Asset Management of Auckland's Road Stormwater Network

Stormwater Conference

Auckland Transport manages the local transport network in the Auckland region including the Hauraki Gulf Islands. The total value of the transport network is approximately $9.2 billion. A significant portion of this includes roads, footpaths, bridges, culverts, retaining walls and seawalls.

In recent years stormwater is increasingly impacting adversely on the road network infrastructure causing flooding, slips and affecting the structural integrity of the road corridor assets.

Auckland Transport and GHD have taken a proactive approach to understand the impact of stormwater and increased urban development on its infrastructure assets. As part of this approach, Auckland Transport has developed a comprehensive Asset Class Management Plan (ACMP) to manage its stormwater asset.

The objectives of the ACMP are good governance and asset stewardship, knowledge of stakeholder requirements, legislative compliance, asset knowledge including condition and performance required to deliver services, knowledge of risks, comprehensive knowledge of what is required to deliver services in a sustainable manner, and allocation of finances and resources.

GHD has conducted the following studies for Auckland Transport and implementation works to meet the objectives of the ACMP:

  • Identification of flooding hotspots, stormwater quality issues and development of options,
  • Hauraki Gulf Islands Stormwater Management studies to manage the table drainage systems, wetlands, detention basins, structural integrity of road assets, coastal erosion and slope stability,
  • Soakage studies to identify condition, capacity, risk and operations and maintenance regimes for Auckland Transport’s 2,500 soakholes, and
  • Collaboration with other entities in the management of the entire stormwater network including joint discharge consents and agreements on ownership and operational responsibilities of stormwater assets.

To work towards excellence in asset management, Auckland Transport is identifying future threats to its infrastructure assets from stormwater. This paper discusses the asset management planning, the results of studies and future preventative maintenance strategies.

Conference Papers Resource - Conference Papers Stormwater

1. John Tetteroo & Andy Irwin.pdf

pdf
2 MB
21 Jun 2016