Improvement Works at Alajo Drain — Greater Accra Resilient and Integrated Development Project

SPECIFIC PROCUREMENT NOTICE Invitation for Bids (IFB) Project: Greater Accra Resilient and Integrated Development Project Contract title: Improvement Works at Alajo Drain Country: Ghana Credit No.: IDA-64100 RFB No: GH-MWH-219660-CW-RFB Issued on: September 19, 2026 The Government of Ghana has received financing from the World Bank toward the cost of the Greater Accra Resilient and Integrated Development Project and intends to apply part of the proceeds toward payments under the contract for the Improvement Works at Alajo Drain . 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 Ministry of Works, Housing and Water Resources invites sealed bids from eligible contractors for the improvement works at Alajo drain. The works involve two main interventions: The construction of a covered reinforced concrete culvert parallel to the Eastern Railway Line ( Railway drain ), aiming to improve flood management in the Alajo urban area. The new infrastructure consists of a 1,596-meter-long rectangular box culvert with internal dimensions of 5.00m by 2.00m, designed with a constant invert slope of 0.3% to ensure optimal hydraulic performance and prevent water stagnation. The proposed drain alignment passes through densely urbanized areas, cultivated plots, and near existing structures, requiring the relocation or demolition of some buildings, careful excavation work including vertical sheet piling and retaining walls where needed, as well as connections with secondary drainage. Special attention is given to the crossing under the Eastern Railway Line, where the culvert will be placed at a depth of 1.4 meters to prevent interference with the rail infrastructure. The culvert discharges into the Odaw River with an outfall designed at a 45-degree angle to the river flow. Secondary drainage connections are included, with inspection manholes spaced every 50 meters and fitted with sediment traps and grates to manage solid waste. Additional protective works include, especially in proximity to agricultural land. The refurbishment/reconstruction of primary/secondary channels of the Alajo Urban Drainage Network . The Alajo urban area has a surface of around 270 hectares and it is enclosed by the existing railway at the North side, by the Onyasia drain at the East side and by the Nsawam road at the West side. The main Odaw river flows within that area, bounding the Alajo area on the West side. The confluence between the Odaw and Onyasia is located at the southern limit of this area, at Caprice. The existing drains consist of open/covered rectangular concrete sections, varying in size from 0.4m (width) x 0.4m (height) for the smallest drains to 1.5m (width) x 1.5m (height) for the largest ones. The slope of these drains ranges from 0.2% to 1.5%, except in a few cases where the slope approaches zero. The current drainage network is insufficient, as many existing drains are in poor condition or completely absent in some areas. The new designed drain network consists of rectangular cast-in-situ concrete box culverts, with dimensions ranging from 1.0m (width) x 1.0m (height) to 2.0m (width) x 1.5mm (height). Installation of flap gates at each new outlet in the main channels and inspection manholes are included in the scope of work, along with the complete reinstatement of roads affected by construction. The project is scheduled for completion within 18 months and includes site preparation works, excavation, concrete construction, steel fittings, backfilling, and reinstatement of affected road and pedestrian infrastructure. Bidding will be conducted through National Competitive Procurement using Request for Bids (RFB) as specified in the World Bank’s “Procurement Regulations for IPF Borrowers” 7th Edition September, 2025 (Procurement Regulations), and is open to all eligible Bidders as defined in the Procurement Regulations. Interested eligible Bidders may obtain further information from the Ministry of Works, Housing and Water Resources, Mr. Daniel Kusi, email: dkojokusi@gmail.com and inspect the Bidding document during office hours (9:00 Hrs GMT-16:00 Hrs GMT) at the address (2) given below. The Bidding document in English may be purchased by interested eligible Bidders upon the submission of a written application to the address (1) below and upon payment of a nonrefundable fee of GH¢ 2,000.00 (Two Thousand Ghana Cedis) or in a freely convertible currency . The method of payment will be cash. The document will be sent by Courier at an additional cost of GHC 100.00 . Bids must be delivered to the address (3) below on or before 10:00 HRS GMT on November 3, 2026. Electronic Bidding will not be permitted. Late Bids will be rejected. Bids will be publicly opened in the presence of the Bidders’ designated representatives and anyone who chooses to attend at the address (3) below on on November 3, 2026 at 10:00 HRS GMT . All bids must be accompanied by a bid security of GH¢ 2,800,000.00 from a reputable bank. All Bids must be accompanied by a Sexual Exploitation and Abuse (SEA) and/or Sexual Harassment (SH) Declaration. 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 addresses referred to above are: Address (1): Inspection and Purchase: Name of Office : Ministry of Works, Housing and Water Resources Street Address : Ministries, Accra Floor/Room Number : Room G 09, Ground Floor, Procurement Unit City : Accra Region : Greater Accra Country : Ghana Email Address : dkojokusi@gmail.com Attention : Senior Procurement Manager, MWHWR Address (2): For Clarifications: Name of Office : Ministry of Works, Housing and Water Resources Street Address : Ministries, Accra. P.O. Box M43, Accra. Floor/Room Number : 2rd Floor / R.202. City : Accra Region : Greater Accra Country : Ghana Email Address : mctett@gmail.com Cc : tenders@garid-accra.com Attention : The PIU Lead Address (3): For bid submission and opening: Name of Office : Ministry of Works, Housing and Water Resources Street Address : No. 3 Valco Drive, Ministries, Accra Floor/Room Number : 3RD Floor / R.308 Conference Room City : Accra Region : Greater Accra Country : Ghana