Report describing various kinds of soils and their characteristics, for use in constructing roads and airfields: "The properties desired in soils for foundations under roads and airfields and for base courses under flexible pavements are: adequate strength, good compaction characteristics, adequate drainage, resistance to frost action in areas where frost is a factor, and acceptable compression and expansion characteristics. Certain of these properties, if inadequate in the soils available, may be supplied by proper construction methods" (p. B1).

Report of a hydraulic model investigation "to determine the most economical method of providing protection for Cumberland and Ridgeley against floods somewhat greater than the flood of March 1936 Specifically, the model was used to determine: the proper sections and grades of channels required to pass the design flood with maximum reductions in flood stages; the minimum heights of levees and walls; and the channel treatment required at bridges to insure the safe passage of floodwaters with minimum alterations to the structures" (p. 4).

This report contains general background information about the John H. Kerr project, which comprises a retaining structure, Buggs Island Dam, and a backwater protection structure, Island Creek Dam. It also provides more detailed information about the design, construction, and prototype observation of each of the dams.

"This report contains a summary of construction of procedures and field observations made during and after construction of Benbrook Dam, a brief review of the original design data, and comparisons of design predictions with performance data" (p. 1). It is part of a series to compare field experience and performance of existing structures with design predictions.

Preface: The purpose of this report is to present the results of a condition survey performed on taxiway 14, Davis-Monthan Air Force Base, in accordance with addendum 6 to Instructions and Outline, "Condition Survey for Existing Pavements."