The environmental impact statement (EIS) examines the following key issues associated with the preferred route and concept design:
- Geotechnical and soil conditions.
- Hydrology, flooding and water quality.
- Flora and fauna.
- Aquatic ecology.
- Air quality.
- Urban design and landscape.
- Hazard and risk.
- Cultural heritage.
- Land use.
- Local business.
- Social and community issues.
- Noise.
- Environmental management.
- Concept design integrating urban design, engineering and environmental issues.
- The overall scale of the project and staging options.
A summary of the EIS outlines the key conclusions following investigations into these key issues. Further detailed information can be found in the EIS main volume and more detail in the working papers.These documents are available from the EIS page.