Found a huge hidden culvert behind a wall, check out footage of this at 11 minutes 47 seconds & 13 Minutes 40 seconds into the video
Most of the river is culverted through Bolton town centre, running under Knowsley Street; Market Place and Bridge Street.and before 1836 the river formed the boundary between the townships of Great and Little Bolton.
The river’s name is derived from the Old English croh and wella, the winding stream.
27 сен 2021