Jetty Non Technical Summary - EDF Hinkley Point

construction and changes in air quality, given the separation distance of the jetty
construction works from the nearest residential properties, the cumulative effect would be
no greater than that assessed solely for the site preparation works.
9.2.2 For landscape and heritage issues, the addition of the land-based components of the
jetty storage infrastructure and the jetty structure itself to the site preparation works has
the potential to cause a cumulative effect. These structures are predicted to marginally
increase the overall magnitude of change with respect to effects on local landscape
character and visual sensitivity from some viewpoints. With respect to the setting of Wick
Barrow, however, the combined impact magnitude is predicted to be no greater than that
assessed for the site preparation works alone.
9.2.3 From a recreation and amenity perspective, the coastal footpath would be obstructed and
alternative routes put in place around the combined works. There would be a temporary
increase in the visual impact to users of the coastal section to the west of the site as a
result of the combined effect. However, views from the footpath would be limited to those
that could be gained away from the immediate vicinity of the development site.
9.3 Cumulative Effects with the Hinkley Point C Project
During Construction of the Jetty
9.3.1 During construction there is only a very limited temporal overlap of approximately nine
months between the jetty development’s construction phase and the Hinkley Point C
construction works. This small overlap between the works effectively limits the potential
for many cumulative impacts to occur. The negligible traffic volume and relevant air
quality and noise effects associated with the jetty development would not be expected to
represent a discernable difference from those associated with Hinkley Point C alone.
9.3.2 For some receptors, such as landscape, heritage and amenity, there is the potential for
the continuation or further modification of an impact due to the commencement of the
Hinkley Point C construction works. However, given the short temporal overlap, the
scope for any significant change is extremely limited and in reality the additional effect
during this overlap period would be unlikely to lead to any greater impacts than those that
could be attributed to the jetty development alone.
9.3.3 For receptors within the footprint of the onshore components of the jetty development,
such as terrestrial ecological interest, soils and landuse, buried archaeology, etc., there
would be no cumulative impact with the commencement of the Hinkley Point C
construction works. This is because these interests would be lost as a result of the jetty
development’s construction and the site preparation works.
During Operation of the Jetty
9.3.4 The overlap in time between the operational phase of the jetty and continued
construction of Hinkley Point C would last approximately 7 years. The potential for
cumulative impacts to arise with the jetty is significant due to the scale and complexity of
the construction work for Hinkley Point C that would be undertaken during this period.
However, these cumulative impacts would be temporary and would cease once the jetty
had been dismantled, meaning that beyond this period the impacts would revert to those
of the Hinkley Point C Project alone.
9.3.5 These impacts would relate to the additive effects of the Hinkley Point C Project with
regard to those environmental aspects that would either be affected outside of the
Hinkley Point C Preliminary Works
Non Technical Summary
Temporary Jetty Development 60 November 2010