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Title:

MAGNITUDE AND FREQUENCY OF 1993 FLOOD VOLUMES IN UPPER MISSISSIPPI RIVER BASIN

Accession Number:

00713555

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/03611981

Abstract:

Previous maximum flows on many streams and rivers were exceeded during the flood of 1993 in the upper Mississippi River Basin. Not only were peak discharges exceeded at many streamflow-gaging stations, but also flood volumes were significantly higher than previous maximums. Rainfall amounts that were greater than 127 cm (50 in.) were recorded in parts of Kansas, Missouri, and Iowa from April 1 through September 30, 1993. As a result of the excessive rainfall, 53 of the 60 stations discussed had flow volumes greater than twice the mean flow volume for April through September. The Mississippi River at St. Louis, Missouri, remained above flood stage for 144 days from April 1 to September 30, 1993, compared with 81 days during the spring and summer flood of 1973. Of the 60 stations, 24 recorded new maximum 3-day flood volumes, and 47 recorded new maximum 120-day flood volumes. This indicates that the flooding of 1993 is significant with respect to its long duration and magnitude of flow. The same aspect is indicated in the frequency analysis of the 1993 flood. During the 1993 flood, the 100-year 3-day flows were exceeded at 22 stations, and the 100-year 120-day flows were exceeded at 43 stations.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1483, 1993 Midwest Floods and Water Quality Best Management Practices. 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 #:

01399791

Language:

English

Authors:

Southard, Rodney E

Pagination:

p. 18-31

Publication Date:

1995

Serial:

Transportation Research Record

Issue Number: 1483
Publisher: Transportation Research Board
ISSN: 0361-1981

Features:

Figures (4) ; References (3) ; Tables (2)

Uncontrolled Terms:

Duration; Flood frequency

Subject Areas:

Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw

Files:

TRIS, TRB

Created Date:

Nov 16 1995 12:00AM

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