Project locations
Port Arthur Historic Site
The Port Arthur Historic Site is the central location for the project and the heart of the area’s water and sewage system.
It contains the existing water treatment plant and sewage treatment facilities that support daily operations at the site, including visitors, staff, and nearby properties. As a World Heritage–listed place, the site is managed with a strong focus on protecting cultural heritage, landscapes, and the natural environment.
Works at the Historic Site involve upgrading the existing water treatment plant and replacing the current sewage treatment system. These works are significant and essential to the ongoing operation of the site. They are designed to improve reliability, performance, and capacity, while being carefully planned and delivered to minimise impacts on historic buildings, archaeological values, and sensitive plants and animals.
Garden Point
Garden Point forms part of the treated water supply network servicing Port Arthur.
The area includes key pipelines and water storage tanks that support nearby accommodation, services, and site operations.
Works at Garden Point involve upgrading the treated water pipeline that connects the water treatment plant to the storage tanks. The upgraded pipeline will improve system performance and resilience while following the existing road and land corridor.
Stewarts Bay
Stewarts Bay includes key sewage infrastructure that supports nearby accommodation and residential areas and forms an essential link in the wider Port Arthur sewage network.
This infrastructure currently includes a pump station and underground pipelines that transfer wastewater through the system.
Works at Stewarts Bay involve constructing a new sewage rising main to connect the existing pump station to the sewage treatment system at the Port Arthur Historic Site. This is a significant piece of enabling infrastructure that is critical to the overall performance of the system. The works include connecting existing private pump stations and are being carefully planned to manage impacts on surrounding land and waterways, while minimising disruption in the area.
UPPER & LOWER DAMS
The Upper and Lower Dams, located along Nubeena Road, are the primary raw water sources for the Port Arthur system and form the starting point of the entire water supply network.
Water from these dams is transferred to the water treatment plant before being supplied across the area to support day‑to‑day operations, residents, and visitors.
Works in this area involve replacing the existing raw water pipeline that connects the dams to the treatment plant. This is a critical upgrade that underpins the reliability of the whole system. The new pipeline is designed to strengthen water security, improve performance, and increase resilience, while making use of the established water supply corridor.
MCGINnIS DAM
McGinnis Dam is a raw water source located to the north‑west of the Port Arthur Historic Site.
While it is not currently connected to the system, it has been identified as an important potential water source to support the long‑term resilience and capacity of the broader water supply network.
At this stage, work at McGinnis Dam is limited to a feasibility study and design investigations for possible future provision. This work is focused on understanding how the dam could be integrated into the system if required, ensuring informed planning and flexibility to respond to future demand and changing conditions.
