The following is a map unit description from the "Soil Survey of Barnstable County, Massachusetts (Fletcher, 1993)"

Ud-Udipsamments, smoothed. These nearly level soils are in areas that have been excavated or filled during construction. They make up about 1.8 percent (4,593 acres) of the survey area. They are mapped throughout the survey area. Areas are commonly rectangular and generally have straight boundaries. They range from 5 to 200 acres in size. Most are about 15 acres.

Most areas are used for roads, highways, schools, housing developments, or athletic fields. Commonly, the more nearly level areas have structures and the more sloping areas are vegetated.

Generally, these soils have a surface layer of yellowish brown, friable loamy sand about 4 inches thick. Below this to a depth of 65 inches or more is light yellowish brown, loose coarse sand.

The characteristics of these soils vary from one area to another. Onsite investigation is needed to determine the suitability for most uses.