English Channel

[kingofbedsit]

How wide is the channel,and how deep at its deepest point How long is the tunnel and how deep at its deepest point Thankyou

[roscoe]

As an engineer involved with the channel tunnel, I can offer half the answer to your question:The Channel Tunnel is the longest undersea tunnel in the world, measuring 50km in total, with 39km under the sea. It consists of three tunnels - two for trains and one for service. The tunnels lie an average of 40m below the bed of the Channel. Eurotunnel locomotives are the most powerful trains in the world, travelling up to 140km per hour. The equivalent of the UK population - 57 million - travelled in the Channel Tunnel from 1994 to 2000.

[roscoe]

To answer the second part I have been in touch with Bob Scriven from the coastal protection society. If its entrance be taken to lie between Ushant and the Scully Isles, its extreme breadth (between those points) is about 100 miles., and its length about 350. At the Strait of Dover, its breadth decreases to 20 m. From the Strait of Dover the bottom slopes fairly regularly down to the western entrance of the Channel, the average depths ranging from 20 to 30 fathoms in the Strait to 60 fathoms at the entrance. An exception to this condition, however, is found in Hurds Deep, a narrow depression about 70 m. long, lying north and north-west of the Channel Islands, and at its nearest point to them only 5 m. distant from their outlying rocks, the Casquets. Towards its eastern end Hurds Deep has an extreme depth of 94 fathoms, and in it are found steeper slopes from shoal to deep water than elsewhere within the Channel. Nearing the entrance to the Channel from the Atlantic, the ioo fathoms line may be taken to mark the edge of soundings. Beyond this depth the bottom falls away rapidly. The 100 fathoms line is laid down about 180 m. W. to 120 m. S.W. of the Scilly Isles, and 80 m. W. of Ushant.

[Cerbie]

Blimey, I was impressed with your research efforts, at least, roscoe.

[kingofbedsit]

Thank you for your answer,it was terrific, Kind regards Kingofbedsits