View our extensive portfolio of projects across a variety of sectors and services.

Airport Link

The rock riffles and retaining boulder wall banks constructed in Kedron Brooks as part of the Airport Link Project are excellent examples of environmentally sensitive construction techniques Penfold Projects employ in our work.

The design intent was to mitigate the impact of the infrastructure works, and to reinstate the natural landscape and habitat zones, with added structural integrity.

Constructing the riffles in a ‘live’ waterway was not without its challenges. All boulder walls were installed inversely from the brook banks, and extreme rain events had to be factored in. The systematic and respectful approach taken by the project team ensured that the construction techniques were environmentally responsive.

Minimising the environmental impact on the brook during construction was a key element in devising the construction methodology. The delivered product has enhanced the natural beauty of the brook and erased the construction footprint from the infrastructure works.


Thiess John Holland


Infrastructure & Government


Construction | Landscaping