He was reluctant to project a timetable for the return of Bay or Pelfrey.

WSJ: Sign of Summer: Mets Going on DL

That can slow a project's timetable considerably, but agency officials over the years have maintained the approach gives them deeper understanding of potential design weaknesses and how to respond when failures occur.

WSJ: SpaceX Acts Fast for New Launch

But it was understood the contingency fund was meant to cover cost overruns, essential in a project with a fixed timetable, not lack of private money.

BBC: Crunch continues to hit 2012 fund

But he added that government believed Crossrail funding decision was "an appropriate course of action to deliver a very complex and unique infrastructure project within the delivery timetable".

BBC: Taxpayers pay ?1bn to fund Crossrail rolling stock

Deputies agreed to a timetable for when new capital project budgets, during 2014 to 2017, would be discussed.

BBC: Guernsey mortgage interest relief to remain unchanged

Centrica said "the project costs in new nuclear have increased and the construction timetable has extended".

BBC: Centrica pulls out of new UK nuclear projects

The project is supported in principle by Labour, but it has warned about its timetable slipping.

BBC: HS2: High-speed rail route phase two details announced