Vibrocoring in Cuskinny Bay, Cork HarbourIn
order to upgrade and improve the electricity transmission system in
the Republic of Ireland, the feasibility of increasing the
transmission capacity across two estuarine/harbour channels is
being investigated.
As part of this investigation in conjunction with EirGrid, Mott
MacDonald has designed and specified hydrological and geophysical
surveys and intrusive ground investigations in order to assess
ground conditions for the installation of high voltage electricity
cables at 1.5 m depth into the clay seabed.
Mott MacDonald carried out tender assessments for the two submarine
cable route surveys ensuring that the most appropriate surveying
techniques, skills and equipment were made available for the
project, assisted in the procurement process and applied for the
relevant governmental permissions and foreshore licences required
for the investigation.
The Mott MacDonald team oversaw the intrusive ground investigation
in Cork Harbour in December 2007 ensuring that the survey was
carried out to the highest standards
Mott MacDonald supervised the laboratory testing of the cores,
specifying appropriate contamination and geotechnical tests
including sediment classification, thermal conductivity testing,
chemical and electrochemical testing.
This is an ongoing project, and the investigation in the Shannon
estuary consisting of geophysical & hydrographic surveys and an
intrusive ground investigation is due to begin early 2008.
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