The motorway will be shut between junction 12 for Theale and junction 11 for Reading South from 10pm until 6am on Tuesday, and drivers will be diverted via the A4 and the A33.
The Highways Agency is warning people to seek other routes.
The motorway will be shut between junction 12 for Theale and junction 11 for Reading South from 10pm until 6am on Tuesday, and drivers will be diverted via the A4 and the A33.
The Highways Agency is warning people to seek other routes.
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