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i\ character of flood damages.. Principally, the report describes the flood-producing storm conditions, the rainfall patterns, the sequence and magnitude of flooding, the economic damages inflicted, and the operations of public bodies during the flood and post-flood recovery operations. Because of the vast areal extent of overbank flooding on the South Platte River and many of its tributaries, it was impracticw. to illustrate all areas of flooding on mapping at scales which serve useful purposes of record. For this reason, illustrations of overbanl: flooding are limited to Plum Creek, the South Platte River and Bijou Creek. The limits of overbank flooding of,the South Platte River and Sand Creek at metropolitan Denver are recorded in detail in the report principally because of the larger economic impact of major flooding in metropolitan areas. Data on the flood control effects of Cherry Creek Reservoir are included to illustrate the importance and effective- ness of well-planned flood control improvements. . " ~ b. Because of widespread flooding, which occurred in June 1965, and the tremendous economic damages inflicted, it was necessary to summarize damage estimates by major categories of damage and by principal locations. Thus, summaries are provided in the report by sub-basins, by major reaches of the South Platte River, and by urban locations. Flood damages have been summarized in the principal categories of urban, rural, and transportation damages. Urban flood damages have been summarized in the categories of residential, commer- cial and industrial, utilities, publicly-owned facilities, and miscellaneous categories. The miscellaneous categories include costs of flood fighting, policing, preservation'of public health, clean-up and relief activities. Rural damages have been summarized in categories, of farmsteads, livestock, cropland damage and crop. losses, damages to irrigation works, and miscellaneous categories. ~.lrural miscellaneous categories include items of damage similar to those' of the urban category, but also include losses to power and,telephone systems. Transportation damages have been summarized in the categories of urban streets and bridges, state highways and bridges, county roads and bridges, damages to railroad facilities and freight in transit, and the economic losses from traffic delays and detours. c. In all summary categories, associated economic losses have been summarized with estimates of direct physical losses. However, special categories of miscellaneous secondary economic losses have been computed and summarized separately. These include the estimated loss of business resulting from the depressed volume of tourist trade because of the flood occurrence during the tourist season; the estimat,ed loss of tax revenues because of casualty losses and reduced tax base; and the estimated additional economic burden on the regional economy imposed by the interest payments on disaster loans granted by the Small Business Administration. 2