Public tender

Construction of New Floodgate Structure and Stopbank Upgrades in Mahunga Stream

This project involves the construction of a new floodgate structure in the Mahunga Stream approximately 300m downstream of the existing floodgates at State Highway 2 in Ormond, along with the associated construction of stopbank upgrades to tie into the adjacent stopbank system. The scope of work for this project includ…

Source ID: NZ-GETS-24798327

Estimated value

NZ$1.8 Million

As published by the source; may be updated by the buyer.

Scope overview

This project involves the construction of a new floodgate structure in the Mahunga Stream approximately 300m downstream of the existing floodgates at State Highway 2 in Ormond, along with the associated construction of stopbank upgrades to tie into the adjacent stopbank system.

The scope of work for this project includes sheetpile and cast-in-situ concrete structural construction, general earthworks and grading, installation of structural appurtenances (railings, walkways, etc.) installation of rock rip-rap stream armouring to stabilize the stream/stopbank, and effective management of flows within Mahunga Stream for the duration of construction.

The soil material for this work will be sourced from adjacent Council-owned river berm land located adjacent to the site.

The construction of this new floodgate is part of a 10yr construction programme that started in 2019 to increase the level of flood protection provided by the Waipaoa River Flood Control Scheme (65km of earthen stopbanks) up to a 100 year return period accounting for climate change effects out to the year 2090.

Statusawarded
CategoryConstruction & Infrastructure
CountryNew Zealand
Publish dateSep 13, 2021
Submission deadlineOct 15, 2021
Estimated valueNZ$1.8 Million
Notice typeaward_notice
Sourcenz-gets-awards
BuyerGisborne District Council
City

Buyer & contacts

Contacts available
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Organization
Gisborne District CouncilUnlock export & alerts

Tags & Signals

floodgate constructionstopbank upgradesMahunga Streamflood protectionsheetpile installationconcrete structureearthworksstream armouring
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