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Mangaone River (Hawke's Bay)

From Wikipedia, the free encyclopedia

Mangaone River
The Mangaone River at Rissington in 1909
Map
EtymologyMaori meaning "sandy stream"
Native nameMangaone (Māori)
Location
CountryNew Zealand
RegionHawke's Bay
DistrictHastings District, New Zealand
SettlementsTe Pōhue, Rissington, Dartmoor
Physical characteristics
SourceTe Waka Range
 • locationKings Stream near Titiokura Summit
 • coordinates39°12′37″S 176°40′51″E / 39.21028°S 176.68083°E / -39.21028; 176.68083
 • elevation50 m (160 ft)
MouthTutaekuri River
 • location
Dartmoor, New Zealand
 • coordinates
39°28′55″S 176°42′10″E / 39.48194°S 176.70278°E / -39.48194; 176.70278
 • elevation
50 m (160 ft)
Length51 km (32 mi)
Basin features
ProgressionKings Stream → Mangaone RiverTutaekuri River
River systemTutaekuri River

The Mangaone River is a river of the Hawke's Bay region of New Zealand's North Island. Its source is numerous streams draining the slopes of the Te Waka Range in the Rukumoana Forest area. The river flows southeast then south through rugged hill country until it meets the Tutaekuri River. For most of its course it is deeply incised[1] in the tephra, ignimbrite and lapilli volcanic rocks, which are a bit over 30,000 years old. The deep valleys are partly due to the soft rocks and partly to the rapid rise of the Mohaka Fault, at over 3 mm (0.12 in) a year.[2]

Totara was being felled along the river in the 1860s.[3][4][5] The river suffers from pollution by nitrogen and phosphorus.[6]

After Cyclone Gabrielle in February 2023, Rissington bridge was replaced by a 43 m (141 ft) long Bailey bridge on 31 March 2023[7] and Dartmoor bridge on 5 April 2023.[8] They are the only bridges over the river.[9]

See also

References

  1. ^ "Mangaone River, Hawke's Bay". NZ Topo Map. Retrieved 7 March 2022.
  2. ^ Hammond, Andrew Peter (1997). "Late quaternary landscape evolution of western Hawke's Bay, North Island, New Zealand" (PDF).
  3. ^ "HAWKE'S BAY HERALD". paperspast.natlib.govt.nz. 17 March 1860. Retrieved 8 March 2022.
  4. ^ "Local Intelligence. HAWKE'S BAY HERALD". paperspast.natlib.govt.nz. 3 January 1863. Retrieved 7 March 2022.
  5. ^ "HAWKE'S BAY HERALD". paperspast.natlib.govt.nz. 16 July 1864. Retrieved 9 March 2022.
  6. ^ "Mangaone Rv at Rissington GStn River Quality". Land, Air, Water Aotearoa (LAWA). Retrieved 7 March 2022.
  7. ^ "Rissington reconnected by Bailey bridge". Downer NZ Site. 5 April 2023. Retrieved 11 December 2023.
  8. ^ "Bridge Information". www.hastingsdc.govt.nz. Retrieved 11 December 2023.
  9. ^ "Mangaone River, Hawke's Bay". NZ Topo Map. Retrieved 11 December 2023.

"Place name detail: Mangaone River". New Zealand Gazetteer. New Zealand Geographic Board. Retrieved 24 January 2011.


This page was last edited on 17 February 2024, at 17:15
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