Manchester's Outfall B Sewer dips under the Bridgewater Canal in two brick culverts.
A look for the tunnels of Wet Earth Colliery near Ringley, a site that started the extraction of coal from the Irwell Valley Fault in 1740. One of the reasons this site was important was the involvement of James Brindley.
A look at the lower, largest section of the KSP (King Scholars Pond) Sewer
The main interception point from the old Moss Side system to Manchester's Main Drainage network.
An access shaft allows inspection of the Work 10 and massive Work 4 Interceptor just before they join up.
A CSO chamber and adjoining tank, the stepped overflow leads to the River Bollin.
The River Bollin flows underneath the Railway in Macclesfield in a couple of large culverts.