Ventilation for the large NorthConnex tunnels is vital for the safety of travelers, and an integral part of the overall scheme and design of the NorthConnex project was design and construction of two ventilation facilities. These are monitored to comply with some of the most stringent environmental approvals in the country.
The Northern Ventilation Facility is located on the western side of the M1 Pacific Motorway at Wahroonga, above where motorists exit the northbound tunnel. Evolution Precast manufactured and installed the exposed tapered façade panels that provide a unique presentation for this key infrastructure segment of the Sydney motorway network.