Channel changes on the lower Cañada del Oro 1936-1980, and policies of flood plain management

Persistent Link:
http://hdl.handle.net/10150/191800
Title:
Channel changes on the lower Cañada del Oro 1936-1980, and policies of flood plain management
Author:
Gordon, Julia Perry.
Issue Date:
1983
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Maps of the lower Canada del Oro from aerial photographs taken between 1936 and 1980 show two periods of narrowing separated by one period of widening. Extensive channelization projects since 1959 have altered the naturally braided channel. Flood plain management regulations rely on maps of areas predicted to be flooded in the 100-year event. Changes in width, depth, and pattern of the stream alter the areas prone to overbank flooding. Although restricting development on the flood plain in this rapidly growing area could cut property losses in future floods, expensive structural projects to prevent bank erosion and lateral migration of the channel have proved to be more feasible politically.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Flood control -- Arizona -- Oro, Cañada del.; Flood control -- Arizona -- Pima County.; Floodplains -- Arizona -- Oro, Cañada del -- Management.; Floodplains -- Arizona -- Pima County -- Management.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Geosciences; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
McCullough, Jr., E. J.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleChannel changes on the lower Cañada del Oro 1936-1980, and policies of flood plain managementen_US
dc.creatorGordon, Julia Perry.en_US
dc.contributor.authorGordon, Julia Perry.en_US
dc.date.issued1983en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractMaps of the lower Canada del Oro from aerial photographs taken between 1936 and 1980 show two periods of narrowing separated by one period of widening. Extensive channelization projects since 1959 have altered the naturally braided channel. Flood plain management regulations rely on maps of areas predicted to be flooded in the 100-year event. Changes in width, depth, and pattern of the stream alter the areas prone to overbank flooding. Although restricting development on the flood plain in this rapidly growing area could cut property losses in future floods, expensive structural projects to prevent bank erosion and lateral migration of the channel have proved to be more feasible politically.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshFlood control -- Arizona -- Oro, Cañada del.en_US
dc.subject.lcshFlood control -- Arizona -- Pima County.en_US
dc.subject.lcshFloodplains -- Arizona -- Oro, Cañada del -- Management.en_US
dc.subject.lcshFloodplains -- Arizona -- Pima County -- Management.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGeosciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairMcCullough, Jr., E. J.en_US
dc.contributor.committeememberBaker, Victor R.en_US
dc.contributor.committeememberIngram, Helen M.en_US
dc.identifier.oclc11863977en_US
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