APA Group

Literature Lane Gas Main Relocation


Gas mains

Contract Type


Year of Completion




Making way for Melbourne’s Metro Tunnel

Supporting sustainable urban development, the timely relocation of a critical gas main in Literature Lane enabled the Metro Tunnel project.

Project Overview

Diona, on behalf of APA Group, collaborated closely with the Cross Yarra Partnership (CYP) to ensure the timely completion of the Literature Lane Gas Main Relocation, to facilitate the construction of the new State Library Station, part of the Metro Tunnel project.

Project Need

The Metro Tunnel project represents a transformative transport initiative for Melbourne, aiming to establish a comprehensive rail line spanning from Sunbury in the west to Cranbourne/Pakenham in the southeast. This ambitious undertaking includes the introduction of larger, modern trains and the construction of five new stations along the route. To enable the new State Library Station, existing gas infrastructure required relocation.

Project Solution

Diona successfully completed the relocation of an existing main, which was decommissioned to support the construction of the new State Library Station for the Metro Tunnel project. This task entailed installing a 110-metre long, 50-millimetre diameter steel main in Literature Lane, located within Melbourne’s central business district.

Value Add | Benefit
Timely Completion

Close collaboration with the Cross Yarra Partnership (CYP) ensured the relocation was delivered on schedule, preventing any delays to the overall CYP project, thus maintaining project timelines and minimising potential costs associated with delays.

Effective Management of Unexpected Finds

Diona’s swift response to the discovery of bones during excavation activities highlights commitment to environmental stewardship, ensuring that proper protocols were followed and potential risks were effectively managed, ultimately safeguarding the project’s progress and reputation.

Infrastructure Enhancement

The installation of a new gas main facilitated the construction of the new State Library Station as part of the Metro Tunnel project, contributing to the enhancement and expansion of Melbourne’s transportation infrastructure.

Expertise in Urban Environments

Successful execution of the project in Melbourne’s central business district demonstrated Diona’s ability to work effectively in complex urban environments, showcasing their expertise and versatility in delivering infrastructure projects in challenging locations.

Client Satisfaction

Diona’s proactive handling of challenges and effective communication with stakeholders, including the client and CYP, led to commendation for our professionalism and problem-solving approach, enhancing our reputation and fostering positive relationships for future projects.

ESG Alignment

The successful completion of the gas main relocation project within Melbourne’s central business district highlights Diona’s social responsibility. By adhering to the proposed program and preventing delays to the construction of the new State Library Station for the Metro Tunnel, Diona contributed to the efficient functioning of public infrastructure, benefiting the local community.

This project directly contributes to building resilient infrastructure by relocating gas mains to facilitate the construction of the new State Library Station, part of the Metro Tunnel project. Diona’s efficient and innovative approach in urban infrastructure development is highlighted, showcasing the capability to manage complex projects in densely populated areas.

By ensuring the timely relocation of the gas main, Diona supported the broader urban development project (Metro Tunnel) that aims to enhance public transport in Melbourne, a key factor in sustainable urban development. This work reflects a commitment to improving urban infrastructure in ways that minimise disruption and support the long-term sustainability of the city.

The collaboration between Diona, APA, and the Cross Yarra Partnership exemplifies effective partnerships in achieving infrastructure goals. The coordination and communication among multiple stakeholders are essential for the success of complex urban projects.