The Hulme Flume is a large Victorian brick sewer overflow in Manchester that outfalls to the River Irwell. Officially known as the Work 9 sewer it was built c1913 and it serves a total of 3 intercepting sewers.
The Works is the giant brick overflow for the Moston brook, packed full of features and easy to access it's become a right of passage for many Manchester drainers.
SSSI is a Victorian sewer overflow on the Work 5 Interceptor with a big brick overflow and brand new screen chamber.
A balancer between the A and B Outfall sewers with penstocks to enable throttling between pipes.
The brook emerged from a tiny brick culvert around a foot high, but downstream a few meters was the outfall for what I presume to be the brook's bypass.