Motorway gantry sign
A gantry spanning the motorway with blue overhead signs indicating one lane exiting and three continuing ahead, and the following text.
Left lane destinations: M56 ; NORTH WALES; Chester, Runcorn; M'cr (S) & [Airport symbol].
Right-hand three lanes destinations: Birmingham M6.
Junction number: 20.
This pleasing tangle of sliproads opened in the 1970s to accommodate the arrival of the M56, but doesn't contain any sliproads linking the M56 to the M6 south - traffic making that turn goes via the A556, and we'll meet it at the next junction.