20 years
it tooke 5years at most
The Long Island Expressway will take you right to it
It took 3,600 people to built the Lincoln memorial
the tunnel construction lasted from Sep 15, 1987 and Dec 10, 1993.
2 hours. If the train is one mile long and going 1 mile per hour through a mile long tunnel, in one hour the train would be completely inside the tunnel, since they are the same length and the train is only going one full tunnel length(mile) per hour. It would then take another whole hour for the end of the train to leave the tunnel, bringing the train completely out of the tunnel.
How many hours does it take to fly from LAX to Lincoln, Kansas
Counting from the moment when the front end of the train enters the tunnel until themoment when the rear end of the train leaves the tunnel, 9 minutes will elapse.
Depends how big the hole is!
for minutes and 1 sec.
The Mercy tunnel took 6 years to build. The original proposal to build the Mercy tunnel goes back to 1825. Construction did not start until 1879.
About 2 hours 15 minutes