“As the rock heap rose gradually, it checked the river, causing it also to rise higher and higher and to cascade over the pile of stone. Riffles were caused, and an undercutting of the lower slope of the rock heap allowed it to settle and the stones to roll down stream. All of this undercutting and settling had to be made up and overcome by the rapid dumping of other large stones.” “It was necessary to raise the river bodily about eleven feet. As the water rose and became ponded on the upper side of the rock heap, train load after train load of small stone and gravel from the nearby hills was dumped to fill the spaces between the large rocks. Finally, after days and nights of struggle, the water was raised to a point where it began to flow down its former channel and less and less to pass over the rock heap. Then finer material was added and rapidly piled up on the accumulated rock mass. At first, a large amount of water passed through, and steps were taken as rapidly as possible to close the openings by dumping sand and gravel, finishing this work by hydraulicking silt or mud over the area and washing this in with a hose. By thus piling up finer and finer material and distributing it, the seepage or percolation through the mass was quickly checked and the barrier became effective.” (“The Salton Sea,” by F. H. Newell, Director of the U. S. Reclamation Service; Annual Report of the Smithsonian Institution for 1907, p. 331.) The crevasse was closed and the river forced into its old bed on the 10th of February 1907, fifty two days after President Roosevelt appealed to Mr. Harriman, and fifteen days after the first “battleship” load of rock was dumped from the first completed trestle. In order, however, that this gigantic work might be accomplished, the transportation of commercial freight on the western part of the transcontinental railroad had to be temporarily abandoned. In testifying before a House committee, about a year later, Chief Engineer Cory said: