Places   (Help with places, streets and buildings in Wigan.)

Can anyone settle a disagreement. Woolies side wall ran down Station Road to the Ritz. I recollect a back door to Woolies, up some steps and in to the store. A friend says it was a loading gate, not a door, and it had a drainpipe set in stained concrete ( ? ). Time frame is mid to late 70s. Any super memories out there can clarify ? Have checked ww photos but they seem later, showing this area bricked up.