World's long and deep tunnel was prepared in 17 years

In Switzerland the world's most long and deep tunnel has been made. This tunnel has been formally routed from Sunday. This tunnel is under the Alps mountain which is 57.1 kilometers in length and it took 17 years to be fully prepared at all. This tunnel's name is Gotaharda base tunnel and it has pierced the whole Alps Mountain there. In this tunnel 23 billion Swiss has been spent to make it. This tunnel    reduce indefinite distance to connect northern and southern  Europe. It will take 17 minutes to cross 57 miles for rail. After cheek up the tunnel nearly 266 carrier vehicles and 65 passenger rail  will cross it daily. By facing more hardship the canal has been constructed as world's record. It is built by  digging  73 different kinds of geological rock  and mountain   where 9 workers had lost their life during the construction of the tunnel.