Outline Plan of Works
3.
Site Description
The main works will be undertaken near and within the existing Mt Eden Station area and along the NAL, in an existing urban environment generally bounded by the NAL (south), State Highway 1 (east), Dominion Road (west), and Nikau Street (north). The main works will include construction activity along Nikau Street, Ruru Street, Porters Avenue, Fenton Street, Haultain Street, Ngahura Street, Flower Street, Shaddock Street, Mt Eden Road, Normanby Road, Boston Road and Nugent Street. The main works area is approximately 10.5ha and is a fully developed urban environment with nearly 100% impervious cover. Approximately 2.0ha is rail corridor including ballast and impervious station and road crossing areas. The remaining 8.5ha comprises a fully developed urban environment including buildings (some of which have now been demolished), roads and carparks. There are limited areas (approximately 5,500m2) of existing vegetation within the main works area. The topography of the area slopes down towards the railway corridor (Figure 3-1). There are overland flow paths within the rail corridor as well as along streets and within some properties, such as 32 Normanby Road and 1 Enfield Street. This results in some areas within and adjacent to the rail corridor being prone to the 1% Annual Exceedance Probability (AEP) floodplains. The stormwater network and associated overland flow paths discharge ultimately to Motions Creek and the Upper Waitematā Harbour.
Figure 3-1: Topography, overland flow paths and 1% AEP floodplains of the Mt Eden main works area
Land uses within the vicinity of the main works comprise a mixture of residential, commercial, and light industrial activities within generally low-rise buildings (ranging from one to three storeys, varying in height given ground contour). Sensitive receivers in the area include: • residential dwellings (including apartments and townhouses) and offices that either directly adjoin the works area or are in close proximity; • an early childhood education facility (Bear Park) located at 32 Akiraho Street; • a community mental health outpatient clinic located at 5 Porters Avenue; • accommodation units and offices at the Mt Eden Corrections Facility; and Page 21
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