Starting From:   2025-06-03 Deadline:   2025-07-03

 International Invitation for Prequalification

Lot 2 – Construction of the Mwache Trunk Main (Section 2), Transmission Pipelines and Storage Reservoirs in West Mainland and Changamwe

1.The Coast Water Works Development Agency (hereinafter referred to as “the Borrower”) has applied for a loan from the European Investment Bank – EIB (hereinafter referred to as “the Bank”) – towards the cost of the Mwache Water Project. This International Invitation for Prequalification relates to the contract for: Lot 2 – Construction of the Mwache Trunk Main (Section 2), Transmission Pipelines and Storage Reservoirs in West Mainland and Changamwe; Contract No. CWWDA/EIB/W/TP/2/2025. 
This contract will include: 

a) Construction of Water Transmission Pipelines, Steel or Ductile Iron Pipelines, sizes ranging from DN 400 to DN 1200, total combined length 27.1 km, comprising of: 

• Single line of the Mwache Twin Trunk Main (Section 1), DN 1000 Pipeline, length 2.9km  
• Mwache Trunk Main (Section 2), DN 1000 Pipeline, length 2.1km  
• Transmission Pipeline from Existing Mazeras Reservoir to the Proposed West Mainland Reservoir, DN 800 Pipeline, length 1.6km 
• Transmission Pipeline from the Proposed West Mainland Reservoir to the West Mainland Supply Area, DN 1200/1000/900/400 Pipeline, total length 11.6km 
• Transmission Pipeline from Offtake at Southern Bypass Interchange to the Changamwe Reservoir Site – DN 700 Pipeline, length 8.9km 

b)  Construction of the following Reinforced Concrete Water Storage Reservoirs: 

• 14,000m3 capacity West Mainland Reservoir and Ancillary Facilities i.e. Staff Houses 
• 14,000m3 capacity Reinforced Concrete Changamwe Reservoir and Ancillary Works including Rehabilitation of Existing 6Nr. Storage Reservoirs (total capacity 30,000m3) and Construction of New Chlorination Facilities 

c) Supply and Installation of Monitoring System (SCADA System) for the above Pipelines and Reservoirs, to be integrated into the Overall Monitoring System including Components constructed under other Projects (Dam, Water Treatment Plant, Lots 1 & 3 Pipelines and Reservoirs). 

This contract is expected to be implemented from July 2026 to July 2029. 

The criteria to be used in the Prequalification are:  
•Eligibility; 
•Historical Contract Non-Performance 
•Financial Situation and Performance 
•Experience 
2.All firms are invited to participate in the Prequalification. 

3.Interested eligible Applicants may obtain further information from and inspect the prequalification documents at the Coast Water Works Development Agency (CWWDA) (address below) during working hours (from 8:00 am to 4:30 pm Kenyan time) from Monday to Friday except during lunch time (12:30pm – 2:00pm), weekends and public holidays. A complete set of the prequalification documents in English language may be purchased by interested Applicants on the submission of a written application at the address below upon payment of a nonrefundable fee of Kshs. 1,000 (Kenya Shillings One Thousand Only). The method of payment will be bankers cheque. The Bidding Documents will be collected from the address below upon production of a purchase receipt or be downloaded free of charge from our website www.cwwda.go.ke and immediately email the firms’ names and contact details to: procurement@cwwda.go.ke for records and communication of any tender clarifications or addenda.    

4.Applications must be delivered in closed envelopes bearing the mention “Application for  Prequalification of Lot 2 – Construction of the Mwache Trunk Main (Section 2), Transmission Pipelines and Storage Reservoirs in West Mainland and Changamwe” not later than 12:00 PM Local Time 3rd July 2025 at the following address: 

The Chief Executive Officer 
Coast Water Works Development Agency (CWWDA) 
Attention: Procurement Manager 
Nkurumah Road, Off Mikindani Street 
P.O. Box 90417 – 80100, Mombasa, Kenya