Work on the Infinity tower project at Dubai Marina is to restart in October, after the site was flooded earlier in the year.

In early February, the diaphragm wall on the site collapsed and water from the marina poured in to the basement.

Remedial works to the 20-metre-deep basement's diaphragm walls have been carried out over the past few months, and the excavation is now ready for any remaining water to be pumped out.

The flooding happened when workers who were preparing pile caps for waterproofing noticed that there were cracks developing in the secant piles that supported the diaphragm wall.

The site was immediately evacuated and the wall collapsed within two minutes. The entire site was flooded within four minutes. None of the 39 workers who were on the site at the time were injured.

The project is one of the most striking at Dubai Marina. The 303-metre, 75-storey twisting tower will rotate through 90 degrees. The structural system for the building will be a cast-in-situ reinforced concrete column superstructure that steps by about one degree at each floor. It will have five basement levels and a total built-up area of 112,000 square metres.

The local Arabtec Con-struction was awarded the AED 700 million ($191 million) contract to build the tower in November 2006.

Bahrain-based Projacs International is the project manager. The US' Skidmore, Owings & Merrill is the architect. Lebanon's Khatib & Alami is the local consultant.

Saudi-based Cayan Investment & Development Company is the client (MEED 24:11:07).