STI s. r. o, slovak tunneling and mining company. www. sti. sk.
Hlavná 74
053 42 Krompachy
Branisko tunnel Project started in 1996 and completed in 2000. Project type: Highway tunnel. Location: Branisko, Slovakia. Description: Half profile road tunnel under Branisko mountain for slovak D1 highway. . The length of the tunnel is 4800m for a cross section of 65m2 . Technology: NATM (New Austria Tunneling Method): Sequential method - drill and blast. .