Adomi Bridge

Gadar Adomi (asali gadar Volta ) gada ce da ke ratsa bakin karfe da ke ratsa kogin Volta a Atimpoku a Ghana a yammacin Afirka . Ita ce gada ta farko ta dindindin da za ta ratsa kogin Volta, wadda ta ratsa kudu zuwa mashigin tekun Guinea, kuma ita ce gadar dakatarwa mafi tsayi a Ghana. Yana bayar da babbar hanyar, kusa da madatsar ruwan Akosombo, tsakanin yankin Gabas da yankin Volta na Ghana. Kwame Nkrumah, shugaban Ghana na farko ne ya bude ta a shekarar 1957. Babbar gadar baka mai siffar jinjirin wata tana cikin tambari da kudin Ghana. Tarihi A shekara ta 1953 (kafin samun 'yancin Ghana a shekara ta 1956 daga mulkin mallaka na Burtaniya), an yanke shawarar gina gada a fadin Kogin Volta don maye gurbin sabis na jirgin ruwa a Senchi inda jinkirin ya kasance a wasu lokuta har zuwa 'yan kwanaki. Bincike ya nuna kyakkyawan shafin don ƙetare guda ɗaya game da tsayi 800 a wani kunkuntar wuyan kogi a Adomi, game da kilomita 2.5 daga saman jirgin ruwa kuma kusa da madatsar ruwa da tashar wutar lantarki da aka tsara a lokacin a cikin Volta River Project. An zana zane-zane da yawa don gadar baka ko gadar dakatarwa a Adomi da sauran shafuka kuma an haɓaka ƙididdigar farashi. Kwamitin Ci Gaban Ci gaba ya zaɓi kusurwar guda ɗaya a Adomi . A cikin Fall 1953 an nada injiniyoyin ba da shawara: Sir William Halcrow & Partners sune masu gudanar da aikin kuma sun tsara duk hanyoyin kusanci da tsawo, yayin da Freeman Fox & Partners suka tsara gadar arko guda ɗaya. Bayan shekara guda, an gayyaci masu siyarwa don cikakken aikin, gami da hanyoyin kusanci, gadar bakan da kusanci. A watan Janairun 1955, an daidaita kwangilar kuma wasu ma'aikatan gini sun fara zuwa wurin. Dorman Long (Bridge and Engineering) Ltd ita ce babban dan kwangila na gini kuma Kamfanin Cleveland Bridge & Engineering Company shine mai kirkirar ƙarfe. An fara aiki a kan gadar ne a watan Maris na shekara ta 1955, tare da sassan ƙarfe da aka riga aka yi a Ƙasar Ingila, yayin da aka gudanar da ayyukan kankare don kusanci da ƙuƙwalwar gadar a wurin. An tsara sassan da aka riga aka yi su gaba ɗaya, amma kusan dukkanin gine-ginen ƙarfe a wurin an tsara su azaman haɗin da aka ɗora, gami da waɗanda ke saman da ƙananan ƙira na ƙwanƙwasawa. An gina hanyar motar kankare bayan an kammala aikin ƙarfe don bakan da bene. A watan Janairun shekara ta 1957 an kammala aikin sosai. Jimlar kudin da aka kammala aikin ya kai fam dubu 682. Tsarin gadar da aka yi William Brown na injiniyoyin Freeman Fox &amp; Partners ne ya tsara gadar guda ɗaya. Yana da gada mai siffar ƙarfe mai siffar azurfa mai siffar arfa tare da hanyar hanya guda biyu da aka dakatar da igiyoyi. Ƙananan ƙuƙwalwar ta tashi 158.5 feet (48.3 m) sama da hinges kuma babban tsayi yana da 805 feet (245 m) tsawo. Don yin kyakkyawan siffar ƙwanƙwasawa, ƙananan ƙuƙwalwar da aka kafa ta ƙananan ƙuchu shine parabola, kuma ƙuƙwalwa ta sama an samo ta ne daga gare ta hanyar raguwa ta hanyar logarithmically daga tsakiya zuwa hinges. Aesthetically the arch was the perfect complement to the trough of the valley... and the silver colour proposed for the steelwork would offset the green of the hills against which it would be seen. --Scott and Roberts (1958) Kamar yadda aka dakatar da gadon hanya ta hanyar kebul na tsaye (hangers) da aka haɗa da tashar ƙarfe, ana iya ɗaukar gadar a matsayin nau'in tashar tashar. Biyu na igiyoyi masu tsaye ko hangers an haɗa su a tsakanin 35ft zuwa katako na katako, wanda, tare da katako shida na katako da bracers a tsakanin katako na tsakiya, suna tallafawa nauyin hanya da nauyinta. Kwame Nkrumah, Firayim Minista na Gold Coast kuma Shugaban Ghana na farko ne ya buɗe gadar a hukumance a ranar 25 ga watan Janairun shekara ta 1957. Yana ɗauke da Hanyar Kasa ta N2 kuma ya kasance mai taimako sosai ga matafiya da 'yan kasuwa waɗanda ke amfani da hanya don samun damar zuwa gabas da arewacin yankunan Ghana. Hanyar zuwa gadar Adomi Bridge yana cikin Atimpoku a Yankin Gabas Ghana, wanda ke kusa da Kogin Volta . Ginin yana ɗauke da Hanyar Kasa N2 kuma yana haɗa ɓangarorin Yankin Gabas da Juapong a Gundumar Arewacin Tongu, Ho, Hohoe, da sauran garuruwa a Yankin Volta. Tafiye-tafiye daga yankunan arewacin Ghana a kan N2 zai ratsa hanyar gabas kuma a ƙarshe ya yi amfani da Adomi Bridge don haye Kogin Volta. Ginin yana da nisan kilomita 87 kilometres (54 mi) (54 arewa maso gabashin Accra, babban birnin Ghana, kuma kimanin kilomita 75 kilometres (47 mi) (47 arewacin tashar jiragen ruwa ta Tema. Ayyukan farfadowa 2008: An gano wasu manyan fashewa, watakila saboda gajiya, a kan katako na gadar a tsakiyar tsakiya. Bayan wadannan binciken, Gwamnatin Ghana ta sanya iyakar kaya a kan gadar don rage yawan lalacewar. An karfafa katako da aka fashe ta hanyar shigar da ƙarin faranti na ƙarfe a wuraren da abin ya shafa. Ci gaba da amfani da gadar ta hanyar manyan motoci duk da haka, ya kara lalata amincin bene da kwanciyar hankali. 2009: An sami karin raguwa, galibi a kusa da wannan yanki kamar yadda aka gano a baya; wannan ya bukaci manyan ayyukan gyarawa a kan gadar dakatarwa. 2011: An kammala cikakken binciken gada a watan Afrilun 2011. Gabaɗaya, an gano akwatin yana cikin yanayi mai kyau, amma gadar ta kasance mafi muni fiye da yadda ake tsammani, wanda aka danganta shi da nauyin zirga-zirga da rashin kulawa, kuma ya kamata a maye gurbinsa. 2014: An rufe gadar don zirga-zirga a ranar 10 ga Maris 2014 don maye gurbin dukkan titin da aka dakatar da shi da duk masu ratayewa, ta injiniyoyin Bilfinger MCE GmbH na Austria na Yuro miliyan 13. An maye gurbin tsohuwar bene na kankare da ƙarami, mai ƙarfi na orthotropic tare da kashin biyu: farantin ƙarfe tare da katako biyu masu ci gaba, suna gudana a ƙarƙashin hanyoyi / hanyoyi, tare da duk lokacin da aka dakatar. 2015: An bude sabon gadar da aka gyara don zirga-zirga a watan Disamba na shekara ta 2015. Wurin yawon bude ido A watan Afrilu na shekara ta 2019, an rarraba Adomi Bridge a matsayin wurin yawon bude ido bayan yarjejeniya tsakanin Gundumar Asuogyaman, Hukumar Hanyar Ghana da Kamfanin Ci gaban Yawon Bude Ido na Ghana (GTDC). Hotuna Manazarta