Consultee
Date /Document
Comment
potential impacts of sediment along the foreshore.
SCC
East Anglia THREE Scoping Opinion December 2012
The EIA needs to consider the potential impacts of HDD on the stability of the cliffs at Bawdsey (paragraphs 89/579). It is paramount that any drilling does not destabilise these unconsolidated cliffs and necessitate the need for future coastal protection. To compound this, while the sea off the Bawsdey landfall may appear “relatively sheltered”, this stretch of coastline is in fact one of the fastest eroding in Suffolk and is a predicted area of embayment as a consequence of the sea defences further north. Consequently, it is critical that the impacts on coastal processes of the cabling near the landfall point is understood and that cables do not in the future become exposed and necessitate defending. It is also important that measures to address the risk of tidal inundation during the construction phase need to be considered.
SCC
East Anglia THREE Scoping Opinion December 2012
There is a degree of risk with the use of HDD. The EIA needs to cover the eventuality that HDD fails and alternative approaches, such as open trenching, are needed.
SCC
East Anglia THREE Scoping Opinion December 2012
Preliminary Environmental Information May 2014
The proposals do not conflict with any existing or proposed minerals or waste sites.
East Anglia THREE Offshore Windfarm
HDD at the landfall will be set back an appropriate distance from the cliff edge and will emerge at low water, therefore, the HDD will avoid any direct impacts. Initial geotechnical works have confirmed the suitability of the land behind the cliffs for HDD.
If access to the beach is required this will be via a ramp over the cliff. This is discussed in more detail in section 19.6.1.
Response / where addressed in the PEI
Impact assessment associated coastal processes at the landfall at Bawdsey are discussed in full in Chapter 7 Marine Geology, Oceanography and Physical Processes.
Intrusive ground investigation studies have been undertaken by EAOW in 2013 concluding the HDD is possible at all locations.
Noted
Chapter 19 Soils, Geology and Ground Condition Page 5
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58