A century-old wooden bridge full of holes that carries masses of the country's potatoes and carrots is jeopardising truckers' safety and farmers' livelihoods. An engineer's report found the bridge has broken running boards and broken cross beams that rate as "severe" defects. Photo: Supplied But government funding changes make it less certain the local council can get the bridge, on a back road on the slopes of Mt Ruapehu, replaced. Between a 10th and one-fifth of the washed carrots and potatoes used in the North Island come across the one-lane timber Mangateitei rail overbridge near Ohakune. There is no other public road out from the farms.