Lake Waipapa

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Lake Waipapa
The reservoir seen from the dam to the south
The reservoir seen from the dam to the south
Location: southwest of the town of Tokoroa in the Waikato region , North Island , New Zealand
Tributaries: Waikato River
Drain: Waikato River
Lake Waipapa (New Zealand)
Lake Waipapa
Coordinates 38 ° 17 '54 "  S , 175 ° 40' 58"  E Coordinates: 38 ° 17 '54 "  S , 175 ° 40' 58"  E
Data on the structure
Lock type: Gravity dam
Construction time: until 1961
Height of the barrier structure : 34 m
Crown length: 75 m
Crown width: 9.2 m
Base width: 106 m
Power plant output: 51 MW
Operator: Mercury NZ Limited
Data on the reservoir
Altitude (at congestion destination ) 124.27 m - 128.89 m
Water surface 1.6 km²
Reservoir length 6 km
Reservoir width 90 - 420 mdep1
Maximum depth 22 m
Catchment area 254 km²

The Lake Waipapa is the river system of the Waikato River belonging Reservoir on the North Island of New Zealand .

Origin of name

In the Māori language, the name " Waipapa " is composed of the words " wai " for "water" and " papa " for "flat rock" and possibly means "river across the plain" or "river over the flat rock" .

geography

The 1.6 km² large Lake Waipapa is located around 38 km north-northwest of Lake Taupo and around 16 km southwest of the city of Tokoroa , flanked by a hilly landscape up to 325  m high. The lake, which extends in the valley of the former river bed of the Waikato River , has a length of around 8 km and its width varies between 90 and 420 m. The height of the lake varies depending on the water level between 124.27 m and 128.89 m, with a maximum lake depth of 22 m. Its immediate water catchment area is 254 km².

The reservoir can be reached via Waipapa Road , which branches off to the northwest at Lake Maraetai from New Zealand State Highway 30 and accompanies the reservoir at its lower end west to the dam wall.

Administratively, the lake belongs to the Waikato region .

The Lake Waipapa follow one after the reservoirs Lake Arapuni and Lake Karapiro , the reservoirs Lake Maraetai , Lake Whakamaru , Lake Atiamuri , Lake Ohakuri and Lake Aratiatia go ahead of him.

history

The reservoir and the associated hydropower plant were put into operation in 1961 and were designed for a nominal output of 51  MW . As of 2020, the operator of the hydropower plant is the majority state-owned company Mercury NZ Limited .

See also

literature

  • CHD Magadza : Physical and chemical limnology of six hydroelectric lakes on the Waikato River, 1970-72 . In: New Zealand Journal of Marine and Freshwater Research . Vol. 13, Issue 4 , 1979, pp. 561-572 , doi : 10.1080 / 00288330.1979.9515835 (English).
  • Tracey Edwards, Mary de Winton, John Clayton : Assessment of the ecological condition of lakes in the Waikato region using LakeSPI - 2010 . In: Environment Waikato (Ed.): Environment Waikato Technical Report . 2010/24 , June 2010, ISSN  1177-9284 (English).

Individual evidence

  1. ↑ a b c d Topo maps . Land Information New Zealand , accessed January 5, 2020 .
  2. ^ Hydro Stations : Waipapa - Overview . Mighty River Power , archived from the original on June 16, 2007 ; accessed on January 9, 2020 (English, original website no longer available).
  3. ^ A b Edwards, Winton, Clayton : Assessment of the ecological condition of lakes in the Waikato region using LakeSPI - 2010 . 2010, p.  3 .
  4. ↑ Coordinates and longitudes were determined using Goggle Earth Pro Version 7.3.2.5776 on January 5th, 2020
  5. ^ Waikato Lake Levels . Mercury NZ Limited , accessed January 5, 2020 .
  6. ↑ Magadza : Physical and chemical limnology of six hydroelectric lakes on the Waikato River, 1970-72 . 1979, p.  572 .
  7. ↑ Hydro Generation . Mercury NZ Limited , accessed January 5, 2020 .
  8. ^ Hydro Stations: Waipapa . Mighty River Power , archived from the original on July 6, 2007 ; accessed on January 5, 2020 (English, original website no longer available).