Contents include: Colorado River -- silted channel dredging is planned, by R.W. Davies, Western Construction News(October 1947); Raising the Colorado River dredge, by C.P. Vetter, West. Const. News(June 15, 1950); Construction finale at Davis Dam, by Harold E. Dean in West. Const. News(December 15, 1949); Development of the Colorado River, by E.A. Moritz, presented at the 1950 Spring Meeting, ASCE, Los Angeles, April 26-29, 1950; Construction engineering problems at Davis Dam, by H.F. Bahmeier, presented at 1950 Spring meeting, ASCE, Los Angeles, April 22-26, 1950; Effects of dams and like obstructions in silt-bearing streams, by Elmo G. Harris in Engineering News-Record(v. XLVI, no.7, August 15, 1901); Behavior of debris-carrying rivers in flood, by F.N. Holmquist, EN-R (no.9, February 26, 1925); Why de-silting works for the All-American Canal?', by C.P. Vetter, EN-R(March 4, 1937); and others.