The closure is part of the ongoing remedial work being carried out to the Boston Manor Viaduct, just west of M4 junction 2, and follows a closure overnight (July 6-7).
The Highways Agency has made the decision to keep the Boston Manor Viaduct closed because in entering the final stages of this complex work we have found a further crack in a sensitive location which requires us to keep the viaduct closed until the repair is complete. We anticipate that this could take up to five days.
We expect the ongoing remedial work programme will be completed to enable the viaduct to operate in its full capacity in time for the London 2012 Olympic Games later this month.
This a sensible precaution given the bridge’s importance, both for people driving to and from west London and for the Games.”
A signed diversion route is in place on the adjacent dual carriageways, the A312 and the A4. Drivers are being advised to keep up to date with traffic conditions and allow extra time for their journeys.
Notes to Editors
Traffic Information from the Highways Agency
The Highways Agency is an executive agency of the Department for Transport. We manage, maintain and improve England's motorways and trunk roads on behalf of the Secretary of State.
Real-time traffic information for England's motorways and major A roads is available:
* From the web at www.highways.gov.uk/traffic or www.highways.gov.uk/mobile if using a phone or mobile device. Before using any mobile, find a safe place to park . Never stop on the hard shoulder of a motorway except in an emergency. Make sure it's safe and legal before you call.
* By phone from the Highways Agency Information Line on 0300 123 5000 at any time (Calls to 0300 numbers will cost no more than 5p per minute from a standard BT residential landline. Call charges from other landlines and mobile networks may vary, but will be no more than a standard geographic call and will be included in all inclusive minutes and discount schemes).
* From Twitter on one of eight separate feeds with live traffic information for each region. For the full index visit www.highways.gov.uk/twitter.