The tunnel will eventually be more than 60 miles long and was started in 1970 and is expected to be complete in 2020.
Construction on the tunnel began in 1970 and is expected to be completed in 2020. The tunnel will eventually be more than 60 miles long.
The tunnel will eventually be more than 60 miles long. Construction on the tunnel began in 1970 and is expected to be completed in 2020.
The tunnel will eventually be more than 60 miles long. Construction on the tunnel began in 1970 and is expected to be completed in 2020.