Cork County Council
Baltimore Pier Road Widening
Outline Construction Method Statement
Date:
24 January 2013
Job No:
C615
Client:
Cork County Council
Cronin Millar Consulting Engineers
Contents
Page No.
1.0
Scope of Works
2
2.0
Brief Description of Works
2
3.0
Method Statement
2
4.0
Programme
2
5.0
Environmental Protection
3
6.0
Potential Impacts and Mitigation Measures
3
Revision Control Table & Document History Record
Rev.
1
Date
12/02/2013
Description & Reason for Issue
Issued for Foreshore
Orig.
CC
Chkd.
SMC
App.
AC
No part of this document may be re-produced or transmitted in any form or stored in any retrieval system
of any nature, without written permission of Cronin Millar Consulting Engineers, as copyright holder,
except as agreed for use on this specific project.
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Cronin Millar Consulting Engineers
1.0 SCOPE OF WORKS
The Baltimore Pier Road is located in Baltimore Harbour, Co. Cork. The public road is primarily
used as a means of access between the village of Baltimore, and the West Pier and adjacent
public car park. Cork County Council intends to widen the road to reduce congestion and
improve access between the village of Baltimore and the West Pier.
2.0 BRIEF DESCRIPTION OF WORKS
The works will consist of the construction of a new reinforced concrete quay wall on excavated
bedrock. Excavated bedrock material and engineered fill will be placed inside the quay wall and
a reinforced concrete deck will be connected to the quay wall. Hot rolled asphalt road surfacing
and concrete footpaths will be placed on top of the reinforced concrete deck at appropriate
locations.
3.0 METHOD STATEMENT
On arrival at site, the contractor will set up suitable security fencing to create a site compound
at the Pier Road. The site compound area will be agreed between the contractor and Cork
County Council. Vehicle access on the Pier Road will be prohibited for the duration of the
works. Pedestrian access will be maintained during the initial excavation phase and
construction of the quay wall and will be limited for a short period during the construction of the
pier deck and road surface. Pedestrian access to the public toilet building from the village will
be maintained for the duration of the works. A site office, canteen, welfare unit and store will be
established within the enclosure.
A long reach excavator will be positioned on the Pier Road and on the foreshore above the low
water mark in order to excavate bed rock and seabed overburden for the foundation of the new
quay wall. The seabed will be excavated to a depth of -3.50m OD Malin. All dredge material
including dredge mud, sand, gravel, rock waste etc. will be reused as fill material behind the
new quay wall, following temporary storage on site. All excavation will take place above the low
water mark. Please refer to the attached Waste Management Plan for further information.
The existing handrail and pier furniture will be removed and recycled at a suitable facility. A
series of steel columns and beams will be erected outside the line of the new quay wall as
temporary works. Precast concrete panels will be fixed to the temporary works structure and a
concrete base will be cast in-situ using a concrete pump to create an “L Shaped” retaining wall.
The quay wall will be backfilled with all of the excavated material and engineered fill. The
material behind the quay wall will be compacted to the appropriate level. Subsequently, service
ducts and watermain ducting will be installed before the deck is steel fixed and the reinforced
concrete deck is poured. The concrete footpaths and deck will be cast concurrently. A section
of reinforced concrete deck will be cast on top of the existing Cattle Slipway to connect the
existing structure to the raised road. Hot rolled asphalt will be laid on the reinforced concrete
pier road deck as a road surface for vehicle traffic. Handrails and ladders will be post fixed to
the pier structure.
Road lining will take place before the road is reopened. The contractor will then remove all
plant and site compound.
4.0 PROGRAMME
To be agreed.
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Cronin Millar Consulting Engineers
5.0 ENVIRONMENTAL PROTECTION
All works will be carried out in accordance with CIRIA “Coastal and Marine Environmental Site
Guide” (C584). Works will also be in accordance with the granted Planning Permission
Conditions and Foreshore Lease/Licence Conditions.
6.0 POTENTIAL IMPACTS AND MITIGATION MEASURES
6.1 Excavation
Noise Generation
Noise will be generated during the excavation of the sea bed. All excavation will be undertaken
above the low water mark.
Water Quality
Sediments will not disperse into the sea during the excavation as all works will be undertaken
above the low water mark. Care will be taken by the excavator operator not to overfill the
bucket causing spills when excavating. Excavated material will not be stored close to the edge
of the quay, thus eliminating sediments washing into the sea.
6.2 Temporary Works
Noise Generation
Noise will be generated during the installation of temporary works. Steel columns will be driven
into the sea bed above the low water mark using a hydraulic piling hammer.
6.3 Construction of Concrete Base and Walls
Noise Generation
Noise will be generated during the construction of the concrete base and walls through
shuttering and concrete pouring. All concrete will be poured above the low water mark.
Water Quality
Concrete and / or cements will not disperse into the sea during the construction of the base and
walls as all works will be undertaken above the low water mark.
6.4 General
Hydrocarbon Spills
In the unlikely event of hydrocarbon spills from plant, spill kits will be used to clean the spill
using best practices. If a spill occurs in the water a containment boom will be deployed around
the perimeter of the spill and synthetic absorbent pads will be placed into the spill on the water.
Used pads and containment boom will be disposed in accordance with the recommendations of
the Environmental Protection Agency.
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