1 May 2013 — Tenix has been awarded Australia’s first Infrastructure Sustainability rating, achieving an “excellent” rating level for the design of two sewage treatment plants at Cannonvale and Proserpine in north Queensland.

The rating was announced at the Queensland launch of the Infrastructure Sustainability Council of Australia.

The IS scheme evaluates the sustainability of the design, construction and operation of infrastructure, setting the best-practice benchmark for sustainability.

And while the Tenix project, being carried out for the Whitsunday Regional Council, is the first rated there are five more in the wings including GatewayWA, Gold Coast Light Rail, Rous Head Extension, Great Eastern Highway Upgrade, and Enlarged Cotter Dam, with a combined capital value of $2.1 billion.

Tenix chief executive officer Ross Taylor said the IS rating process had encouraged the company “to identify and implement best-practice and innovative sustainability solutions to deliver long-term environmental, social and economic benefit for the Whitsunday region”.

Tenix’s design will see more than 15,000 megaWatt hours less electricity used over the plants’ operational lives. The design will also save 4800 tonnes of construction materials being used and will avoid the emission of 15,400 tonnes of carbon.

A state-of-the-art activated sludge design which enhances nitrogen and phosphorous removal will result in 28 tonnes less nitrogen and 16 tonnes less phosphorous ending up in the Great Barrier Reef each year.

“The Whitsunday Regional Council, for whom Tenix is designing, constructing, operating and maintaining the STPs for has shown leadership in demonstrating how sustainability of critical infrastructure can reap benefits to their local community and the environment including the Great Barrier Reef Marine Park and the 74 Whitsunday Islands that fringe the coastline,” said Mr Taylor said.

The Infrastructure Sustainability Council of Australia, which just launched its Queensland operation, oversees the IS scheme.

Chief executive officer Antony Sprigg said the IS scheme would provide ongoing benefits to Australian infrastructure owners and users.

“ISCA’s IS scheme is focused on changing industry behaviour and making sustainability a priority in the planning, delivery and operation of infrastructure,” he said.

“Designing and delivering more sustainable infrastructure provides benefits to owners, users and society over the long life of infrastructure, including lower environmental impact, enhanced social outcomes, better asset performance, and commercial advantages.”

The other projects registered for a rating are:


This, the largest infrastructure project ever undertaken by Main Roads Western Australia, is a billion-dollar project involving a major upgrade to the road network surrounding Perth Airport, and the freight and industrial hubs of Kewdale and Forrestfield. Capital value $1 billion

Gold Coast Light Rail

The project relates to the development of a light rail system that passes through key activity centres of Southport, Surfers Paradise and Broadbeach. The 13-kilometre Stage One corridor and any future stages promise to significantly improve the liveability of the Gold Coast by improving accessibility, while reducing the effects of congestion that comes with a rapidly growing city. Capital value of stage one $437 million.

Rous Head Extension

The project relates to the development of the reclamation area in Rous Head, Fremantle, and comprises partitioning into lots, construction of the access roads and the various services to the boundaries of the lots to allow subsequent tenants to develop business servicing the port. Capital value $15 million.

Great Eastern Highway Upgrade

A 4.2km section of the Great Eastern Highway between Kooyong Road and Tonkin Highway is being widened from four to six lanes with a number of ancillary improvements including central medians, upgraded intersections, on road cycling facilities, bus priority lanes and continuous paths for pedestrians. Capital value $350 million.

Enlarged Cotter Dam

An Enlarged Cotter Dam in the ACT is being built downstream of the existing dam to increase the Cotter Reservoir’s capacity from 4GL to 78GL. The Enlarged Cotter Dam forms part of ACTEW’s continued response to ensuring a secure water supply for the ACT and to address drought, climate change and variability. Capital value $299 million.

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