That reflects the fact that revenue earned "above rail" is always far lower than would be required to fully maintain the capital-intensive network.
However, the importance of maintaining a rail network for wider economic and national interest reasons means both the previous and present government accept KiwiRail will always make accounting losses.
The result for the half-year was achieved on revenue of $292.7m, 1.9 per cent down from the $298.3m recorded in the last six months of 2016, and reflecting the fact that the Kaikoura link was only restored in September 2017.
Operating expenses, at $277.4m, were 3.5 per cent lower than in the previous comparable period.
Ports revenue from KiwiRail's trucking and rail services was up 16 per cent on the half-year, which chairman Trevor Janes said was a "strong result" when placed against overall container volume growth of 7 per cent nationally in the same period.
Forestry revenues rose 8 per cent as the so-called 'wall of wood' from maturing plantation forests starts to come on-stream.
Dairy industry and coal volumes rose, contributing to a 6 per cent increase in bulk freight revenue.
Poor weather and "significant and unexpected" repair costs on the company's ageing South Island locomotive fleet contributed to a "messy" six months, Janes said.
KiwiRail was "working closely with the government on the urgent need for longer-term funding for the organisation, which is critical for efficient procurement, planning and safety".
The Interislander ferries showed a 12 per cent increase in commercial vehicle 'lane metres' as more freight had to travel by road while the rail outage persisted, while passenger revenue rose 7 per cent and yields on vehicle crossings improved.
Reidy said KiwiRail was targeting operating savings of $7m this year, building on $45m of productivity improvements in the last two years.
Announcements relating to the revival of some mothballed regional rail services are expected when the government unveils detail of its $1 billion a year regional economic development fund, in Gisborne, on Friday.