Statistics:

Length:
7 km
Termini:
Eastern: Port Dr (SR24) and Pritchard St (SR24 and unnumbered), Lytton
Western: Gateway Mwy (M1), Hemmant
Suburbs, Towns & Localities Along Route:
Hemmant and Lytton

Route Numbering:

Current: M4
Former: 42
Road Authority Internal Classification: 1
U27

General Information:

M4 is a motorway grade road linking the Gateway Mwy (M1) with Brisbane's eastern heavy industrial area near the Brisbane River and airport.

Originally starting life as a super-2 limited access road, M4 now features full motorway conditions.

History:

2003: Port of Brisbane Motorway (SR42) opened to traffic. 2
2010: Upgrade of Lindum Rd (SR30) interchange at Hemmant. 3
2012: State Route 42 replaced by M4 route number.
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Murarrie to Lytton

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Supplemental Advance Directional Sign:

Supplemental AD sign at Murarrie, approaching Lytton Rd (SR24), October 2021.

Image © Rob Tilley

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Advance Directional Sign:

AD sign at Murarrie, approaching Lytton Rd (SR24), October 2021.

Image © Rob Tilley

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Intersection Directional Sign:

ID sign at Murarrie, at the off-ramp to Lytton Rd (SR24), October 2021.

Image © Rob Tilley

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Reassurance Directional Sign:

Distance sign at Murarrie, October 2021.

Image © Rob Tilley

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Advance Directional Sign:

AD sign at Lytton, approaching Lytton Rd (SR24), October 2021.

Image © Rob Tilley

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Supplemental Advance Directional Sign:

Supplemental AD sign at Lytton, approaching Lytton Rd (SR24), October 2021.

Image © Rob Tilley

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Intersection Directional Sign:

ID sign at Lytton, at the interchange with Lytton Rd (SR24), October 2021.

Image © Rob Tilley

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Advance Directional Sign:

AD sign on the off-ramp to Lytton Rd (SR24) at Lytton, October 2021.

Image © Rob Tilley

1 QLD Government, Department of Transport and Main Roads, The State Road Network of Queensland map, Metropolitan District, November 2022.
2 QLD Government, Department of Transport and Main Roads, PortConnect Project Overview.
3 QLD Government, Department of Transport and Main Roads, Projects, Intersection safety improvements for access to the Port of Brisbane.