Wanneroo-Ocean Reef Road Relocation Project
ATCO GAS | Western Australia
Overview
The ATCO Gas Wanneroo-Ocean Reef Road Relocation Project required the relocation of approximately 250m x DN100 CL150 carbon steel, 500m x DN150 CL150 carbon steel gas pipelines, approximately 500m of DN160 PVC gas pipeline and relocation of a High-Pressure Regulator pit.
Enscope provided detailed design and construction site support services to complete the Project in conjunction with ATCO Gas.
Project facts
SCOPE
- Construction of approximately 250m x DN100 CL150 carbon steel, 500m x DN150 CL150 carbon steel gas pipelines, approximately 500m of DN160 PVC gas pipeline and fabrication and installation of a new High-Pressure Regulator pit
- 3 x HDD installation sections, 2 of which were under trafficable roads
- 2 x Hot Tap tie-ins to ensure uninterrupted gas supply
- 2 x Stopple isolations to allow for safe disconnection and abandonment of redundant pipeline sections
CLIENT
- ATCO Gas
LOCATION
- Pearsall, Western Australia
DATES
- Aug 2019 to early 2020
ROLES & SERVICES
- Dedicated Site Engineering Resource
- Design and project engineering
- Construction technical support
KEY CHALLENGES
- Restricted working space within congested road reserves and multiple utilities re-aligning assets within a restricted common corridor.
- SIMOPS management during parallel construction of gas pipelines, road modifications (including regular traffic alignment changes) and third party asset modifications
- Maintaining 100% pipeline operation during all phases of the project works
MAJOR ACHIEVEMENTS
- Safe and timely delivery of the modifications without gas supply interruption
- Decommissioning and abandonment of existing pipeline assets clashing with reduced road levels and piling locations so as to allow the road modification works to continue safely as planned
