A long storm drain in Blackburn similar to to the infamous Bunker.
A large multi level screening chamber with dual powered screens that outfalls to the River Blakewater.
The River Blakewater flows underneath part of Blackburn in a long and mostly low culvert, it was originally stone but a large part was reinforced with concrete in 2014 for the Cathedral Quarter development.
A culvert under a mill that was used to provide power, now an interesting setup with a brick chambers and lots of mud.
A long walk down concrete box section leeds to a large CSO tank under the streets of Birmingham.
The River Rea travels through Birmingham mostly in a brick lined cutting and also a rather nice triple barrelled culvert.
Chisel Ma Nizzle is a Victorian Era sewer overflow in Manchester City Centre, it's quite possibly the original Market Street sewer which used to flow straight into the River Irwell