[PROJECTS]

Eastwood Estate
(Stages 1 – 6)

Client

McCloy Group

Location

Goonellabah, New South Wales

Value

$15m

Duration

June 2019 – October 2022

Status

Complete

Eastwood Estate is a residential subdivision based in Goonellabah, New South Wales, in close proximity to Southern Cross University and Lismore Base Hospital.

The project works consisted of:

  • bulk earthworks and civil works across six construction stages
  • 800 square metres of SEE Civil’s RockBlock retaining wall system including design, manufacture, construction, and certification
  • native landscaping and feature works
  • construction of a new sewer pump station
  • management of vegetation retention and clearing
  • installation of stormwater infrastructure
  • pavement construction
  • water reticulation
  • over 4,000 square metres of boulder retaining walls.
Project Scope

  • 800 square metres of SEE Civil’s designed, manufactured and certified RockBlock retaining wall system.
  • Over 4,000 square metres of intermittent retaining walls with rock sourced from on-site excavations.
  • 30,000 cubic metres of bulk earthworks.
  • 20,000 square metres of asphalt road construction.
  • Over 10 kilometres of stormwater, sewer, and water main construction.
  • Supply, install, and provide certification of electrical and National Broadband Network (NBN) infrastructure including substations.
  • Supply and install sewer pump station and valve chambers.
  • Landscape works, entry features and a park.
Key Construction Elements

  • Eastwood is a steep site with natural springs occurring throughout the site. This posed numerous challenges that were overcome through collaborative approaches with Geotechnical Engineers to mitigate water infiltration to services, slip hazards within the bulk earthworks, and overall global stability.
  • A large amount of floating basalt rock was excavated during the bulk earthworks that were separated and utilised for headwall and outlet protection, boulder retaining walls, and sediment control bunds.
Accolades and Innovations

  • The client required 800m2 of retaining wall to be constructed. During the tender phase, SEE Civil nominated a two-tier corncrib type wall. SEE Civil’s RockBlock wall was proposed, and with the unique design and live load capability, we were able to construct the wall in a single tier, giving more useable land for the client. This also delivered a quicker and more cost-effective outcome to delivery.
  • SEE Civil worked closely with Lismore City Council to approve cast in-situ sewer and stormwater manholes that had previously not been constructed in the area. SEE Civil was praised for the workmanship of the structures in the on-maintenance inspection.

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