Pont huwa struttura mibnija biex tifrex ostaklu fiżiku, bħal korp ta 'ilma, wied, jew triq, mingħajr ma tagħlaq it-triq minn taħt. Hija magħmula għall-iskop li tipprovdi passaġġ fuq l-ostaklu, ġeneralment xi ħaġa li tista 'tkun ta' detriment biex tinqasam mod ieħor. M'hemm l-ebda mod standard biex titkejjel it-tul totali ta 'pont. Xi pontijiet jitkejlu mill-bidu tar-rampa tad-dħul sat-tmiem tar-rampa tal-ħruġ. Xi wħud huma mkejla mix-xatt għall-kosta. Madankollu oħrajn jużaw it-tul tal-kostruzzjoni totali involuta fil-bini tal-pont.
Hawn huma l-aqwa 20 pont itwal fid-dinja.
Rank | Bridge | pajjiż | Tul |
1. | Pont Grand Danyang – Kunshan | Ċina | 164,800 m (540,700 pied) |
2. | Viaduct ta 'Changhua – Kaohsiung | Tajwan | 157,317 m (516,132 pied) |
3. | Pont Grandjan ta 'Tianjin | Ċina | 113,700 m (373,000 pied) |
4. | Pont il-Kbir ta' Cangde | Ċina | 115,900 m (380,200 pied) |
5. | Weinan Grand Bridge Weinan | Ċina | 79,732 m (261,588 pied) |
6. | Bang Na Expressway | Tajlandja | 54,000 m (177,000 pied) |
7. | Bridge Grand Bridge | Ċina | 48,153 m (157,982 pied) |
8. | Lag Pontchartrain Causeway | Stati Uniti | 38,442 m (126,122 pied) |
9. | Linja 1, Wuhan Metro Bridge | Ċina | 37,788 m (123,976 pied) |
10. | Bridge Manchac Swamp Bridge | Stati Uniti | 36,710 m (120,440 pied) |
11. | Jakarta-Cikampek High Road Toll Road | Indoneżja | 36,400 m (119,400 pied) |
12. | Sheikh Jaber Al-Ahmad Al-Sabah Causeway Rabta Prinċipali | Kuwajt | 36,140 m (118,570 pied) |
13. | Pont ta 'Yangcun | Ċina | 35,812 m (117,493 pied) |
14. | Pont tal-Bajja ta 'Hangzhou | Ċina | 35,673 m (117,037 pied) |
15. | Pont ta 'Runyang | Ċina | 35,660 m (116,990 pied) |
16. | Linja 1 tal-Metro Lima | Perù | 33,000 m (108,000 pied) |
17. | Pont Donghai | Ċina | 32,500 m (106,600 pied) |
18. | Pont ta 'Temburong | Il-Brunej Darussalam | 30,000 m (98,000 pied) |
19. | Shanghai Maglev linja | Ċina | 29,908 m (98,123 pied) |
20. | Dwarka Sector 8 Metro Station-Rama Krishna Ashram Marg Station Station | Indja | 29,808 m (97,795 pied) |