As works to repair high voltage cable are carried out at Gillette Corner
Works to repair a high voltage electricity cable are currently underway on the inside lane of the eastbound carriageway of the A4 at the Gillette Corner junction.
The works are being undertaken by Balfour Beatty on behalf of Scottish and Southern Electricity and are being supervised by Transport for London. This 66Kv electricity cable is one of a group of four such cables that run along this section of the A4. Failure of one more of these high voltage supply cables would result in the loss of supplies to many thousands of properties.
Original plans to drill across and under the Syon Lane junction and the pedestrian subway have had to be abandoned because of the presence of other very deep services and the only alternative is to excavate across the mouth of Syon Lane to lay the new cable. Works are currently progressing each side of Syon Lane but the main work at the junction has been delayed until the forthcoming Easter weekend to avoid the normal busy workday traffic.
Works across the junction will commence on the evening of Thursday 9th April and the contractor will be working continuously throughout extended weekend to enable the works to be complete by Tuesday morning.
The current Thames Water replacement mains operation on Brentford High Street by Tallow Road will be finishing this Thursday and recommencing after Easter.
During the works, the most severe impact will be on the southbound Syon Lane approach to the junction which, at times, will be reduced from its current three lanes to one lane in width and extensive congestion is likely on this approach. The will be other restrictions affecting the northbound Syon Lane approach to the junction from the railway bridge and for one period of the works, the left turn into Syon Lane by the petrol filling station will need to be banned and a diversion route established.
Barring any major unforeseen problems, the works across the junction will be complete before the Tuesday morning rush hour.
April 8, 2009
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