Newlands Cross Upgrade EIS - European Investment Bank

South Dublin County Council N7 Newlands Cross Upgrade
Environmental Impact Statement
Dodder River
Arup Consulting Engineers
There are no significant impacts predicted on the Dodder River arising from the operational
phase of the scheme.
Poddle River
There are no significant impacts predicted on the Poddle River arising from the operational
phase of the scheme.
14.5 Mitigation Measures
14.5.1 Construction Phase
Prior to construction the Contractor will be required to:
• Prepare and Emergency Response Plan detailing the procedures to be undertaken in the
event of a spill of chemical, fuel or other hazardous wastes, a fire, or non-compliance
incident with any permit of license issues.
• Ensure staff are trained in the implementation of the Emergency Response Plan and the
use of any spill control equipment as necessary.
• Prepare method statements for the control, treatment and disposal of potentially
contaminated surface water.
• Obtain all necessary permits and licences for the Work.
• Prepare a site plan showing the location of all surface water drainage lines and proposed
discharge points to surface water. This will also include the location of all existing and
proposed surface water protection measures, including monitoring points, sediment traps,
settling basins, interceptors etc.
In addition, pollution of aquatic systems during the construction phase will be reduced by the
implementation of the following mitigation measures (due cognisance was paid to the Eastern
Regional Fisheries Board guidance document; Requirements for the Protection of Fisheries
Habitat during Construction and Development Works at River Sites 16 and the CIRIA
Guidelines C648 Control of Water Pollution from Linear Construction Projects 17 ):
• Use of settlement ponds, silt traps and bunds and by avoiding constructing within
watercourses where feasible.
• Where pumping of water is to be carried out, filters will be used at intake points and
discharge will be through a sediment trap.
• Appropriate management of excess material stockpiles to prevent siltation of watercourse
systems through runoff during rainstorms will be undertaken. This may involve allowing
the establishment of vegetation on the exposed soil and surrounding stockpiles with cutoff
ditches to contain runoff. Stockpiles will not be sites within 50 m of any watercourse.
• All watercourses that occur in areas of land that will be used for site compound/storage
facilities will be fenced off at a minimum distance of 5 m. In addition, appropriate
measures will be implemented to ensure that silt laden or contaminated surface water
runoff from the compound does not discharge directly to the watercourse.
• Surface water flowing onto the construction area will be minimised through the provision
of berms and diversion channels.
• All chemical and fuel fill points and hoses will be contained within bunded areas.
December 2007 Page 231