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Title:

DETERMINING DESIGN FLOWS FOR CULVERTS AND BRIDGES ON UNGAUGED STREAMS: A WATERSHED RATIONALE. ABRIDGMENT

Accession Number:

00196652

Record Type:

Component

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Order URL: http://worldcat.org/isbn/309028302

Abstract:

A watershed rationale that assumes that outflows are integrated by the watershed to yield floods and low flows with certain provincial correlations has been explored. The provincial correlations use combinations of various watershed geomorphic characteristics, including stream length and watershed area, length, and relief. A 1, 2, 3 power relationship among average low, flood, and annual flows opens new opportunities for flood flow predictions. The possibility of being able to predict flood flows in terms of channel characteristics has been presented. To complete the integrated watershed rationale, channel characteristics have been predicted in terms of watershed characteristics by setting two flood flow equations from different mountainous regions equal to each other. The only input term used in the analysis is the average annual watershed precipitation. Floods have been shown to be strongly dependent on watershed area, relief, and stream length--those geomorphic parameters that are analogous to certain physical hydrologic processes and that make the integrated watershed rationale possible. /Author/

Supplemental Notes:

Publication of this paper sponsored by Committee on Hydrology, Hydraulics and Water Quality. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

Monograph Accession #:

01414337

Authors:

Orsborn, John F

Pagination:

pp 32-35

Publication Date:

1978

Serial:

Transportation Research Record

Issue Number: 685
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309028302

Media Type:

Print

Features:

Figures (2) ; References (13) ; Tables (2)

Uncontrolled Terms:

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Design; Highways; Hydraulics and Hydrology

Files:

TRIS, TRB

Created Date:

Sep 15 1979 12:00AM

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