A1M: Full carriageway closure in Hertfordshire today

Drivers are advised there will be a full carriageway overnight closure on the A1M in Hertfordshire Tuesday 26 March, while essential work takes place. 
National Highways will carry out further investigations on the A1M northbound to determine the full extent of the significant safety defect and to ensure the safety of all road users.  While National Highways recognise challenges posed by the defect, it condemns the unfair frustration expressed by drivers towards roadworkers.  

Since Thursday, the team completed 29 cores of the road between 5m and 18m deep. Each 5m cores takes about 1 hour to core probe and reinstate.  
Lane 1 on the A1M northbound will remain closed over the week between junctions 6 (The Clock) and 7 (Langley Sidings).  

Today the A1M northbound carriageway will be fully closed overnight between junctions 6 and 7 from 9pm-6am.

Heather Openshaw, Head of Service Delivery said:  
“We are sorry for any inconvenience caused. The team is working around the clock to determine the full extent of the defect and confirm the remedial works that are required. Our roads keep the country moving, keep families connected and businesses in business, so our roadworkers are vital to everyone’s wellbeing, and their wellbeing is vital to us.” 

Drivers should allow extra time for their journeys and follows the official diversion route signed.


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