Auckland Transport

City Rail Link receives sustainability rating


crl sustainability awardThe City Rail Link (CRL) has been awarded a ‘Leading’ Infrastructure Sustainability (IS) Design rating by the Infrastructure Sustainability Council of Australia (ISCA), the highest possible achievement in the IS scheme.

The rating to Auckland Transport is for the design and construction planning (with Connectus) of Contract 2 – Albert Street tunnels and a stormwater diversion. 

To award a rating, ISCA considers project performance across six themes: Management & Governance; Using Resources; Emissions, Pollution & Waste; Ecology; People & Place; and Innovation.  The process the CRL has undertaken to engage and partner with Mana Whenua to embed cultural values into an industry recognised sustainability framework has been acknowledged as a ‘world first’ innovation. 

CRL Project Director Chris Meale says Auckland Transport worked closely with Mana Whenua to tailor the IS tool to suit not only Auckland, but also the New Zealand cultural context.  Also through this partnership with Mana Whenua,  the CRL design is developing a cultural richness and sense of place, which will be carried through to the completed project. 

“We are committed to setting the benchmark for sustainable design, construction and operation of infrastructure in New Zealand.  The sheer scale and significance of the CRL means taking a sustainable approach throughout the project lifecycle, is not an option, it just makes sense. This recognition tells us we’re on the right track to achieving our sustainability goals.” 

The submission to ISCA consisted of design documentation produced through the Early Contractor Involvement (ECI) phase with AT’s Principal Technical Advisors (Aurecon with Mott MacDonald, Jasmax, Grimshaw and Arup) and delivery partner Connectus, the McConnell Dowell/Hawkins joint venture. 

Antony Sprigg, CEO ISCA, says the City Rail Link Contract 2  package achieved a rating score of 78.7, well above the 50 points required to gain an ‘Excellent’ rating. 

“The CRL team put together a very high quality submission demonstrating well prepared management plans, good policies and procedures, opportunities for energy reduction and strong stakeholder engagement and Mana Whenua participation. 

“It is clear that this project will achieve some excellent sustainability outcomes if all the good intentions and well-planned processes are implemented on the ground.” 

Key CRL sustainability initiatives planned over the project lifetime include:

  • Switching from diesel generators to grid electricity during construction
  • The use of LED street-lighting for the Albert Street reinstatement
  • Collaborating with the Energy Efficiency and Conservation Authority (EECA) to promote efficient driving and monitor machinery during construction to reduce fuel use
  • Changing excavation methods to reduce diesel and water use
  • Installing tree pits in the street to collect and filter stormwater runoff.

Read more about the City Rail Link