Hydrography Data - Page 2

Show an excavation drilled or dug into the ground (for example: the sea bed) for the extraction of liquids and/or gases.

Show the location at which a watercourse disappears into the terrain.

Shows an enclosed channel for carrying a watercourse (for example: a stream, a sewer, or a drain) under a route (for example: a road, a railway, or an embankment). Usually the construction of the route is unaffected.

Show a vertically decending part of a watercourse where it falls from a height (for example: over a rock or a precipice).

Show a vertically decending part of a watercourse where it falls from a height (for example: over a rock or a precipice).

Shows a barrier constructed to hold back water and raise its level to form a reservoir or to prevent flooding.

Show a low artificial wall-like structure of durable material extending from the land to seaward for a particular purpose, such as to prevent coast erosion.

Show a long pile (for example: a heavy timber or section of steel, wood, or concrete) forced into the earth that may serve as a support (for example: for a pier) or as a free standing pole within a marine environment.

Show an embankment or wall for protection against waves or tidal action along a shore or water front.

Show a structure primarily used as a berthing place for vessels.