A mole is a massive structure, usually of stone, used as a pier, breakwater, or junction between places separated by water. Stone can refer to any of the following: Stone may be used as a building material, as in this dry stone wall The Rolling Stones, the Worlds Greatest Rock and Roll Band. ... A pier in Lillebælt, Denmark A pier was originally a raised walkway over water that is supported by piles or pillars, as opposed to a quay or wharf. ... Breakwater has several meanings, including: a structure for protecting a beach or harbour a 1988 album named Breakwater by Lennie Gallant. ...
A mole is a massive structure, usually of stone, used as a pier, breakwater, or junction between places separated by water.
Historically, the term "mole" was used in the San Francisco Bay Area in California to refer to the combined structure of a causeway and wooden pier or trestle extending out from the eastern shore and utilized by various railroads, such as the Key System, Southern Pacific (two), and Western Pacific.
None of the four moles survives today, although the causeway portions of each were incorporated into the filling in of large tracts of marshland for harbor and industrial development.