The
State Rail Authority engaged Codelfa Construction under a contract for services to excavate tunnels in the
Eastern Suburbs allowing for the development of the
Eastern Suburbs railway line. The works were to include "the excavation of two single track tunnels commencing at
Edgecliff and running through
Woollahra to
Bondi Junction, an open cut excavation at the site of the
Woollahra station, and an underground excavation at the site of the
Bondi Junction station." supposedly providing crown immunity. within the contract, the parties started
arbitration proceedings in 1976 to establish whether Codelfa Construction could recover the additional costs by reason of an
implied term or alternatively if the contract was
frustrated to recover the reasonable value of the services provided (
quantum meruit). As the arbitration proceedings had no
jurisdiction with regard to frustration of the contract, they dealt principally with the issue of an implied term in the contract. The arbitrator found that a term could be implied into the contract to the effect that the deadline could be extended if workable hours varied. Both parties issued summons in the Supreme Court of NSW to reach a determination on a number of questions raised in the proceedings. Codelfa Construction alleged that the contract had been frustrated and further alleged that an implied provision of the contract, to pay a reasonable sum for work performed, had not been met. The State Rail Authority's allegations were to the effect that Codelfa Construction was bound to complete the works. Following the arbitrator's decision, a case was commenced in the Supreme Court of New South Wales. In his judgment Justice
Ash found that the contract had not been frustrated, instead he extended the implied term found by the arbitrator to also account for the understanding that work's could not continue where an injunction was granted. On appeal, Justices
Reynolds,
Glass and
Samuels of the
Court of Appeal varied Justice Ash's implied term but reached the same conclusion that an implied term could be found in the contract but that the contract was not frustrated. Codelfa Construction then appealed to the
High Court challenging the finding regarding the action in frustration. The State Rail Authority cross-appealed on a number of grounds centrally challenging the court's assertion that a term could be implied into the contract. == The High Court decision ==