The contract, worth $115 million (about €90 million), covers the construction of a main dam made of 600,000 cubic metres of roller-compacted concrete and a secondary dam made of 800,000 cubic metres of backfill. The Wadi Dayqah dams are part of the water supply scheme for the cities of Muscat and Quriyat.

VINCI Construction Grands Projets (leader) will execute the contract in a 50/50 consortium with Consolidated Contractors Company (CCC Oman).

Work will start on 1 August 2006 and is scheduled to take 36 months.

This success is attributable to the experience of CCC Oman and VINCI Construction Grands Projets: CCC Oman recently built four dams in Oman for the government, and VINCI Construction Grands Projets has prestigious contracts such as the Naga Hammadi dam, currently under construction on the Nile, the Yacyreta dams between Argentina and Paraguay, the Xiaolangdi and Ertan dams in China, Pangue dam in Chile, Zimapan dam in Mexico and the Petit Saut dam in French Guiana.