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21-17 Mahunga Stream Floodgate Construction

This tender is using the new split file responses feature on GETS. The agency has indicated that they would like to receive responses separated by price and non price components, please keep this mind when preparing your response for submission via GETS.

Details

Tender Closed
RFx ID : 24798327
Tender Name : 21-17 Mahunga Stream Floodgate Construction
Reference # :
Open Date : Monday, 13 September 2021 2:00 PM (Pacific/Auckland UTC+12:00)
Close Date  : Friday, 15 October 2021 5:00 PM (Pacific/Auckland UTC+13:00)
Tender Type : Request for Proposals (RFP)
Tender Coverage : Sole Agency  [?]
Categories :
  • 30000000 - Structures and Building and Construction and Manufacturing Components and Supplies
  • 72000000 - Building and Facility Construction and Maintenance Services
  • 81101500 - Civil engineering
  • 83101500 - Water and sewer utilities
  • 95120000 - Permanent buildings and structures
Regions:
  • Gisborne
Exemption Reason : None
Required Pre-qualifications : None
Contact : Joss Ruifrok
joss@gdc.govt.nz
0274319361
Alternate Physical Delivery Address  :
Alternate Physical Fax Number  :
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.