SHUWEIHAT WATER TRANSMISSION SCHEME –CONT. NO. SWTS-TC-011 – LOT “B”

Shuweihat Water Transmission Scheme

Client: Abu Dhabi Water & Electricity Authority (ADWEA)

Main Contractor: Taisei Corporation

Subcontractor: Al Nasr Contracting. Co. L.L.C

Consultant: Tebodin Middle East Limited

Contract Duration: 01.01.2003 – 08.11.2004

SCOPE OF WORKS:

The subcontract scope of works comprises the installation of double 1600 mm diameter pipelines from chainage 64 to chainage 128 and single 1600 mm diameter pipeline to Unit IV in earth bunds, embankments and trenches.

Site preparation, trench and pit excavations, bedding and backfilling to pipes, structures and chambers, embankment and bund formation and other similar related earthworks will be performed by others.
The subcontract scope of work includes:

• Installing 1600 mm diameter pipes.
• Connections and disconnections to existing water pipelines.
• Installation of valves and fittings.
• Reinforced concrete valve and meter chambers, complete with all accessories, access ladders, manhole covers and frames, ventilation pipes, etc.
• Reinforced concrete inspection chambers for fibre optic cables complete with all accessories, manhole covers etc.
• Reinforced concrete service culverts under existing roads.
• Reinforced concrete drainage culverts under pipe bunds.
• GRP service ducts under pipe bunds.
• Split ducts to existing services.
• Protection to existing services under pipe bunds.
• Reinforced concrete anchor/ thrust blocks and line anchors.
• Reinforced concrete pipeline protection slabs.
• Thrust boring for road crossings.
• Thrust boring for gas and oil pipeline crossings.
• Installation of Fibre Optic cables and associated ducts.
• Installation of electrical and control systems including electromagnetic flow meters, pressure transmitters, actuators and associated distribution boards and control cabinets etc.
• Commissioning and assisting with test run of the systems as may be required.