Laserfiche WebLink
<br />PREFACE <br /> <br /> <br />Historically, flooding in alluvial fan areas has been a difficult problem, in part because <br />there have been no standards to identify and evaluate these areas. Recognizing the need for <br />standards, the State of California, Department of Water Resources, initiated discussions with the <br />Corps of Engineers, Sacramento District, in 1992 to evaluate the current knowledge of alluvial <br />fans in California, The format and criteria for this study were established in 1994; however, <br />funding to conduct the study was not available until 1998, This study was prepared under the <br />Corps of Engineers Planning Assistance to States Program, authorized by Section 22 of the <br />Water Resources Development Act of 1974, as amended. <br /> <br />After reviewing the current literature and conducting a survey of regulatory practices for <br />each county in the State of California, the Corps of Engineers has developed standardized criteria <br />and a step-by-step procedure for identifying and classifying alluvial fans. Application of this <br />standardized procedure is intended to help local government agencies throughout California and <br />other states recognize and evaluate alluvial fans and associated flood risks, make better land use <br />decisions, and adopt protective or management measures for areas at risk. <br /> <br />This study was made possible by the cooperation and involvement from many Federal, <br />State, and county agencies, and individuals who have common concerns regarding alluvial fan <br />management and regulatory practices. <br />