Elmina Benya Lagoon Restoration
Project Immediate and Medium
Term Measures
Due to several causes an increasing
siltation of the Elmina lagoon and its
entrance channel and a shoaling of
the protected area behind the
breakwater have occurred. This
process resulted in very poor
navigational conditions.
To improve
this situation, dredging of the
entrance channel and the lagoon to a
sufficient depth is required. The
existing main breakwater on the
south side of the navigation channel
is severely damaged and needs to
be repaired. For all these works PMI
had to carry out the project
management.
The Works
The action required to improve the
living conditions of the local
inhabitants of Elmina consist in the
restoration of acceptable entrance
conditions for the fishing vessels by
means of:
- Deepening the harbour to a depth
of 2m.
- Deepening the entrance channel.
- Removing existing breakwater
armour blocks at the entrance
channel of the port.
- Repairing the existing breakwater,
by installing a new armour layer.
A permanent survey team was on
site assisting with the required data
and setting out procedures. The
survey procedures included the
following:
- Topographical survey
- Bathymetrical surveys
During the construction phase PMI
was responsible for the general
management of the Elmina Project.
Regular Site meetings, progress
meetings and technical meetings
with the participation of the Client
and the different stakeholders were
held every 2 weeks.
Quality control was one of the main
issues on the Project.
Before rock
boulders could be used for the
breakwater, quarry material samples
were taken and tested to ensure that
the quality of material are compatible
with the required standard
specifications.
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