Wanganui River

The Wanganui River is in the West Coast of the South Island of New Zealand. It flows northwest for 55 kilometres (34 mi) from its headwaters in the Southern Alps, entering the Tasman Sea near Lake Ianthe, 40 kilometres (25 mi) southwest of Hokitika.

After heavy rain in January 2013 the flooded river partially washed away the single-lane road bridge that carries State Highway 6, closing the only through road on the West Coast.[1]

Gravel buildup has gradually raised the riverbed, and in 2021 the West Coast Regional Council planned to elevate stopbanks by 1 m at a cost of $5.7 million to protect neighbouring farmland from flooding. Farmers protested the rates rise that would be needed to pay back this 30-year loan, and suggested the Department of Conservation should contribute.[2]

References

"Highway closed after bridge washout". The Press. 3 January 2013. Retrieved 3 January 2013.
Williams, Lois (20 September 2021). "Farmer calls out Doc over cost of flood protection". Hokitika Guardian. p. 3.

Landforms of Westland District, New Zealand
Alpine passes	Arthur's Pass Browning Pass / Nōti Raureka Copland Pass Haast Pass / Tioripatea
Bays	Bruce Bay Jackson Bay / Okahu
Canyons and gorges	Hokitika Gorge Otira Gorge
Glaciers	Agassiz Glacier Douglas Glacier Fox Glacier / Te Moeka o Tuawe Franz Josef Glacier / Kā Roimata o Hine Hukatere Olivine Ice Plateau Volta Glacier
Headlands	Abut Head Awarua Point Knights Point
Islands	Open Bay Islands
Lakes and lagoons	Abel Lake Alpine Lake / Ata Puai Lake Gault Lake Ianthe / Matahi Lake Kaniere Lake Mahinapua Lake Mapourika Lake Matheson Lake Moeraki Ōkārito Lagoon Lake Paringa Saltwater Lagoon Lake Wahapo
Mountain ranges	Butler Range Southern Alps
Mountains	Mount Adams Aoraki / Mount Cook Mount Aspiring / Tititea Mount Dampier Mount Graham Mount Haast Mount Hopkins La Perouse Lendenfeld Peak Mount Rolleston Mount Sefton Silberhorn Mount Tasman Mount Vancouver Mount Whitcombe
Rivers	Adams River Arahura River Arawhata River Balfour River Barlow River Barn River Barrier River Bettne River Big Wainihinihi Creek Blue River Burke River Butler River Callery River Cascade River Clarke River Clearwater River Cook River / Weheka Copland River Cropp River Deception River Donald River Douglas River Drake River Duncan River Edison River Fork River Fox River Gorge River Gunn River Haast River Hacket River Hall River Hapuka River Harman River Hinatua River Hokitika River Hope River Jackson River Jerry River Kaniere River Karangarua River Kokatahi River Lambert River Landsborough River Lord River Macfarlane River Mahitahi River Makawhio River (Jacobs River) Manakaiaua River Maori River Martyr River Mikonui River Moeraki River Morse River Mueller River Mungo River Ngatau River North Barlow River Ohinemaka River Ohinetamatea River Ōkārito River Okuru River Omoeroa River Oneone River Otehake River Ōtira River Ōtoko River Paringa River Perth River Poerua River Rolleston River Rotokino River Ruera River Smoothwater River Smyth River Stafford River Strauchon River Styx River Taipo River Taramakau River Te Rahotaiepa River Toaroha River Tōtara River Totarakaitorea River Troyte River Tuke River Turnbull River Waiho River Waikukupa River Waipara River Waita River Waitaha River Waitangitāhuna River Waitangiroto River Wanganui River Whakaikai River Whakapohai River Whataroa River Whitcombe River Wilkinson River Willberg River Williamson River Wills River

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