![Span crack in the skytrain for the North West Rail.](/web/20161223085445im_/http://www.smh.com.au/content/dam/images/g/s/9/8/m/4/image.related.landscape.460x307.gtggmt.png/1482411403022.jpg)
The 'disappointing' failures in Sydney's Skytrain construction
The project director of the $8.3 billion Sydney Metro NorthWest says it is "very disappointing" the contractor building the four-kilometre elevated section of the train line used an inappropriate construction method that resulted in part of that line buckling.