EastLink Tunnels

Two tunnels keep traffic moving safely and protect the environment.

About the tunnels

There are two tunnels:

• Mullum Mullum Tunnel

• Melba Tunnel

The tunnels:

• pass under the Mullum Mullum valley

• protect wildlife and the environment above

Key facts:

• 1.6 km long

• for vehicles up to 4.65 metres high

Tunnel safety

Safety is very important.

We:

• work closely with emergency services

• regularly test our safety systems

• train for emergencies

How to stay safe in a tunnel

Please:

• follow speed limits

• follow all signs and instructions

• avoid changing lanes if possible

If your vehicle breaks down

If your vehicle stops in a tunnel:

• stay in your vehicle if it is safe

• wait for help to arrive

We will:

• detect your vehicle

• slow traffic

• warn other drivers

• send an incident response vehicle

If you are told to leave the tunnel:

• follow instructions from staff or announcements

Tunnel safety systems

The tunnels have many safety features, including:

• cameras to monitor traffic

• automatic incident detection

• lane control and speed signs

• height detectors for tall vehicles

• boom gates to stop over‑height vehicles

• fire detection and fire suppression systems

• emergency lighting and message signs

• radio and loudspeaker announcements

• mobile phone coverage and emergency phones

Vehicles not allowed in tunnels

Some vehicles cannot use the tunnels.

1. Over‑height vehicles

• higher than 4.65 metres

• will be stopped by boom gates

2. Dangerous goods vehicles

• vehicles with safety placards

• are not allowed in tunnels

3. Oversize vehicles

• vehicles classified as oversize by VicRoads

• must use the OD1 route to go around the tunnels