Present Day
The Second Severn Crossing crosses over the tunnel on a "ground level bridge" on the English side (near the Salmon Pool), supported in such a way that no load is imposed on the tunnel. The opportunity was taken to renew the concrete cap above the tunnel in the Salmon Pool during bridge construction.
| [ ] Severn Tunnel Junction | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Legend
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
As part of the 21st Century modernisation of the Great Western Main Line, the tunnel will be electrified. The limited structure gauge available in the tunnel will pose some special difficulties. The experience gained by the constructors of the Simplon Tunnel and Gotthard Rail Tunnel in Switzerland may help to solve the problems. These tunnels make use of twin overhead rails to supply the electric power rather than overhead lines.
Read more about this topic: Severn Tunnel
Famous quotes containing the words present and/or day:
“For Africa to me ... is more than a glamorous fact. It is a historical truth. No man can know where he is going unless he knows exactly where he has been and exactly how he arrived at his present place.”
—Maya Angelou (b. 1928)
“The second day of July 1776, will be the most memorable epoch in the history of America. I am apt to believe that it will be celebrated by succeeding generations as the great anniversary festival. It ought to be commemorated, as the day of deliverance, by solemn acts of devotion to God Almighty. It ought to be solemnized with pomp and parade, with shows, games, sports, guns, bells, bonfires and illuminations, from one end of this continent to the other, from this time forward forever more”
—John Adams (1735–1826)