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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Supplemental Advance Directional Sign:
Supplemental AD sign at Murarrie, approaching Lytton Rd (SR24), October 2021.
Image © Rob Tilley
Advance Directional Sign:
AD sign at Murarrie, approaching Lytton Rd (SR24), October 2021.
Image © Rob Tilley
Intersection Directional Sign:
ID sign at Murarrie, at the off-ramp to Lytton Rd (SR24), October 2021.
Image © Rob Tilley
Reassurance Directional Sign:
Distance sign at Murarrie, October 2021.
Image © Rob Tilley
Advance Directional Sign:
AD sign at Lytton, approaching Lytton Rd (SR24), October 2021.
Image © Rob Tilley
Supplemental Advance Directional Sign:
Supplemental AD sign at Lytton, approaching Lytton Rd (SR24), October 2021.
Image © Rob Tilley
Intersection Directional Sign:
ID sign at Lytton, at the interchange with Lytton Rd (SR24), October 2021.
Image © Rob Tilley
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.