ML's Upper Limits is a cluster of CSOs that drop into the mighty Motherload (NSWI) deep in the bowels of Bristol.
Dreadnought, (aka the Malago Storm Water Interceptor) is a large concrete drain that takes the flow from the Malago and Pigeonhouse Stream in the Southern part of Bristol.
This little CSO is found in Bury and has the shortest overflow pipe I've seen, the CSO chamber is only a stones throw from the outfall.
This CSO serves a town to the East of Manchester, it takes sewer overflows to a big tank at the works or diverts into the local river.
This culvert takes a brook just over 300m and varies between brick horseshoe, CMP, stone arch and eventually splits to a stoop before the infall.
Found in Bolton this drain is about 400m long and sports a grill at both ends, the watercourse eventually joins the Croal.
The River Croal flows through and under Bolton town centre in a series of culverts. They are constructed mainly from stone and concrete and are quite large further upstream.