M1 northbound between J4 and J5 | Northbound | Roadworks

On the M1 northbound between junctions J1 and J5, expect delays of up to 10 mins at peak times due to roadworks closing two lanes, from 11 pm on 31 July 2015 to 5 am on 1 August 2015.

Archived from Traffic Reports at 11:20 pm, July 30, 2015