The following arrangements were then made for passing the steamers over this cataract:—
A wire hawser was fastened round the ship. Two hawsers were then led out of the steamer, one for hauling, and other to serve as a guy to steady her, and to prevent her bow from being taken round by the force of water.
About 600 yards up-stream, at the junction of a smaller channel (B), these hawsers were slipped, and the steamer reached the southernmost point of the next bend (C).
From this point to a point 1,100 yards up-stream (D) the greatest difficulties were met with, owing to the necessity of passing ropes on to the island 300 yards up-stream (E). As many men as could swim had to cross over to this island. The steamer was then hauled up to the southern end of the island.
The rope had now to be passed from the island (E) to point (D).
At point (D) the haulage became very difficult, as the river thence, for 600 yards, to point (G), in mid-stream, is intersected by isolated rocks, upon which it was necessary to have groups of men in order to pass the rope from one rock to another. From point (G) the hawser was then led to the mainland. Guy ropes were used throughout.
After passing the rock marked (G) powerful steamers, of the “Zafir” class, were able to steam, without further haulage, to El Bana, but otherwise it was necessary to use ropes for hauling up to El Bana.
On leaving El Bana, the channel on the right bank was followed, and though the water was rapid in places, rushing between numerous small islands, no great difficulty was encountered until arrival at the foot of the Geridu (Geriddo) Rapids (3¼ miles up). Here it was necessary to tie up to the bank in order that each steamer might pass over the rapid separately.
It will be seen that the channel takes a very sharp turn here (between points A and B); a large volume of water rushes with considerable force between an island (440 yards long, with a rock at the west end) and the south bank (a promontory on the south bank), where a rope was attached to a rock, and then gradually eased off to let the bow go round.
From Geridu to Hosh El Geruf the channel is devoid of obstacles.