In 2009 it was necessary to install a new 90mm high voltage cable. The cable run was from the dome to the area opposite Flying Fish. Works involved cutting the tarmac and excavating a trench 750mm deep. Various manholes were constructed using precast manhole rings. The cable was then laid in the trench and covered in sand followed by concrete cable markers. The trench was then backfilled and compacted followed by warning tape. The tarmac was then re-instated to match the existing and connections were made by others.