
6 min read
Sydney Metro West Portion 1: 3,158 tunnel defects on one register
How DEFECTED put 3,158 Sydney Metro West Portion 1 tunnel defects on one register: piloted from 6 July 2026, in production since 2 August, two contractors.
Read the storyDeployment stories and product news from DEFECTED, the offline-first app tunnel rectification crews use to record defects, injection and repair photos ring by ring, underground and with no signal.
Each story names the project, the dates and the figures, and the figures come from the app's own records rather than from spreadsheets. The first is Sydney Metro West Portion 1, piloted from 6 July 2026 and in production since 2 August 2026.
New to DEFECTED? Start with how it works or the product walkthroughs.