When Fleetwood Urban was chosen to collaborate with landscape architects Spiire to deliver a shared cycle bridge at Stonehill, we started with a sincere desire to achieve the designer’s vision.

Stonehill is a new, master-planned community in Bacchus Marsh, Victoria. Dividing the site however was a gorge almost 60 metres wide and 18 metres deep formed by the Werribee River. This was not just an issue for pedestrian connectivity for the new community, but was proving a major challenge for installing the sewer main infrastructure. Spiire’s Principal Landscape Architect Matt York saw the opportunity to solve two problems, and looked to Fleetwood for ways of adapting their Stirling™ cable stayed bridge to also carry the sewer line.

Fleetwood’s National Director of Construction, John Deely, explained: “Our Stirling™ product has been used in many places throughout Australia. Because we know the product intimately, it is simple for us to produce modifications including length, width and materials used.”

At 54 metres in length, and standing in excess of 18 metres high over a gorge of 18 metres deep, the shared cycle bridge with its vibrant red towers is now an outstanding feature of the landscape.

Designed to enable pedestrians and cyclists to navigate the Werribee River and head directly to the Stonehill neighbourhood activity centre, the bridge fitted in perfectly with the designer’s desire for simple and easy pedestrian connectivity on the site. The bridge also cleverly concealed a sewer pipe, carrying it from one side of the embankment to the other, thus providing both practical amenity and attractive infrastructure.

The bridge consists of a galvanised steel superstructure, fibre reinforced plastic (FRP) decking, painted towers and galvanised steel cables. The main concrete piers were drilled and poured using a 45 tonne piling rig. Four large abutments were also poured on site.

Fleetwood worked with Spiire using our DesignExecute™ approach to achieve a successful outcome throughout the entire process. Together, we had direct control over the end product. There was no third party involved. Our team worked with the design, the construction and the manufacturing, streamlining the process right up to the final installation.

By using Fleetwood’s specialist knowledge and a tried and true technology, we were able to make the complex simple, and create the bridge the designer envisaged.