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772.00018 Seaview WWTP Pump Station and Milliscreen Plant - Structural Improvements


Tender Closed
RFx ID : 20668562
Tender Name : 772.00018 Seaview WWTP Pump Station and Milliscreen Plant - Structural Improvements
Reference # : 772.00018
Open Date : Friday, 1 February 2019 12:30 PM (Pacific/Auckland UTC+13:00)
Close Date : Wednesday, 20 March 2019 12:00 PM (Pacific/Auckland UTC+13:00)
Tender Type : Request for Tenders (RFT)
Tender Coverage : Sole Agency  [?]
Categories :
  • 30100000 - Structural components and basic shapes
  • 30110000 - Concrete and cement and plaster
  • 30131500 - Blocks
  • Wellington
Exemption Reason : None
Required Pre-qualifications : None
Contact : Michael Sawirs
Alternate Physical Delivery Address  :
Alternate Physical Fax Number  :

Wellington water on behalf of Hutt city and Upper Hutt city councils are undertaking seismic improvements on the Seaview WWTP. Ground improvement works and structural augmentations are to be carried out on the existing pumping station building and milliscreen treatment plant building to achieve full IL4 Serviceability Limit State Target. The structural design is a retrofit into the existing WWTP; the works are to be carried out in accordance with all regulatory requirements and as detailed, specified and, designed.

Ground improvements will be made under both buildings. The ground improvement contract has commenced, the contractor is mobilised on site with completion programmed for end of June 2019. The structural contractor will be required to liaise with the ground improvement contractor and the treatment plant operator throughout the duration of the contract works.

Scope of structural works for both buildings include:

- Anchor extension piles with associated pile caps
- Removal of block walls and replacement with reinforced concrete.
- Structural augmentation through the installation of various structural steel members.

Client councils intend to complete the structural works by June 30 2019. Contractor to comment on the feasibility of this deadline.