Dam Case Studies

This TrustPower hydro project utilises the 310m elevation difference between the existing pipeline diverting water from Deep Stream and Lake Mahinerangi (the principal storage for the Waipori Scheme near Dunedin). The scheme includes two power stations, a storage lake and conveyance systems involving canals, penstocks, and associated structures. Principal water retaining structures include:

• Main dam, 25m height, retaining a reservoir of just under two million cubic metres stored volume at full supply level.
• Saddle dam 9m height.
• 8km of canal, incorporating Dam ‘C’, approximately 8m high.