Te Rata Bridge
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The Te Rata Bridge was a suspension bridge across the Retaruke River in the King Country, New Zealand. On 22 March 1994 two transoms (the supporting beams suspended from wire ropes running from side to side beneath the bridge) snapped causing the bridge to collapse while beekeeper Kenneth Richards was crossing in a laden light truck. Richards was killed when the truck fell 30 metres into the river.
The bridge was built in 1986 for Keith and Margaret Berryman, the landowners, by members of the New Zealand Army to designs based upon calculations by Lieutenant John Armstrong. G. W. Butcher, a retired civil engineer, who reported on the collapse for the army concluded that the failure arose from "the decision to use two 300x75 beams bolted together for the transoms in place of a solid 300x150 member" and the lack of a "regular inspection and maintenance programme […] by the owners of the bridge".
The army withheld Butcher's report from the 1997 inquest into Richards' death and kept its contents secret until it was published illegally on the internet by the Berrymans' lawyer, Rob Moodie. The Berrymans claim that their fight against attempts by the Occupation Safety and Health department to prosecute them for Richards' death has led to bankruptcy and the loss of their farm.
The complete text of the Butcher report is held at Wikisource:Butcher report.
[edit] Earlier history of Te Rata bridges
The Berryman Bridge was the second suspension bridge to be the primary access to Te Rata. The earlier bridge, which collapsed around the 1980s, was a fearsome structure on the same site. In the slidgenz articles noted below, this first bridge is referred to as the Hayes Bridge. The Hayes bridge, said to be 100 ft above the water, is understood by the Ruslings, still resident in the valley, to have been built by the Tichner brothers, formerly sailors, around 1915-1916. The cables consisted of bunches of 52 strands of No. 8 wire, and endured the whole life of the bridge, a period of at least 66 years. When the bridge finally collapsed under the weight of a mob of sheep, the uprights on the house side gave way, allowing the anchors to fall away. Evan and Bob Hayes, who were moving the sheep, were fortunately not on the bridge when it collapsed, but most of the sheep were either killed from the fall, or drowned in the Retaruke.
