page_title: Tangahoe River
section_title: Bridges
hierarchical_section_title: Tangahoe River / Bridges
caption_attribution_description: English: The road to the 1871 bridge is visible on the right
context_page_description: The Tangahoe River is a river of the Taranaki Region of New Zealand's North Island. It flows generally southwest from its origins in hill country to the east of Lake Rotorangi, reaching the Tasman Sea in the South Taranaki Bight 5 km southeast of Hawera.
context_section_description: Tangahoe Valley Rd crosses the river on a 24.2 m (79 ft) through arch bridge which replaced one destroyed by floods in 1937, the new bridge being 2.4 m (7.9 ft) above the highest recorded flood level. The road was surveyed in 1898, money had been spent by 1900 and the road needed repair after floods in 1903, when £500 was voted for a bridge. A bridge was built in 1920 and the road gradually extended up the valley, with money still being voted in 1924.
  Owhangai Rd crosses the river on a single lane bridge. The road was mentioned in 1877 and the bridge was old enough to need repairs by 1919. A new bridge was built in 1920.
  State Highway 3 crosses the river on a 65.5 m (215 ft) bridge. Until 1871 the route was via Manawapou Rd and the beach at low tide. A bridge was built in 1871 and replaced in 1887. In 1935 it was swept away by a flood on 22 February 1935 and temporarily replaced. Relief work to replace it and its winding route had already started in 1933 and was completed in 1936 at a cost of £6,000. It was widened from 6 m (20 ft) to 7.5 m (25 ft) in 2008. There were 7 crashes in the 4 years prior to widening.
  The New Plymouth railway crosses the river about a kilometre downstream from SH3, on a 9-span trestle bridge 67 m (220 ft) long, the centre span being 18 m (60 ft), and the 4 each side of 3.0 m (10 ft) to 12 m (40 ft). The smaller spans are on piles driven into the rock, but the centre piers are concrete 5.5 m (18 ft) deep. The bridge was of totara 24 m (80 ft) above the river, or 20 m (65 ft) above flood level. A tender was accepted for a rebuild in 1910.
caption: The road to the 1871 bridge is visible on the right
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