The City of Launceston commissioned the construction of a new pedestrian bridge, spanning the North Esk River between Seaport and Northbank, where an emerging upscale restaurant and park district was under development.

Unsatisfied with the unsightly but functional industry standard rail truss solution, the City of Launceston engaged BridgePro for a solution that not only met the technical requirements but was also architecturally unique to match the aesthetics of the area.

The BridgePro solution was chosen by the council over competing for cable-stayed and box-truss solutions on the basis of the BridgePro team, aesthetics and methodology.

The design team at BridgePro worked tirelessly to develop a functional and visually appealing bridge, which, when constructed, would prove to be a world-leading design solution. The design and construction of such a unique solution required a departure from conventional tried-and-tested designs.

BridgePro resorted to first-principle calculations, computer modelling, and prototype testing to ensure the new bridge conformed to Australian Standards and design specifications. The BridgePro design comprises three spans supported on two centre piers in a quad-pod pier arrangement. The significant design feature is the two arched 3d trusses running the length of the bridge on either side, providing the bridge's structural rigidity. The truss-style bridge spans 120 metres and is four metres wide.

BridgePro is extremely proud to have achieved the result by collaborating with 100% Tasmanian companies.

Technical Details

It is a special one because:

• Design, fabricate and install by 100% owned Tasmanian companies showing the great supports and our capabilities to deliver a significant infrastructure project.
• The latest technologies which are not used very often in Tasmania, or even Australia i.e. pile driving and jack-up barge to avoid the challenging of fast changing tide and silky ground.
• 130T of steel features into 4m-wide three arches and 8m-wide landing platform providing plenty spaces and safe accesses for both pedestrian and cyclist between Seaport and the soon-new-developed North Bank.
• The centre of the bridge is clearing a 1:2000-year flood event, as well as maintaining a comfortable clearance for the rowers and other recreational activities along the North Esk River. On the other hand, it is low enough to maintain the spectacular open and boarding view.
• The bridge will be fitted with colour LED lightning system which can be changed remotely during different occasions and the latest trick with motion sensor to detect and synchronise with pedestrian steps.

Relevance to B3, R2 Prequalification Categories

• Complex foundations installed off floating plant (B4)
• Complex geometric / aesthetic shapes (B4)
• Significant fabricated steel superstructure (B4)
• Construction over water using floating cranes (B4)
• Consultant team coordination
• Design management
• Moderate to complex environmental management
• Complex community/ stakeholder interfaces and management (B4)