The M5 will be closed between Bridgwater and Burnham-on-Sea for barrier maintenance works in November.
A section of the motorway's wire rope barrier has reached the end of its life and will be replaced with new steel beam barriers.
Traffic will be diverted via the A38 to re-join the M5 during the closures.
The overnight closures have been planned to avoid the nights of the Burnham and Weston-super-Mare carnivals.
The £1.1 million barrier renewal scheme is part of a larger maintenance project.
Author's summary: M5 closure for maintenance works near Bridgwater.