A series of overnight closures on the M4 at Chieveley begin on Monday night (17 June) so resurfacing work can continue.
The westbound exit and entry slip roads will be closed overnight, between 9pm and 6am, for three nights.
Signed diversions will be in place via the adjacent junctions.
The roundabout and approach roads from the A34 and M4 will also be closed from 10pm on Friday 21 June through to 6am on Monday 24 June.
Various signed diversions will be in place primarily using the A4 between junctions 12 and 14 via Newbury.
A secondary diversion will be in place from Newbury and Hermitage for local traffic at Chieveley and for Newbury Showground.