Bridge over Collie River

 

Latest news

The deck of the 224-metre bridge over the Collie River is taking shape, with the first and second concrete pours successfully completed during June.

Construction is on schedule. Key milestones achieved to date include finishing installation of all bridge piles and concrete pile caps. Upcoming works are centred on installing bridge beams, pouring concrete for the deck and finishing with an asphalt road surface. The bridge works will be completed with installation of bridge lighting and guardrails, which will then allow the Shires of Dardanup and Harvey to complete the approach roads.

The bridge consists of steel beams with a concrete deck on top. A different type of bridge launch method has been implemented and being used as a means to save cost and time. More information about the bridge launch and the latest works is available in our July newsletter.

Image: Collie River Bridge image small - July 2017.JPGImage: Collie River Bridge image small 2 - July 2017.JPGImage: Collie River Bridge image 3 - July 2017.JPG

 

Project objective

The bridge will provide a much needed connection between the Treendale and Kingston subdivisions in Australind, Millbridge Private Estate and the Parkridge Estate in Eaton, linking both Shires.

Millbridge and Treendale are two of the fastest growing areas in Western Australia and connecting the two areas is critical to the road network and interconnectivity of the Shires of Dardanup and Harvey.

As well as providing a key social connection, the bridge will offer essential access for emergency service vehicles and connect the commercial precincts of the two subdivisions.

 

Scope

The new bridge will be located 3 km north-east of the Eaton Fair Shopping Centre and approximately 1.5 km south of the Treendale Shopping Centre in the Shire of Harvey.

The project comprises of the following main components:

  • Two lane steel/concrete composite bridge structure, 224 metres long and 14.4 metres wide including bridge lighting and a pedestrian walkway on the western side.
  • The Shire of Harvey will extend The Boulevard to connect to the bridge, and construct a fauna / recreational path under the bridge.
  • The Shire of Dardanup will extend Eaton Drive to connect to the bridge, and construct a fauna / recreational path under the bridge.
  • Possum rope structures on the right and left hand side of the main Collie River channel to facilitate the movement of possums along the watercourse subsequent to the bridge construction.

Minimal impacts are expected on the road network given the bridge is a new connection.

 

Benefits

This new link will provide a direct connection and a third alternative route between the Shires, as well as:

  • Reduce the pressure on Forrest Highway and Old Coast Road and improve safety. (Old Coast Road's average daily traffic is currently close to full capacity).
  • Provide faster access for emergency service vehicles resulting in critical time savings.
  • Reduce travel time for private and commercial vehicles.
  • Reduce travel distance between the Millbridge and Treendale communities by approximately 10 km (residents currently travel via Forrest Highway).
  • Provide a link between the commercial precincts of the two subdivisions and Shires.
  • Improve road infrastructure to the growing light industrial area in Treendale.
  • Travel time and cost savings for road users travelling between Eaton and the Treendale shopping precinct.
  • An opportunity for improved bus services with shorter travelling times.
  • A direct pedestrian and cycling link.

 

Publications

 

Environment

An Environmental Management Plan has been developed to manage potential impacts on issues including Western Ringtail Possum, water quality, acid sulphate soils management, topsoil and weed management.

 

Further information

Community queries can be directed to:

Carolyn Walker, Community Relations Consultant

Phone: 138 138

Email: carolyn.walker@mainroads.wa.gov.au

 

Contracting or supplier enquiries

Phone: 138 138

Email: enquiries@mainroads.wa.gov.au

 

Modified: 24 Jul 2017