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Monitoring Update: Installation of Geocontainers for Emergency Protection

| Categories Coastal Protection | Tags #geocontainers #geotubes #coastal protection #abu dhabi #gulf #ecocoast

This week our team inspected a private island site just off the Abu Dhabi coast where we had installed geocontainers for emergency protection in March. The improvement in the area is noticeable, with the geocontainers performing exactly as planned. 

A wider, protected beach has formed since installation

A wider, protected beach has formed since installation

A number of heavy storms this winter resulted in the formation of a breakthrough channel through the dunes on the island, threatening to reduce the island's footprint and fill in a natural lagoon behind it.

Breakthrough channel, before emergency protection works.

Breakthrough channel, before emergency protection works.

Previous attempts by the island to fill this area with sand had not been successful with repeated breakthroughs during the season. Our team installed a series of geocontainers and geotubes to close off this channel.

Geocontainer installation

Geocontainer installation

On completion of the installation, the geocontainers were covered with sand and the area behind them filled in, leaving nature to take its course.

Covering geocontainers to create a wider, more protected beach

Covering geocontainers to create a wider, more protected beach

In the last 3 months there has been a natural build up of almost a meter of sand in front of the containers which has served to widen the beach.  This is exactly what the works were designed to do and we expect the beach to continue to build in front of the geocontainers through summer which will provide added protection to the beach when Shamal season returns.  

The resulting widened beach, with covered geocontainers

The resulting widened beach, with covered geocontainers

There is evidence from sand washed off the top portion of the containers that waves and uprush had reached and been stopped by the containers without a breakthrough that would normally occur. Even during the recent King tides, the wave uprush level has still remained below crest height of the geocontainers. 

Evidence of wave uprush below crest height following recent King tides

Evidence of wave uprush below crest height following recent King tides