Island Bay Seawall

Next steps

• November 2014
  The Environment Committee is hearing oral submissions: Environment Committee - 27.11.14

Options

The options for the seawall include either a combination of or aspects of the following:

• Retain the sea wall in its present alignment and re-build the damaged section to current building code specifications (Option 1) (350KB PDF)
• Initiate beach nourishment to provide a buffer where the beach is at its narrowest and where the wall is most vulnerable to large waves / storm surge (Option 2) (992KB PDF)
• Relocate the wall and road further inland to the natural contour of the beach (Option 3) (683KB PDF)
• Remove section of seawall, close a part of the road and restore some coastal dunes (Option 4) (522KB PDF)
  This option closes part of The Esplanade in front of Shorland Park.
• Remove section of seawall, close some local roads and establish some coastal dune systems linking the beach with Shorland Park (Option 5) (650KB PDF)
  This option closes part of The Esplanade and the intersection of Reef Street and The Esplanade.

Background

After the June 2013 storm the Council placed a temporary rock barrier in the broken section of the seawall to protect the footpath and road. Before any decision is made on the options to address the damage, the Council sought to hear your preferred option for managing long-term coastal hazards in the area.

Tonkin & Taylor have been commissioned by the Council to undertake a high level assessment of coastal processes operating within Island Bay. They have evaluated likely future shoreline evolution and effects on the existing infrastructure, and assessed potential future management options to improve long-term resilience.

More information