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At Georges Head, timber bench seating, perimeterlighting and safety grilles were installed at the lookoutand the area landscaped. Replica gun carriages werebuilt and installed in the batteries. Work on stormwaterretention and stonework was largely completed.The Chowder Bay wharf, tidal platform and storebuilding were repaired. The fitout for a second coffeebar was completed and work continues on the fitoutfor a restaurant in the Submarine Miners’ Depot.Preliminary investigations were undertaken into the useof the cable pit by one of the tenants. Planningcommenced on refurbishment of the former Sergeants’Mess and barracks building as a function centre andan outdoor educational organisation respectively. AtMiddle Head, design options for the Chowder Bayintersection and parking area were developed.Woolwich DockThe site of Woolwich Dock contains parkland, sheds,hardstand, workshops and the former dry dock.The Trust uses the site as an embarkation point forjourneys to and from Cockatoo Island by staff,contractors and consultants.During the year, electrical, water supply and sewageservices were upgraded. These works preceded thepreparation of a development application to HuntersHill Council for the realignment of the entry road toWoolwich Dock and associated carpark. Tenderswere called for the construction of a lookout inparkland above the dock cutting and workcommenced. Remediation of the Horse Paddock,the lookout and Goat Paddock was carried out andinvolved the removal of low level contamination andcapping. This project continues. Engineeringconsultants assessed damage to the seawall of theHorse Paddock and repairs required. The design ofwharf and docking facilities for the proposed functioncentre on the eastern apron of Woolwich Dock werecompleted. Tenders have been called for the project.Cockatoo IslandCockatoo Island is the largest island in SydneyHarbour and greatly modified through its uses aspenal settlement and maritime industrial site. Theisland contains remnants of an imperial convictprison, two dry docks, wharves, slipways, maritimebuildings, residences, a powerhouse, cranes, watertowers and tunnels.Photo: Hanging swamp on North HeadThe program of repair works on Cockatoo Islandcontinued during the year including joinery repairs to anumber of buildings and the removal from some 15buildings of asbestos cement roofing and lead paintedcorroded metal. The refurbishment of the Mould Loftcontinued throughout the year and includedconservation, new structural work, provision of servicesand the fitout of a new space for a café. Contractdocumentation for the conservation and adaptive reuseof the Drawing Office was completed in preparation fora call for tenders. The conservation of weatherboardbuildings on the southern apron for adaptive reuse asoffice accommodation was completed. Edwardianduplex houses on the island’s plateau were conservedand upgraded for residential use.The Muster Station at the Parramatta Wharf entrywas refurbished as a visitor orientation centre,booking office and café. Other work commenced atthe entry precinct included the replacement of sewer,water, stormwater, data and power services and theconstruction of access ramps and pavements.Construction commenced on the northern aproncampground and park. Contract documentation forthe provision of a new sewerage treatment plant forthe island was prepared and tenders were called forthe repair of sandstone seawalls at the north easternedge of the island. Geotechnical works commencedon the stabilisation of cliff faces and new cliff topsafety fencing was installed. Contract documentationwas prepared and tenders called for the constructionof a cliff top walk including cantilevered walkway andelevated turbine shed component.A number of the island’s marine access facilities wereupgraded. The original pontoon of the camber wharfwas reinstated to facilitate ferry access to the island.The roll on roll off ramp was repaired to assist bargeaccess. The work included the pavement of theaccess road and construction of seawalls. The timberbay wharf was upgraded for the berthing of 15 smallboats for tenants and contractors.A tender was let for heritage architectural servicesto prepare for the conservation of ‘Biloela’, thesandstone residence on the top of the island.A contract was let for the remediation of the upperplateau. Two gun carriages were constructed on theisland from recycled wharf timber and relocated tothe Georges Head gun emplacements.15 Annual Report 2006-07