What are the dimensions of the wall of Jericho?

Excavations at Tel es-Sultan have uncovered various walls around the ancient city of Jericho, from the remarkable stone walls that date back to the Neolithic period, to the immense plaster glacis conventionally dated to the Hyksos period. Tel es-Sultan is a rectangle approximately 1,100' x 450', so the walls would have been about 3,100 feet long.

When John Garstang excavated at Jericho he found walls which had tumbled outwards down the tel, clearly the result of an earthquake, and which he dated to the time of Joshua. However later excavations by Dame Kathleen Kenyon proved that those walls dated to the end of Early Bronze, 600 years before the time of Joshua, who is thought to have been around the start of Iron I.

The revised chronology adopted by David Down, editor of Australia's "Archaeological Diggings" magazine, and others (including Dr Rudolph Cohen, former director of the Israeli Archaeological Authority) would place Joshua at the end of Early Bronze. If true, it would mean that Garstang did indeed find archaeological evidence for one of the more dramatic stories in The Bible.