Project Details
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Location: Waikanae
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Year of completion: 2023
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Services: Earthworks, Roading, Three Waters, Underground Utilities, Survey
Bringing together the very best of nature and community
Works included a 1600dia and 450dia culvert and walking tracks along a diverted stream with riparian planting. Due to the extent of bulk earthworks a sediment retention pond was constructed as part of our erosion and sediment controls. A low pressure sewer was a key feature of this stage, which meant a faster programme was achievable through placing the pipe in a common services trench.
Key project takeaways –
“Install of the two culverts required a stream diversion, de-fishing by an ecological expert, soft ground remediation and a significant amount of earthworks and rip rap to prevent against scouring. The culverts were sized based on external stormwater modelling that takes into account the increasing number of rain events.”
Marcus, Head Drainlayer