PROJECTRoad tunnels

Road tunnels

Road tunnelsExpressway No.60 (DonghongCheon ~ Yangyang, C14)
Category Alternative design
Client Korea Expressway Corporation
Contractor Daelim Industrial
Period August 14, 2007 ~ October 31, 2008
Project Information
  • Location
    Jindong-ri, Girin-myeon, Inje-gun, Gangwon-do ~ Seorim-ri, Seo-myeon, Yangyang-gun, Gangwon-do, Korea     


  • Description     
    • Total L = 11,900m
    • Inje Tunnel L = 10,951m
    • Seorim 1 Tunnel L = 115m
    • Seorim 2 Tunnel L = 259m


  • Technical Issues
    • Planning of the visual environment improved zone using a lighting system to prevent driver’s drowsiness considering the longest road tunnel in Korea
    • Design of the tunnel considering deep underground conditions (rock cover is 250m depth or more; 60% of tunnel length) and safety facilities (water spray equipment, safety zone, etc.) to reduce casualties