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Udorthents Soils

Soil Map Unit Description from the RI Soil Survey Report

UBE—Udorthents, very steep.

This unit consists of well drained to excessively drained soils along mainly the southern edge of Block Island adjacent to Block Island Sound in the Mohegan Bluff area. Wind, waves, and rain have eroded these soils and undercut areas on bluffs. Areas are long and narrow and mostly range from 10 to 200 acres. This unit consists of about 50 percent Udorthents, 20 percent steep, severely eroded areas without vegetation, 15 percent Beaches, and 15 percent other soils.

Included with this unit in mapping are areas, up to 10 acres in size, of excessively drained Gloucester and Hinckley soils and well drained to moderately well drained Bridgehampton soils.

This unit is used for summer recreation activities such as sunbathing, surf fishing, and hiking. The unit is unsuited or poorly suited to most other uses because of slope, position on the landscape, erosion, and exposure to winds and salt spray. Capability subclass and woodland group not assigned.

Soil Map Unit Description from the Soil Survey of Rhode Island

UD—Udorthents-Urban land complex.

This complex consists of moderately well drained to excessively drained soils that have been disturbed by cuffing or filling, and areas that are covered by buildings and pavement. The areas are mostly larger than 5 acres. The complex is about 70 percent Udorthents, 20 percent Urban land, and 10 percent other soils. Most areas of these components are so intermingled that is was not practical to map them separately.

Udorthents are in areas that have been cut to a depth of 2 feet or more or are on areas with more than 2 feet of fill. Udorthents consist primarily of moderately coarse textured soil material and a few small areas of medium textured material.

Included with this complex in mapping are areas, up to 10 acres in size, of undisturbed soils. Also included are a few areas that are entirely Udorthents.

Most cut areas were used as a source of fill material, but in some areas cuts were made in order to level sites for buildings, recreational facilities, and roads. Most of the filled areas were built up and leveled for urban development. In some areas fill has been used to build up recreational areas and highways.

The permeability and stability of this unit are variable. The unit requires onsite investigation and evaluation for most uses. Capability subclass and woodland group not assigned.
 

Soil Map Unit Description from the Soil Survey of Rhode Island

Ur—Urban land.

These areas consist mostly of sites for buildings, paved roads, and parking lots. Most areas are in intensely built-up portions of Providence and New port Counties. The areas are mostly rectangular and range from 5 to 100 acres. Slopes range from 0 to 10 percent but are dominantly 0 to 5 percent.

Included with this unit in mapping are small, intermingled areas of Udorthents; somewhat excessively drained Merrimac soils; well drained Canton, Charlton, and New port soils; and moderately well drained Pittstown, Sudbury, and Sutton soils. Included areas make up about 15 percent of this map unit.

Areas of this unit require onsite investigation and evaluation for most land use decisions. Capability subclass and woodland group not assigned.
 

Soil Map Unit Description from the Soil Survey of Rhode Island

Urs—Urban land, 0 to 3 percent slopes, sand substratum.

These areas consist mostly of sites for buildings, paved roads, and parking lots used for beaches. This unit is mapped along the coastal zone of Washington County. The impervious area of this map unit is underlain by beach and dune sand deposits, dredge sand, and in some areas tidal marsh deposits (peat). Water tables are usually within 1 to 4 feet below the pavement surface, some areas are subject to tidal and coastal storm flooding. 

Included with this unit in mapping are small, intermingled areas of Udorthents; beaches, Fortress, Succotash, and Hooksan soils. Matunuck and Sandyhook soils are on nearby tidal marshes. Included areas make up about 5 percent of this map unit.

Areas of this unit require onsite investigation and evaluation for most land use decisions. Capability subclass and woodland group not assigned.