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<br />ChaotBr 1 -Introduction. Describes the purpose, scope, objective, authority, and contents <br />of the manual. <br /> <br />, <br /> <br />ChaotBr 2 - Hvdroloaic StudY Uses. This chapter dBscribes thB potBntial uses of flood <br />hydrology studies. Hydrologic study uses include: flood plain delineations, flood control <br />projects, reservoir and spillway design, local cr~eria manuals, and flood waming systems. <br /> <br />. <br /> <br />Chaoter 3 - Colorado Flood Characteristics. This chapter addresses the geographical <br />regions w~hin Colorado and describes the criteria in defining the regions. Definitions of <br />Climatic and Hydrologic regions w~hin Colorado including types of flood producing events <br />are presented. Colorado storm characteristics and types of flood producing events <br />including general rainfall, intense thunderstorms, snowmeR, rainfall on snowmeR, and ice <br />affected flood events within thB state arB discussed. <br /> <br />Chaoter 4 - Colorado. Flood History. This chapter summarizes historical flood events, <br />including the sources of data and procedures for determining the magnitude of <br />documented floods. <br /> <br />Chaoter 5 - Hvdroloaic Policv and Decision Elements. This chapter addresses statewide <br />policy on certain study assumptions and design parameters. Hydrologic policy and <br />decision elements for flood hydrology include: detention effects of non-flood control <br />reservoirs and roadway embankments, effects of irrigation d~ches, storm pattems and <br />distribution, skew coefficients, expected probabil~y, and urbanization. <br /> <br />Chaoter 6 . General Aooroaches to Flood Hvdroloay. This chapter summarizes various <br />approaches to flood hydrologyc The standard approaches for determining flood hydrology <br />include: flood flow frequency analysis, regional regression equations, and rainfalVrunoff <br />analysis. Non-standard approaches to flood hydrology include: envelope curves, pale-flood <br />hydrology, transfer methods, and interpretation of historic flood events. <br /> <br />Chaoter 7 - Methods of Flood Hvdroloay. This chapter details the hydrologic methods <br />summarized in Chapter 6. Descriptions of the background theory, applications, and <br />lim~ations of various elements of flood hydrology are presented. Elements of flood <br />hydrology discussed include: precipitation, infiRration, rational formula, unit hydrographs, <br />kinematic wave routing, channel routing techniques, and discharge frequency analysis. <br /> <br />Chaoter 8 - Hydroloaic Modellina of Basins. This chapter givers exafT4)les utilizing basic <br />hydrologic methods commonly used, including model applicability, input parameters, and <br />limitations. <br /> <br />Chaoter 9 - Glossarv. This chapter includes a glossary of commonly used hydrologic <br />terms. <br /> <br />l' <br /> <br />Chaoter 10 - References. This Chapter lists references sources of information used in the <br />preparation of this manual and sOLlrces of information that have more detailed descriptions <br />of methods described in the manual. <br /> <br />. <br /> <br />Colorado Flood <br />Hydrology Manual <br /> <br />1.3 <br /> <br />a:w:r <br />