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Ngaruroro River

The Ngaruroro River is located in the eastern North Island of New Zealand. It runs for a total of 164 kilometres southeast from the Kaweka Range, Kaimanawa Range and Ruahine Range and then east before emptying into Hawke Bay roughly halfway between the cities of Napier and Hastings, near the town of Clive (drainage area 2,000 square kilometres (770 sq mi) [1] above Tutaekuri River confluence). About 40% of the catchment is pasture, and 55% native forest.[2] The meaning of Ngaruroro is obscure.[3]

Ngaruroro River
Ngaruroro River in the Kaweka Range
Ngaruroro river system
Native nameNgaruroro (Māori)
Location
CountryNew Zealand
RegionHawkes Bay
Physical characteristics
SourceKaimanawa Range
MouthHawke Bay
 • coordinates
39°34′S 176°56′E / 39.567°S 176.933°E / -39.567; 176.933
 • elevation
Sea level
Length164 kilometres (102 mi)

Course edit

The upper Ngaruroro drains the Kaweka Forest Park and it is used for trout fishing (mostly rainbow),[4] rafting, tramping and deer hunting.

The river is mostly a single-thread channel down to Whanawhana (45 kilometres (28 mi) from the coast), flowing through a greywacke rock gorge. Below Whanawhana, the river opens to wide braided channel[5] and is joined by the Maraekakaho River. The Ngaruroro shares a river mouth with the Tutaekuri, Clive River and Muddy Creek. The meeting of these rivers forms the Waitangi Estuary.[6]

Aquifer edit

The Ngaruroro River recharges freshwater to the Heretaunga groundwater aquifer (in the order of four cubic metres per second (140 cu ft/s)[3]). This aquifer feeds several streams in the area (e.g. Raupare, Irongate), in addition to pumping that supports extensive orchards of the Heretaunga Plains. Eventually the aquifer discharges to the sea in submarine springs some 20 kilometres (12 mi) off the coast.[7]

Flooding edit

The Ngaruroro is one of several rivers that helped form the alluvial Heretaunga Plains at the south end of the coast of Hawke Bay. The course of the Ngaruroro has changed several times, originally flowing down what is now the Clive River. It changed to much of its present course in 1867 during a major flood. In 1969, the bottom four kilometres (2.5 mi) of river was diverted more directly to the coast (near Pakowhai Road) in an effort to reduce flooding. The river is now contained within flood banks in these lower reaches from Fernhill, Hawke's Bay to the mouth of the river. The Karamu and Clive remain as rivers, but drain a smaller catchment.

The river breached its flood banks during Cyclone Gabrielle in February 2023, inundating a large area of the Heretaunga Plains. The settlements of Omahu, Waiohiki and Pakowhai were severely affected with dozens of homes being destroyed. Large areas of orchards and vineyards were ruined and homes in Taradale were evacuated.[8] Bridges 216[9] and 217 (Waitangi Washout) on the Palmerston North–Gisborne railway line[10] and Waitangi Park Bridge on SH51 were damaged.[11]

References edit

  1. ^ . koordinates.com. Archived from the original on 20 February 2013. Retrieved 23 July 2016.
  2. ^ . Archived from the original on 20 February 2013. Retrieved 23 July 2016.
  3. ^ a b "Ngaruroro River – Te Ara Encyclopedia of New Zealand". teara.govt.nz. Retrieved 23 July 2016.
  4. ^ (PDF). Archived from the original (PDF) on 4 March 2016. Retrieved 22 July 2012.{{cite web}}: CS1 maint: archived copy as title (link)
  5. ^ (PDF). Archived from the original (PDF) on 8 February 2013. Retrieved 19 July 2012.{{cite web}}: CS1 maint: archived copy as title (link)
  6. ^ . Archived from the original on 9 February 2013. Retrieved 19 July 2012.
  7. ^ Grant, P.J. 1965. The groundwaters of the Heretaunga Plains - the Ngaruroro River as a major recharge source. Journal of Hydrology (N.Z.) Vol. 4:65-80; http://www.hydrologynz.org.nz/downloads/JoHNZ_1965_v4_2_Grant.pdf 7 February 2013 at the Wayback Machine
  8. ^ "Cyclone Gabrielle: Rural Hawke's Bay residents scramble onto roofs to avoid flooding". Radio New Zealand.
  9. ^ "Kiwirail - Bridge 216 over Ngaruroro River". www.facebook.com. Retrieved 22 February 2023.
  10. ^ "Kiwirail - Bridge 217, north of Clive". www.facebook.com. Retrieved 22 February 2023.
  11. ^ "Traffic map". www.journeys.nzta.govt.nz. Retrieved 22 February 2023.

ngaruroro, river, located, eastern, north, island, zealand, runs, total, kilometres, southeast, from, kaweka, range, kaimanawa, range, ruahine, range, then, east, before, emptying, into, hawke, roughly, halfway, between, cities, napier, hastings, near, town, c. The Ngaruroro River is located in the eastern North Island of New Zealand It runs for a total of 164 kilometres southeast from the Kaweka Range Kaimanawa Range and Ruahine Range and then east before emptying into Hawke Bay roughly halfway between the cities of Napier and Hastings near the town of Clive drainage area 2 000 square kilometres 770 sq mi 1 above Tutaekuri River confluence About 40 of the catchment is pasture and 55 native forest 2 The meaning of Ngaruroro is obscure 3 Ngaruroro RiverNgaruroro River in the Kaweka RangeNgaruroro river systemNative nameNgaruroro Maori LocationCountryNew ZealandRegionHawkes BayPhysical characteristicsSourceKaimanawa RangeMouthHawke Bay coordinates39 34 S 176 56 E 39 567 S 176 933 E 39 567 176 933 elevationSea levelLength164 kilometres 102 mi Contents 1 Course 1 1 Aquifer 2 Flooding 3 ReferencesCourse editThe upper Ngaruroro drains the Kaweka Forest Park and it is used for trout fishing mostly rainbow 4 rafting tramping and deer hunting The river is mostly a single thread channel down to Whanawhana 45 kilometres 28 mi from the coast flowing through a greywacke rock gorge Below Whanawhana the river opens to wide braided channel 5 and is joined by the Maraekakaho River The Ngaruroro shares a river mouth with the Tutaekuri Clive River and Muddy Creek The meeting of these rivers forms the Waitangi Estuary 6 Aquifer edit The Ngaruroro River recharges freshwater to the Heretaunga groundwater aquifer in the order of four cubic metres per second 140 cu ft s 3 This aquifer feeds several streams in the area e g Raupare Irongate in addition to pumping that supports extensive orchards of the Heretaunga Plains Eventually the aquifer discharges to the sea in submarine springs some 20 kilometres 12 mi off the coast 7 Flooding editThe Ngaruroro is one of several rivers that helped form the alluvial Heretaunga Plains at the south end of the coast of Hawke Bay The course of the Ngaruroro has changed several times originally flowing down what is now the Clive River It changed to much of its present course in 1867 during a major flood In 1969 the bottom four kilometres 2 5 mi of river was diverted more directly to the coast near Pakowhai Road in an effort to reduce flooding The river is now contained within flood banks in these lower reaches from Fernhill Hawke s Bay to the mouth of the river The Karamu and Clive remain as rivers but drain a smaller catchment The river breached its flood banks during Cyclone Gabrielle in February 2023 inundating a large area of the Heretaunga Plains The settlements of Omahu Waiohiki and Pakowhai were severely affected with dozens of homes being destroyed Large areas of orchards and vineyards were ruined and homes in Taradale were evacuated 8 Bridges 216 9 and 217 Waitangi Washout on the Palmerston North Gisborne railway line 10 and Waitangi Park Bridge on SH51 were damaged 11 References edit Browser not supported Koordinates koordinates com Archived from the original on 20 February 2013 Retrieved 23 July 2016 REC New Zealand Ministry for the Environment MfE New Zealand GIS Map Data Koordinates Archived from the original on 20 February 2013 Retrieved 23 July 2016 a b Ngaruroro River Te Ara Encyclopedia of New Zealand teara govt nz Retrieved 23 July 2016 Archived copy PDF Archived from the original PDF on 4 March 2016 Retrieved 22 July 2012 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link Archived copy PDF Archived from the original PDF on 8 February 2013 Retrieved 19 July 2012 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link Waitangi Estuary Archived from the original on 9 February 2013 Retrieved 19 July 2012 Grant P J 1965 The groundwaters of the Heretaunga Plains the Ngaruroro River as a major recharge source Journal of Hydrology N Z Vol 4 65 80 http www hydrologynz org nz downloads JoHNZ 1965 v4 2 Grant pdf Archived 7 February 2013 at the Wayback Machine Cyclone Gabrielle Rural Hawke s Bay residents scramble onto roofs to avoid flooding Radio New Zealand Kiwirail Bridge 216 over Ngaruroro River www facebook com Retrieved 22 February 2023 Kiwirail Bridge 217 north of Clive www facebook com Retrieved 22 February 2023 Traffic map www journeys nzta govt nz Retrieved 22 February 2023 nbsp Wikimedia Commons has media related to Ngaruroro River Retrieved from https en wikipedia org w index php title Ngaruroro River amp oldid 1158214831, wikipedia, wiki, book, books, library,

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