Gadar kogin Niger
Gadar Kogin Neja da ke Onitsha (wanda aka fi sani da Gadar Onitsha), Jihar Anambra, Nijeriya ta haɗu kudu maso gabashin Nijeriya da yammacin Nijeriya a kan Kogin Neja . Wanda  a Asaba a jihar Delta, Najeriya.

Tarihi 
Karatun mai yiwuwa da kuma yin la'akari da yadda za'a iya gina gada a hayin Kogin Niger daga Asaba zuwa Onitsha wanda Netherlands engineering Consultants Hague, Holland (NEDECO) suka gudanar a cikin shekarun 1950,  Tsakanin 1964 da 1965, katafaren kamfanin gine-ginen faransa, Dumez, ya gina gadar Neja, don haɗa Onitsha da Asaba a cikin jihohin Anambara da Delta a yanzu a kan kuɗin da aka kiyasta na £ 6.75 miliyan. An kammala ginin gadar a watan Disambar shekara ta alib 1965. 

Bayan an kammala, gada ya kasance ƙafa takwas da ɗari huɗu da ashirin (8 × 420 ft.) Tare da hanyar mota mai ƙafa 36-tsakiyar truss da kuma tafiya mai tafiya a bangarorin biyu na hanyar motar. Firayim Minista na lokacin Marigayi Alhaji Tafawa Balewa ne ya ba da umarnin kuma aka bude shi don zirga-zirga a watan Disambar shekara ta alib 1965. Kaddamar da gadar shi ne aiki na karshe na Firayim Minista kafin a kashe shi a ranar 15 ga Janairun shekara ta alib 1966. 

A lokacin yakin basasar Najeriya na shekarar alib 1967 - 1970, a kokarin dakatar da ci gaban sojojin Najeriya, sojojin da suka dawo daga Biafra sun lalata Gadar Niger da ke Onitsha, inda suka yiwa 'yan Najeriya tarko a wancan gefen kogin. A lokacin gwamnatin Shugaba Goodluck Ebele Jonathan, an gyara gadar ta hanyar sauya sau biyu a karshen Onitsha na gadar da ta lalace a lokacin yakin basasa da beli mai kafa goma sha hudu, a kan kudin da aka kiyasta ya kai fam miliyan 1.5.

Hanyoyin haɗin waje 

 Bidiyon Gadar Neja (Youtube.com)

Manazarta 

Jihar Neja