Merredin to Baandee pipeline replacement

Opening date: Tuesday 14 October 2025, 2:30pm AWST 
Closing date: Thursday 13 November 2025, 2:30pm AWST 
Bid Invitation Number: 7000014933 

Water Corporation is inviting organisations with suitable experience, capability and capacity to submit a bid to construct, commission, performance test and validate the assets required to replace DN750 mild steel concrete-lined (MSCL) sections of the Goldfield Agricultural Water Supply Scheme (GAWSS). Three sections of pipeline are to be replaced with below ground and above ground Sintakote DN900 & DN1000 welded pipe SSJ-WR, plus associated fittings, valves and pipe supports.  

The appointed Head Contractor is expected to:  

• engage the Water Corporation’s relevant Welding Panel Members to complete the welding component and  
• employ suitably qualified personnel to manage welding and pipe installations on multiple fronts in accordance with Sintakote Steel Pipeline system (Australia Standard AS4041) and Water Corporation Specifications.  

A compulsory site visit will take place at 11:00am AWST on Tuesday 21 October 2025. A 4WD is required for this inspection due to unsealed access tracks.  

If you are not a registered Water Corporation supplier or bidder, please complete the online Supplier Registration form. Please note that this may take up to five working days to process. All bidders must also hold the required HSE Prequalification at Tier 1 before a contract can be awarded. Details are available on the registration page. 
 

Enquiries should be directed to: 

John Luu 
Contracts Specialist 
John.Luu@watercorporation.com.au 
(08) 9420 2548