Report on proposed realignment of Papakura Stream, City of Manukau

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Brown, I.R. 1974 Report on proposed realignment of Papakura Stream, City of Manukau. Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report EG 207 3 p.

Abstract: Part of the natural flood plain of the Papakura Stream has been rezoned by the Town and Country Planning Appeal Board as Residential A. To accommodate a maximum number of residential sections, the owner of the land purposes to realign approximately 2 km of the Papakura Stream between the Southern Motorway and Mill Road. This report results from a request (3 October 1974) from the City Engineer, City of Manakau, for advice on engineering geological aspects of the proposed realignment of the Papakura Stream; specifically geological and soil data and other relevant information for the catchment with particular reguard to groundwater levels and possible settlement. The catchment area has been geologically mapped at a scale of 1:250,000 (Schofield 1967) and partly at a scale of 1:25,000 (Kermode in preparation. Field inspection of recent drainage excavations was undertaken, and a brief visit was made to the upper reaches of the Papakura Stream Catchment. Drillers logs of core drill holes were provided by the developers consultants, Cocks and Lapish. A geological map of the Papakura Stream catchment area (Fig. 1) was prepared utilizing existing geological information, supplemented by field inspections and aerial photographic interpretation. (auth)