20220729 20545500 1.0 FALSE 62500 Soil_Special_Line_Features_2022_clipped 002 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_StatePlane_Rhode_Island_FIPS_3800_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>PROJCS[&quot;NAD_1983_StatePlane_Rhode_Island_FIPS_3800_Feet&quot;,GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Transverse_Mercator&quot;],PARAMETER[&quot;False_Easting&quot;,328083.3333333333],PARAMETER[&quot;False_Northing&quot;,0.0],PARAMETER[&quot;Central_Meridian&quot;,-71.5],PARAMETER[&quot;Scale_Factor&quot;,0.99999375],PARAMETER[&quot;Latitude_Of_Origin&quot;,41.08333333333334],UNIT[&quot;Foot_US&quot;,0.3048006096012192],AUTHORITY[&quot;EPSG&quot;,3438]]</WKT><XOrigin>-18120300</XOrigin><YOrigin>-47742100</YOrigin><XYScale>3048.0060960121928</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>2</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102730</WKID><LatestWKID>3438</LatestWKID></ProjectedCoordinateSystem> 20241008 10290300 20241008 10290300 Jim Turenne U.S. Department of Agriculture, Natural Resources Conservation Service Assistant State Soil Scientist 401-828-1300 202-720-2600 401-828-0433 Rhode Island State Office USDA - Natural Resources Conservation Service 60 Quaker Lane, Suite 46 Warwick RI 02886-0111 US jim.turenne@usda.gov Email preferred 20241008 ArcGIS Metadata 1.0 https://data.rigis.org/SOIL/soilsLines22.zip HTTPS soilsLines22.zip Original source dataset as distributed using the RI State Plane feet (NAD83) (EPSG 3438) coordinate system. No fee for downloading directly from the RIGIS Data Distribution System located at https://www.rigis.org. Esri shapefile ZIP https://www.rigis.org Enterprise Geodatabase Feature Class Soil Special Line Features; soilsLines22 2022-07-05 U.S. Department of Agriculture, Natural Resources Conservation Service, Rhode Island State Office vector digital data Suggested bibliographic reference: RIGIS, 2022. Soil Special Line Features; soilsLines22. Rhode Island Geographic Information System (RIGIS) Data Distribution System, URL: https://www.rigis.org, Environmental Data Center, University of Rhode Island, Kingston, Rhode Island (last date accessed: 05 July 2022). <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Special soil line features display locations of features too small to delineate at the mapping scale used by the Rhode Island Soil Survey Program, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes (via the MUKEY attribute field) in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.</SPAN></P></DIV></DIV> This dataset depicts information about the kinds and distribution of soils on the landscape. Special soil line features display locations of features too small to delineate at the mapping scale used by the Rhode Island Soil Survey Program, but they are large enough and contrasting enough to significantly influence use and management. U.S. Department of Agriculture, Natural Resources Conservation Service Jim Turenne U.S. Department of Agriculture, Natural Resources Conservation Service Assistant State Soil Scientist 401-828-1300 202-720-2600 401-828-0433 60 Quaker Lane, Suite 46 USDA - Natural Resources Conservation Service Rhode Island State Office Warwick RI 02886-0111 US jim.turenne@usda.gov USGS Geographic Names Information System (GNIS) Head of Westport OE S Quadrangle Rhode Island Attleboro Quadrangle Pawtucket Quadrangle Chepachet Quadrangle Providence Quadrangle Sakonnet Point Quadrangle Bristol County Voluntown Quadrangle Georgiaville Quadrangle Narragansett Pier OE S Quadrangle East Greenwich Quadrangle East Providence Quadrangle Wickford Quadrangle Coventry Center Quadrangle Crompton Quadrangle Fall River Quadrangle Oneco Quadrangle Newport Quadrangle Kent County Kingston (digital) Quadrangle Kingston OE S Quadrangle Block Island Quadrangle North Scituate Quadrangle Washington County Head of Westport (digital) Quadrangle Newport County Mystic Quadrangle Slocum Quadrangle Bristol Quadrangle Quonochontaug Quadrangle Blackstone Quadrangle Hope Valley Quadrangle Tiverton Quadrangle Watch Hill Quadrangle Franklin Quadrangle East Killingly Quadrangle Carolina Quadrangle Prudence Island Quadrangle Thompson Quadrangle Narragansett Pier (digital) Quadrangle Clayville Quadrangle Providence County Ashaway Quadrangle Uxbridge Quadrangle Oxford Quadrangle ISO 19115 Topic Category geoscientificInformation SOIL soil survey soils Soil Survey Geographic SSURGO geoscientificInformation SOIL soil survey soils Soil Survey Geographic SSURGO Head of Westport OE S Quadrangle Rhode Island Attleboro Quadrangle Pawtucket Quadrangle Chepachet Quadrangle Providence Quadrangle Sakonnet Point Quadrangle Bristol County Voluntown Quadrangle Georgiaville Quadrangle Narragansett Pier OE S Quadrangle East Greenwich Quadrangle East Providence Quadrangle Wickford Quadrangle Coventry Center Quadrangle Crompton Quadrangle Fall River Quadrangle Oneco Quadrangle Newport Quadrangle Kent County Kingston (digital) Quadrangle Kingston OE S Quadrangle Block Island Quadrangle North Scituate Quadrangle Washington County Head of Westport (digital) Quadrangle Newport County Mystic Quadrangle Slocum Quadrangle Bristol Quadrangle Quonochontaug Quadrangle Blackstone Quadrangle Hope Valley Quadrangle Tiverton Quadrangle Watch Hill Quadrangle Franklin Quadrangle East Killingly Quadrangle Carolina Quadrangle Prudence Island Quadrangle Thompson Quadrangle Narragansett Pier (digital) Quadrangle Clayville Quadrangle Providence County Ashaway Quadrangle Uxbridge Quadrangle Oxford Quadrangle <DIV STYLE="text-align:Left;"><DIV><P><SPAN>The U.S. Department of Agriculture, Natural Resources Conservation Service, should be acknowledged as the data source in products derived from these data. This data set is not designed for use as a primary regulatory tool in permitting or citing decisions, but may be used as a reference source. This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not perform any evaluations of these maps for purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than at which they were originally mapped (1:12,000 for RI SSURGO Soils data) can cause misinterpretation of the data. If enlarged, maps do not show the small areas of contrasting soils that could have been shown at a larger scale. The depicted soil boundaries, interpretations, and analysis derived from them do not eliminate the need for onsite sampling, testing, and detailed study of specific sites for intensive uses. Thus, these data and their interpretations are intended for planning purposes only. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data. This dataset is provided 'as is.’ The producer(s) of this dataset, contributors to this dataset, the Rhode Island Geographic Information System (RIGIS) consortium, the State of Rhode Island, and the University of Rhode Island do not make any warranties of any kind for this dataset, and are not liable for any loss or damage however and whenever caused by any use of this dataset. Please acknowledge both RIGIS and the primary producer(s) of this dataset in any derived products. Versions of the RIGIS logo suitable for both printed and web-based products are available at https://www.rigis.org.</SPAN></P></DIV></DIV> Although these data have been processed successfully on a computer system at the U.S. Department of Agriculture, no warranty expressed or implied is made by the Agency regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. The U.S. Department of Agriculture will warrant the delivery of this product in computer readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Request for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site. The U.S. Department of Agriculture, nor any of its agencies are liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.) The University of Rhode Island and the Rhode Island Geographic Information System make no warranty, express or implied, related to all aspects of this geospatial product, including its accuracy, reliability, completeness, currentness, and accessibility. Esri ArcGIS 10.1.1.3143 true -71.892300 -71.121700 42.004228 41.163001 publication date 1996-10-16 2022-07-05 The attribute data contained in the RIGIS soils data (points, lines, and polygons - version 17) shapefile has been revised from the 2020 RIGIS soils data This 2022 dataset contains changes to the spatial data (points, lines, polygons) for numerous areas throughout RI. This data is NOT the official USDA-NRCS SSURGO Soils Data for Rhode Island (although the spatial data contained is identical). The attribute information on the RIGIS soil data is NOT the same as the “official” soils data; if you need official soils data please use the Web Soil Survey (https://websoilsurvey.nrcs.usda.gov/app/). RIGIS Database or is it this: Rhode Island Geographic Information System (RIGIS) Data Distribution System 1996-01-01T00:00:00 Certain node/geometry and topology GT- polygon/chain relationships are collected or generated to satisfy topological requirements (the GT-polygon corresponds to the soil delineation). Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout, and the chains representing the limits of the file are free of gaps. The tests of logical consistency are performed using vendor software. All internal polygons are tested for closure with vendor software and are checked on hard copy plots. All data are checked for common soil lines (i.e., adjacent polygons with the same label). Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch. This soil survey does not edge match the Connecticut Statewide Update - Subset 1, Bristol County, Massachusetts, Northern Part, Bristol County, Massachusetts, Southern Part, and Norfolk and Suffolk Counties, Massachusetts, soil surveys. A map unit is a collection of areas defined and named in terms of their soil components or miscellaneous areas or both. Each map unit differs in some respect from all others in a survey area and each map unit has a symbol that uniquely identifies the map unit on a soil map. Each individual area, point, or line so identified on the map is a delineation. Soil Scientists identify small areas of soils or miscellaneous areas that have properties and behavior significantly different than the named soils in the surrounding map unit. These minor components may be indicated as special features. If they have a minimal effect on use and management, or could not be precisely located, they may not be indicated on the map. A map unit has specified kinds of soils or miscellaneous areas (map unit components), each with a designated range in proportionate extent. Map units include one or more kinds of soil or miscellaneous area. Miscellaneous areas are areas that have little or no recognizable soil. Specific National Cooperative Soil Survey standards and procedures were used in the classification of soils, design and name of map units, and location of special soil features. These standards are outlined in Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, NRCS; Agricultural Handbook 436, Soil Taxonomy, 1995, USDA, NRCS; and all Amendments; Keys to Soil Taxonomy, (current issue) USDA, NRCS; National Soil Survey Handbook, title 430-VI,(current issue) USDA, NRCS. The actual composition and interpretive purity of the map unit delineations were based on data collected by scientists during the course of preparing the soil maps. Adherence to National Cooperative Soil Survey standards and procedures is based on peer review, quality control, and quality assurance. Quality control is outlined in the memorandum of understanding for the soil survey area and in documents that reside with the Natural Resources Conservation Service state soil scientist. Four kinds of map units are used in soil surveys: consociations, complexes, associations, and undifferentiated groups. Consociations - Consociations are named for the dominant soil. In a consociation, delineated areas use a single name from the dominant component in the map unit. Dissimilar components are minor in extent. The soil component in a consociation may be identified at any taxonomic level. Soil series is the lowest taxonomic level. A consociation that is named as a miscellaneous area is dominantly that kind of area and minor components do not significantly affect the use of the map unit. The total amount of dissimilar inclusions of other components in a map unit generally does not exceed about 15 percent if limiting and 25 percent if nonlimiting. A single component of a dissimilar limiting inclusion generally does not exceed 10 percent if very contrasting. Complexes and associations - Complexes and associations consist of two or more dissimilar components that occur in a regularly repeating pattern. The total amount of other dissimilar components is minor extent. The following arbitrary rule determines whether complex or association is used in the name. The major components of an association can be separated at the scale of mapping. In either case, because the major components are sufficiently different in morphology or behavior, the map unit cannot be called a consociation. In each delineation of a complex or an association, each major component is normally present though their proportions may vary appreciably from one delineation to another. The total amount of inclusions in a map unit that are dissimilar to any of the major components does not exceed 15 percent if limiting and 25 percent if nonlimiting. A single kind of dissimilar limiting inclusion usually does not exceed 10 percent. Undifferentiated groups - Undifferentiated groups consist of two or more components that are not consistently associated geographically and, therefore, do not always occur together in the same map delineation. These components are included in the same named map unit because their use and management are the same or very similar for common uses. Generally they are grouped together because some common feature, such as steepness, stoniness, or flooding, determines their use and management. If two or more additional map units would serve no useful purpose, they may be included in the same unit. Each delineation has at least one of the major components, and some may have all of them. The same principles regarding the proportion of minor components that apply to consociations also apply to undifferentiated groups. The same principles regarding proportion of inclusion apply to undifferentiated groups as to consociations. Minimum documentation consists of three complete soil profile descriptions that are collected for each soil added to the legend, one additional per 3,000 acres mapped; three 10 observation transects for each map unit, one additional 10 point transect per 3,000 acres. A defined standard or level of confidence in the interpretive purity of the map unit delineations is attained by adjusting the kind and intensity of field investigations. Field investigations and data collection are carried out in sufficient detail to name map units and to identify accurately and consistently areas of about 2.5 acres. compilation base for published soil survey 15840 multiple photographs multiple photographs 1976-01-01 publication date 1978-01-01 tabular data linked to spatial soil data National Soil Information System (NASIS) database for State of Rhode Island: Bristol, Kent, Newport, Providence, and Washington County National Soil Information System (NASIS) database for State of Rhode Island: Bristol, Kent, Newport, Providence, and Washington County 2004-01-01 export certification date 2004-01-01 SSURGO data for revision of spatial and attribute data Soil Survey Geographic (SSURGO) data base for State of Rhode Island: Bristol, Kent, Newport, Providence, and Washington County Soil Survey Geographic (SSURGO) data base for State of Rhode Island: Bristol, Kent, Newport, Providence, and Washington County 2003-01-01 2004 2004-01-01 information for soil map unit delineations, special soil feature locations, and data on soil properties 15840 Soil Survey of State of Rhode Island Soil Survey of State of Rhode Island 1981-01-01 publication date 1989-01-01 used to update soil maps during recompilation to show major land use changes 12000 multiple color infrared high altitude aerial photographs multiple color infrared high altitude aerial photographs 1986-01-01 publication date 1989-01-01 final publication negatives used as the source for soil lines 15840 publication annotated overlay publication annotated overlay 1989 1989-01-01 information for soil map unit delineations, special soil feature locations, and data on soil properties 62500 Soil Survey of Providence County, Rhode Island Soil Survey of Providence County, Rhode Island 1943-01-01 publication date 1989-01-01 1996-01-01 information for soil map unit delineations, special soil feature locations, and data on soil properties 62500 Soil Survey of Newport and Bristol Counties, Rhode Island Soil Survey of Newport and Bristol Counties, Rhode Island 1942-01-01 publication date 1989-01-01 1996-01-01 information for soil map unit delineations, special soil feature locations, and data on soil properties 62500 Soil Survey of Kent and Washington Counties, Rhode Island Soil Survey of Kent and Washington Counties, Rhode Island 1939-01-01 publication date 1989-01-01 2010-12-15 provided hydrography reference during soil map recompilation for double line streams and water areas that serve as soil map unit boundaries and was also the base material for recompilation 15840 annotated overlay annotated overlay 1970-1975, publication dates of USGS topographic quadrangles, from which hydrography overlays were created 1989-01-01 digitizing source 15840 annotated overlays annotated overlays 1995 1989-01-01 1995-01-01 compilation source 15840 multiple orthophotographs multiple orthophotographs publication date 1989-01-01 attribute (tabular) information National Soil Information System (NASIS) data base National Soil Information System (NASIS) data base 2004-01-01 publication date 2004-01-01 2004-01-01 base materials for field mapping and development of hydrographic layer 12000 multiple low altitude monochrome aerial photographs multiple low altitude monochrome aerial photographs 1970-01-01 publication date 1970-01-01 1977-01-01 The State of Rhode Island was previously published as three soil surveys, between 1939 and 1943. All three surveys were at a scale of 1:62500. A revised soil mapping legend was established in the 1950's and mapping was updated during the late 1960's. An evaluation of the updated mapping indicated that the mapping was not adequate for a modern order two soil survey due to significant changes in landuse, soil classification, soil interpretations, and soil mapping standards and procedures. 1968-01-01 Field procedures were used to combine the three previous individual soil survey areas into a single soil survey. Soil map unit boundaries were determined by field observations and by interpretation of remotely sensed data on 1:12000 scale aerial photography. Boundaries were verified at closely spaced intervals with the soils in each delineation (map unit) identified by traversing and transecting the landscape. The soil scientists conducting the survey observed the soils in the field, described and sampled the soils, and analyzed the samples in the laboratory. The taxonomic classification of the soils and resulting map unit names were finalized at the final correlation in October 1977. 1977-01-01 The 1:12000 scale field maps were visually compiled to photographs at 1:15840 scale. The compilation and quality control were performed by Soil Conservation Service staff. 1978-01-01 The recompiled soil lines were digitized, and map units labeled, using ArcInfo software. Six 7.5 minute quadrangles of soil maps were digitized by the University of Rhode Island, Environmental Data Center under a cooperative agreement with the Soil Conservation Service. The portion of the state covering the Scituate Reservoir watershed (approximately 93 square miles) was digitized, under contract, by Environmental Systems Research Institute, Inc. The remainder of the state was digitized by Hammon Jensen, Wallen & Associates using ArcInfo, version 4.0.1. The contracts were prepared and held by the University of Rhode Island, Environmental Data Center, with cooperative review by the SCS. SCS personnel edited the proof plots provided by the contractors. (NOTE: At the completion of this process, the Rhode Island Board of Governors of Higher Education copyrighted the spatial soils data. The USDA SCS subsequently entered into a licensing agreement with the Board which limits the NRCS's distribution of the data to formats other than the ArcInfo export format). 1989-01-01 The Environmental Data Center at the Univeristy of Rhode Island prepared maps (plots) of the digitized USGS topographic quadrangle hydrography. These maps were used as the compilation base. They were used as a base map, to ensure a match to other data layers created by the State of Rhode Island. Soil lines were compiled using the publication annotated overlay. The color infrared aerial photography was used for identifying and compiling changes in urban areas, gravel pits, and water areas that were not indicated on the publication imagery. Soil lines were adjusted to fit water areas. Soil lines were not adjusted to fit single line streams indicated on the compilation base. Supervision of the recompilation was provided by Soil Conservation Service staff. Actual work was performed by contract with the URI-EDC staff and SCS staff. Major funding for recompilation was provided by the Rhode Island Solid Waste Management Corporation. 1989-01-01 Special soil features appearing in the published soil survey were evaluated, amended, compiled, and digitized. Most amendments were made to reduce the number of special soil features where the density of the special features shown in the published survey were not warranted. The special soil features were compiled and digitized, using GRASS software, by NRCS personnel. The NRCS, National Cartography and Geospatial Center, SSURGO Support Section imported both the soils and special soil features data for verification in ARC/INFO 7.0.4. The data were edited. New DLGs reflecting these changes were written with ARC/INFO 7.0.4. 1995-01-01 The Map Unit Interpretations Record data base was prepared by the Natural Resources Conservation Service soil scientists according to national standards. 1996-01-01 The survey-wide coverages from the online SSURGO data were imported to ARC/INFO 7.2 by certification staff at the Virginia Digitizing Unit. Evaluation macros of October 1998 were applied to the data. Map unit labels were compared to the map unit legend from the National Soil Information System data base. ARCEDIT was used to adjust the survey boundary and verify previous adjacent survey joins. The data were forwarded the soil data warehouse. 2004-01-01 The National Soil Information System data base was developed by Natural Resources Conservation Service soil scientists according to national standards. 2004-01-01 The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp. 2004-11-05 The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change. 2004-11-23 The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change. 2006-05-12 The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp. 2006-05-12 The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp. 2006-08-11 The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change. 2006-08-15 The RI600 Spatial data (Special Point Features) was downloaded from the USDA Soil Data Mart on 20081206 and re-projected from NAD 83 UTM Zone 19 to RI State Plane feet NAD 83 using ArcMap 9.2 projection tool. 2008-12-06 (the following was adapted from https://www.nrcs.usda.gov/wps/portal/nrcs/detail/ri/soils/?cid=STELPRDB1242786) The 2014 soils data contains a complete re-digitization and classification of the soils for the entire RI Shoreline as part of the on-going Coastal Zone Soil Survey of RI (this fixes the "spatial shift" so beaches are accurately mapped). Beaches are now mapped and classified based on their dominate surface fragment size: Map unit Ba is dominated by sand and gravel surfaces, Baz is dominated by cobble to stone size surfaces, and Bax is mostly boulder (> 24 inches) size surfaces. Several new coastal ponds and coves in Narragansett Bay are also included (such as Long Pond in Little Compton and Bissell Cove in North Kingstown) and the dunes and marshes along Narragansett Bay have also been re-digitized and classified to the series level. A fourth phase of the coastal zone soil survey is currently on-going and planned for release next year (2015). When the original soils data was digitized in the 1990’s the only available base map for use was USGS Topo Quads, as a result there is a “spatial shift” in the soils data when it is overlaid on modern orthophotography causing the soil map units to not align with the imagery perfectly. An effort has been underway to correct this error, for example Block Island was re-digitized last year to correct the shift (see 2012 update page). This 2013 soils version has re-digitized all of the major rivers and streams so they now match the orthophotography, the associated riparian areas and hydric soils (wetlands) along the flood plains were also adjusted to match the hydrography and elevation contours. In 2011 Rhode Island acquired a 1 meter resolution State-wide LiDAR elevation data set which was used to derive products that are extremely useful for modern day soils mapping. A state-wide set of 2 foot contours, wetness index (maps showing concave slopes where water is moving into), slopes, and curvature maps was produced and used for updating areas where the hydric soil (Rf map unit mainly) boundaries were incorrect due to the spatial shift (this was mainly done for Providence County). The lidar was also used to adjust the organic soils (swamps and bogs) in many areas of the state. 2013-12-01T00:00:00 Jim Turenne U.S. Department of Agriculture, Natural Resources Conservation Service State Soil Scientist 401-828-1300 202-720-2600 401-828-0433 Rhode Island State Office USDA - Natural Resources Conservation Service 60 Quaker Lane, Suite 46 Warwick RI 02886-0111 US jim.turenne@usda.gov Email preferred Data contributed to RIGIS by the USDA NRCS Rhode Island State Office. Metadata were reviewed, minor corrections made to formatting and content, RIGIS distribution information updated. 2021-03-18 Greg Bonynge University of Rhode Island Geospatial Extension Specialist 401-874-2180 1 Greenhouse Road Kingston RI 02881 US greg@edc.uri.edu Email preferred. 0 An online document (PDF) is available with complete explanations of the attribute at (last date accessed: 01 December 2018): https://www.nrcs.usda.gov/wps/PA_NRCSConsumption/download?cid=nrcseprd1367441&ext=pdf A copy of this PDF file also accompanies the version of this dataset available from RIGIS. More suggested resources: Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. Agricultural Handbook 436, 1999, USDA, SCS. Keys to Soil Taxonomy (current issue), USDA, SCS. National Soil Survey Handbook, Title 430-VI, part 647 (current issue), USDA, NRCS. Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS. Additional information: Unit Delineations are closed polygons that may be dominated by a single soil or miscellaneous area component plus allowable similar or dissimilar soils, or they can be geographic mixtures of groups of soils or soils and miscellaneous areas. The map unit symbol (MUSYM AND SOIL_NAME) uniquely identifies each closed map unit delineation. Each symbol corresponds to a map unit name (MUNAME). The map unit key (MUKEY) is used to link to information in the National Soil Information System tables. Map Unit Delineations are described by the National Soil Information System database. This attribute database gives the proportionate extent of the component soils and the properties for each soil. The database contains both estimated and measured data on the physical and chemical soil properties and soil interpretations for engineering, water management, recreation, agronomic, woodland, range, and wildlife uses of the soil. The attribute table contained in this dataset includes the original SSURGO data fields, data from the 1996 RIGIS soils, and new fields listed as 2016 RIGIS source. The National Soil Information System database contains static metadata. It documents the data structure and includes such information as what tables, columns, indexes, and relationships are defined as well as a variety of attributes of each of these database objects. Attributes include table and column descriptions and detailed domain information. The National Soil Information System database also contains a distribution metadata. It records the criteria used for selecting map units and components for inclusion in the set of distributed data. Soil_Special_Line_Features_2022_clipped Feature Class 0 OBJECTID OBJECTID OID 4 10 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. AREASYMBOL AREASYMBOL String 20 0 0 SPATIALVER SPATIALVER Integer 4 10 0 FEATSYM FEATSYM String 3 0 0 FEATKEY FEATKEY String 30 0 0 FEATSYM_1 FEATSYM_1 String 254 0 0 FEAT_NAME FEAT_NAME String 254 0 0 FEAT_DESC FEAT_DESC String 254 0 0 Shape Shape Geometry 8 0 0 Feature geometry. Esri Coordinates defining the features. Shape.STLength() Shape.STLength() Double 0 0 0 dataset EPSG 6.12(9.3.0.0) Simple FALSE 0 TRUE FALSE