Mount Keith West Network Upgrade

Location

Wiluna, WA

Value

$5M – $10M ~

Client

SCEE Electrical

Completion Year

2025
Project Overview

TransAlta’s existing SCE North power system lacked capacity to support BHP’s planned process plant expansion at NMK and proposed green renewable energy additions. To address this, TransAlta constructed a new 132kV Gas Insulated Switchgear (GIS) substation at NMK, connecting to the existing NLN-NMK 132kV overhead line.

SCEE Electrical, as head contractor, engaged Westforce to complete all soil decontamination and civil construction works for the project.

Westforce delivered civil works across Areas 20 and 30 in
two stages, including:

  • Removal of asbestos-contaminated soil
  • Site clearing, preparation, and surveying
  • Bulk earthworks (cut/fill, compaction, grading)
  • Underground services and cable installation
  • Stormwater management and drainage systems
  • Access roads and hardstand areas
  • Earth grid, HV & LV cable trenching
  • Concrete construction (transformer bunds, switchroom foundations and pole foundations)
  • Directional drilling under existing roads with conduit
    installation
  • Perimeter fencing

Concrete: 530m ~ | Contaminated Soil: 285m ~ | Detailed Earthworks: 2000m2 ~ | Trenching: 580m ~ | Reinforcement: 40T ~ | Fencing: 183m | Precast Panels (Fire Wall): 3x6m

Location

Wiluna, WA

Value

$5M – $10M ~

Client

SCEE Electrical

Completion Year

2025
Project Overview

TransAlta’s existing SCE North power system lacked capacity to support BHP’s planned process plant expansion at NMK and proposed green renewable energy additions. To address this, TransAlta constructed a new 132kV Gas Insulated Switchgear (GIS) substation at NMK, connecting to the existing NLN-NMK 132kV overhead line.

SCEE Electrical, as head contractor, engaged Westforce to complete all soil decontamination and civil construction works for the project.

Westforce delivered civil works across Areas 20 and 30 in
two stages, including:

  • Removal of asbestos-contaminated soil
  • Site clearing, preparation, and surveying
  • Bulk earthworks (cut/fill, compaction, grading)
  • Underground services and cable installation
  • Stormwater management and drainage systems
  • Access roads and hardstand areas
  • Earth grid, HV & LV cable trenching
  • Concrete construction (transformer bunds, switchroom foundations and pole foundations)
  • Directional drilling under existing roads with conduit
    installation
  • Perimeter fencing

Concrete: 530m ~ | Contaminated Soil: 285m ~ | Detailed Earthworks: 2000m2 ~ | Trenching: 580m ~ | Reinforcement: 40T ~ | Fencing: 183m | Precast Panels (Fire Wall): 3x6m

Request Our Capability Statement

Name(Required)

Contact Us

Name(Required)

Careers

Express Your Interest

Name(Required)
Max. file size: 100 MB.
Max. file size: 100 MB.