A4 westbound lane closures extended as bridge condition “worse than anticipated”

Image above: Traffic on the A4

Lane restrictions in place until at least 6 November

Transport for London has announced an extension to the A4’s westbound lane closures in Chiswick, after discovering the condition of the Cromwell Road Rail Bridge, the part of the A4 on the approach to Chiswick roundabout where it crosses over the railway line, is “worse than anticipated”.

The bridge has had no major refurbishment since it was built over 80 years ago, and it has gradually deteriorated over time. TfL says the works will ensure the bridge is safe for years to come and will avoid the need for more disruptive and expensive repairs at a later date.

Originally scheduled to be back to three lane operation on Sunday 23 October, the A4’s lane restrictions will now remain in place until at least Sunday 6 November.

There will now be a full closure of the A4 westbound between Chiswick Roundabout and Hogarth Roundabout on Saturday 5 November from 10.00pm to 5.00am and a full closure the following night eastbound 10.00pm to 5.00am. A planned closure of the eastbound road from junction 3 of the M4 to Chiswick Roundabout overnight on Sunday 23 October is no longer taking place.

Work on the road was suspended for a few days to clear the road for the Queen’s funeral procession to pass by on route from Westminster to Windsor. TfL have not mentioned this as a reason the work is taking longer, but it is also a contributing factor.

Although Phase Two of the project is one week behind schedule, TfL says it still intends to have the work completed before Christmas.

Image above: the Cromwell Road Railway Bridge

Timeline of work… and possible delays

Phase Three of the project will start two weeks later than intended, but TfL say this will be less disruptive as the westbound carriageway will be fully reopened.

From 7 November to 9 December the eastbound carriageway of the A4 will be reduced to two lanes between Chiswick Roundabout and Hogarth Roundabout. The slip road to join the A4 eastbound at Chiswick Roundabout will be closed.

After Phase Three, there will be two full directional weekend closures on the A4 eastbound between M4 junction 2 and Hogarth Roundabout to enable the completion of the works and the safe removal of traffic management measures.

These will take place from 11.00pm on Friday 9 December to 5.00am on Monday 12 December and from 11.00pm on Friday 16 December to 5.00am. on Monday 19 December.

If there are further delays due to weather conditions and unforeseen circumstances the plan is for two additional full directional closures from 11.00pm on Friday 6 January to 5.00am on Monday 9 January and from 11.00pm on Friday 13 January to 5.00am Monday on 16 January. No work will take place on Christmas and New Year weekends.

The pavement on eastbound carriageway side between Oxford Road North and Harvard Hill will be closed from 7 November to 9 December. Diversion routes, via the subway at Harvard Hill and the underpass on Wellesley Road, will be signposted.

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