Motorway gantry sign
A gantry spanning the motorway with blue overhead signs showing the following text.
Forward destinations: Stoke - on - Trent; Stafford, Birmingham M6 .
Exit destinations: A556 Northwich [Solid diamond diversion symbol] [Solid circle diversion symbol]; Macclesfield, Knutsford .
Junction number: 19.
There's a Northwich and a Middlewich around here, but no Southwich. I wonder what they did with it.