlements in the river valleys andon the broader ridges. Several decades ago, significantacreages of corn and wheat were grown in the county.At the present time, very few acres in the county aredevoted to annual crops. The cleared land is used toproduce grass or grass and legume mixtures forpasture and hay. Nearly all of the pasture and hay isconsumed by beef cattle. Many of the farmers in thecounty supplement their incomes with off-farmemployment. Nearly 70 percent of the county is usedfor timber production. The harvesting of saw logs,primarily oak, is an important segment of the localeconomy. Most of the logs are processed locally intoties and pallet lumber.
How This Survey Was MadeThis survey was made to provide information about
the soils and miscellaneous areas in the survey area.The information includes a description of the soils andmiscellaneous areas and their location and adiscussion of their suitability, limitations, andmanagement for specified uses. Soil scientists
Bollinger County, Missouri 13
observed the steepness, length, and shape of theslopes; the general pattern of drainage; the kinds ofcrops and native plants; and the kinds of bedrock.They dug many holes to study the soil profile, which isthe sequence of natural layers, or horizons, in a soil.The profile extends from the surface down into theunconsolidated material in which the soil formed. Theunconsolidated material is devoid of roots and otherliving organisms and has not been changed by otherbiological activity.
The soils and miscellaneous areas in the surveyarea are in an orderly pattern that is related to thegeology, landforms, relief, climate, and naturalvegetation of the area. Each kind of soil andmiscellaneous area is associated with a particular kindof landform or with a segment of the landform. Byobserving the soils and miscellaneous areas in thesurvey area and relating their position to specificsegments of the landform, a soil scientist develops aconcept or model of how they were formed. Thus,during mapping, this model enables the soil scientistto predict with a considerable degree of accuracy thekind of soil or miscellaneous area at a specific locationon the landscape.
Commonly, individual soils on the landscape mergeinto one another as their characteristics graduallychange. To construct an accurate soil map, however,soil scientists must determine the boundaries betweenthe soils. They can observe only a limited number ofsoil profiles. Nevertheless, these observations,supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient toverify predictions of the kinds of soil in an area and todetermine the boundaries.
Soil scientists recorded the characteristics of thesoil profiles that they studied. They noted soil color,texture, size and shape of soil aggregates, kind andamount of rock fragments, distribution of plant roots,reaction, and other features that enable them toidentify soils. After describing the soils in the surveyarea and determining their properties, the soilscientists assigned the soils to taxonomic classes(units). Taxonomic classes are concepts. Eachtaxonomic class has a set of soil characteristics withprecisely defined limits. The classes are used as abasis for comparison to classify soils systematically.Soil taxonomy, the system of taxonomic classificationused in the United States, is based mainly on the kind
and character of soil properties and the arrangement ofhorizons within the profile. After the soil scientistsclassified and named the soils in the survey area, theycompared the individual soils with similar soils in thesame taxonomic class in other areas so that theycould confirm data and assemble additional databased on experience and research.
While a soil survey is in progress, samples of someof the soils in the area generally are collected forlaboratory analyses and for engineering tests. Soilscientists interpret the data from these analyses andtests as well as the field-observed characteristics andthe soil properties to determine the expected behaviorof the soils under different uses. Interpretations for allof the soils are field tested through observation of thesoils in different uses and under different levels ofmanagement. Some interpretations are modified to fitlocal conditions, and some new interpretations aredeveloped to meet local needs. Data are assembledfrom other sources, such as research information,production records, and field experience of specialists.For example, data on crop yields under defined levelsof management are assembled from farm records andfrom field or plot experiments on the same kinds ofsoil.
Predictions about soil behavior are based not onlyon soil properties but also on such variables asclimate and biological activity. Soil conditions arepredictable over long periods of time, but they are notpredictable from year to year. For example, soilscientists can predict with a fairly high degree ofaccuracy that a given soil will have a high water tablewithin certain depths in most years, but they cannotpredict that a high water table will always be at aspecific level in the soil on a specific date.
After soil scientists located and identified thesignificant natural bodies of soil in the survey area,they drew the boundaries of these bodies on aerialphotographs and identified each as a specific mapunit. Aerial photographs show trees, buildings, fields,roads, and rivers, all of which help in locatingboundaries accurately.
The descriptions, names, and delineations of thesoils in this survey area do not fully agree with those ofthe soils in adjacent survey areas. Differences are theresult of a better knowledge of soils, modifications inseries concepts, or variations in the intensity ofmapping or in the extent of the soils in the survey areas.
15
General Soil Map Units
Parent Material
Wrengartfine-silty loess over gravelly residuumderived from cherty limestone
Alredgravelly colluvium derived from cherty dolostoneover clayey residuum derived from dolostone
Hildebrechtloess over residuum derived fromdolostone
Slope Range
Wrengart2 to 35 percentAlred8 to 35 percentHildebrecht5 to 15 percent
Major Land Uses
Woodland, pasture and hayland, and cropland
2. Clarksville-Captina-ScholtenAssociation
Composition
Extent of the association in the survey area: 29percent
Extent of the components in the association (fig. 3):Clarksville and similar soils32 percentCaptina and similar soils32 percentScholten and similar soils23 percentSoils of minor extent13 percent
Soils of Minor Extent
Alred, Poynor, very deep fine-loamy soils, very deepclayey-skeletal soils, Rueter, Tilk, and Cornwall
Landscape
Clarksvillenarrow, rounded summits and backslopesCaptinamoderately wide, rounded summits and
shouldersScholtennarrow, rounded summits and backslopes
Parent Material
Clarksvillegravelly colluvium derived from chertydolostone
Captinaloess over loamy material derived from dolostone
The general soil map in this publication showsbroad areas that have a distinctive pattern of soils,relief, and drainage. These broad areas are calledassociations. Each association on the general soilmap is a unique natural landscape. Typically, itconsists of one or more major soils or miscellaneousareas and some minor soils or miscellaneous areas. Itis named for the major soils or miscellaneous areas.The components of one association can occur inanother but in a different pattern.
The general soil map can be used to compare thesuitability of large areas for general land uses. Areas ofsuitable soils can be identified on the map. Likewise,areas where the soils are not suitable can beidentified.
Because of its small scale, the map is not suitablefor planning the management of a farm or field or forselecting a site for a road or building or other structure.The soils in any one association differ from place toplace in slope, depth, drainage, and othercharacteristics that affect management.
1. Wrengart-Alred-HildebrechtAssociation
Composition
Extent of the association in the survey area: 44percent
Extent of the components in the association (fig. 2):Wrengart and similar soils47 percentAlred and similar soils32 percentHildebrecht and similar soils10 percentSoils of minor extent11 percent
Soils of Minor Extent
Rueter and Gepp, very deep fine-loamy soils, andvery deep clayey-skeletal soils
Landscape
Wrengartsummits, backslopes, and footslopesAlredshoulders and backslopesHildebrechtsummits and shoulders
16 Soil Survey
Figure 3.Typical pattern of soils and parent material in the Clarksville-Captina-Scholten association.
Figure 2.Typical pattern of soils and parent material in the Wrengart-Alred-Hildebrecht association.
Bollinger County, Missouri 17
Scholtengravelly colluvium derived from chertylimestone
Slope Range
Clarksville8 to 45 percentCaptina3 to 15 percentScholten3 to 45 percent
Major Land Uses
Woodland, pasture, and hayland
3. Calhoun-Falaya-ForestdaleAssociation
Composition
Extent of the association in the survey area: 11percent
Extent of the components in the association (fig. 4):Calhoun and similar soils58 percent
Falaya and similar soils11 percentForestale and similar soils11 percentSoils of minor extent20 percent
Soils of Minor Extent
Bosket, Dubbs, Malden, and Oaklimeter soils, andareas of water
Landscape
Calhounlow terracesFalayanatural levees and low terracesForestdalelow terraces
Parent Material
Calhounsilty alluvium or loessFalayasilty alluvium from loessForestdaleclayey and silty alluvium
Slope Range
Calhoun0 to 1 percent
Figure 4.Typical pattern of soils and parent material in the Calhoun-Falaya-Forestdale association.
18 Soil Survey
Falaya0 to 1 percentForestdale0 to 1 percent
Major Land Uses
Cropland
4. Tilk-Secesh-CornwallAssociation
Composition
Extent of the association in the survey area: 7percent
Extent of the components in the association (fig. 5):Tilk and similar soils49 percent
Secesh and similar soils19 percentCornwall and similar soils18 percentSoils of minor extent14 percent
Soils of Minor Extent
Bearthicket, Gladden, Higdon, Marquand, andPoynor
Landscape
Tilklow stream terraces and flood plainsSeceshlow stream terracesCornwallfootslopes and high stream terraces
Parent Material
Tilkloamy and sandy alluvium that has a highcontent of rock fragments
Figure 5.Typical pattern of soils and parent material in the Tilk-Secesh-Cornwall association.
Bollinger County, Missouri 19
Seceshabout 2 feet of loamy material over gravellyresiduum or alluvium
Cornwallloess over valley fill materials
Slope Range
Tilk0 to 3 percentSecesh0 to 3 percentCornwall3 to 8 percent
Major Land Uses
Pasture, hayland, and cropland
5. Haymond-Wakeland-MoniteauAssociation
Composition
Extent of the association in the survey area: 6 percent
Extent of the components in the association (fig. 6):Haymond and similar soils24 percentWakeland and similar soils13 percentMoniteau and similar soils13 percentSoils of minor extent50 percent
Soils of Minor Extent
Sandbur, Secesh, and Wideman
Landscape
Haymondflood plainsWakelandflood plainsMoniteauflood plains and stream terraces
Parent Material
Haymondsilty alluviumWakelandsilty alluviumMoniteausilty alluvium
Figure 6.Typical pattern of soils and parent material in the Haymond-Wakeland-Moniteau association.
20 Soil Survey
Slope Range
Haymond0 to 3 percentWakeland0 to 3 percentMoniteau0 to 3 percent
Major Land Uses
Pasture and hayland
6. Wrengart-Minnith AssociationComposition
Extent of the association in the survey area: 2percent
Extent of the components in the association (fig. 7):Wrengart and similar soils63 percentMinnith and similar soils27 percentSoils of minor extent10 percent
Soils of Minor Extent
Alred, Elsah, and Haymond
Landscape
Wrengartsummits, backslopes, and footslopesMinnithshoulders, backslopes, and footslopes
Parent Material
Wrengartfine-silty loess over gravelly residuumderived from cherty limestone
Minnithloess and loamy residuum from sandstone
Slope Range
Wrengart2 to 35 percentMinnith8 to 30 percent
Major Land Uses
Woodland, pasture and hayland, and cropland
Figure 7.Typical pattern of soils and parent material in the Wrengart-Minnith association.
Bollinger County, Missouri 21
7. Memphis-Alred-WrengartAssociation
Composition
Extent of the association in the survey area: 1 percentExtent of the components in the association (fig. 8):Memphis and similar soils57 percentAlred and similar soils28 percentWrengart and similar soils6 percentSoils of minor extent9 percent
Soils of Minor Extent
Brussels, Gasconade, Rueter, and Gepp
Landscape
Memphissummits and shouldersAlredbackslopesWrengartsummits, backslopes, and
footslopes
Parent Material
MemphisloessAlredgravelly colluvium derived from cherty
dolostone over clayey residuum derived fromdolostone
Wrengartfine-silty loess over gravelly residuumderived from cherty limestone
Slope Range
Memphis3 to 15 percentAlred8 to 35 percent
Wrengart2 to 35 percent
Major Land Uses
Woodland, pasture and hayland, and cropland
Figure 8.Typical pattern of soils and parent material in the Memphis-Alred-Wrengart association.
23
Detailed Soil Map Units
The presence of minor components in a map unitin no way diminishes the usefulness or accuracy ofthe data. The objective of mapping is not to delineatepure taxonomic classes but rather to separate thelandscape into landforms or landform segmentsthat have similar use and management requirements.The delineation of such segments on the mapprovides sufficient information for the developmentof resource plans. If intensive use of small areas isplanned, however, onsite investigation is neededto define and locate the soils and miscellaneousareas.
An identifying symbol precedes the map unit namein the map unit descriptions. Each descriptionincludes general facts about the unit and gives theprincipal hazards and limitations to be considered inplanning for specific uses.
Soils that have profiles that are almost alike makeup a soil series. Except for differences in texture of thesurface layer, all the soils of a series have majorhorizons that are similar in composition, thickness,and arrangement.
Soils of one series can differ in texture of thesurface layer, slope, stoniness, salinity, degree oferosion, and other characteristics that affect their use.On the basis of such differences, a soil series isdivided into soil phases. Most of the areas shown onthe detailed soil maps are phases of soil series. Thename of a soil phase commonly indicates a featurethat affects use or management. For example, Captinasilt loam, 3 to 8 percent slopes, is a phase of theCaptina series.
Some map units are made up of two or more majorsoils or miscellaneous areas. These map units arecomplexes. A complex consists of two or more soils ormiscellaneous areas in such an intricate pattern or insuch small areas that they cannot be shownseparately on the maps. The pattern and proportion ofthe soils or miscellaneous areas are somewhat similarin all areas. Alred-Rueter complex, 15 to 35 percentslopes, very stony, is an example.
Table 4 gives the acreage and proportionate extentof each map unit. Other tables give properties of thesoils and the limitations, capabilities, and potentialsfor many uses. The Glossary defines many of the
The map units delineated on the detailed soil mapsin this survey represent the soils or miscellaneousareas in the survey area. The map unit descriptions inthis section, along with the maps, can be used todetermine the suitability and potential of a unit forspecific uses. They also can be used to plan themanagement needed for those uses.
A map unit delineation on a soil map represents anarea dominated by one or more major kinds of soil ormiscellaneous areas. A map unit is identified andnamed according to the taxonomic classification of thedominant soils. Within a taxonomic class there areprecisely defined limits for the properties of the soils.On the landscape, however, the soils are naturalphenomena, and they have the characteristic variabilityof all natural phenomena. Thus, the range of someobserved properties may extend beyond the limitsdefined for a taxonomic class. Areas of soils of asingle taxonomic class rarely, if ever, can be mappedwithout including areas of other taxonomic classes.Consequently, every map unit is made up of the soilsor miscellaneous areas for which it is named andsome minor components that belong to taxonomicclasses other than those of the major soils.
Most minor soils have properties similar to those ofthe dominant soil or soils in the map unit, and thusthey do not affect use and management. These arecalled noncontrasting, or similar, components. Theymay or may not be mentioned in a particular map unitdescription. Other minor components, however, haveproperties and behavioral characteristics divergentenough to affect use or to require differentmanagement. These are called contrasting, ordissimilar, components. They generally are in smallareas and could not be mapped separately because ofthe scale used. Some small areas of stronglycontrasting soils or miscellaneous areas are identifiedby a special symbol on the maps. The contrastingcomponents are mentioned in the map unitdescriptions. A few areas of minor components maynot have been observed, and consequently they arenot mentioned in the descriptions, especially wherethe pattern was so complex that it was impractical tomake enough observations to identify all the soils andmiscellaneous areas on the landscape.
24 Soil Survey
terms used in describing the soils or miscellaneousareas.
60033Wrengart silt loam, 5 to 9percent slopes, eroded
Setting
Landform: HillslopesPosition on the landform: Shoulders and backslopesParent material: Fine-silty loess over gravelly residuum
derived from cherty limestone
Composition
Wrengart and similar soils85 percentMinor components15 percent Winfield Hildebrecht
Typical Profile
Ap0 to 5 inches; silt loamBE5 to 11 inches; silt loamBt11 to 34 inches; silty clay loam2Btx34 to 57 inches; silty clay loam3Bt57 to 62 inches; extremely gravelly silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.2 to 0.6 inch per hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 24 to 42 inches
60046Minnith silt loam, 15 to 30percent slopes
Setting
Landform: HillslopesPosition on the landform: BackslopesParent material: Fine-silty loess over loamy residuum
derived from sandstone
Composition
Minnith and similar soils80 percentMinor components20 percent Shallow, loamy soils Rock outcrop
Moderately deep, fine-loamy soils Very deep, well drained, fine-loamy soils
Typical Profile
Ap0 to 5 inches; silt loamBt15 to 35 inches; silt clay loam2Bt235 to 80 inches; loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 36 to 72 inches
60053Winfield silt loam, 3 to 8percent slopes, eroded
Setting
Landform: RidgesPosition on the landform: SummitsParent material: Loess
Composition
Winfield and similar soils85 percentMinor components15 percent Very deep, well drained, fine-silty soils Wrengart Hildebrecht
Typical Profile
Ap0 to 6 inches; silt loamBt16 to 20 inches; silt loamBt220 to 26 inches; silty clay loamBt326 to 52 inches; silt loamBt452 to 60 inches; silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)Available water capacity: Very high (more than 12
inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: 20 to 30 inches
Bollinger County, Missouri 25
60054Minnith silt loam, 8 to 15percent slopes
Setting
Landform: HillslopesPosition on the landform: Summits, shoulders, and
backslopesParent material: Fine-silty loess over loamy residuum
derived from sandstone
Composition
Minnith and similar soils85 percentMinor components15 percent Moderately deep, loamy soils Very deep, loamy soils
Typical Profile
Ap0 to 5 inches; silt loamBt15 to 35 inches; silty clay loam2Bt235 to 80 inches; loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 36 to 72 inches
60055Winfield silt loam, 2 to 5percent slopes
Setting
Landform: RidgesPosition on the landform: SummitsParent material: Loess
Composition
Winfield and similar soils92 percentMinor components8 percent Wrengart
Typical Profile
Ap0 to 9 inches; silt loamBE9 to 13 inches; silt loamBt13 to 62 inches; silty clay loamC62 to 80 inches; silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)
Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 24 to 42 inches
66000Moniteau silt loam, 0 to 3percent slopes, occasionallyflooded
Setting
Landform: River valleysPosition on the landform: High flood plainsParent material: Silty alluvium
Composition
Moniteau and similar soils90 percentMinor components10 percent Wakeland Wilbur
Typical Profile
Ap0 to 10 inches; silt loamE10 to 18 inches; silt loamBtg118 to 34 inches; silt loamBtg234 to 75 inches; silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Poorly drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: Very high (more than 12
inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: Occasional (5 to 50 percent chance in any
year)Depth to water table: 0 to 12 inches
66054Wakeland silt loam, 0 to 2percent slopes, frequentlyflooded
Setting
Landform: River valleysPosition on the landform: Low flood plainsParent material: Silty alluvium
Composition
Wakeland and similar soils85 percent
26 Soil Survey
Minor components15 percent Haymond Wideman Kaintuck
Typical Profile
A0 to 6 inches; silt loamBw6 to 24 inches; silt loamBg24 to 58 inches; silt loamAb58 to 80 inches; silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Somewhat poorly drainedPermeability: Moderate (0.6 inch to 2 inches per hour)Available water capacity: Very high (more than 12
inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: Frequent (more than a 50 percent chance in
any year)Depth to water table: 15 to 24 inches
66055Haymond silt loam, 0 to 3percent slopes, occasionallyflooded
Setting
Landform: River valleysPosition on the landform: High flood plainsParent material: Silty alluvium
Composition
Haymond and similar soils90 percentMinor components10 percent Sandbur Wakeland Relfe
Typical Profile
A0 to 5 inches; silt loamBw15 to 51 inches; silt loamBw251 to 80 inches; silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)Available water capacity: Very high (more than 12
inches)Shrink-swell potential: Low (0 to 3 percent)
Flooding: Occasional (5 to 50 percent chance in anyyear)
Depth to water table: More than 6 feet
73055Alred-Rueter complex,15 to 35 percent slopes, verystony
Setting
Landform: HillslopesPosition on the landform: BackslopesParent material: Colluvium over residuum derived from
cherty dolostone
Composition
Alred and similar soils45 percentRueter and similar soils35 percentMinor components20 percent Gepp Very deep, fine-loamy soils Very deep, clayey-skeletal or clayey soils Coulstone Bender
Typical Profile
AlredOi0 to 1 inch; slightly decomposed plant materialA1 to 7 inches; very gravelly silt loamE7 to 11 inches; gravelly silt loamBt111 to 30 inches; very gravelly silt loam2Bt230 to 79 inches; cobbly clay
RueterOi0 to 1 inch; slightly decomposed plant materialA1 to 4 inches; very gravelly silt loamE4 to 17 inches; gravelly silt loamBt117 to 32 inches; very gravelly silt loam2Bt232 to 43 inches; very gravelly silty clay3Bt343 to 71 inches; very cobbly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Alredwell drained; Rueter
somewhat excessively drainedPermeability: Alredmoderate (0.6 inch to 2 inches
per hour) over slow (0.06 to 0.2 inch per hour);Ruetermoderate (0.6 inch to 2 inches per hour)
Available water capacity: LowShrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: More than 6 feet
Bollinger County, Missouri 27
73100Wrengart silt loam, 2 to 5percent slopes
Setting
Landform: RidgesPosition on the landform: SummitsParent material: Fine-silty loess over clayey residuum
derived from dolostone
Composition
Wrengart and similar soils90 percentMinor components10 percent Winfield Hildebrecht
Typical Profile
Ap0 to 8 inches; silt loamBt8 to 36 inches; silty clay loam2Btx36 to 61 inches; silt loam3Bt61 to 80 inches; gravelly silt clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 24 to 42 inches
73101Wrengart silt loam, 5 to 9percent slopes
Setting
Landform: Ridges and hillslopesPosition on the landform: Summits and backslopesParent material: Fine-silty loess over clayey residuum
derived from dolostone
Composition
Wrengart and similar soils90 percentMinor components10 percent Winfield Hildebrecht
Typical Profile
Ap0 to 8 inches; silt loamBt8 to 36 inches; silty clay loam2Btx36 to 61 inches; silt loam3Bt61 to 80 inches; gravelly silty clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 24 to 42 inches
73139Poynor-Clarksville-Scholten complex, 8 to 15percent slopes, stony
Setting
Landform: RidgesPosition on the landform: SummitsParent material: Poynorgravelly colluvium over
clayey residuum from cherty dolostone;Clarksvillegravelly colluvium derived from chertydolostone; Scholtengravelly colluvium derivedfrom cherty dolostone
Composition
Poynor and similar soils35 percentClarksville and similar soils32 percentScholten and similar soils15 percentMinor components18 percent Very deep, fine-loamy soils Yelton Very deep, clayey-skeletal or clayey soils Bender
Typical Profile
PoynorOi0 to 1 inch; slightly decomposed plant materialA1 to 4 inches; gravelly silt loamE4 to 13 inches; very gravelly silt loamBt113 to 24 inches; extremely gravelly silt loam2Bt224 to 80 inches; clay
ClarksvilleOi0 to 1 inch; slightly decomposed plant materialA1 to 5 inches; gravelly silt loamE5 to 8 inches; gravelly silt loamBt18 to 18 inches; very gravelly loam2Bt218 to 42 inches; very gravelly loam3Bt342 to 65 inches; clay
ScholtenOi0 to 1 inch; slightly decomposed plant materialA1 to 3 inches; gravelly silt loamE3 to 8 inches; gravelly silt loam
28 Soil Survey
Bt8 to 17 inches; very gravelly silty clay loam2Btx17 to 41 inches; very gravelly silt loam3Bt41 to 80 inches; gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Poynorwell drained; Clarksville
somewhat excessively drained; Scholtenmoderately well drained
Permeability: Poynormoderate (0.6 inch to 2 inchesper hour); Clarksvillemoderate (0.6 inch to 2inches per hour); Scholtenmoderate (0.6 inch to2 inches per hour) over very slow (less than 0.06inch per hour)
Available water capacity: Poynorlow (3 to 6 inches);Clarksvillelow (3 to 6 inches); Scholtenverylow (0 to 3 inches)
Shrink-swell potential: Poynormoderate (3 to 6percent); Clarksvillelow (0 to 3 percent);Scholtenmoderate (3 to 6 percent)
Flooding: NoneDepth to water table: Poynormore than 6 feet;
Clarksvillemore than 6 feet; Scholten12 to 29inches
73140Clarksville-Scholtencomplex, 15 to 45 percentslopes, very stony
Setting
Landform: HillslopesPosition on the landform: BackslopesParent material: Gravelly colluvium derived from cherty
dolostone
Composition
Clarksville and similar soils50 percentScholten and similar soils30 percentMinor components20 percent Tilk Very deep, fine-loamy soils Poynor
Typical Profile
ClarksvilleOi0 to 1 inch; slightly decomposed plant materialA1 to 6 inches; gravelly silt loamE6 to 13 inches; gravelly silt loamBt113 to 21 inches; very gravelly silt loam2Bt221 to 43 inches; extremely gravelly clay loam3Bt343 to 66 inches; very gravelly clay
ScholtenOi0 to 1 inch; slightly decomposed plant materialA1 to 6 inches; very gravelly silt loamE6 to 13 inches; very gravelly silt loamBt13 to 34 inches; extremely gravelly clay loam2Btx34 to 58 inches; very gravelly loam3Bt58 to 80 inches; very gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Clarksvillesomewhat excessively
drained; Scholtenmoderately well drainedPermeability: Clarksvillemoderate (0.6 inch to 2
inches per hour); Scholtenmoderate (0.6 inch to2 inches per hour) over very slow (less than 0.06inch per hour)
Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: Clarksvillemore than 6 feet;
Scholten14 to 35 inches
73141Firebaugh silt, 3 to 8percent slopes
Setting
Landform: RidgesPosition on the landform: SummitsParent material: Loess over loamy and clayey
residuum derived from cherty dolostone
Composition
Firebaugh and similar soils90 percentMinor components10 percent Scholten Clarksville
Typical Profile
Oi0 to 1 inch; slightly decomposed plant materialA1 to 4 inches; siltE4 to 8 inches; siltBt8 to 21 inches; silty clay loam2Btx21 to 36 inches; very gravelly silt loam3Bt36 to 71 inches; extremely cobbly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)
over slow (0.06 to 0.2 inch per hour)Available water capacity: Moderate (6 to 9 inches)
Bollinger County, Missouri 29
Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 18 to 26 inches
73145Crider silt loam, 3 to 8percent slopes, eroded
Setting
Landform: BasinsPosition on the landform: SummitsParent material: Loess over clayey residuum derived
from dolostone
Composition
Crider and similar soils90 percentMinor components10 percent Very deep, fine soils Hildebrecht Caneyville Rock outcrop
Typical Profile
Ap0 to 8 inches; silt loamBt18 to 32 inches; silty clay loam2Bt232 to 74 inches; silty clay loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Well drainedPermeability: Moderate (0.6 inch to 2 inches per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: More than 6 feet
73146Marquand silt loam, 3 to 8percent slopes
Setting
Landform: Hillslopes and basin floorsPosition on the landform: FootslopesParent material: Silty and loamy slope alluvium derived
from limestone and dolostone
Composition
Marquand and similar soils90 percentMinor components10 percent Cornwall Bearthicket Higdon
Typical Profile
Ap0 to 5 inches; silt loamE5 to 8 inches; silt loamBt18 to 22 inches; silty clay loam2Bt222 to 43 inches; silty clay loam3Bt343 to 80 inches; silty clay loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: 24 to 30 inches
73150Caneyville-Bucklickcomplex, 8 to 15 percent slopes,rocky
Setting
Landform: HillslopesPosition on the landform: BackslopesParent material: Caneyvilleclayey residuum derived
from dolostone; Bucklickloess over clayeyresiduum derived from dolostone
Composition
Caneyville and similar soils50 percentBucklick and similar soils35 percentMinor components15 percent Gasconade Gepp Crider Rock outcrop
Typical Profile
CaneyvilleAp0 to 8 inches; silt loamBt18 to 18 inches; clayBt218 to 30 inches; clayR30 inches; bedrock
BucklickAp0 to 3 inches; silt loamBt13 to 16 inches; silty clay2Bt216 to 45 inches; clay2R45 inches; bedrock
Soil Properties and Qualities
Depth to bedrock: Caneyvillemoderately deep (20 to40 inches); Bucklickdeep (40 to 60 inches)
30 Soil Survey
Drainage class: Well drainedPermeability: Caneyvilleslow (0.06 to 0.2 inch per
hour); Bucklickmoderate (0.6 inch to 2 inchesper hour)
Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Caneyvillemoderate (3 to 6
percent); Bucklickhigh (6 to 9 percent)Flooding: NoneDepth to water table: More than 6 feet
73151Caneyville-Gasconade-Bucklick complex, 15 to 25percent slopes, rocky
Setting
Landform: HillslopesPosition on the landform: BackslopesParent material: Caneyvilleclayey residuum derived
from dolostone; Gasconaderesiduum derivedfrom dolostone; Bucklickloess over clayeyresiduum derived from dolostone
Composition
Caneyville and similar soils40 percentGasconade and similar soils30 percentBucklick and similar soils25 percentMinor components5 percent Rock outcrop
Typical Profile
CaneyvilleOi0 to 1 inch; slightly decomposed plant materialA1 to 4 inches; silt loamBt14 to 11 inches; silty clayBt211 to 31 inches; silty clayR31 inches; bedrock
GasconadeA0 to 3 inches; silty clayBw3 to 16 inches; very cobbly silty clay loamR16 inches; bedrock
BucklickOi0 to 1 inch; slightly decomposed plant materialA1 to 6 inches; silt loamBt16 to 31 inches; silty clay2Bt231 to 47 inches; clay2R47 inches; bedrock
Soil Properties and Qualities
Depth to bedrock: Caneyvillemoderately deep (20 to40 inches); Gasconadevery shallow and shallow(4 to 20 inches); Bucklickdeep (40 to 60 inches)
Drainage class: Caneyvillewell drained;Gasconadesomewhat excessively drained;Bucklickwell drained
Permeability: Caneyvilleslow (0.06 inch to 0.2inches per hour); Gasconademoderately slow(0.2 to 0.6 inch per hour); Bucklickmoderate (0.6inch to 2 inches per hour)
Available water capacity: Caneyvillelow (3 to 6inches); Gasconadevery low (0 to 3 inches);Bucklicklow (3 to 6 inches)
Shrink-swell potential: Caneyvillemoderate (3 to 6percent); Gasconademoderate (3 to 6 percent);Bucklickhigh (6 to 9 percent)
Flooding: NoneDepth to water table: More than 6 feet
73156Alred-Gepp complex,8 to 15 percent slopes, stony
Setting
Landform: HillslopesPosition on the landform: Summits and shouldersParent material: Alredgravelly colluvium over clayey
residuum derived from dolostone; Geppclayeyresiduum derived from dolostone
Composition
Alred and similar soils55 percentGepp and similar soils20 percentMinor components25 percent Clarksville Very deep, clayey-skeletal soils Gasconade Moderately deep, loamy-skeletal soils
Typical Profile
AlredOi0 to 1 inch; slightly decomposed plant materialA1 to 6 inches; very gravelly silt loamE6 to 11 inches; gravelly silt loamBt111 to 31 inches; very gravelly silt loam2Bt231 to 79 inches; clay
GeppOi0 to 1 inch; slightly decomposed plant materialA1 to 6 inches; very gravelly silt loamBt16 to 12 inches; clayBt212 to 67 inches; clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Well drainedPermeability: Alredmoderate (0.6 inch to 2 inches
Bollinger County, Missouri 31
per hour) over slow (0.06 to 0.2 inch per hour);Geppmoderate (0.6 inch to 2 inches per hour)
Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: More than 6 feet
73157Captina silt loam, 3 to 8percent slopes
Setting (fig. 9)
Landform: RidgesPosition on the landform: SummitsParent material: Loess over loamy colluvium and
residuum derived from dolostone
Composition
Captina and similar soils90 percentMinor components10 percent Scholten Clarksville Very deep, fine-silty soils
Typical Profile
Ap0 to 5 inches; silt loamBt5 to 25 inches; silty clay loam2Btx25 to 31 inches; extremely gravelly silt loam3Bt31 to 78 inches; gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)
over slow (0.06 to 0.2 inch per hour)Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 18 to 36 inches
73223Coulstone-Bendercomplex, 15 to 50 percentslopes, very stony
Setting
Landform: Hillslopes
Figure 9.Mixed hardwoods in an area of Captina silt loam, 3 to 8 percent slopes.
32 Soil Survey
Position on the landform: BackslopesParent material: Coulstonegravelly colluvium derived
from sandstone; Benderresiduum fromsandstone
Composition
Coulstone and similar soils40 percentBender and similar soils25 percentMinor components35 percent Clarksville Scholten Rock outcrop
Typical Profile
CoulstoneOe0 to 1 inch; moderately decomposed plant
materialA1 to 6 inches; extremely cobbly sandy loamBt16 to 29 inches; extremely cobbly sandy loam2Bt229 to 42 inches; extremely stony sandy loam3Bt342 to 80 inches; extremely stony clay loam
BenderOe0 to 1 inch; moderately decomposed plant
materialA1 to 5 inches; extremely cobbly sandy loamBt15 to 21 inches; extremely cobbly sandy loamBt221 to 31 inches; extremely stony sandy loam2R31 to 80 inches; bedrock
Soil Properties and Qualities
Depth to bedrock: Coulstonevery deep (more than60 inches); Bendermoderately deep (20 to 40inches)
Drainage class: Somewhat excessively drainedPermeability: Moderately rapid (2 to 6 inches per hour)Available water capacity:Very low (0 to 3 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: More than 6 feet
73264Alred-Wrengart complex,14 to 35 percent slopes, verystony, rocky
Setting (fig. 10)
Landform: HillslopesPosition on the landform: Alredbackslopes;
WrengartfootslopesParent material: Alredcherty colluvium over clayey
residuum derived from cherty dolostone;Wrengartloess over residuum derived fromcherty dolostone
Composition
Alred and similar soils55 percentWrengart and similar soils15 percentMinor components30 percent Rueter Very deep, clayey-skeletal soils Scholten Very deep, fine-loamy soils Gepp Rock outcrop
Typical Profile
AlredOi0 to 1 inch; slightly decomposed plant materialA1 to 3 inch; gravelly silt loamE3 to 8 inches; gravelly silt loamBt18 to 22 inches; very gravelly silty clay loam2Bt222 to 80 inches; gravelly clay
WrengartOi0 to 1 inch; slightly decomposed plant materialA1 to 10 inches; silt loamBt10 to 30 inches; silt loamBtx30 to 53 inches; silty clay loam2Bt53 to 80 inches; very gravelly silty clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Alredwell drained; Wrengart
moderately well drainedPermeability: Alredmoderate (0.6 inch to 2 inches
per hour) over slow (0.06 to 0.2 inch per hour);Wrengartmoderately slow (0.2 to 0.6 inch perhour)
Available water capacity: Alredmoderate (6 to 9inches); Wrengarthigh (9 to 12 inches)
Shrink-swell potential: Alredmoderate (3 to 6percent); Wrengartlow (0 to 3 percent)
Flooding: NoneDepth to water table: Alredmore than 6 feet;
Wrengart30 to 38 inches
73265Captina-Scholten complex,3 to 8 percent slopes
Setting
Landform: RidgesPosition on the landform: Captinasummits;
ScholtenshouldersParent material: Captinaloess over loamy colluvium
and residuum derived from dolostone; Scholtencolluvium derived from cherty dolostone
Bollinger County, Missouri 33
Composition
Captina and similar soils75 percentScholten and similar soils15 percentMinor components10 percent Very deep, fine-silty soils Clarksville Poynor
Typical ProfileCaptinaAp0 to 8 inches; silt loamBt8 to 26 inches; silty clay loam2Btx26 to 43 inches; extremely gravelly silt loam3Bt43 to 80 inches; very cobbly clay
ScholtenA0 to 2 inches; gravelly silt loamE2 to 7 inches; gravelly silt loamBt7 to 16 inches; very gravelly silty clay loam2Btx16 to 40 inches; extremely gravelly silt loam3Bt40 to 80 inches; very gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Captinamoderate (0.6 inch to 2 inches
per hour) over slow (less than 0.06 inch per hour);Scholtenmoderate (0.6 inch to 2 inches perhour) over very slow (0.06 to 0.2 inch per hour)
Available water capacity: Captinalow (3 to 6 inches);Scholtenvery low (0 to 3 inches)
Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: Captina19 to 34 inches;
Scholten12 to 29 inches
73266Hildebrecht silt loam,8 to 15 percent slopes, eroded
Setting
Landform: Hillslopes
Figure 10.A typical land use pattern in an area of Alred-Wrengart complex, 14 to 35 percent slopes, very stony, rocky.The less sloping areas are cleared and used for pasture and hayland, while the steeper areas remain forested.
34 Soil Survey
Position on the landform: BackslopesParent material: Loess over residuum derived from
dolostone
Composition
Hildebrecht and similar soils85 percentMinor components15 percent Wrengart Very deep, clayey-skeletal soils Alred
Typical Profile
A0 to 4 inches; silt loamBt4 to 36 inches; silty clay loamBtx136 to 39 inches; silt loamBtx239 to 62 inches; extremely gravelly silt loam2Bt62 to 80 inches; gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)
above the fragipan and very slow (less than 0.06inch per hour) in the fragipan
Available water capacity: Moderate (6 to 9 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 24 to 36 inches
73267Yelton-Scholten complex,8 to 15 percent slopes
Setting
Landform: HillslopesPosition on the landform: Shoulders and backslopesParent material: Yeltonloess over colluvium from
cherty dolostone and sandstone; Scholtencolluvium derived from cherty dolostone
Composition
Yelton and similar soils65 percentScholten and similar soils20 percentMinor components15 percent Clarksville Poynor Very deep, moderately well drained, fine-silty soils
Typical Profile
YeltonA0 to 5 inches; silt loamE5 to 11 inches; silt loamBt11 to 29 inches; clay loam
2Btx29 to 42 inches; very gravelly loam3Bt42 to 80 inches; very gravelly sandy clay loam
ScholtenA0 to 2 inches; gravelly silt loamE2 to 7 inches; gravelly silt loamBt7 to 16 inches; very gravelly silty clay loam2Btx16 to 40 inches; extremely gravelly silt loam3Bt40 to 80 inches; gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Yeltonmoderate (0.6 inch to 2 inches
per hour) over very slow (less than 0.06 inch perhour); Scholtenmoderate (0.6 inch to 2 inchesper hour) over slow (0.06 to 0.2 inch per hour)
Available water capacity: Yeltonlow (3 to 6 inches);Scholtenvery low (0 to 3 inches)
Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: Yelton18 to 24 inches;
Scholten12 to 29 inches
73269Brussels-Gasconade-Rock outcrop complex, 30 to 90percent slopes, very bouldery
Setting
Landform: HillslopesPosition on the landform: Brusselsbackslopes;
Gasconadebackslopes and shouldersParent material: Brusselsgravelly colluvium over
gravelly residuum derived from dolostone;Gasconadegravelly residuum derived fromdolostone
Composition
Brussels40 percentGasconade and similar soils30 percentRock outcrop15 percentMinor components15 percent Poynor Caneyville Vertical bluffs
Typical Profile
BrusselsOi0 to 1 inch; slightly decomposed plant materialA1 to 10 inches; gravelly silty clay loamBw110 to 49 inches; very gravelly silty clay loamBw249 to 70 inches; gravelly silty clay loam
Bollinger County, Missouri 35
GasconadeA0 to 9 inches; cobbly clayBw9 to 14 inches; very cobbly clayR14 inches; bedrock
Soil Properties and Qualities
Depth to bedrock: Brusselsvery deep (more than 60inches); Gasconadevery shallow and shallow(4 to 20 inches)
Drainage class: Brusselswell drained; Gasconadesomewhat excessively drained
Permeability: Moderately slow (0.2 to 0.6 inch perhour)
Available water capacity: Brusselslow (3 to 6inches); Gasconadevery low (0 to 3 inches)
Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: More than 6 feet
Description of Rock Outcrop
Kind of bedrock: Dolostone
73270Wrengart silt loam, 9 to 14percent slopes, eroded
Setting
Landform: HillslopesPosition on the landform: BackslopesParent material: Loess over residuum from cherty
limestone
Composition
Wrengart and similar soils90 percentMinor components10 percent Alred Hildebrech Very deep, clayey-skeletal or clayey soils
Typical Profile
Ap0 to 6 inches; silt loamBt6 to 26 inches; silty clay loamBtx26 to 45 inches; silt loam2Bt145 to 60 inches; very gravelly silt loam3Bt260 to 80 inches; gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: Moderate (6 to 9 inches)Shrink-swell potential: Moderate (3 to 6 percent)
Flooding: NoneDepth to water table: 24 to 42 inches
73343Captina silt loam, 3 to 8percent slopes, eroded
Setting
Landform: RidgesPosition on the landform: Summits and shouldersParent material: Loess over loamy colluvium and
residuum derived from dolostone
Composition
Captina and similar soils85 percentMinor components15 percent Very deep, fine-silty soils Clarksville Scholten
Typical Profile
Ap0 to 4 inches; silt loamBt4 to 20 inches; silty clay loam2Btx20 to 28 inches; extremely gravelly silt loam3Bt28 to 75 inches; gravelly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)
over slow (0.06 to 0.2 inch per hour)Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: NoneDepth to water table: 19 to 33 inches
73344Captina silt loam, 8 to 15percent slopes, eroded
Setting
Landform: HillslopesPosition on the landform: Shoulders and backslopesParent material: Loess over loamy colluvium and
residuum derived from dolostone
Composition
Captina and similar soils85 percentMinor components15 percent Poynor Clarksville Scholten
36 Soil Survey
Typical Profile
Ap0 to 7 inches; silt loamBt7 to 24 inches; silty clay loamBtx24 to 47 inches; gravelly silt clay loam2Bt47 to 75 inches; very gravelly silty clay loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)
over slow (0.06 to 0.2 inch per hour)Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: 19 to 33 inches
73345Hildebrecht silt loam, 5 to 9percent slopes
Setting (fig. 11)
Landform: Ridges
Position on the landform: SummitsParent material: Loess over loamy residuum derived
from dolostone
Composition
Hildebrecht and similar soils90 percentMinor components10 percent Wrengart Alred
Typical Profile
Ap0 to 11 inches; silt loamBt11 to 27 inches; silty clay loam2Btx27 to 44 inches; very gravelly silt loam3Bt44 to 60 inches; gravelly silty clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)
over slow (0.06 to 0.2 inch per hour)Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Low (0 to 3 percent)
Figure 11.A pasture on a narrow ridge in an area of Hildebrecht silt loam, 5 to 9 percent slopes.
Bollinger County, Missouri 37
Flooding: NoneDepth to water table: 24 to 30 inches
73346Hildebrecht silt loam, 5 to 9percent slopes, eroded
Setting
Landform: HillslopesPosition on the landform: Shoulders and backslopesParent material: Loess over loamy residuum derived
from dolostone
Composition
Hildebrecht and similar soils90 percentMinor components10 percent Wrengart Alred
Typical Profile
Ap0 to 6 inches; silt loamBt6 to 31 inches; silty clay loam2Btx31 to 52 inches; gravelly silt loam3Bt52 to 80 inches; clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderate (0.6 inch to 2 inches per hour)
over slow (0.06 to 0.2 inch per hour)Available water capacity: Moderate (6 to 9 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: 24 to 30 inches
74644Deible silt loam, 1 to 3percent slopes
Setting
Landform: River valleysPosition on the landform: High stream terracesParent material: Loess over alluvium
Composition
Deible and similar soils90 percentMinor components10 percent Higdon Moniteau
Typical Profile
Ap0 to 7 inches; silt loamE7 to 16 inches; silt loam
Btg116 to 40 inches; silty clay loam2Btg240 to 65 inches; clay loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Poorly drainedPermeability: Very slow (less than 0.06 inch per hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: High (6 to 9 percent)Flooding: NoneDepth to water table: 0 to 12 inches
74646Cornwall silt loam, 3 to 8percent slopes
Setting
Landform: HillslopesPosition on the landform: FootslopesParent material: Loess over valley fill materials
Composition
Cornwall and similar soils90 percentMinor components10 percent Marquand Higdon Tilk
Typical Profile
Ap0 to 5 inches; silt loamBt5 to 17 inches; silty clay loam2Btx17 to 39 inches; silt loam3Bt39 to 60 inches; very gravelly silty clay loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: Moderate (6 to 9 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: 18 to 36 inches
74648Aslinger silt loam, 3 to 8percent slopes
Setting
Landform: HillslopesPosition on the landform: FootslopesParent material: Loamy colluvium over loamy and
clayey alluvium
38 Soil Survey
Composition
Aslinger and similar soils85 percentMinor components15 percent Cornwall Clarksville
Typical Profile
Ap0 to 4 inches; silt loamAB4 to 8 inches; silt loamBt8 to 21 inches; silt loam2Btx21 to 29 inches; very gravelly silt loam3Bt129 to 55 inches; very gravelly clay loam4Bt255 to 70 inches; extremely cobbly clay
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Moderately well drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: 18 to 30 inches
74649Aslinger-Waben complex,3 to 15 percent slopes
Setting
Landform: HillslopesPosition on the landform: FootslopesParent material: Aslingerloamy colluvium over loamy
and clayey alluvium; Wabenloamy alluviumand/or loamy colluvium
Composition
Aslinger and similar soils70 percentWaben20 percentMinor components10 percent Marquand Clarksville
Typical Profile
AslingerAp0 to 3 inches; silt loamAB3 to 8 inches; silt loamBt8 to 20 inches; silty clay loam2Btx20 to 39 inches; gravelly silt loam3Bt139 to 52 inches; gravelly loam4Bt252 to 80 inches; gravelly clay
WabenAp0 to 6 inches; gravelly silt loamBt16 to 15 inches; very gravelly silt loam2Bt215 to 54 inches; very gravelly loam3Bt354 to 80 inches; very gravelly clay loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Aslingermoderately well drained;
Wabenwell drainedPermeability: Aslingermoderately slow (0.2 to 0.6
inch per hour); Wabenmoderately rapid (2 to 6inches per hour)
Available water capacity: Low (3 to 6 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: NoneDepth to water table: Aslinger18 to 30 inches;
Wabenmore than 6 feet
74679Higdon silt loam, 0 to 3percent slopes, rarely flooded
Setting
Landform: River valleysPosition on the landform: Low stream terracesParent material: Silty alluvium
Composition
Higdon and similar soils85 percentMinor components15 percent Moniteau Bearthicket Deible Secesh
Typical Profile
Ap0 to 7 inches; silt loamE7 to 13 inches; silt loamBt113 to 43 inches; silt loam2Bt243 to 80 inches; silty clay loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Somewhat poorly drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: Rare (1 to 5 percent chance in any year)Depth to water table: 18 to 20 inches
Bollinger County, Missouri 39
74680Moniteau silt loam, 0 to 3percent slopes, rarely flooded
Setting
Landform: River valleysPosition on the landform: Low stream terracesParent material: Silty alluvium
Composition
Moniteau85 percentMinor components15 percent Secesh Bearthicket Higdon Deible
Typical Profile
Ap0 to 6 inches; silt loamEg6 to 15 inches; silt loamBtg115 to 52 inches; silty clay loamBtg252 to 78 inches; silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Poorly drainedPermeability: Moderately slow (0.2 to 0.6 inch per
hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: Moderate (3 to 6 percent)Flooding: Rare (1 to 5 percent chance in any year)Depth to water table: 0 to 12 inches
74685Auxvasse silt loam, 2 to 5percent slopes
Setting
Landform: RidgesPosition on the landform: SummitsParent material: Fine-silty loess over clayey residuum
derived from dolostone
Composition
Auxvasse90 percentMinor components10 percent Wrengart Winfield
Typical Profile
Ap0 to 6 inches; silt loamAB6 to 17 inches; silt loam2Bt17 to 51 inches; silty clay loam2Btg51 to 80 inches; silt loam
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Somewhat poorly drainedPermeability: Very slow (less than 0.06 inch per hour)Available water capacity: High (9 to 12 inches)Shrink-swell potential: High (6 to 9 percent)Flooding: NoneDepth to water table: 12 to 24 inches
75379Kaintuck loam, 0 to 3percent slopes, frequentlyflooded
Setting
Landform: River valleysPosition on the landform: Low flood plainsParent material: Loamy alluvium over sandy alluvium
Composition
Kaintuck and similar soils85 percentMinor components15 percent Elsah Relfe Haymond
Typical Profile
Ap0 to 9 inches; loamC19 to 36 inches; fine sandy loamC236 to 80 inches; loamy fine sand
Soil Properties and Qualities
Depth to bedrock: Very deep (more than 60 inches)Drainage class: Well drainedPermeability: Moderately rapid (2 to 6 inches per hour)Available water capacity: Moderate (6 to 9 inches)Shrink-swell potential: Low (0 to 3 percent)Flooding: Frequent (more than a 50 percent chance in
any year)Depth to water table: More than 6 feet
75381Bearthicket silt loam, 0 to 3percent slopes, rarely flooded
Setting
Landform: River valleysPosition on the landform: Low stream terracesParent material: Silty alluvium
Composition
Bearthicket and similar soils85 percentMinor components15 percent
40 Soil Survey
Secesh Deible Marquand Higdon
Typical Profile
Ap0 to 6 inches; silt loamAB6 to 19 inches; silt loamBt19 to 45 inches; silt loam2BC45 to 64 inches; loam2C64 to 80 inches; coarse sandy loam
Soil Properties and Qualities
Depth to bedrock: Very deep