"The Rue d'Auseil lay across a dark river bordered by precipitous brick blear-windowed warehouses and spanned by a ponderous bridge of dark stone. It was always shadowy, along that river, as if the smoke of neighboring factories shut out the sun perpetually. The river was also odorous with evil stenches which I have never smelled elsewhere, and which may some day help me to find it, since I should recognize them at once."
very good description of the wlk to salford from mcr, which necissitates crossing the river irwell, possibly the darkest and most polluteed city river ever, there are no riverside areas