US Presidency
1907

S. Army; Maj. William L. Sibert, Corps of Engineers, U. S. Army; Civil Engineer H. H. Rousseau, U. S. Navy; Mr. J. C. S. Blackburn; Col. W. C. Gorgas, U. S. Army, and Mr. Jackson Smith, Commissioners. This change of authority and direction went into effect on April 1, without causing a perceptible check to the progress of the work. In March the total excavation in the Culebra Cut, where effort was chiefly concentrated, was 815,270 cubic yards. In April this was increased to 879,527 cubic yards. There was a considerable decrease in the output for May and June owing partly to the advent of the rainy season and partly to temporary trouble with the steam shovel men over the question of wages. This trouble was settled satisfactorily to all parties and in July the total excavation advanced materially and in August the grand total from all points in the canal prism by steam shovels and dredges exceeded all previous United States records, reaching 1,274,404 cubic yards.