Project Meter Arlabán, Spain 8 000 Athens Metro, Greece 5 000 Botniabanan, Sweden 2 000 Bracons, Spain 9 000 Cariblanco, Costa Rica 3 000 Chamera Project, India 21 000 Circle Line 1, Singapore 2 000 Dos Valires, Andorra 11 000 Driskos Tunnel, Greece 2 500 Eyjabakkar, Iceland 2 250 Gjeleraas Tunnel, Norway 2 000 Gotthard & Lötschberg Tunnel, Switzerland 6 000 Guadarrama Tunnel, Spain 30 000 Götatunneln, Sweden 6 000 Hydro Power Tunnel, Indonesia 13 000 Islisberg Tunnel, Switzerland 5 000 Koprubasi Dam Construction Energy Tunnel, Turkey 4 500 Malmö Citytunnel, Sweden 8 000 Marmaray Project, Turkey 15 000 Mitterpichling Tunnel, Austria 2 000 Qin Ling Railway Project, China 37 000 Ravneheiatunnelen Bjørnestad, Norway 1 200 Skopje, Macedonia 600 Sozina Tunnel, Monte Negro 2 000 Statale Road Tunnel, Italy 5 000 Taipei Metro, Taiwan 3 000 Tala Hydro Electric Projet, Bhutan 11 000 TBM Operation Algeria, Algeria 2 500 Uluabat Energy Tunnel, Turkey 11 500 URRA Water Hydro Project, Colombia 2 000 Vomp-Terfens Tunnel, Austria 4 000