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GMR (Great Man-Made River) Water Supply Project

Phase I

Provides two million cubic metres along 1,200km of pipeline from As-Safir and Tazerbo to the Ajdabiya reservoir to Benghazi and Sirte

Phase II

Pumping from the south western aquifer (Fezzan) to Tripoli and Jeffara Plain

Phase III

Expansion of existing Phase I system, additional 1.68 million cubic metres a day (increasing total capacity to 3.68 million cubic metres a day), eight new pumping stations, 700km of new pipeline

Phase III (Continued)

Supply 138,000 cubic metres a day to Tobruk and the coast, new wellfield at Al Jaghboub, reservoir south of Tobruk, 500km of new pipeline

Phase IV

Extension of distribution network, construction of a pipeline linking the Ajdabiya reservoir to Tobruk

Phase V

Connection of the eastern and western systems into a single network in Sirte

Sarir to Sirte

800km

Tazerbo to Benghazi

783km

Average Water Flow Rate

0.95m/s

Transit Time

Around nine days

Murzuk basin raw water soluble salt content

300ppm

Kufra basin raw water soluble salt content

250ppm

Phase I power demand

65MW

Power lines

Sarir wellfield - 66kV transmission line; Tazerbo wellfield - 220kV national power line, transformed down to 66kV at substation

Project initiated

1983

Work commenced

1984

Initial soil resistivity survey

1989

First water received

April 1990

Phase I (Sarir to Benghazi) inaugurated

August 1991

Cathodic protection system implemented

1995

Phase II (Tripoli supply) completed

September 1996

Phase II Jeffara plain

2000

Pumping station contract awarded

October 2001

Pipe production plant O&M contract awarded

2002

Phase III assignment period

January 2002 to June 2005

Pumping station completion (expected)

Summer 2004

Pumping station service and technical support contract initial term

2004-05

Estimated time to final completion

25 years

Phase I

$14 billion

Pipe production plant O&M contract

$350 million

Water pumping station turnkey construction

$82 million

Phase III preliminary engineering / design

$15.5 million

Total cost

$27 billion (2004 estimate)

Owner

Great Man-made River Authority

Funding

Government of Libya

Original project design

Brown & Root / Price Brothers Cy

Main contractor - initial phases

Dong Ah

Sub-contractors

Enka Construction & Industries; Thyssen Krupp Fördertechnik; Al Nahr Co.

Main contractor - phase III

Nippon Koei and Halcrow

Pipe production plant operation and maintenance

SNC-Lavalin

Concrete

Libyan Cement

Pipeline coating

Thane-Coat; Harkmel

Cathodic protection system

Corrintec

Pumping station construction / service and technical support contract

Frankenthal KSB Fluid Systems Consortium
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