Onekaka River

River in Tasman District, New Zealand

40°48′17″S 172°41′03″E / 40.8046°S 172.6841°E / -40.8046; 172.6841 Mouth

• location

Ōtere River

• coordinates

40°45′47″S 172°42′36″E / 40.7631°S 172.7101°E / -40.7631; 172.7101Length8 kilometres (5.0 mi)Basin featuresProgressionOnekaka River → Ōtere River → Golden Bay / Mohua → Tasman SeaTributaries • rightIronstone Creek

The Onekaka River is a river of the Tasman Region of New Zealand's South Island. It flows north from its sources in the northeast of Kahurangi National Park and south of Onekaka Iron Works Road, crossing under State Highway 60, before flowing into the Ōtere River some 13 km (8.1 mi) northwest of Tākaka in Golden Bay.

Onekaka Power Station is a small hydro-electric generating station operating on the river. The first power station on the river was built in 1928-29 to provide power for the Onekaka Ironworks. The station was rebuilt from 1995 using the original concrete arch dam, but with new penstocks, powerhouse and generating equipment.^[1] The new powerhouse was commissioned in 2003.^[2]

References

^ Leyland, Bryan W. (1 September 2009). "SMALL HYDRO: Practical Development: The Story of 940-kW Onekaka". Renewable Energy World. Retrieved 11 February 2024.
^ "Bay hydro powers up". Nelson Mail. 3 November 2003. ProQuest 274522037.

External links

"Place name detail: Onekaka River". New Zealand Gazetteer. New Zealand Geographic Board. Retrieved 12 July 2009.

Kahurangi National Park

Mountains

Mount Arthur
Mount Burnett
Mount Owen

Mountain ranges

Glasgow Range
Wharepapa / Arthur Range

Mountain passes

Granity Pass

Caves

Coastal features

Lakes and reservoirs

Boulder Lake
Lake Sparrow

Walking tracks

Rivers

Tasman District	Anatoki River Aorere River Baton River Big River Boulder River Brown River Clark River Clarke River Cobb River Dart River Devil River Ellis River Fyfe River Hope River Kaituna River Little Boulder River Little Devil River Little Ōnahau River Little Pokororo River Little Slate River Little Waingaro River Matiri River Ōnahau River Onekaka River Ōtere River Owen River Parapara River Pariwhakaoho River Paturau River Pearse River Pokororo River Puremāhaia River Riuwaka River Rocky River Rolling River Saxon River Sherry River Skeet River Slate River Snow River Spey River Stanley River Tadmor River Tākaka River Te Waikoropupū River Turimawiwi River Waingaro River Wangapeka River
Buller District	Allen River Beautiful River Crow River Gunner River Heaphy River Hemphill River Huia River Johnson River Kahurangi River Kākāpō River Karamea River Kōhaihai River Leslie River Lewis River Little Crow River Little Wanganui River Mōkihinui River Ōpārara River Basin Postal River Roaring Lion River Taipō River Ugly River
both districts	Buller River