21 Diversey Lane, Wiri, Auckland 2025
09-250 1733 office@kdcivil.co.nz

Stormwater Renewal, Lynbrooke Ave, Blockhouse Bay

A unique and extremely site restricted project, had it’s beginnings in 2016 when a large a land slip occurred and resulted in irreparable damage to the existing stormwater outfall, and exposed high level of risk for further slippage in close proximity to residential properties, and closed off the community beach access footpath.

Project works involved directional drilling approximately 80m of 225PE SDR17 pipe. What was unique about the directional drilling method was the horizontal and vertical bends the pipe was required to be installed on, to avoid protected trees, align within Council Property and ensure the pipe was anchored into firm clay. Pipe bends were less than 100m radius.

Works also included construction of 2 new timber-ground anchored retaining walls 3m tall x 20m long, slip material removal, formation of a new wingwall and riprap outlet, and construction new public reserve footpath. These works took place within a restricted 2m wide access corridor. 

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Completed: Current

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Client: Auckland Council

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Type: Stormwater Renewal

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