| 57.5 km|| Autoroutes of France|
The A21 autoroute is a toll free highway in north western France it is also known as the Rocade Minière. It is 57.6 kilometres (35.8 mi) long.
01 D301 Start of autoroute Towns at junction with D937 Towns served: Barlin
06 Aix-Noulette Junction with A26 to Calais and Reims.
07 Bully - Liévin Towns served: Bully-les-Mines and Liévin
08 Loos Towns served: Lens
09 Lens-nord Towns Served: Lens
10 RN47 Towns Served: Lille via RN47 and RN41
11 Lens est Towns served: Lens
12 Loison Towns Served: Carvin
13 Lens-centre Towns Served: Lens
x A211 Junction with A211 spur to Lens (south) and RN17.
13 Lens-centre Towns served: Lens
14 Noyelles-sous-Lens Towns served: Noyelles-sous-Lens
15 Fouquières-les-Lens Towns Served: Fouquières-lès-Lens
16 Hénin-Beaumont Towns served: Hénin-Beaumont
x A1 autoroute Junction with A1 to Paris and Lille.
17 Noyelles-Godault Towns Served: Noyelles-Godault
18 Courcelles-lès-Lens Towns served: Courcelles-lès-Lens
19 RN421 Towns served Douai and Cambrai (via RN43)
20 RN455 Autoroute becomes the N455.
A21 autoroute Wikipedia
Upgrade of N455 between Flers-en-Escrebieux and Pecquencourt which is the northern by-pass Douai.
Upgrade of the N455 between Pecquencourt and Douchy-les-Mines and the A2.