Sursoptok Underpass

Sursoptok Underpass (Bengali) is a pedestrian underpass located in Dhaka, Bangladesh. It is one of four underpasses in Dhaka. The underpass with 15 meter high, 135 meters long, 5 meters, four 42 meter long tunnels is currently the largest underpass in Bangladesh. Prior to its construction, Gulistan underpass was the largest underpass in the country.

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Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

Other tunnels in Bangladesh

Delaware Aqueduct United States · 137 km Päijänne Water Tunnel Finland · 120 km Orange–Fish River Tunnel South Africa · 82.8 km Ishikawa Tunnel Japan · 78.5 km Brenner Base Tunnel Austria · 64 km Mont d'Ambin base tunnel France · 57.5 km Gotthard Base Tunnel Switzerland · 57.09 km Hong Kong–Zhuhai–Macau Bridge China · 55 km