$576m new Bridgewater Bridge in TAS reaches new milestone

Monica Gameng   |   July 16, 2020

A new Bridgewater river crossing in Tasmania is one step closer to becoming a reality with the release of the approved design requirements for the $576 million new Bridgewater Bridge project – the State’s largest investment in a single transport infrastructure project to date.

This significant transport infrastructure project is part of the $1.43 billion Hobart City Deal that was signed last year. You can read more about it here.

“This is a major project that will benefit Tasmanians for generations, and it is vital we get it right.

“The Bridgewater Bridge is a critical part of the transport and freight link between the state’s north and south, and the project will support growth and commercial development in Hobart’s outer northern suburbs,” Minister for Infrastructure and Transport Michael Ferguson said.

The eight design requirements released were determined through community consultation as well as an engagement with Infrastructure Australia.

The approved design requirements are:

  • The project will provide a new river crossing between the Brooker Highway and Midland Highway, including connections to the Lyell Highway
  • The new bridge will have a minimum design speed of 80km/h
  • The new bridge will include two lanes in each direction
  • The project will include the grade separation of the Lyell Highway Junction at Granton and Black Snake Lane at Granton
  • The new bridge will have a minimum airdraft clearance consistent with the navigable clearance under the Bowen Bridge
  • The new bridge will include a shared path for pedestrians and cyclists
  • The new bridge will include safety screens and barriers
  • The new bridge will not preclude the future use of the existing rail corridor

In addition, two high-level concept designs have also been released.

The first design option will include the construction of a new two-lane bridge and the replacement of the existing bridge with a new bridge to provide two lanes in each direction.

Option1_CROP_REV1Option 1 (source: Transport Services)

The second design option for the new bridge will include the construction of a four-lane bridge with two lanes in each direction.

Option2_CROP_REV1Option 2 (source: Transport Services)

“It was previously thought the design requirements may need to be substantially reduced in order to achieve the project budget, however, a range of possible bridge designs are capable of meeting the requirements and two high-level concept designs have been released,” Minister Ferguson said.

In the coming weeks, an Early Contractor involvement (ECI) process will commence together with the Request for Proposal (RFP) phase that will select two tenderers to move into the competitive design stage to determine a final design for the new Bridgewater Bridge with the best value for the community.

“Involving contractors in the early stages of the project design allows for closer involvement in the development of the designs, providing opportunities for industry innovation and construction efficiencies,” Minister Ferguson said.

Geotechnical, environmental and heritage surveys have already commenced, and these works must be completed before the final design and alignment are confirmed.

Major construction works on the new Bridgewater Bridge is anticipated to begin in 2022 and completed by the end of 2024.

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Source: Tasmanian Government – Premier of Tasmania; Tasmanian Government – Transport Services

Monica Gameng
As Felix's Marketing Assistant since 2015, Monica is responsible for researching and sharing new and progressing projects within the construction and mining sectors in Australia. It's no surprise that Monica has her finger on the pulse of Australian major projects given she has produced more than 1,000 posts. She truly is an industry expert.
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