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Mercury Energy Well Pad & Culvert Works

Supporting New Zealand’s renewable energy infrastructure

The Mercury Energy Well Pad and Culvert Works project in Kawerau, Bay of Plenty, involved the construction of new well pads and drainage infrastructure to support Mercury’s geothermal steam drilling programme.

Crossroads Civil was responsible for delivering all earthworks, foundation, and culvert installation in accordance with strict engineering, safety, and environmental standards.

Project details

  • Location: Kawerau, Bay of Plenty

  • Duration: 2.5 years

  • Client / Principal: Mercury Energy

  • Category: Civil Works – Industrial Infrastructure

Scope of Work

Well Pads

  • Site clearing, topsoil stripping, and subgrade preparation

  • Excavation and compaction to achieve engineered design levels

  • Base-layer installation using approved materials

  • Surface finishing for heavy-equipment operation

  • Drainage grading to ensure consistent runoff

Culverts

  • Trenching and placement of culvert pipes with correct bedding and alignment

  • Backfilling and compaction to prevent settlement

  • Construction of headwalls and wingwalls where required

  • Hydraulic testing to confirm flow capacity and structural integrity

Outcome

The project was successfully completed on schedule, delivering robust, high-performance infrastructure to support Mercury Energy’s geothermal operations.
Working alongside Mercury’s project managers, Crossroads Civil demonstrated strong collaboration, compliance, and professionalism, ensuring all work met the highest health, safety, and environmental expectations.