J2 Hydro

Situated in Bury, Lancashire

To create a concrete channel and generator house alongside the River Roch to accommodate a 75kw hydro electric turbine

Works included re-grading of the river bed, installation of cofferdams and temporary support works to enable excavation of a 5m wide channel to a depth of 6m, of which 2m were below the water level. Techniques were employed to enable over 100 cubic metres of concrete to be cast alongside a river, creating a new water channel, co-ordinating the lifting of an Archimedes screw into position and then finally grouting into position.

J2 Business Park, situated near B&Q Warehouse Bury on the M66, is home to The Bury Black Pudding Co. Ltd who utilise much of the electricity generated.

The original water workings date back to 1766 and a date stone has been retained in original position as part of the new installation.