High Quality Content by WIKIPEDIA articles! Mooney Mooney Creek Bridge is a twin cantilever bridge that spans Mooney Mooney Creek in Brisbane Water National Park on the Central Coast of New South Wales as part of the Sydney-Newcastle Freeway. It is the highest road bridge in Australia as measured from the road bed to the water 75 m (246 ft) below. It was opened in December 1988 and is maintained by the Roads and Traffic Authority of New South Wales.