Research Article
Jan 1974
Issues in Water Resources Impact Assessment
Publication: Journal of the Hydraulics Division
Volume 100, Issue 1
Abstract
Formal impact assessment, defined as the identification, description, and evaluation of changes associated with proposed actions, have been mandated by recent legislation relevant to federal water resources agencies. This paper uses an example involving proposed reservoirs in Carmel Valley, California, to demonstrate the various concepts which are introduced. The paper demonstrates how evaluative factors, defined as the goals, concerns, constraints, etc., that affected publics and other decision makers consider in ranking alternative actions, can be used in deciding on which impacts to forecast and at what levels of detail. The paper presents a classification of causative factors which encourages a systematic examination of the various aspects of a proposed action that may bring about change. Network diagrams of cause-effect relations, and the problems associated with the analysis of indirect impacts are also analyzed. The paper summarizes a number of characteristics of impacts which can be used in describing the results of an impact assessment.
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Published In
Journal of the Hydraulics Division
Volume 100 • Issue 1 • January 1974
Pages: 173 - 187
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Jan 1974
Published online: Feb 3, 2021
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Authors
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Leonard Ortolano, M.ASCE
Asst. Prof.; Dept. of Civ. Engrg., Stanford Univ., Stanford, CA
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.