Dredging Contractors

Introduction

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 Work

The scope of work included:

Bridgeworks

• 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

Roadworks

• 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

Earthworks

• 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

Miscellaneous

• 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