Berm

n. shoulder or edge of a road; edge of a canal; narrow ledge; mound of earth placed at the base of a wall

A berm is a level space, shelf, or raised barrier separating two areas. Berm is a loanword from Dutch.
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Noun
1. a narrow ledge or shelf typically at the top or bottom of a slope
(hypernym) ledge, shelf
2. narrow edge of land (usually unpaved) along the side of a road
(synonym) shoulder
(hypernym) edge, margin
(hyponym) hard shoulder
(part-holonym) road, route

n. bank, shoulder, area bordering a road

(n.)
Alt. of Berme