Documents show places in Bedfordshire could become part of a new Cambridgeshire council area.
The closures in Bedfordshire will take place over three nights between 21:00 BST and 05:00 BST.
Works continues on the new dual carriageway between the Black Cat roundabout and Caxton Gibbet.
Police are appealing for witnesses after the fatal incident on Saturday.
National Highways says both north and southbound carriageways have reopened.
Baron Way forms part of a £1bn highways project linking the Black Cat and Caxton Gibbet roundabouts.
Engineers will remove power cables on the A1 northbound as part of a project to build a new road.
Gheorghe Hirtopeanu only came to a halt after officers deployed a stinger, say police.
Work on the Cambridgeshire-Bedfordshire border reveals the highs and lows of Roman well-building.
