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Saudi Arabia’s National Water Company (NWC) has awarded two sewage network contracts worth a combined SR536.3m ($143m) to local contractor Civil Works Company.

The projects will be implemented over 32 months from site handover and will serve northern Jeddah districts.

The first contract, valued at SR278.5m ($74.3m), covers incomplete main lines and secondary sewage networks serving parts of the Al-Bashair, Al-Asala and Al-Falah neighbourhoods.

The scope includes pipelines ranging from 200mm to 800mm in diameter with a total length of about 54.8 kilometres (km).

The package also includes sewage tunnels with diameters ranging from 600mm to 1,800mm and a total length of approximately 6.5km. Works will also serve the Taybah, Abhar Al-Shamaliyah and Al-Hamdaniyah districts.

The second contract is valued at SR257.8m ($68.8m). It covers the implementation of main lines and sub-networks to serve part of the Al-Hamdaniya neighbourhood.

The works include pipelines ranging from 200mm to 1,500mm in diameter with a total length of about 78.5km. The scope also includes horizontal drilling works for sewage tunnels with diameters from 1,200mm to 1,400mm and a total length of approximately 205 metres.