 3 tonne dumper.


295. For the transition pits (both Scenarios) the following plant would be required:  Telehandler;  30 tonne excavator;  Loader;  Tractor; and  Trailer.


296. For the short HDD (both Scenarios) the following plant would be required:  30 tonne excavator; and  9 tonne dumper.


5.5.2.4 Lighting 297. Under Scenario 1 it has been assumed that the works at the landfall would not require 24 hour lighting . For Scenario 2 it has been assumed that 24 hour lighting would be required during HDD operations.


5.5.2.5 Workforce 298. The total number of construction employees required has been estimated at approximately 9 at the landfall. This figure is based on manpower figures from previous projects, and an assumption of 9 workers per drilling rig.


5.5.2.6 Programme 299. Construction at the landfall would be up to 10 weeks under either Scenario.


5.5.2.7 Reinstatement 300. The construction compound would be reinstated to its former condition. If necessary, the subsoil would be ripped prior to topsoil placement if compaction has occurred. Topsoil would be spread in such a way as to ensure that it does not become compacted.


5.5.3 Operation and Maintenance 301. Routine maintenance is anticipated to consist of one annual visit to each transition pit to carry out integrity testing, which would be accessed by digging down to man- hole covers, and possible non-intrusive checking of the cable with, for instance, ground penetrating radar.


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 5 Description of the Development Page 66


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