Maroochy Boulevard Interchange


Maroochy Shire Council/Qld Department of Transport and Main Roads


Maroochydore, Qld

Maroochy Boulevard Interchange Project

Overview of Project

The project was managed by Maroochy Shire Council as a joint funding partnership between Maroochy Shire Council and the QLD Department of Main Roads.

The works involved the construction of 2 bridges, (1 crossing live traffic), flexible pavement on and off ramps, stormwater drainage including RCP and RCBC drainage adjacent to live traffic and a wetland area.

The location provided soft ground conditions where rock platforms were required to provide solid foundations on a large proportion of the site.

Bridgework construction was undertaken in stages to avoid working above live traffic. Part of this construction staging involved the construction of a temporary side track in a confined area adjacent to live traffic on the Sunshine Motorway.

Scope of Works


  • Prestressed and cast in-situ piles,
  • Reinforced concrete piers and headstocks,
  • Pre-stressed concrete T-Girder substructure,
  • Reinforced earth retaining wall abutments,
  • Abutment protection and rock pitching,
  • Removal of existing bridge abutment adjacent to live traffic.


  • Removal of existing pavement,
  • Unbound and plant mixed stabilised pavement,
  • Concrete,
  • W-Beam and steel wire rope barriers,
  • Traffic signals,
  • Signs, line marking, fencing and street lighting,
  • Dense and open graded asphalt pavements.


  • Clearing and grubbing as well as topsoil stripping,
  • Bulk excavation and embankment construction,
  • Treatment of Acid Sulphate Soils,
  • Removal of extensive unsuitable material and construction of rock fill working platform.


  • Drainage structures including extension of RCP and RCBC drainage structures under existing motorway,
  • Removal and plugging of redundant pipework,
  • Construction of wire mattresses,
  • Landscaping including hydromulching and turf.

Maroochy Boulevard Interchange Project Image Gallery

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