The Mardi-Mangrove Link pipeline is made up of two pipelines totaling 21 kilometers in length. The pipeline is a key element in the long term plan designed to secure the Central Coast water supply, WaterPlan 2050. The link means that during high river flows, water can be transferred to the large Mangrove Creek catchment instead of allowing it to flow to the ocean.
KILLARDS PORTFOLIO
Mardi Mangrove
Project Introduction
Project Details
Client
John Holland Water
Project dates
March 2010 – September 2011
Discipline
Water supply pipeline
Asset Owner
Gosford City Council & Wyong Shire Council
Location
Central Coast NSW
Scope of Works
The Mardi-Mangrove Link is made up of:
• a 2.1-kilometre buried water pipeline from Wyong River to Mardi Dam
• a 19-kilometre buried pipeline from Mardi Dam to the existing Boomerang Creek Tunnel connected to Mangrove Creek Dam
• a new pump station at Mardi Dam
• a new offtake and pump station beside Wyong River
• an upgrade of the Lower Wyong River weir and fishway
Killard Infrastructure was responsible for installing over 10km of pipeline using a combination of open trenching, horizontal directional drilling and pipe bridging methods (both by John Holland).
Project features
- 13t – 48t Excavators, 50t mobile crane,10t tippers,3t tipper, dump truck, water cart, semi, shoring.
- Mild Steel Cement Lined Pipe: – (d x t x l) 1085mm x 8mm x L13.28m x 10km. Combination of rubber ring joints and welded bends/fittings.
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