'Inje-Yangyang Tunnel' is the longest tunnel in Korea. (Length: 10.96 km) It connects Inje and Yangyang in Gangwon Province. It is designed with a gentle curve to prevent drowsiness.
[History]
Begin construction: June 4, 2009
Completion: June 29, 2017
[More information]
Length: 10.96 km
Construction workers: 50,000
Use of heavy equipment: 2,900 units
Use of explosives: 2,400 tons
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