A1(M) Hertfordshire | Southbound | Roadworks On the A1(M) southbound between junctions J4 and J2, there are currently delays of 30 mins due to roadworks . Expect disruption until 12:00 am on 11 April 2011.

A1(M) Hertfordshire | Northbound | Roadworks, road closed The A1(M) northbound will be closed between junctions J3 and J4, due to roadworks, from 10 pm on 3 September 2010 to 5 am on 5 September 2010.

A1(M) Hertfordshire | Southbound | Roadworks, road closed The A1(M) southbound will be closed between junctions J4 and J2, due to roadworks, from 10 pm on 3 September 2010 to 5 am on 5 September 2010.