Emerald Park

Emerald Park is a 600 lot residential development in the City of Kwinana. In addition to standard earthworks, road works and servicing infrastructure within the development, TABEC also undertook the design and contract administration of a Type 40 Water Corporation waste water pumping station and the extension of a DN300 water main down Johnson Road.

TABEC’s role included all detailed engineering design, seeking Authority approvals, tendering and contract administration for the estate. There are various interfaces with neighbouring properties, reconstruction of roads under live traffic, Main Roads WA boundaries with noise attenuation requirements, a Department of Education school site and the Peel Main Drain.

Design works included the realignment, upgrade and reconstruction of approximately 1.5km of Johnson Road in an existing urban area with these works representing the final element in the estate development.

With the development abutting the western boundary of the Kwinana Freeway, noise studies confirmed the requirement for a significant noise wall along the development’s eastern boundary.  A proprietary precast wall unit was utilised to provide a combined retaining wall/noise wall up to about 4.0m in height, which varied from retaining 2m of freeway excavation to retaining nearly 2m of development lots, with integrated noise wall segments on top.

As part of the project scope, TABEC’s design work included converting the existing open drain located within the project boundary to a piped system. Along with detailed modelling of the surrounding subdivision and associated drainage infrastructure, significant modelling was undertaken to confirm the impact of subdivision drainage on the Peel Branch Drain and conversion to remove the impediment posed by the pre-existing open drain. This allowed development of the school site and POS area for handover to Department of Education and City of Kwinana respectively.