A SECTION of the central reservation on the M1 through South Yorkshire is to be replaced with a concrete barrier.
Engineers believe concrete barriers are more robust, and more unlikely to require repairs after collisions, than metal.
From next Monday until April 19, a 50mph speed limit will be in place 24 hours a day from junction 35a to 37, between High Green and Dodworth.
Highways Agency project manager Tim Calvert said: “This barrier replacement scheme will improve safety on the M1 in South Yorkshire.
“Concrete barriers reduce the risk of vehicles involved in accidents crossing from one side of the motorway to the other, and improve the safety of road users and road workers.
“To minimise disruption to drivers, three lanes will remain open in each direction during the day.
“We advise road users to plan their journeys to avoid delays. And, for the safety of drivers and roadworkers, we encourage motorists to drive carefully past the site, keeping within the speed limit, concentrating on the road ahead.”