Mr Broad, the inaugural chief executive of Infrastructure NSW, has resigned from his position and is expected to take up the top job with Snowy Hydro, pending formal approval of his appointment.

Mr Greiner, the former premier and Infrastructure NSW (INSW) chairman, will stand down in July.

‘‘In February this year [Mr Greiner] advised me that with the delivery of the first fully funded five year infrastructure plan in next month’s budget and as INSW matured into a new role it was a natural time for it to transition to a new leadership,’’ Mr O’Farrell told parliament.

Mr O’Farrell said he would recommend to cabinet that Graham Bradley, the former head of the Business Council of Australia, replace Mr Greiner.

Former Victorian secretary of transport Jim Betts has been appointed as interim chief executive.

‘‘Paul’s been a loyal servant of this government and a rare individual who forewent a private sector salary to contribute his bit to fix NSW,’’ Mr O’Farrell said.

‘‘However in his new role, his skills won’t be lost to this government or the Victorian or Federal governments.’’

Upon its election two years ago, the government established Infrastructure NSW to provide independent advice on infrastructure priorities and formulate a 20-year infrastructure strategy for the state, along with shorter term plans.

However, the outspoken pair have not refrained from publicly disagreeing with the government about project priorities.

Mr Broad is also the chairman of the Hunter Development Corporation.