If it means getting the Army Corps of Engineers to lay a pontoon bridge, whatever, just get on with it.
This is just basic stuff: we know that the work will be funded eventually. The trick is getting it done NOW so that everything else can happen. Money will sort itself out later and, as Tim so eloquently points out:
Simply get the causeways and bridges back up, get the transportation system working, so that the citizenry are indeed able to work on that small scale.