Baraas Sterkfontein

Baraas Sterkfontein

dam

Reservoir created	Sterkfontein Reservoir
Lesdi	Sawdafirika
Nder laamoore	Free State
Location	Harrismith
Jonde kwa'odineto	28°23′10″S 29°1′27″E
Service entry	1980

 

 From Wikidata

Baras Sterkfontein, woni ko yaasi wuro Harrismith, e nder Dowlaaji Dentuɗi, e nder diiwaan Afrik worgo, ina jeyaa e eɓɓaande ndiyam Tugela-Vaal e eɓɓaande mooftugol ndiyam Drakensberg, ina woni e dow Nuwejaarspruit, ɓuuɓol maayo Wilge e nder nokku ɓuuɓɗo toowɗo maayo Vaa. Ko kañum woni mahdi baraas ɗiɗmiri ɓurndi toowde e nder Afrik worgo e baraas mum ɓurɗo toowde e hebbinde leydi.

Ɓawo

Tariya

Yaajde faggudu jaawndu e nokku mawɗo Johannesburg e kitaale 1960 e 1970 waɗii ndiyam mum e nder kulhuli juutɗi, ɗum noon fellitii rewrude e ndiyam ummoraade e maayo mawngo Tugela ngo yahrata ko no huutoraaka e nder geec, e mooftude ɗum e nder reservoir mawɗo strateeji ndiyam elowpour very with. Nokku gadano cuɓaaɗo ngam ndee eɓɓaande ko e falnde wonnde bannge worgo maayo Elands. Ko ɗum woni cuɓal ɓurngal yiɗeede to bannge injiniyaaruuji sabu ina waɗi koɗorɗe baraas tokoose. Kono ko juuti hade mahngo fuɗɗaade nokku oo e dow Nuwejaarspruit suɓaama ngam dalillaaji politik sabu ɗum reentinii feccere e ilam Bantustan keso peewnaaɗo mo Qwaqwa to Phuthadichaba. Ina waawi firtude wonde ngalɗoo ngalu ngenndiwal strateeji ina waawi tawa ko e "leydi ngoɗndi" ndi jaɓaaka no yiyraa e yiyannde laamu nguu hannde e oon sahaa.

Mahugo

Pewnugol ngol fuɗɗii ko e hitaande 1969, daawal gadanal ngal fuɗɗii ko e hitaande 1977, ngal waɗi ko 69 meeteruuji (226 ft) toowɗi, njuuteendi mum ko 2 290 meeteruuji (7 510 ft) tawi alaa ko ɓuuɓnata. Caggal nde daawal gadanal ngal joofi, kuulal ngal ƴettaa ngam jokkude ɗoon e ɗoon daawal gadanal ngal, caggal ɗuum ngal ƴettaa e hitaande 1980 haa ngal tolnii e tolno 93 meeteer (305 ft) e njuuteendi ŋorol ngol ko 3 060 meeteer (10 040 ft) e mbaawka jolngo timmungo 66 miliyoŋ meter (61,200). ektaar⋅ft). So nde heewii, nde jogii wertallo ngo ɓuraani 70 km2. Baras yaajɗo oo fuɗɗii golle ko e hitaande 1980, ina jogii mbaawka 2 616 950 meeteer kuuɓtodinɗo (2 121,60 acre⋅ft), tawi njaajeendi mum ko 67,26 kiloomeeteer kaaree tan (25,97 miil kaaree), koɗorɗe baraas oo ina tolnoo e 953 meeteer kaaree (30). Duuɓi mahngo ngoo fof ko duuɓi 11. Ko Departemaa Geɗe Ndiyam ƴetti baraas Sterkfontein oo, mahi ɗum. Baraas oo ɓuri huutoreede ko e kuutoragol nder galleeji e nder gollorɗe e mbaadiiji mum bonɗi ina limtaa to bannge toowɗo (3).

Innde

Baraas oo inniraa ko gooto e gese tawaaɗe e saraaji mahngo mum. Wuro wakkatiyankeewo wonande gollotooɓe mahdi ndii, mahaa ko e ngesa Sterkfontein. Konngol sterkfontein firti ko ndunngu tiiɗngu e ɗemngal Afrik.

Maandolji

Leydi hebbi dam wall

Wall ko sifaa ɓuuɓol leydi. Koɗorɗe baraas oo ina waɗi 19,8 miliyoŋ meeteer kubik (700×106 cu ft) kaɓirɗe ko ɗum waɗi koɗorɗe baraas ɓurɗe mawnude e nder Afrik worgo to bannge njuuteendi. Reservoir oo ina fawii e koɗorɗe ɗiɗi. Koɗorɗe ɗiɗaɓere ɗee ko 600 meeteer (2 000 ft) njuuteendi, ina waɗi 1,04 miliyoŋ meeteer kuuɓtodinɗo (37×106 ft kuuɓtodinɗo) kaɓirɗe.

Alaa ɓuuɓri

Baraas oo ina seerti e ndiyam ɗam, sibu ko ɓuri heewde e ndiyam ɗam ummotoo ko e diwde ɓuuɓol ummoraade e dow maayo Tugela. So wonaano ɗuum, ndiyam ɗam ina famɗi huutoreede, ina ɓuuɓtoo e nder geec. Baraas oo mahaaka e dow maayo kono e oon sahaa, o woni ko e dow ko waawi siforeede no weendu mawndu nii, e nder dowri toowndi e nder falnde Nuwejaarspruit. Wertallo ndiyam baraas oo ina famɗi laabi tati e nder weeyo ndiyam baraas oo, ɗum noon alaa ko waawi heen wonde so wonaa ilam. Ko ɗum waɗi mahdi dammbugal mawngal ngal alaa haaju e ɓuuɓol. Kala ndiyam toɓo ɓurɗam heewde ina waawi yaltineede e ɓulli mum yaltooji e dow jam. Nafoore ndeeɗoo nokku ko baraas oo ko ɓuuɓol baawngol huutoreede no feewi, sibu ina jogii luggiɗde ngam mooftude ndiyam keewɗam, tawi noon ko seeɗa tan bonnata ɗum e ɓuuɓde. Laana Vaal Dam (reservoir) so en ƴeewtindiima ina jogii wertallo mawngo, ina famɗi no feewi, ko ɗum addanta ɗum ɓeydaade ɓuuɓde. Duuɓi 17 toɓo ina ɗaɓɓi ngam hebbinde baraas oo. Kono nanngude toɓo wonaano anniya teeŋtuɗo caggal ndee eɓɓaande. Nde mahaa ko ngam jaggude ndiyam maayo Tugela, yettina ɗum e nder seŋorde Vaal.

Sifaa mooftirgel ndiyam pompe

Baraas oo ina heɓa ndiyam mum e Eɓɓaande ndiyam Tugela-Vaal nde caggal ɗuum inniraa « Eskeem mooftirgel pompe Drakensberg » ko 1 000 MW mooftirgel ndiyam pompe tawi ina waɗi jolngo laaɓtungo fotde 630 miliyoŋ meeteer kuuɓtodinɗo (510 000 acre⋅ft) ndiyam ummoraade e 1 000 MW. Ɗum ina mooftaa e baraas Sterkfontein, ina yaltinee e baraas Vaal rewrude e maayo Wilge so ina haani.

Dam nder dam

Baraas Driekloof mo woni e nder baraas Sterkfontein, ina hiisee wonde baraas ceertuɗo e ɓuuɓri, tee o naatnaaka e limooje dow ɗee. Ko ɓuri heewde ko baraas nder baraas. Dam Driekloof ko nokku mooftirɗo toowɗo e nder njuɓɓudi mooftirndi pompe Drakensberg. So tawii baraas Sterkfontein ina woɗɗi, reservoir Driekloof ina jogori jogaade ndiyam ngam peeje desorɗe pompiyee ɗee mbaawa golloraade tawa haɗataa ɗum. So baraas Sterkfontein ina heewi doole, baraas Driekloof ina ɓuuɓtoo haa to dow ɓuuɓri mum.

Baraas tataɓo ɓurɗo mawnude e nder Afrik worgo

Ko ɗum woni baraas 3ɓo ɓurɗo mawnude e nder Afrik worgo to bannge mbaawka ndiyam, tee ina ɓura baraas Vaal mawnude seeɗa.

• Baraas Gariep ko 5 340 600 MegaL
• Baras Vanderkloof ko 3 171 300 MegaL
• Baraas Sterkfontein ko 2 616 900 MegaL
• Baraas Vaal 2 603 400 MegaL

Nokkuuji reentorɗi

Reservoir naturel dam Sterkfontein ko nokku reenaaɗo, mo dam oo woni.

Galle fotooje

• 
  Artist's impression of the 1st phase of the Sterkfontein Dam. The final wall was raised to the level of the valve control room at the top of the concrete tower.
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  A view of the dam basin prior to being covered by water
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  The first of three information boards posted at a vehicle rest area overlooking the reservoir just off the R74
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  The second information board
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  The third information board
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  A campsite with chalets at the water's edge. Note the dry conditions (conducive to bush fires) in the wintertime.
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  Camping area at the water's edge
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  The earth wall on the eastern side of the Sterkfontein Dam
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  Earth moving equipment dumping fill from the borrow pits for the wall of Sterkfontein Dam. August 1972.
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  The site workshops for Sterkfontein Dam. The area below the site office is now underwater.
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  The construction village at Sterkfontein Dam, 1973
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  The Department of Water Affairs site office. Sterkfontein Dam, 1972.
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  A view of the dam wall of Sterkfontein Dam during construction. In the foreground is resident Engineer David Bell.
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  David Bell the Resident Engineer of Sterkfontein Dam explaining the works to a journalist, circa 1974