Webb Dock and Mcgraw Wharf Upgrade, Burnie TAS

Client: McConnell Dowell

Consulting Engineers: Jacobs

Project Value: $650,000

Asset Owners: Tasports and Toll

Scope of works:

• Design and construct
• Cavity bags for cavities located under the precast concrete wharf structure
• Scour mattresses for toe of ship load out wharf
• Remediation of 19 piles using Denso Seashield Marine 2000FD, piles averaging 15m in length
• Design, manufacture and install of scour solution, ScourTech
• Shipping schedule of the berth (TOLL Shipping Berth) – night works often required to maintain schedule
• Mobilisation to Burnie, Tasmania from Brisbane
• Provision of plant such as dive equipment, vessels, barges and pontoons
• Daily reporting to Client and adhering to their intensive site safety regime, including CMG’s internal daily reporting requirements

Product Specification:

• Total length of all piles was 259m, resulting in the use of 136 jackets
• Seven (7) scour mattresses 26m x 6m 450mm
• Twenty-seven (27) cavity bags in various sizes 1.5m x 2m x 450mm