What coastal management strategies have been used at Cronulla?

What coastal management strategies have been used at Cronulla?

The most effective strategy implemented at Cronulla Beach is the fences and boardwalks. Though the revegetation of the dunes and the seawalls are good strategies, the boardwalks and fences seem to work well at keeping the dunes protected at a low cost.

How has erosion affected Cronulla Beach?

Cronulla beach suffered severe erosion when big seas pounded the oceanfront during the extreme weather event on Sunday. A large amount of sand has disappeared from the northern end of the beach, exposing big boulders which have been placed there in the past to counter erosion.

What coastal processes have shaped and transformed Bate Bay?

These processes include wind, waves, currents and sediment movement. The NSW Government’s Coastline Management Manual identifies six coastline hazards relevant to Bate Bay: beach erosion; • shoreline recession; • sand drift; • coastal inundation; • slope and cliff instability; and • stormwater erosion.

Where is Bate Bay?

southern Sydney
Bate Bay is a bay in southern Sydney, Australia. The bay is south of the Kurnell peninsula and its foreshore makes up the beaches of Cronulla. The beaches of Cronulla from north to south are: Wanda Beach, Elouera Beach, North Cronulla Beach, Cronulla Beach, Blackwoods Beach and Shelly Beach.

What is a groyne in beach terms?

A groyne is a shore protection structure built perpendicular to the shoreline of the coast (or river), over the beach and into the shoreface (the area between the nearshore region and the inner continental shelf), to reduce longshore drift and trap sediments.

What are two ways that human intervention has affected Cronulla?

These include:

• Litter being swept into the ocean.
• Recreation.
• Housing/Infrastructure.
• Tourism.
• Sand Mining.

How did the dune system at Cronulla erode?

Dune erosion is an issue in many coastal environments including Cronulla. Previously, concrete sea walls were constructed in Cronulla. They suffered damage during large storms and eventually destroyed.

How long is the Cronulla sea wall?

350 m long
The strong rips continue down the Elouera section of beach (NSW 334c) to the 10 m high Princes St seawall. This 350 m long wall protrudes onto the beach, at times separating it from the southern North Cronulla section. The seawall has degraded the beach amenity and access and adds an additional hazard to the beach.

What are some coastal management strategies?

These strategies include rock groynes and rock walls, dredging, dumping and bulldozing, sand pumping, and the construction of artificial reefs.

What are different types of coastal protection strategies?

Types of Coastal Protection Structures

• Seawalls. This large coastal protection structures can be built using different types of construction materials such as rubble mound, granite masonry, or reinforced concrete.
• Bulkheads. Bulkheads can be constructed by concrete, steel, or timber.
• Groins. Ad.
• Jetties. Ad.
• Breakwaters.