Tus choj yog tus qauv tsim los txhawm rau thaiv qhov chaw ntawm lub cev, xws li lub cev ntawm dej, hav, lossis txoj kev, tsis kaw qhov hauv qab. Nws yog tsim rau lub hom phiaj los muab kev hla dhau qhov chaw khuam siab, feem ntau yog qee yam uas tuaj yeem cuam tshuam kom hla lwm tus. Nws tsis muaj ib txoj hauv kev los ntsuas qhov ntev tag nrho ntawm tus choj. Qee tus choj yog ntsuas los ntawm qhov pib ntawm kev nkag mus txog rau thaum kawg ntawm txoj kev tawm. Qee qhov ntsuas tau los ntawm sab ntug dej dhau los. Tseem tshuav lwm tus siv qhov ntev ntawm tag nrho cov kev koom tes hauv kev tsim kho tus choj.
Nov yog cov txuas 20 saum ntev tshaj plaws hauv ntiaj teb.
nyob qib | choj | Lub teb chaws | Length |
1. | Danyang-Kunshan Yawg Choj | Tuam Tshoj | 164,800 m (540,700 ko taw) |
2. | Changhua – Kaohsiung Viaduct | Taiwan | 157,317 m (516,132 ko taw) |
3. | Tianjin Yawg Choj | Tuam Tshoj | 113,700 m (373,000 ko taw) |
4. | Cangde Grand Choj | Tuam Tshoj | 115,900 m (380,200 ko taw) |
5. | Weinan Weihe Yawg Choj | Tuam Tshoj | 79,732 m (261,588 ko taw) |
6. | Bang Na Txoj Kev Loj | Thaib teb | 54,000 m (177,000 ko taw) |
7. | Beijing Grand Choj | Tuam Tshoj | 48,153 m (157,982 ko taw) |
8. | Pas Dej Pontchartrain Causeway | United States | 38,442 m (126,122 ko taw) |
9. | Kab 1, Wuhan Metro Choj | Tuam Tshoj | 37,788 m (123,976 ko taw) |
10. | Manchac Swamp Choj | United States | 36,710 m (120,440 ko taw) |
11. | Jakarta-Cikampek Kev Loj Xov Hu Tawm | Indonesia | 36,400 m (119,400 ko taw) |
12. | Sheikh Jaber Al-Ahmad Al-Sabah Causeway Qhov Tseem Ceeb Txuas | Kuwait | 36,140 m (118,570 ko taw) |
13. | Yangcun Choj | Tuam Tshoj | 35,812 m (117,493 ko taw) |
14. | Hangzhou Bay Choj | Tuam Tshoj | 35,673 m (117,037 ko taw) |
15. | Runyang Choj | Tuam Tshoj | 35,660 m (116,990 ko taw) |
16. | Lima Xov Tooj Xov 1 | Peru | 33,000 m (108,000 ko taw) |
17. | Donghai Choj | Tuam Tshoj | 32,500 m (106,600 ko taw) |
18. | Temburong Choj | Brunei Darussalam | 30,000 m (98,000 ko taw) |
19. | Shanghai Maglev kab | Tuam Tshoj | 29,908 m (98,123 ko taw) |
20. | Dwarka Sector 8 Chaw Nres Tsheb-Rama Krishna Ashram Marg Chaw Nres Tsheb | Is Nrias teb | 29,808 m (97,795 ko taw) |