More than 45 years of experience

Detailed design, procurement and supervision of sewerage works under AfDB component of the Lusaka Sanitation Programme

Project details
Donor organisation: 
Water & Sanitation
Project volume: 
3,229,400 €
Value of services: 
3,229,400 €
Start of project: 
April, 2017
End of project: 
January, 2023
Project description: 

The Lusaka Sanitation Programme was instituted to provide adequate sanitation facilities to the urban population of Lusaka. Four funding agencies are cooperating to provide the necessary funds to undertake the Lusaka Sanitation Programme (LSP). 

Overall, the programme will have a total budget of EUR 240 million.

This component of the programme is funded by AfDB. The scope of the works covered under this assignment will include the design and construction supervision of extensive sewer network expansions (final design and preparation of bill of quantities for: expansion of 365 km sewer pipes, ranging from DN 150 to DN 1000 in 7 areas of Lusaka and rehabilitation of 70 km sewer pipes, ranging from DN 150 to DN 300; supervision of: 125km of DN 160-500), which have been designed to minimise resettlement requirements, construction of house connections (160 km sewer pipes, DN110), replacement and upgrade of existing trunk sewers (8.5 km of ND 400-1200), the rehabilitation of 1 sewage pumping station, a number of 23 sewage pumping stations (3 will be constructed under the supervision), wastewater treatment upgrades and faecal sludge management facilities (located at two sites).

The project will provide sanitation improvements in the areas Matero, parts of industrial area and Kaunda Square of Lusaka and approx. 88,500 residents will benefit from the AfDB financed part of the Lusaka Sanitation Programme. The design was done for the areas George, Matero, Industrial, Sikanze, Chamba Valley, Kamanga and Kaunda Square. The reduced quantity in supervision in comparison to the design is due to limited available funds.

Service description: 

The assignment of the Consultants covers the following tasks:

Detailed design: Develop planning base, review of past studies, field investigations, updating of maps and drawings of existing facilities, assessment of existing infrastructure, define planning and design criteria, define final scope of works, Inception Report/Scope of Works Report, detailed design activities, terrestrial survey, geo-technical and soil investigations, preparation of site plans and layouts, interpretation of flow measurement, demand scenarios, hydraulic model, technical design calculations and drawings, technical specifications, BoQ, confidential cost estimates, implementation schedule, draft/ final Detailed Design Report, draft/ final Tender Documents, Project Management Manual, Quality Assurance Manual), preparation of ESIA and ESMP for all project components (under a separate contract agreement).

Tendering period: Invitation to bidders, assist during tender period, tender evaluation, assistance during contract negotiations and contract award

Construction supervision: Pre-construction activities, contractor's submission and approval, contractor's commencement, general supervision of works, day-to-day supervision of works, record keeping and reporting, monitoring and control of contractors ESHS activities, meeting and liaison with stakeholders, progress monitoring (monthly and quarterly), measurement of works, interim payments, checking and ensuring quality of works, procedures for non-conformance, advising on design changes and variations to contractor, managing claims and assisting in dispute resolution, additional costs, Environmental Management Plan, as-built drawings, O&M Manuals and Training, monitoring and verify all tests on completion and taking over, Draft Construction Completion Report

Defects notification period: Issue performance certificate, review of snags (part-time assignment), inspection of works (part-time assignment), Final Payment Certificate, Final Construction Report, project close-out


The objectives of the LSP are to increase access to sustainable sanitation services to Lusaka’s residents, especially the urban poor and to strengthen LWSC’s capacity to manage sanitation services.