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The Mardi Dam is an off-river storage dam located near the Wyong River.

The upgrade consisted of the construction of a new 22m high intake tower, two pumping stations – one from the dam to the treatment works (TPS) and one from the treatment works into the distribution network (HLPS) and associated pipework’s. Also included are two tunnels, one 144m long with a diameter of 1.8m and the other is 60m long with a 1.5m diameter. There is also over 250m of large diameter pipework and associated valves. These works allow more effective water transfer from Mardi Dam to Mardi water treatment plant. The transfer capacity will increase from the current 100 million litres a day to 160 million litres a day. The project is being funded jointly by Wyong and Gosford councils as part of augmentations to their joint water supply scheme.

Client Gosford City and Wyong Shire Councils
Contract Value $5 Million
Services Low Voltage
Branch Engineering & Infrastructure

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