Whalley Hydro project's giant Archimedes screw fitted
3 September 2014 Last updated at 02:58 BST
A giant Archimedes screw has been lowered into place as part of a Lancashire community project to generate power.
Whalley Community Hydro Limited is building an electricity-generating water mill at Whalley Weir on the River Calder.
The group behind the scheme said the turbine would generate about £90,000 of electricity a year when completed.