Construction of 60,000m3 raw water storage for the Angola WTP.
About This Opportunity
Invitation for Bids | Project: Sierra Leone Water Security and WASH Access Improvement Project | Method: Request for Bids | Ref: SL-MWRS-541184-CW-RFB
This is a works contract in the infrastructure, education and training and water and sanitation sectors. Located in Sierra Leone, Africa, this opportunity is open to firms and consortiums. Proposals must be submitted before September 15, 2026.
Published through WB - World Bank, a multilateral development bank that follows standardized international procurement guidelines. Projects funded by multilateral institutions are generally open to international bidders from eligible member countries for civil works in the infrastructure sector. Works contracts of this nature generally require demonstrated experience in similar infrastructure projects, adequate equipment and technical personnel, and financial capacity including bank guarantees. Interested parties should review the full documentation on the original source before submitting their proposal.
Description
Specific Procurement Notice
Request for Bids
Small Works
(Two-Envelope Bidding Process)
Employer: Guma Valley Water Company
Project: Sierra Leone Water Security and WASH Access Improvement Project
Contract title: Construction of 60,000m3 Raw Water Storage for Angola Water Treatment Plant
Country: Sierra Leone
Grant No.: P507588
RFB No: SL-MWRS-541184-CW-RFB
Issued on: 4th August 2026
- The Guma Valley Water Company has received financing from the World Bank toward the cost of the SIERRA LEONE WATER SECURITY AND WASH ACCESS IMPROVEMENT and intends to apply part of the proceeds toward payments under the contract for Construction of 60,000m3 Raw Water Storage for Angola Treatment Plant. For this contract, the Borrower shall process the payments using the Direct Payment disbursement method, as defined in the World Bank’s Disbursement Guidelines for Investment Project Financing
- The Guma Valley Water Company now invites sealed Bids from eligible Bidders for the construction of 60,000m3 Raw Water Storage for the Angola Treatment Plant situated in the Angola Community along the Freetown Peninsular Highway. The work includes major earthworks, geomembrane installation, and structural, concrete and pipework. The construction period for this work is 18 months.
- Bidding will be conducted through international competitive procurement using a Request for Bids (RFB) as specified in the World Bank’s http://www.worldbank.org/html/opr/procure/guidelin.html Procurement Regulations for IPF Borrowers of September 2025. (“Procurement Regulations”), and is open to all eligible Bidders as defined in the Procurement Regulations.
- Bids will be evaluated in accordance with the evaluation process set out in the bidding documents. The following weightings shall apply for Rated Criteria (including technical and non-price factors): 60% allocated to Technical Weight and 40% to Financial Weight.
- Interested eligible Bidders may obtain further information from the Guma Valley Water Company, 12/14 Lamina Sankoh Street, Freetown, Sierra Leone; Focal Person (Sierra Leone Water Security and WASH Access Improvement Project), email: bernadettekargbo222@gmail.com; gumaprocurement@yahoo.com, kawenikargbo7@gmail.com and inspect the bidding document during office hours from 09:00 to 16:00 hours at the address given below.
- The bidding document in English may be purchased by interested, eligible Bidders upon the submission of a written application to the address below and upon payment of a nonrefundable fee of NLe2,500 (Two Thousand, Five Hundred Leones) or USD100 (One Hundred United States Dollars). Payment shall be made in person to the Cashier at GVWC Headquarters, Lamina Sankoh Street. A receipt will be issued upon payment for the bidding document, after which the document will be delivered to the bidder by email and hard copy. The bidder is required to formally acknowledge receipt of the bidding document, either by email or signed hard copy, to ensure the transaction is properly tracked and documented in the project records.
- Bids must be submitted in hardcopy/paper form only to the address below, 7th Floor, Guma Building, Guma Valley Water Company, Lamina Sankoh Street, Freetown, Sierra Leone, on or before 15th September 2026, at 12:00 GMT. Electronic Bidding will not be permitted. Late Bids will be rejected. The outer Bid envelopes marked “ORIGINAL BID”, and the inner envelopes marked “TECHNICAL PART” will be publicly opened in the presence of the Bidders’ designated representatives and anyone who chooses to attend, at the address below Guma Building, Guma Valley Water Company, Lamina Sankoh Street, Freetown, Sierra Leone on 4th Floor, 12.00GMT on 15th September 2026. All envelopes marked “SECOND ENVELOPE: FINANCIAL PART” shall remain unopened and will be held in safe custody of the Purchaser until the second public opening.
- All Bids must be accompanied by a “Bid Security” of One Hundred Thousand United States Dollars (USD 100,000) or Two Million, Two Hundred and Seventy-Two Thousand Leones (NLe 2,272,000).
- Attention is drawn to the Procurement Regulations requiring the Borrower to disclose information on the successful bidder’s beneficial ownership, as part of the Contract Award Notice, using the Beneficial Ownership Disclosure Form as included in the bidding document.
- The address (es) referred to above is:
The Managing Director
Sierra Leone Water Security and WASH Access Improvement Project
Guma Valley Water Company
12/14 Lamina Sankoh Street, Freetown, Sierra Leone
Telephone: +232 76 005805
Email: bernadettekargbo222@gmail.com
Data provenance
This notice is sourced from WB - World Bank and was originally published on August 17, 2026. Last refreshed today. Reference: OP00460311. BidsFactory mirrors official procurement notices and links back to the source for full legal text.
About Sierra Leone Water Security and WASH Access Improvement Project
Sierra Leone Water Security and WASH Access Improvement Project has issued 16 procurement notices on BidsFactory, including 2 currently open and 8 awarded contracts. Activity concentrates in Water & Sanitation, Infrastructure, and Education & Training. All notices are published for Sierra Leone. Notices are distributed via WB - World Bank. Most recent publication: September 1, 2026.
Frequently asked questions about this tender
Who is the contracting authority?
This notice was issued by Sierra Leone Water Security and WASH Access Improvement Project in Sierra Leone. The authority is responsible for evaluating bids, awarding the contract, and managing performance.
What type of contract is this?
This is a Works contract in the Infrastructure sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.
Where will the contract be performed?
The contract is for delivery in Sierra Leone. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.
How can I submit a bid?
Visit WB - World Bank to access the full notice, required documents, and submission instructions. Quote reference OP00460311 when communicating with the contracting authority.
When does this tender close?
The submission deadline is September 15, 2026. You have 4 days left to prepare and submit your proposal to the contracting authority.
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