Roads and Maritime Services (formerly Roads and Traffic Authority) has developed an innovative new software tool to monitor condition of various parts of the bridge and help schedule maintenance.

The database creates a three dimensional model of the entire Sydney Harbour Bridge structure.  This innovative tool was developed by Roads and Maritime Services (formerly Roads and Traffic Authority) staff in the Spatial Information Systems Unit.

This software is called the Sydney Harbour Bridge Information System.  The system provides detailed condition ratings of individual bridge components, as it is linked with the database of the inspection reports for each component that makes up the bridge structure.  This assists in the planning of work and monitoring of performance.

The software provides information on almost 3,500 individual bridge components including condition reports, structural assessments and photographs of components. The system stores records of past and planned maintenance activity and has the capacity to generate reports and run asset management diagnostics. The three dimensional model offers a virtual tour of each component of the bridge.

The condition report of each component can be immediately visualised through the use of colour-coded 'Condition Ratings'.  Inspection reports produced are able to detail conditions of:

• segment coating
• corrosion
• contaminants
• defects

The overall condition of the bridge can be displayed easily on a single image that can be zoomed in and rotated around to reveal every component.