Soil Map Unit Description from the RI Soil Survey Report (2010 Update)
ShA - Succotash sand, 0 to 3 percent slopes (2010 Update
for the RI Coastal Zone Soil Survey Phase I - please download the latest copy of
the spatial data).
These nearly level to gently sloping, areas are mapped along the
Coastal Zone along Washington County from Point Judith to Westerly. Succotash
soils are moderately well drained soils formed in eolian and/or washover sands
derived from marine material. They are on back-barriers, low-lying coastal
areas, and adjacent to marshes and subaqueous soils.
Succotash soils are typically vegetated with beachgrass, reeds
(Phargmites), sedges, and saplings. Some areas are used for recreational
purposes, development, and wildlife habitat.
Included with this unit in mapping are small areas of Hooksan
soils on higher elevations; Fortress soils on nearby anthropogenic landforms,
and Sandyhook and Matunuck soils on tidal marshes. Also included are
areas of buried tidal marshes below 40 inches. Included areas make up about 5
percent of this map unit.
These areas are subject to over-wash deposition and erosion
during storm surge events and are generally unsuited to most development uses.
Check back for more information.
Official Series Description:
UPDATE: The Coastal Zone of Rhode Island is currently being updated
and re-mapped, for more information on this update visit: