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After considering the 840 pages of testimony, the Coroner’s Jury concluded:
“A sound policy of public safety and business and engineering judgment demands that the
construction and operation of a great dam should never be left to the sole judgment of one man,
no matter how eminent, without check by independent authority, for no one is free from error,
and checking by independent experts will eliminate the effect of human error and insure safety.”

REFERENCES

Committee Report for the State (1928). Causes Leading to the Failure of the St. Francis Dam,
Sacramento: California State Printing Office, 77 p.
Los Angeles County Coroner (1928). Transcript of Testimony and Verdict of the Coroner’s Jury
in the Inquest over Victims of the St. Francis Dam Disaster, Courtney Collection, Henry
E. Huntington Library, San Marino, 847 p.
Mayberry, E.L, W.G. Clark, C.T. Leeds, A.E. Sedgwick, and L.Z. Johnson (1928). Report to Mr.
Asa Keyes, District Attorney, Los Angeles County, California on The Failure of the St.
Francis Dam, April 4, 1928, 23 p., 36 pl., 5 charts.
Charles Morrison, Charles E., and Brodie, Orrin L. (1910). High Masonry Dam Design. John
Wiley & Sons, 103 p.
Outland, Charles F. (1977). Man-Made Disaster: The Story of St. Francis Dam (Revised Ed.),
Arthur H. Clark Co., Glendale, 275 p.
Rogers, J. David (2007). The 1928 St. Francis Dam Failure and the 1995/2005 La Conchita
Landslides: The Emergence of Engineering Geology and Its Continuing Role in
Protecting Society: in Guptill, P.D., Gonzalez, T., eds., 2007 Guidebooks for Field Trips,
Association of Environmental & Engineering Geologists 50 Annual Meeting (Los
th
Angeles), p 79-198.
Rogers, J. David (2006). Lessons Learned from the St. Francis Dam Failure: GeoStrata 6:2, 14-
17.
Rogers, J. David (1997). Man-Made Disaster at an Old Landslide Dam Site: in A Day in the
Field with Thomas Dibblee and J. David Rogers, St. Francis Dam area, May 17, 1997:
Field Trip Guidebook, H.E. Ehrenspect and J.R. Powell, eds., Dibblee Geological
Foundation, Santa Barbara, p. 26-103.
Rogers, J. David (1995). A Man, a dam, and a disaster: The St. Francis Dam Disaster Revisited,
D.B. Nunis, Jr., ed., Southern California Quarterly, 77(1-2), 1-109; and Ventura County
Historical Quarterly, 40(3-4), 1-109.
Rogers, J. D., and McMahon, D.L. (1993). Reassessment of the St. Francis Dam Failure:
Proceedings 10th Annual Conf, Assn. State Dam Safety Officials, Kansas City, 333-339.
Rogers, J. David (1992). Reassessment of the St. Francis Dam Failure, Engineering Geology
Practice in Southern California: ed B.W. Pipkin and R.J. Proctor; Association of
Engineering Geologists, Special Publication No. 4, pp. 639-666.
Wegmann, Edward (1918). Design and Construction of Dams (6th Edition). John Wiley & Son,
740 p., 11 pl.
Willis, Bailey (1928). Report on the Geology of the St. Francis Damsite, Los Angeles County,
California, Western Construction News, 3(June 25), 409-413.

World Environmental and Water Resources Congress 2017