- Gold Coast Seaway
- Gold Coast, Queensland
- Gold Coast Shoreline Management Plan
- Gold Coast Broadwater
- Gold Coast
- List of mid-air collisions
- Surfers Paradise, Queensland
- Main Beach, Queensland
- 2023 Gold Coast mid-air collision
- Southport Spit
- Gold Coast Seaway - Wikipedia
- History of the Gold Coast Seaway
- Sand Bypass System - Gold Coast Waterways Authority
- Gold Coast Seaway diving and snorkelling: a fantastic spot ...
- Gold Coast Seaway dive site - PADI
- Gold Coast, Queensland - Wikipedia
- Sand Bypass System - Gold Coast Waterways Authority
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The Gold Coast Seaway or Southport Seaway is the main navigation entrance from the Pacific Ocean into the Gold Coast Broadwater and southern Moreton Bay and is one of Australia's most significant coastal engineering projects. It is located at the northern end of the Southport Spit where the Nerang River enters the Pacific Ocean.
The channel was constructed between 1984 and 1986, primarily to facilitate the safe passage of sea-faring vessels. The passage was previously known as the Southport Bar. The mouth of the Nerang River was once located further south in Broadbeach. The main driving force for this movement is the northward drift of sand along the coast.
Before the bypass system was implemented the mouth of the Nerang River moved northwards at a rate of 60 metres per year. This northward drift was responsible for the unstable and shifting conditions of the bar, which made crossing it hazardous for small boats. The southern training wall of the Gold Coast Seaway is the northern end of the Gold Coast Oceanway.
The seaway is issued regular weather forecasts by the Bureau of Meteorology.
Design
Two rock walls to stabilise the position of the entrance were constructed. One million tonnes of imported rock was used. To reduce the entry of ocean swells the breakwater walls were aligned 15 degrees north of east and increasing the length of the southern wall. Models indicated that the western shores of the Broadwater would need further protection from waves. Wave Break Island was constructed from dredged material to act as a barrier.
The channel is 250 metres wide. The mean depth is 11 m and it has a maximum depth of 20 m. During outgoing tides, excess treated wastewater from four sewage treatment plants is released into the channel.
Gold Coast Sand Bypass System
Research conducted by the government indicated the quantity of sand movement necessitated a solution that operated perpetually. Gold Coast Seaway is home to the world's first permanent sand bypassing system, which currently delivers all sand that arrives at the Gold Coast Seaway across the entrance and into the Moreton Bay Marine Park. Up to 500 cubic metres of sand can be moved per hour. The Gold Coast Shoreline Management Plan is reviewing this practice and examining the concept of Island welding to determine if 85% of the sand (80,000 cubic metres per year) can be sustainably recycled to Surfers Paradise.
The bypass system uses ten pumps located along the jetty. These are two metres beneath the sand. The pumps collect 500,000 cubic metres of sand over the course of a year. The sand, which is naturally moving northwards is pumped via a tunnel under the seaway to South Stradbroke Island, thereby making dredging unnecessary. It is managed by the Gold Coast Waterways Authority.
Diving
Gold Coast Seaway is a popular diving and fishing location. Many surfers and body boarders regularly paddle across the seaway on their boards from the mainland to South Stradbroke Island. Popular surfing sites include the sand pumping jetty on the mainland and the sand pumping outlets on South Stradbroke Island.
In 2014, scientists from NatureServe in the US traveled to Australia to find a pipefish species first photographed by a diver in the seaway in November 2009.
See also
Southport Spit
References
External links
Seaway Surf Cameras
Moreton Bay Marine Park
Kata Kunci Pencarian:
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Gold Coast Seaway Stock Photo - Alamy
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Gold Coast Seaway dive site | PADI
Gold Coast Seaway dive site | PADI
Gold Coast Seaway dive site | PADI
gold coast seaway
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Gold Coast Seaway - Wikipedia
The Gold Coast Seaway or Southport Seaway is the main navigation entrance from the Pacific Ocean into the Gold Coast Broadwater and southern Moreton Bay and is one of Australia's most significant coastal engineering projects.
History of the Gold Coast Seaway
Apr 22, 2017 · The sand bypassing system, ongoing dredging and construction of Wave Break Island have ensured that the entrance to the Broadwater was stabilised without detriment to surrounding beaches. The Gold Coast Seaway is an unqualified success proving that although nature can’t be tamed, she can be guided.
Sand Bypass System - Gold Coast Waterways Authority
The Gold Coast Seaway facilitates safe transit between the Broadwater and the ocean for recreational and commercial vessels. An improvement in water quality due to increased tidal exchange has enhanced biodiversity in the Broadwater.
Gold Coast Seaway diving and snorkelling: a fantastic spot ...
Aug 27, 2018 · Interested in a cheap and fun snorkelling or scuba diving experience near the city? Learn more about the Gold Coast Seaway, the best shore dive in Queensland!
Gold Coast Seaway dive site - PADI
With over 400 different species found in the Seaway, the Seaway dive site is one of the most popular shore dives in South East Queensland as it offers a wonderful habitat for these creatures! The Seaway is the main navigation entrance from the …
Gold Coast, Queensland - Wikipedia
The Gold Coast Seaway, between The Spit and South Stradbroke Island, allows vessels direct access to the Pacific Ocean from The Broadwater and many of the city's canal estates. Breakwaters on either side of the Seaway prevent longshore drift and the bar from silting up.
Sand Bypass System - Gold Coast Waterways Authority
Completed in 1986, the Gold Coast Sand Bypass System was the first of its kind in the world. It plays a critical part in keeping the entrance to the Gold Coast Seaway safe and navigable. The system pumps 500,000 cubic metres of sand northwards every year to ensure the Seaway entrance remains clear. The Gold Coast’s multi-billion-dollar tourism,