In early summer 2016, work was undertaken on the stretch between Rettendon and Howe Green (in both directions) to turn the existing hard shoulders into 3rd lanes, as the traffic volume had reached 50,000 vehicles per day. The resurfacing and re-marking of the hard shoulders needed to turn them into 3rd lanes was completed, but problems were then discovered in the crash barriers and subsequently the strength of the embankments supporting the road. The new lanes were then coned off, and the road left at 2 lanes in each direction with no hard shoulder. As of 18 April 2018, the southbound lane has been fully re-opened whilst work continues on the northbound side.