Gada ce ginin da aka gina don ɗaukar wata matsala ta jiki, kamar jikin ruwa, kwari, ko hanya, ba tare da rufe hanyar da ke ƙasa ba. An gina shi don manufar samar da nassi a kan matsalar, yawanci wani abu ne mai yuwuwar illa ya ketare in ba haka ba. Babu wata hanyar ingantacciyar hanya da za'a iya auna tsawon gadar. Ana auna wasu gadoji daga farkon ƙofar ƙofar zuwa ƙarshen rafin mafita. Ana auna wasu daga bakin teku har zuwa gaɓar tekun. Duk da haka wasu sun yi amfani da tsawon jimlar ginin da aka gina.
Anan ga manyan gadoji 20 mafi tsawo a duniya.
Rank | Bridge | Kasa | Length |
1. | Gadar gada ta Danyang – Kunshan | Sin | 164,800 m (540,700 ƙafa) |
2. | Changhua – Kaohsiung Viaduct | Taiwan | 157,317 m (516,132 ƙafa) |
3. | Gadar Tianjin | Sin | 113,700 m (373,000 ƙafa) |
4. | Babbar Gadar Cangde | Sin | 115,900 m (380,200 ƙafa) |
5. | Weinan Weihe Babban gada | Sin | 79,732 m (261,588 ƙafa) |
6. | Bang Na Expressway | Tailandia | 54,000 m (177,000 ƙafa) |
7. | Gadar gada ta Beijing | Sin | 48,153 m (157,982 ƙafa) |
8. | Lake Pontchartrain hanyar | Amurka | 38,442 m (126,122 ƙafa) |
9. | Layi na 1, Wuhan Metro Bridge | Sin | 37,788 m (123,976 ƙafa) |
10. | Gadar Manchac | Amurka | 36,710 m (120,440 ƙafa) |
11. | Jakarta-Cikampek ta hau kan Titin Toll | Indonesia | 36,400 m (119,400 ƙafa) |
12. | Sheikh Jaber Al-Ahmad Al-Sabah Causeway Babban Haɗin | Kuwait | 36,140 m (118,570 ƙafa) |
13. | Gadar Yangcun | Sin | 35,812 m (117,493 ƙafa) |
14. | Gadar Hangzhou Bay | Sin | 35,673 m (117,037 ƙafa) |
15. | Guduwar Runyang | Sin | 35,660 m (116,990 ƙafa) |
16. | Lima Layin Lamba 1 | Peru | 33,000 m (108,000 ƙafa) |
17. | Gadar Donghai | Sin | 32,500 m (106,600 ƙafa) |
18. | Gadar Damuwa | Brunei Darussala | 30,000 m (98,000 ƙafa) |
19. | Layin Shanghai Maglev | Sin | 29,908 m (98,123 ƙafa) |
20. | Dwarka Sector 8 Station na Rama Krishna Ashram Marg | India | 29,808 m (97,795 ƙafa) |