Construction of a noise wall along the western side of the Warringah Freeway close to the Brook Street interchange at Crows Nest to benefit residents living on Jenkins Lane, Chandos Street and Mathew Lane. The noise wall constructed is about 180 metres long and 4.5 metres high between St. Thomas’ Rest Park and the existing brick property boundary wall at the end of Jenkins Lane. A three-metre-high noise wall about 17 metres long was also constructed from the existing brick property boundary wall at the end of Jenkins Lane to Brook Lane.
The wall was built on a combination of retaining walls and piled sections. Structural steel was erected to hold the acoustic panels in place. There were two types of panels used, solid modular panels and transparent panels. Transparent panels were installed along the top to reduce overshadowing of properties. Each solid panel was painted and landscape planting was provided to improve the urban design and visual setting. Other associated work included utility adjustments, drainage improvements, vegetation and tree removal, landscape planting, fence erection, rock cutting, ground anchor and rock-bolt installation, guard rail installation and the installation of a maintenance access path.
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