IPWEAQ 2021 Excellence Awards Commemorative Book

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PROJECTS $2 MILLION TO $5 MILLION NOMINEES

TUMMAVILLE ROAD BRIDGE REPLACEMENT Toowoomba Regional Council The new Tummaville Road Bridge crosses the Condamine River (North Branch) and provides connectivity between Pittsworth and the surrounding areas. The old 5 span timber bridge had reached the end of its useful life and was closed to traffic for more than a year, prior to its replacement. The new Tummaville Road Bridge is a 2 span 2-lane bridge, 8.5m kerb to kerb, with overall length of 38m and a clear height of up to 3m above standing water level. The new bridge has been designed to current Australian Standards with a design life of 100 years. The bridge has an improved flood immunity of Q50. The bridge project management and construction were both self performed by Council teams, using specialist demolition and piling contractors. Otherwise, the bridge was constructed using Council day labour. The bridge is constructed on 21 500mm diameter hexagonal prestressed concrete piles driven to an average depth of 20m. These support 30 transversely stressed deck units, 19m long and weighing 19 tonnes each. The bridge abutments and pier have been designed with a platform to jack up the deck units for laminated elastomeric bearing replacement. The outer deck units include precast castellated kerbs to accommodate use of wide agricultural machinery which provide a safety barrier for traffic but have a lower maintenance cost compared to bridge rail on low volume rural roads. The $2.97 million bridge replacement was jointly funded by the Council and Australian Government Bridges Renewal Program, and provides improved connectivity for local agricultural production.

PAROO SHIRE COUNCIL DRFA PROJECT Paroo Shire Council / Proterra Group Proterra Group were engaged by Paroo Shire Council to scope and deliver their most recent DRFA Flood Restoration event. This was the first event that Council had experienced for many years and chose to use a consultant based approach due to lack of in house resources and recent experience in DRFA Event Management. To deliver the project successfully it was essential that works were delivered using local Contractors and Council Crews to not only bring the infrastructure back to pre-event levels, but maximise the economic gains for the local community who had experienced years of drought and low economic activity in the region. Proterra Group assembled a Project Team inclusive of Project Manager, Site Inspectors and Contract Administrator to deliver the works with a total approved value of $3.3M. This was a difficult project to deliver as Council lacked experience Engineering staff at the time, and there was a severe lack of experienced local contractors to help deliver works. Over the course of the project Proterra Group were able to liaise successfully with Council and local suppliers and subcontractors to build 100% Local teams to deliver the works. This ended up being a combination of Council works crews, and full contract works crews. The project was delivered successfully on time and in budget with a lot of learnings and local capacity building along the way.

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