The collapse of the Saint Francis Dam prompted the creation of over a dozen separate investigations into the cause of failure. Almost all of these comprised investigative panels of prominent engineers and geologists.
Three civil engineers and/or geologists, examine an engineering drawing, bounding a large volume of drawings, shortly after the failure of the Saint Francis Dam. The man on the left may be H.A. Van Norman, assistant chief engineer of the water bureau. On the front page of the volume, some of the text reads "Corporation...Maps...Valley...Tandberg [?]...Engineer"