Maungawhau Water Supply Upgrade Project

The Maungawhau Water Supply Upgrade Project will improve the security of the water supply to the suburbs of Mt Eden, Epsom and Greenlane.

The major focus is rebuilding the Mt Eden Reservoir Complex located in Mt Eden (Maungawhau) Reserve. The three reservoirs that make up the complex are between 80 and 100 years old and are approaching the end of their useful lives.
The reservoirs are buried concrete tanks that take up the area of a rugby field and are nearly six metres deep. The new complex is being built within the footprint of the existing reservoirs to minimise the impact on the park. The area above the reservoirs will be landscaped.

The Mt Eden reservoirs are the highest in the Auckland isthmus. This means they can supply high points in the local network by gravity rather than pumps. 

The new reservoirs will be able to store 27 million litres of water, enough to meet the local needs for at least 24 hours without being topped up.
Watercare is working closely with a number of stakeholders including Auckland City Parks, Friends of Maungawhau and local iwi to ensure disruption is minimised to the mountain and the public.
Summit access will not be cut off, and walking tracks will also remain open, although slight diversions may occur at times.

Works timeline:

2009

  • October: Begin enabling works.

2010

  • June: Site establishment.
  • July: Construct access way into the western reservoir. Almost all the construction traffic will access through the western side of the reservoir which will leave the eastern side open for walkers.
  • August to September: Commence construction of new northern reservoir wall.
  • October: Demolish roof and columns of reservoirs one and two to make way for new northern reservoir.
  • November to February 2011: Complete construction of northern reservoir.

2011

  • March: Commission new northern reservoir.
  • April: Commence construction of new southern reservoir.
  • May: Demolish roof and columns of old southern reservoir.
  • June to July: Complete construction of southern reservoir.
  • July: Commission new southern reservoir.
  • July: Reinstatement of park.

Hours of work
Normal hours for construction works will be 7.30am to 6pm, Monday through Friday, and 8am to 6pm on Saturday.
 
For further information on this project please contact:
Richard Weaver
Project Manager
09 539 7663
rweaver@water.co.nz