Barrier

Illustration of Caranx ignobilis (Giant Trevally)

Illustration of a bulkhead

Illustration of coastline base with sand dune system gradient from sea level to berm, frontal dune, and inner barrier system

Illustration of coastline base with sand dune gradient from sea level to berm, frontal dune, outer barrier system, lagoon, and inner barrier system

Illustration of coastline base with sand dune gradient from sea level to berm, frontal dune, outer barrier system, lagoon, and inner barrier system

Illustration of coastline base with barrier island bar

Illustration of a 3D coastline with barrier island and lagoon system

Illustration of coastline 3D base with barrier islands

Illustration of coastline 3D base: river and barrier islands

Illustration of river base comparison

Illustration of a coastline with three rivers and barrier islands

Unicode: 1F6A7

Illustration of estuary base with barrier island

Illustration of estuary base with modified coastline and barrier islands

Illustration of sandy barrier islands

Illustration of lagoon base with barrier sand islands

Illustration of a dam

Illustration of a rounded dam

Illustration of a dam

Illustration of a concrete weir