Where can excess material needed for an embankment be obtained?

An embankment requires sufficient material to achieve the desired elevation and stability, and a borrow site is specifically designated for obtaining this type of material. Borrow sites are areas where soil or other materials are excavated and removed to be used in construction projects, such as for building embankments, roads, or other structures. This site provides the necessary bulk material that is not available on site.

While stockpiles might contain excess material saved from prior work, they do not designate a specific source for obtaining new material needed for an embankment. Similarly, an excavation site pertains to an area where existing materials are being removed, not necessarily a source for additional embankment material. The project site might have some materials, but it may not be sufficient or suitable for the embankment requirements. Therefore, the borrow site is the optimal choice as it is designed to fulfill these material needs efficiently.