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Shuweihat Water Transmission Scheme Contract No. SWTS-TC-011 - Lot "B" Pipeline
To meet the growing water demand in the Emirates, the Water & Electricity Authority of Abu Dhabi has commissioned the construction of Desalination plant in the region of Sila and has awarded the water Transmission Scheme contract, close to a Billion Dirhams, to Marubeni - Taisei Corporation J.V. to transmit the desalinated water by twin 1600mm pipeline to the capital city of Abu Dhabi along with the pumping stations on the line.

Al Nasr Irrigation & Contracting Co. was awarded the subcontract works by Taisei Corporation in LOT B for the construction & testing of 64Km of twin D.I. 1600mm pipelines and 12Km of D.I. 1600mm pipeline complete with the Nondestructive Highways/gas & oil lines’ crossings, chambers and testing with pipes, fittings & valves free issued.

The project details are:
Client: Abu Dhabi Water & Electricity Authority (ADWEA)
Main Contractor: Taisei Corporation
Subcontractor: Al Nasr Irrigation & Cont. Co. (W.L.L)
Contract Duration: 01/01/2003 - 08/11/2004
Scope of works:
a)Pipeline Works for Lot "B"
b)Installation of twin 1600 mm diameter pipelines from chainage 64Km to chainage 128Km and single 1600 mm diameter pipeline to Unit IV in earth bunds, embankments and trenches.
c)Site preparation, trench and pit excavations, bedding and backfilling to pipes, structures and chambers, embankment and bund formation and other similar related earthworks.
d)Connections and disconnections to existing water pipelines.
e)Installation of free issued valves and fittings.
f)Reinforced concrete valve and meter chambers complete with all accessories, access ladders, manhole covers and frames, ventilation pipes, etc.
g)Reinforced concrete inspection chambers for fiber optic cables complete with all accessories, manhole covers etc.
h)Reinforced concrete service culverts under existing roads.
i)Reinforced concrete drainage culverts under pipe bunds.
j)GRP service ducts under pipe bunds.
k)Split ducts to existing services.
l)Protection to existing services under pipe bunds.
m)Reinforced concrete anchor/thrust blocks and line anchors.
n)Reinforced concrete pipeline protection slabs.
o)Thrust boring for road crossings.
p)Thrust boring for gas and oil pipeline crossings.
q)Installation of Fiber Optic cables and associated ducts.
r)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.
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