Overnight closures will take place on the M1 next week while the carriageways are swept.

The northbound exit slip road will be closed overnight on M1 junction 6, in Bricket Wood, between 10pm and 5am, on Wednesday August 9.

A signed diversion will be in place on junction 8 and return.

The eastbound entry slip road will also be closed overnight, between 10pm and 5am, on Thursday August 10, but a signed diversion will be in place in the A308, A311 and A312 to Jobs Dairy roundabout.