This very unique design-and-construct project comprised the demolition of existing wharf facilities and the concurrent construction of five new commuter ferry wharves across Sydney Harbour at Cremorne Point, Balmain East, Pyrmont Bay, Sydney Olympic Park and Meadowbank.  Driven by ageing infrastructure and insufficient disability standards for accessible public transport, the builder developed solutions that significantly improved maritime safety, commuter safety and customer experience.  Each wharf features a pontoon and 18m-long gangway, sized and oriented to accommodate site-specific maritime conditions.  The design places commuters close to the ferry, minimising embarking and disembarking time and providing waiting areas with balanced protection from the elements.  The building process required three distinct stages:-  •    Procurement and preparation of long lead items.   •    Off-site works on a separate site on Glebe Island.   •    On-site works of pile installation, concrete bridge works and pontoon and gangway installations.  There was an emphasis on pre-fabrication of components including pre-cast concrete headstocks, pre-cast deck planks and pre-fabrication of the entire gangway ramp and pre-fabrication of the pontoon and fit off at an off-site facility prior to the elements being floated and installed onsite and final fit off being carried out.  The builder addressed many construction challenges which required traditional construction processes, procedures, worker amenities and safety to be modified to suit the site conditions of building over tidal water, and the associated environmental controls and supervision of the building process concurrently on five different sites. All site deliveries were by water and crane lifting requirements were carried out by floating barge cranes subject to the tidal conditions, which required some night works carried out in consultation with local residents and council.