Backwater at bridges and densely wooded flood plains, Yockanookany River near Thomastown, Mississippi

Colson, B. E.; Ming, C. O.; Arcement, George J.

Abstract:

Floodflow data that will provide a base for evaluating digital models relating to open-channel flow were obtained at 22 sites on streams in Alabama, Louisiana, and Mississippi. Thirty-five floods were measured. Analysis of the data indicated methods currently in use would be inaccurate where densely vegetated flood plains are crossed by highway embankments and single-opening bridges. This atlas presents flood information at the site on Yockanookany River near Thomastown, Miss. Water depths, velocities, and discharges through bridge openings on Yockanookany River near Thomastown, Miss., for floods of April 12, 1969, January 2, 1970, and March 15, 1975, are shown, together with peak water-surface elevations along embankments and along cross sections. Manning ‘s roughness coefficient values in different parts of the flood plain are shown on maps, and flood-frequency relations are shown on a graph. (Kosco-USGS)

Genre:

USGS Numbered Series

ProdID:

68507

Citation Author:

Colson, B. E.; Ming, C. O.; Arcement, George J.

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Citation Language:

ENGLISH

Citation Larger Work Title:

Citation LatN:

0325500

Citation LatS:

0324650

Citation LonE:

-0893540

Citation LonW:

-0895200

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Citation Phsyical Description:

4 maps :col. ;on 9 sheets 101 x 107 cm. and 82 x 99 cm.

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Citation Series:

Hydrologic Atlas

Citation Series Code:

Citation Series Number:

599

Citation Search Results Text:

Backwater at bridges and densely wooded flood plains, Yockanookany River near Thomastown, Mississippi; 1979; HA; 599; Colson, B. E.; Ming, C. O.; Arcement, George J.

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Citation Year:

1979

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citation/reference

Text:

Backwater at bridges and densely wooded flood plains, Yockanookany River near Thomastown, Mississippi; 1979; HA; 599; Colson, B. E.; Ming, C. O.; Arcement, George J.