High Quality Content by WIKIPEDIA articles! Grafton Bridge is a road bridge spanning Grafton Gully in Auckland City, New Zealand. Built of reinforced concrete in 1910, it connects the Auckland CBD with the Grafton suburb. Grafton Bridge spans about 97.6 metres (320 feet), rises 25.6 metres (84 feet) above the abutments and to a height of around 43 metres (142 feet) over the Grafton Gully.