The heavy traffic combined with the 50mph speed restrictions in place due to ongoing roadworks is causing the build-up.
The Highways Agency says the pocket of congestion is adding around 15 minutes to journeys at present.
Notts: Roadworks causing congestion on M1 near Worksop
Drivers heading southbound on the M1 between junction 30 at Worksop and Junction 29A at Markham Vale are currently facing delays due to congestion.
By The Newsroom
Monday, 1st September 2014, 11:18 am