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Inishbofin Coastal Protection Works

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INISHBOFIN COASTAL
PROTECTION WORKS &
PIER IMPROVEMENT
WORKS,

Inishbofin, Co. Galway.

 This project consists of the construction of a 300m long retaining
wall in precast and in-situ concrete, the dredging of
approximately 30,000m3 of salt, sand and gravel which will be
placed behind the concrete retaining wall and the formation of a
slope between the top of the wall and the top of the existing
cliffs. The work is topped off with a precast revetment surface,
and improvement works was carried out to the existing quay,
including provision of a new slipway.

Because of the location of the project on an offshore island,
significant logistical obstacles must be overcome, including
extensive off site precasting, on site concrete production, and
restricted plant availability. The dredge element is heavily
restricted by environmental considerations, which impose severe
limitations on the methodology to bring the dredged material
ashore.

To execute this piece of the work L&M Keating Ltd acquired a
unique piece of dredge plant from the USA, (a Versi Dredge
7012), and it is intended that the dredge material will be pumped
ashore from the floating plant.

The existing ‘new’ pier is also presently being refurbished. Works
involved include installation of a sheet-piled wall around the
existing pier which will be tied into the existing structure. This
will then be infilled with dredged material and a new concrete
deck and steps constructed.
Client Galway County Council.
Consulting Engineers RPS Consulting Engineers,
Elmwood House,
74 Boucher Road,
Belfast, BT12 6RZ.
Value €5.6m
Programme 21 months
Date of Completion July, 2008.
L&M Keating Ltd, Kilmihil, Co. Clare. www.lmkeating.ie | info@lmkeating.ie
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