Underwater dyke set to save Cua Dai beach from erosion

The central province of Quang Nam has allocated a fund of VND300 billion (US$13 million) to build an underwater dyke system protecting Cua Dai Beach from erosion.

An official from the provincial Department of Agriculture and Rural Development confirmed to Việt Nam News that the project, which will be built between 2020-23, would be a protective solution for the beach after measures put in place over the past decades.

Deputy Director of the department Vo Van Diem said the 1km long underwater dyke system will be built 200m from the beach to retain sand from tides and reinforce the beach.

“It’s a sustainable solution at the moment to save the beach from serious erosion. Concrete dykes could only protect the beach from high waves and tides, but sand at the bottom was washed away with a higher sea level rise and tides,” Diem said.

Underwater dyke set to save Cua Dai beach from erosion
High waves and tides wash away sand, land and part of protective forest on the Cua Dai beach near Hoi An City. A large area of the beach has disappeared over past decades due to serious erosion.

“A 1m high underwater dyke wall would pull back a huge amount of sand to build up a large sandbank on the beach. It’s a measure to protect the beach from erosion.

“Of course, it’s not only one solution, but various measures (dredging of Cua Dai estuary, ban on illegal sand mining activities, forest plantation and overview of upstream hydropower plants) should be planned to stop the beach from disappearing,” he said.

He added the project will be assessed by experts and a technical council as well as seminars on the effectiveness of the system.

He said construction on the system would be commenced in the fourth quarter of this year after earning approval from the technical assessment council.

In 2012, a group of hotels and resorts on Cua Dai beach, in co-operation with partners in the Netherlands, proposed an underwater sea dyke as an emergency measure for the beach. But it failed to raise funds.

 

According to the latest report from Hoi An City, more than 20ha of beach washed away in 2009-14, and the Cua Dai Beach area saw sea encroachment of 50-200m annually.

Nearly VND200 billion ($8 million) was used to build sea dykes or temporary embankments with bamboo and sandbags, as well as the Geotube sandbag to protect the beach, but a section of dyke on Cua Dai Beach was broken by rising sea water and waves in 2017.

Experts said the beach stretched 200m just 10 years ago, but now it has narrowed to 40m due to rapid erosion and climate change. Nearly 70 per cent of protective forest of Cua Dai Beach was washed away by large waves, intense rains and a higher sea level since 2018.

A pristine stretch of sand spanning from An Bang Beach to Cua Dai Beach is a popular spot for foreign tourists in Hoi An.

Underwater dyke set to save Cua Dai beach from erosion
A pristine beach of Cua Dai in Hoi An City is facing serious erosion. It would disappear soon due to climate change and rising sea levels. — VNS Photos Cong Thanh

An expert from Hoi An City blamed the erosion on the construction of resorts on the beach and the lack of proper environmental assessments before dredging the estuary. Construction of hydropower plants on the upstream Thu Bon River and the over-exploitation of sand were believed to have caused the shortage of muddy sand.

Hoi An City has been calling for investment in replanting 140ha of nipa palm (a species of palm native to the coastlines) along the Thu Bon River to reduce sand erosion in Cua Dai Beach.  VNS

Quang Nam seeks to save Cua Dai Beach from erosion

Quang Nam seeks to save Cua Dai Beach from erosion

The appearance of a 15ha sandbank, 1.8km off the Cua Dai Beach since early this year offers a chance to research changing riverhead flows and sand sedimentation at lower lands, according to experts.  

Netherlands supports Vietnam to prevent coastal erosion

Netherlands supports Vietnam to prevent coastal erosion

Dutch experts suggested constructing artificial islands off Hoi An coast in the central province of Quang Nam to shield it from strong waves, helping reduce coastal erosion and creating new tourist attractions in the locality.  

 
 

Other News

.
George Floyd: Amazon bans police use of facial recognition tech
George Floyd: Amazon bans police use of facial recognition tech
SCI-TECH & ENVIRONMENTicon  11/06/2020 

The move comes after IBM ended its facial recognition activities amid concerns over racial bias.

Nearly 1,500 cyber attacks hit Vietnam’s information systems
Nearly 1,500 cyber attacks hit Vietnam’s information systems
SCI-TECH & ENVIRONMENTicon  11/06/2020 

Nearly 1,500 cyber attacks were recorded on information systems in Vietnam in the first five months of 2020, a year-on-year decline of 43.9 percent, according to the Department of Information Security.

HCM City sees big decrease in street flooding
HCM City sees big decrease in street flooding
SCI-TECH & ENVIRONMENTicon  11/06/2020 

The anti-flooding works carried out in HCM City since 2008 have helped reduce the number of streets that are flooded during moderate to heavy rainfall, according to the city Department of Construction.

Amazon removes T-shirt showing George Floyd death
Amazon removes T-shirt showing George Floyd death
SCI-TECH & ENVIRONMENTicon  10/06/2020 

The T-shirt, available on the US store, broke guidelines about depicting a crime scene.

Hope for pangolins as protection boosted in China
Hope for pangolins as protection boosted in China
SCI-TECH & ENVIRONMENTicon  10/06/2020 

China has removed pangolins from its official list of traditional Chinese medicine treatments, reports say.

Broken section of AAE-1 undersea cable fixed
Broken section of AAE-1 undersea cable fixed
SCI-TECH & ENVIRONMENTicon  10/06/2020 

Repairs to the Asia Africa Europe 1 (AAE-1) undersea cable have been completed, domestic internet service providers said on June 8.

Germany helps Vietnam tap into biomass potential
Germany helps Vietnam tap into biomass potential
SCI-TECH & ENVIRONMENTicon  10/06/2020 

A seminar was held in Hanoi on June 9 to launch a German-funded project on climate protection through developing sustainable bioenergy markets (BEM) in Vietnam, 

Hanoi spends VND114 billion on street cleanup
Hanoi spends VND114 billion on street cleanup
SCI-TECH & ENVIRONMENTicon  09/06/2020 

Hanoi authorities have agreed to spend VND114 billion (USD4.95 million) on washing local streets in order to help mitigate air pollution and relieve the scorching heat.

Virtual network developers face big Vietnam task
Virtual network developers face big Vietnam task
SCI-TECH & ENVIRONMENTicon  10/06/2020 

Setting up mobile virtual network operators could be the only chance for newcomers to enter Vietnam’s telecommunications market, but the move could be very risky.

Tesla battery supplier Catl says new design has one million-mile lifespan
Tesla battery supplier Catl says new design has one million-mile lifespan
SCI-TECH & ENVIRONMENTicon  09/06/2020 

Battery-maker Catl says it is ready to make a product that could power a car over 1.2 million miles.

UAE Mars mission: Hope project a 'real step forward for exploration'
UAE Mars mission: Hope project a 'real step forward for exploration'
SCI-TECH & ENVIRONMENTicon  09/06/2020 

The UAE's Hope project is hailed as a "real step forward" for space exploration in the Arab world.

Recruitment demand in IT industry quadruples
Recruitment demand in IT industry quadruples
SCI-TECH & ENVIRONMENTicon  09/06/2020 

The recruitment demand of the IT industry has quadrupled after a decade, according to the report “Information Technology Human Resources of the 2010s and 2020" released by VietnamWorks, 

Youth and Innovation for Ocean initiative launched
Youth and Innovation for Ocean initiative launched
SCI-TECH & ENVIRONMENTicon  09/06/2020 

UNESCO has launched the “Youth and Innovation for Ocean” initiative to promote the role of young people and young scientists in putting forward innovative and practical solutions to reducing, reusing, recycling, 

IT businesses vow to support Hanoi in smart city development
IT businesses vow to support Hanoi in smart city development
SCI-TECH & ENVIRONMENTicon  09/06/2020 

Hanoi aims to become a smart city with Al and Big Data as the core technologies.

Conservationist devoted to protecting primates
Conservationist devoted to protecting primates
SCI-TECH & ENVIRONMENTicon  10/06/2020 

Having initially begun her involvement in wildlife protection as a volunteer with Education for Nature - Vietnam (ENV) in 2007, 34-year-old Le Thi Trang from Da Nang was named among the world’s top ten conservationists, called “Hotspot Heroes”

Man dedicates his life to protecting wild birds
Man dedicates his life to protecting wild birds
SCI-TECH & ENVIRONMENTicon  10/06/2020 

While it is said that “land is as precious as gold”, a 74-year-old farmer has decided to leave 20,000sq.m of land alone to give storks a home to nest and lay eggs.

Time for Vietnamese smartphone brands to conquer home market
Time for Vietnamese smartphone brands to conquer home market
SCI-TECH & ENVIRONMENTicon  11/06/2020 

After a lot of failed efforts, Vietnam’s smartphone products now have a great opportunity to return to the market.

Waste management projects line up to address Vietnam’s white pollution
Waste management projects line up to address Vietnam’s white pollution
SCI-TECH & ENVIRONMENTicon  08/06/2020 

A community-based waste management project aiming to scale up classification and foster green investment was launched on Monday in the northern coastal province of Quang Ninh.

Hanoi ranked world's most polluted city on Sunday
Hanoi ranked world's most polluted city on Sunday
SCI-TECH & ENVIRONMENTicon  08/06/2020 

Hanoi became the world’s most polluted city according to a ranking by IQ AirVisual on Sunday.

Nature-based development is a sustainable pathway for Vietnam
Nature-based development is a sustainable pathway for Vietnam
SCI-TECH & ENVIRONMENTicon  08/06/2020 

As we celebrate World Environment Day, this year’s theme: “Time for Nature,” could not be more vital. It is a reminder for all of us that nature is the essential foundation for life on earth.

 
 
 
Leave your comment on an article

OR QUICK LOGIN