Gulliver, C.P. 1976 Geological investigations for the Waihohonu tunnel and intake. Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report EG 251 24 p.
Abstract: As part of the Rangipo Power Project, construction of an intake structure is proposed on the Waihohonu Stream together with about 1000 m of tunnel to divert water from the Waihohonu to the Rangipo reservoir. This report summarises all geological investigations work carried out to date and suggests further investigations considered necessary prior to final design. (auth)