Lomé Container Terminal

NIRAS has provided with project planning and design of the container terminal in close cooperation with the employer.

The terminal comprises 1,050m quay length with a draught of 16.6 m, excavation/dredging of 4.5 million m3, reclamation, paving of 55 ha container yard plus terminal building, workshop etc. for a modern terminal.

The services included operational concept, elaboration of the terminal layout, planning of the terminal’s administrative building and workshops, design of drains, power cable routing and other utilities as well as the draft tender design of quay structures and critical installations.

On this basis NIRAS went on to prepare tender documents for an EPC-tender.

For the quay structures two alternative solutions were designed – one was a traditional tied back sheet pile walls and the other a diaphragm wall. Eventually, based on the contractor’s tender proposals, the employer, with advice from NIRAS, selected the diaphragm wall alternative as the preferred solution.

After receipt of contractor's tenders, NIRAS provided services in relation to tender evaluation, negotiations with tenderers and contracting with the selected tenderer.

During the construction phase NIRAS has contributed with:

• Detailed review of the contractor’s design proposals and work procedures

• On site construction supervision

• Review and approval of As-built documentation

• Assessment of non-conformances and commercial claims

• Follow-up regarding non-conformances and outstanding work

Additionally, NIRAS added value to the project through:

• Optimisation of fendering concept

• Sustainable reuse of materials already present on site

• Assessment and management of the settlement risk with innovative geotechnical design and specification of on-site soil treatments;

• On-site inspection and representation of employer to ensure high quality delivery of the works; and

• Conservation of protected marine species of flora including measures for trans-location of mangroves.