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The lake has a maximum depth of 50 metres (160 ft), a relative depth of 2.8%, and an annually fluctuating water level of only 0.5 metres (1.6 ft) to 0.75 metres (2.5 ft). Upper reaches of the lake are shallow (1 to 4 m), with a sinuous channel constricted by a narrow ignimbrite gorge.
375:
Since its creation the
Matahina dam has acted as an effective barrier to the seaward movement of sediment by the Rangitaiki River. Pre-dam annual discharge figures for suspended and bed load sediment near the river mouth were about 201 000 and 188 000 tonne respectively, but equivalent post-dam
602:
376:
values have dropped to 65 000 and 10 000 tonne. This trapping of sediment has halted or substantially reduced the downstream historical rising river bed and coastal progradation of the
Rangitaiki plains.
278:
As the gorge widens down lake, the depth increases to15 metres (49 ft) along a delta front, and to 40 metres (130 ft) to 50 metres (160 ft) in the basin immediately behind the dam.
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While principal capture of sediment occurs at the upstream
Aniwhenua dam which was completed in 1982, an increasing amount of sediment is being deposited in the deep portion of Lake Matahina.
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Shall not exceed this level in all except âEmergency
Conditionâ situations (as defined in Trustpower's âLake Matahina Flood Management Planâ).
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405:. 2nd International Conference on Case Histories in Geotechnical Engineering. St Louis, MO. pp. 841â848.
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In 1969, five children drowned after driving a car into Lake
Matahina at a camp that New Zealand author
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Matahina
Hydroelectric Power Scheme Reconsenting Project: River Hydrology, Hydraulics and Bank Erosion
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helped to run. Crump was charged with manslaughter over the deaths, but these charges were dropped.
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269:, one of Crump's ex-wives, said that it was negligence on his behalf that the children died.
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No generation below this level. Spillway gates reliant on mains power or back-up generator
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557:(Report). RangitÄiki River Scheme Review Panel. 18 September 2017. pp. 15, 16, 73, 75
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Approval is required from Bay of Plenty
Regional Council to go below 71.6.
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Lakes in catchment (upstream to downstream by location or tributary)
456:"Sedimentation in an Artificial Lake - Lake Matahina, Bay of Plenty"
636:
525:
Taonga, New
Zealand Ministry for Culture and Heritage Te Manatu.
454:
Phillips, Christopher John; Nelson, Campbell S. (December 1981).
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501:"Poet Fleur Adcock attacks her ex-husband Barry Crump in verse"
314:
Maximum Lake level during floods of less than 200 cumecs
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RangitÄiki River Scheme Review â April 2017 Flood Event
466:(4). Wellington: Royal Society Te ApÄrangi: 459â473.
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New
Zealand Journal of Marine and Freshwater Research
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358:Extreme Minimum Level (major flood >500 cumecs)
402:The Observed Seismic Behavior of the Matahina Dam
254:and its associated 86 m tall Matahina Dam on the
250:. The lake was formed by the construction of the
242:, located immediately south of the settlement of
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730:Towns and settlements (upstream to downstream)
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781:Major tributaries (upstream to downstream by
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608:(Report). Beca Infrastructure Ltd. p. 16
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286:The lake's operating levels are as follows:
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633:. Describes swimming options at the lake.
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295:Level (referenced to the Moturiki Datum)
16:Lake in Bay of Plenty region, New Zealand
842:Other features (upstream to downstream)
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320:This is the spillway date crest level.
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1093:Bay of Plenty Region geography stubs
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1036:. You can help Knowledge (XXG) by
983:. You can help Knowledge (XXG) by
205:2.3 km (0.89 sq mi)
14:
1083:Lakes of the Bay of Plenty Region
66:Location of Lake Matahina in the
1024:
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631:Rangitaiki River at Matahina Dam
582:. Bay of Plenty Regional Council
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1032:This article about a lake is a
399:Gillon, M. D. (1â5 June 1988).
258:, which was completed in 1967.
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601:Millais, Peter (13 May 2009).
336:Minimum Normal Operating Level
331:Normal upper operating limit.
325:Maximum Normal Operating Level
35:Lakeside view of Lake Matahina
1:
849:North Island Volcanic Plateau
473:10.1080/00288330.1981.9515938
347:Minimum Level (flood pending)
342:Normal lower operating limit
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874:Longest New Zealand rivers
1088:Reservoirs in New Zealand
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577:"Resource Consent 65750"
422:"Matahina Dam Fact File"
979:geography article is a
246:and 50 km east of
213:50 m (160 ft)
197:6 km (3.7 mi)
252:Matahina Power Station
234:is a reservoir in the
221:55,000,000 m (1.9
119:38.11806°S 176.81667°E
165:Construction engineer
925:Waiau Toa / Clarence
706:Bay of Plenty region
694:Administrative areas
124:-38.11806; 176.81667
711:Rangitikei District
225:10 cu ft)
115: /
721:WhakatÄne District
701:Hawke's Bay region
303:Design Flood Level
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169:Ministry of Works
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175:First flooded
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60:Lake Matahina
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24:Lake Matahina
22:
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1038:expanding it
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985:expanding it
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864:Matahina Dam
833:Lake Otumahi
827:
818:Lake Pouarua
683:
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612:20 September
610:. Retrieved
596:
584:. Retrieved
571:
559:. Retrieved
546:
534:. Retrieved
530:
520:
508:. Retrieved
504:
463:
459:
430:. Retrieved
401:
378:
374:
292:Description
285:
276:
267:Fleur Adcock
260:
231:
230:
218:Water volume
202:Surface area
160:1960 to 1967
86:North Island
68:North Island
18:
797:Wheao River
684:Flows into:
561:9 September
527:"Biography"
282:Lake levels
263:Barry Crump
240:New Zealand
194:Max. length
122: /
97:Coordinates
90:New Zealand
1098:Lake stubs
1077:Categories
943:Rangitaiki
907:Rangitīkei
783:confluence
737:Rangitaiki
483:10289/4737
426:Trustpower
383:References
350:71.60 m RL
339:73.15 m RL
238:region of
210:Max. depth
110:176°49â²0â³E
895:Whanganui
767:Edgecumbe
586:5 October
505:NZ Herald
361:70.0 m RL
328:76.2 m RL
317:76.4 m RL
306:76.8 m RL
298:Comments
141:reservoir
949:Manawatū
772:Thornton
757:Te Mahoe
742:Murupara
244:Te Mahoe
107:38°7â²5â³S
78:Location
931:Waitaki
913:Mataura
883:Waikato
762:Te Teko
752:Waiohau
747:Galatea
677:Source:
536:21 June
510:21 June
248:Rotorua
180: (
901:Taieri
432:14 May
975:This
937:Åreti
919:Waiau
606:(PDF)
580:(PDF)
555:(PDF)
273:Depth
157:Built
1034:stub
981:stub
947:12:
941:11:
935:10:
614:2021
588:2021
563:2021
538:2021
512:2021
434:2020
182:1967
178:1967
136:Type
929:9:
923:8:
917:7:
911:6:
905:5:
899:4:
893:3:
887:2:
881:1:
478:hdl
468:doi
1079::
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503:.
492:^
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464:15
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442:^
411:^
391:^
88:,
84:,
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682:â
660:e
653:t
646:v
616:.
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540:.
514:.
486:.
480::
470::
436:.
223:Ã
184:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
