Subject: Invitation to Early Market Engagement – Upcoming Mogadishu Main Trunk Drainage Construction in Mogadishu City,
Dear Sir/Madam
We are pleased to inform you that the Banadir Regional Administration is preparing a procurement process for the Construction of Citywide Trunk Drainage Lines in Mogadishu, O-16 (Line L2), Package 1, under the SOMALIA INFRASTRUCTURE DEVELOPMENT FOR ACCESS AND JOBS, PHASE 1 PROJECT USING MUTI-PHASE PROGRAMMATIC APPROACH )), financed by the World Bank.
As part of our commitment to transparency, market readiness, and effective competition, we are conducting an Early Market Engagement (EME) exercise to assess contractor interest in the upcoming tender, share preliminary project information, provide an opportunity for contractors to seek clarifications, and gather initial market feedback.
- Purpose of Engagement
The purpose of this Early Market Engagement is to gauge the level of interest, capacity, and readiness of potential contractors to participate in the upcoming procurement for the Mogadishu Main Trunk Drainage Line L2 downstream section, including the restoration, rehabilitation, and reconnection of the existing KM-4 pond to the drainage network.
- The engagement also aims to:
- Provide potential contractors with an overview of the proposed works and expected procurement timeline.
- Share preliminary information on the technical scope, site conditions, and key construction challenges.
- Arrange field visit on identified trunkline and outlet for proposed drainage.
- Receive feedback from the market on contractor capacity, experience, and likely areas requiring clarification.
- Allow interested contractors to raise questions on the scope, technical requirements, construction methodology, and procurement process.
- Improve market awareness and support wider participation in the forthcoming bidding process.
- Scope Overview
The proposed works are expected to include:
Construction of the main trunk line along city roads in Mogadishu is expected to include provisional works (micropiles, sheet piles, CFA piles, and shoring systems), excavation and backfilling, groundwater management, construction of reinforced concrete box culverts and connection wells, hydraulic drainage catchment systems, reconnection of affected utility services, connection of the trunk lines to existing drainage systems, restoration, rehabilitation and reconnection of the existing KM-4 pond to the drainage network, road pavement reinstatement along the trunk lines, and an outlet system discharging to the Indian Ocean.
The Scope of Works requires the Contractor to carry out a topographical survey of Line 2 from chainage 1+424 to 4+211 and a bathymetric survey from chainage 4+211 to 4+294, at minimum, before proceeding with construction of the Line 2 downstream section under this contract. Please refer to topographical survey drawing G-03-Plan O16_1000, sheets 1 to 5. The survey data shall be used to review the trunk drainage box culvert centreline ground-level profile, drainage culvert and manhole invert levels, and depth to the crown of the box culvert. The Engineer shall check the profiles and make adjustments where necessary to ensure connectivity to other drainage networks while minimizing excavation before approving the construction drawings. The objective is to keep the outfall invert level as high as practicable.
The works include approximately 3000m( 3Km) of reinforced concrete box culvert (370 cm wide x 310 cm high x 40 cm wall thickness, and 600 cm wide x 400 cm high x 70 cm wall thickness), restoration, rehabilitation and reconnection of the existing KM-4 pond to the drainage network, approximately 105,000 m of Continuous Flight Auger (CFA) piles (800 mm and 1,000 mm diameter), including secant pile sections with average lengths between 16 m and 24 m, approximately 5,000 m2 of sheet piles with 12 m lengths, approximately 110 m of micropiles with 12 m lengths, and reinstatement of approximately 2,250 m of asphalt concrete roads with widths of about 9-11 m. Please refer to the following table.The outlet is composed of 25 m of box culvert formed from off-site fabricated launching units, with final discharge into a 38 m long x 25 m wide seabed excavation protected with boulders with a mean diameter of 180 cm.
Cost items representing approximately 77% of the total value of the works are presented in the following table:
The outlet is composed of 25 m of box culvert formed from off-site fabricated launching units, with final discharge into a 38 m long x 25 m wide seabed excavation protected with boulders with a mean diameter of 180 cm.
Cost items representing approximately 77% of the total value of the works are presented in the following table:
ATTACHMENTS
