 During the time the circuit deteriorated and finally closed, part of the main problem for its owners was that the main bridge from the island to the Australian mainland reportedly could not carry the heavy vehicles needed to resurface the circuit.This meant that the bitumen surface was a cold mix which easily broke up under the rigours of racing, instead of the standard hot mix which would have allowed a more durable surface.It would not be until the mid-1980s that the bridge would be rebuilt allowing the necessary equipment needed for resurfacing.