Raw Water Pipeline Replacement Project for Hauraki District Council
Hauraki District Council (HDC) is seeking proposals from a qualified contractor for an essential raw water pipeline replacement project. HDC has initiated a staged raw water pipeline renewal program to enhance the integrity and efficiency of its water supply infrastructure. The first stage (this Contract) focuses on re…
Source ID: NZ-GETS-29532736
Scope overview
Hauraki District Council (HDC) is seeking proposals from a qualified contractor for an essential raw water pipeline replacement project. HDC has initiated a staged raw water pipeline renewal program to enhance the integrity and efficiency of its water supply infrastructure.
The first stage (this Contract) focuses on replacing approximately 1.5 km of the existing raw asbestos cement (AC) watermain, with subsequent decommissioning of this pipeline section. The renewal commences from the existing raw water pump station, adjacent to the intake screen, and extends northward to the intersection of Rahu Rd and Albert St., Karangahake.
The current pipeline will be replaced with a new 450 OD PE100 SDR13.6 (PN12.5) pipe, except where the pipeline is to be installed by trenchless technology (including directional drilling), in which case, 450 OD PE100 SDR11 (PN16) pipe shall be used.
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