Stones, chunks of concrete, or other debris on an embankment slope, or stream side slope, generally used to prevent erosion.
Broken rock, deposited loosely on a riverbed or on the banks to help prevent erosion. It is also used to form breakwaters and embankments.
A loose foundation or an arrangement of broken stone in water or soft terrain used to help prevent erosion. The material used for this is known as rap or rapping.
Broken rock used for the protection of embankments, cut slopes, etc. against agents of erosion.
An assemblage of stones along the banks of a river or stream used to straighten or contain the flow of water.
loose broken stones, used to form a foundation on soft ground or underwater, or in the construction of revetments and embankments
Rip-rap is a popular name given to a retaining wall composed of large loose stones and set at the base of a sand dune or bluff. Usually, no mortar is used in the construction. The purpose is to prevent erosion of the toe of the dune, thus preventing a collapse of the upper part of the dune to protect the house built there. There is controversy over rip-rap, particularly about the effect on neighboring properties. The Parks Department is often the issuing authority.
Large stones which are arranged over loose soil to protect it from erosion.
Rip-rap - A foundation or sustaining wall of stones thrown together without order, as in deep water, on a soft bottom, or on an embankment slope to prevent erosion.
A combination of large stone, cobbles and boulders used to line channels, stabilize banks, reduce runoff velocities or filter out sediment.
large boulders or rocks placed along a stream bank to prevent erosion.
A layer of medium to large rocks that is used to stabilize banks along ponds, lakes, rivers, and reservoirs.
a foundation or wall made of broken rock or logs
Heavy stone used on banks and soil to avoid erosion.
