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<br />regions within Colorado including types of flood producing events are presented, Colorado storm
<br />characteristics and types of flood producing events including general rainfall, intense thunderstorms,
<br />snowmelt, rainfall on snowmelt, and ice affected flood events within the state are discussed,
<br />
<br />Chapter 4 - Colorado Flood History, This chapter summarizes historical flood events, including the
<br />sources of data and procedures for determinin[l the magnitude of documented floods,
<br />
<br />Chapter 5 - Hvdroloaic Policv and Decision Elements, This chapter addresses statBwide policy on
<br />certain study assumptions and design parameters, Hydrologic policy and decision elements for flood
<br />hydrology include: detention effects of non-flood control reservoirs and roadway embankments, effects
<br />of irrigation ditches, storm patterns and distribution, skew coefficients, expected probability, and
<br />urbanization,
<br />
<br />Chapter 6 - General Approaches to Flood Hydrology, This chapter summarizes various approaches
<br />to flood hydrology, The standard approaches for determining flood hydrology include: flood flow
<br />frequency analysis, regional regression equations, and rainfall/runoff analysis, Non,standard
<br />approaches to flood hydrology include: envelope curVE,S, pale:flood hydrology, transfel' methods, and
<br />interpretation of historic flood events,
<br />
<br />Chapter 7 - Methods of Flood Hydroloay, This chapter details the hydrologic methods summarized
<br />in Chapter 6, Descriptions of the background theory, applications, and limitations of various elements
<br />of flood hydrology are presented, Elements of flood hydrology discussed include: precipitation,
<br />infiltration, rational formula, unit hydrographs, kinematic wave routing, channel routing techniques, and
<br />dischar[le frequency analysis,
<br />
<br />Chapter 8 - Hvdroloaic Modelling of Basins, This chapter givers examples utilizing basic hydrologic
<br />methods commonly used, including model applicability, input parameters, and limitations.
<br />
<br />Chapter 9 - Glossary, This chapter includes a glossary of commonly used hydrologic terms,
<br />
<br />Chapter 10- References, This Chapter lists references sources of information used in the preparation
<br />of this manual and sources of information that have more detailed descriptions of methods described
<br />in the manual.
<br />
<br />1,7 Acknowledgments. A Hydrology Advisory Committee was formed to oversee and provide
<br />guidance on the development of this flood hydrolo[lY manual. The following Federal, State, and Local
<br />Agencies, along with several consulting firms comprised the Hydrology Advisory Committee:
<br />
<br />U,S,DA Soil Conservation Service
<br />Federal Emergency Management Agency
<br />U.S, Geological Survey
<br />U,S, Army Corps of Engineers, Albuquerque District
<br />U,S, Army Corps of Engineers, Omaha District
<br />U,S, Army Corps of Engineers, Sacramento District
<br />Colorado Department of TranSpOt1ation
<br />Department of Natural Resources, Water Resources, Dam Safety
<br />Urban Drainage and Flood Control D[strict
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<br />Colorado Flood
<br />Hydrology Manual
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<br />1.:3
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<br />fRIJFT
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